National Science Foundation

The National Science Foundation (NSF) is an independent federal agency established in 1950 and based in Alexandria, Virginia. It is dedicated to supporting research and education in science and engineering across a wide range of disciplines. The NSF provides significant non-dilutive funding, up to $1.5 million, to startups and small businesses through its America's Seed Fund initiative, which is part of the Small Business Innovation Research (SBIR) program mandated by Congress. With an operating budget of approximately $7.8 billion, the NSF is committed to advancing fundamental research and education, thus fostering innovation and technological development in the United States.

James Donlon

Program Director

Debasis Majumdar

Program Director

Graciela Narcho

Staff Associate

Sethuraman Panchanathan

Director

Past deals in Renewables

WiLO Networks

Grant in 2024
WiLO Networks focuses on creating an innovative low-power sensor network platform that utilizes wake-up radio technology to facilitate continuous, low-latency communication while enhancing battery longevity and reducing electronic waste. This technology is particularly applicable in high-density deployments, especially within precision agriculture, where it aims to optimize sensor node installations using minimal battery power or energy harvesting. By improving the feasibility of sensor deployments in challenging environments, WiLO Networks seeks to support various Internet of Things (IoT) applications across multiple industries, including warehousing, healthcare, and retail. The company’s solutions are designed to enhance sustainability and economic growth by increasing operational efficiency and crop yields while lowering costs for farmers and other users.

Thiozen

Grant in 2024
Thiozen is a company based in Belmont, Massachusetts, that specializes in innovative hydrogen gas production technology aimed at reducing greenhouse gas emissions. Founded in 2020, Thiozen employs a unique chemical process that converts hydrogen sulfide into hydrogen gas. This method not only significantly lowers greenhouse gas emissions but also allows clients to bypass the carbon emissions typically associated with hydrogen production from natural gas and the high costs linked to electrolysis. By offering a low-cost and low-emission alternative, Thiozen positions itself as a key player in the transition to cleaner energy solutions.

Colorado-Wyoming Climate Resilience Engine

Grant in 2024
Colorado-Wyoming Climate Resilience Engine workforce development initiative is to promote inclusivity and diversity.CO-WY Engine will be an essential driver of economic growth, enhancing the region's competitiveness and positioning it as a leader in sustainable and climate-resilient technologies.

Aquagga

Grant in 2023
Aquagga, Inc. is dedicated to addressing the significant threat posed by PFAS contaminants in water resources and public health. The company specializes in developing and operating advanced PFAS destruction units using its proprietary Hydrothermal Alkaline Treatment (HALT) technology. In addition to these destruction units, Aquagga is advancing PFAS sensing technology and other water pollutant mitigation and remediation solutions. The company serves various sectors, including government and municipal markets, as well as industrial wastewater treatment, positioning itself as a leader in the fight against PFAS pollution. Aquagga also employs supercritical water technology, coupled with advanced additive manufacturing, to enhance the treatment of industrial effluents, thereby contributing to environmental sustainability and social impact.

Sylvatex

Grant in 2022
Sylvatex, Inc. is a fuel technology company based in Los Angeles, California, founded in 2007. It specializes in the development of a unique process that combines vegetable-oil-based surfactants with microbubbles of water and ethanol to create a microemulsion. This innovative approach enables oil companies to lower their production costs while facilitating the generation of green diesel fuel. Sylvatex's technology aims to enhance the efficiency and sustainability of fuel production, contributing to a transition towards more environmentally friendly energy sources.

Octet Scientific

Grant in 2022
Octet Scientific specializes in the production of advanced organic electrolyte chemicals designed to enhance the efficiency and longevity of zinc-based batteries. The company's innovative OctoLyte products optimize electrolyte chemistry, making them suitable for a range of applications, including backup power, grid storage, portable devices, and mobility solutions. By integrating these products into existing electrolyte systems, Octet Scientific enables its customers to improve battery performance, ultimately leading to more efficient and cost-effective energy storage options.

Stoke Space

Grant in 2022
Stoke Space is dedicated to developing a fully reusable medium-lift rocket named Nova, aimed at providing cost-effective and sustainable access to space. The company focuses on creating rockets that can be reused multiple times, offering low-cost, on-demand launch services designed for daily operations. By emphasizing sustainability, Stoke Space seeks to reduce the atmospheric impact of space missions while supporting the growth of the space economy. Their vertically integrated design and manufacturing capabilities enable them to deliver reliable solutions for clients looking to launch satellites efficiently and sustainably.

AeroShield

Grant in 2022
AeroShield specializes in the production of a super-insulating, nanoporous glass material designed for energy-efficient windows. This innovative material, made from silica aerogel, provides optical clarity akin to traditional glass while delivering insulation performance that is 50% superior to standard windows. By integrating AeroShield's technology between two glass panes, manufacturers can significantly enhance the thermal efficiency of their products. Additionally, the payback period for AeroShield-enhanced windows is up to five times faster than that of comparable high-performance windows, making it an attractive option for both manufacturers and consumers. This focus on sustainability and energy efficiency supports industry compliance goals and improves overall product performance.

Sunchem

Grant in 2022
Sunchem develops Nano Filters for selective metal capture from complex water mixtures to replace inadequate separation technologies in high-value markets such as water purification, energy, and critical metal extraction. They provide industries with a cost-effective and energy-efficient approach to improving water quality while also capturing value from their waste streams.

Aesir Technologies

Grant in 2022
Aesir Technologies specializes in the development and commercialization of next-generation Nickel-Zinc (Ni-Zn) battery technologies that utilize sustainable, non-toxic materials that can be safely and easily recycled. Aesir Technologies was incorporated in 2011 and has a research and development (R&D) facility in Bozeman, Montana, and a low-rate initial production facility in Joplin, Missouri.

NanoDian

Grant in 2022
NanoDian is a nanotechnology company focused on developing and commercializing advanced lithium-ion batteries. The company specializes in creating nanostructured materials for battery cathodes, aiming to enhance performance in both portable and stationary energy storage applications, including electric vehicles and microgrids. Utilizing patented laboratory-developed technology, NanoDian addresses key challenges in current battery technology, such as improving life cycles, charge rates, safety, and cost. Through its innovative approach, NanoDian seeks to provide significant benefits to users across various energy storage devices.

Arctura

Grant in 2022
Arctura is focused on advancing sustainable energy solutions, particularly in the wind energy sector. The company develops innovative technologies aimed at enhancing the efficiency and profitability of renewable energy plants. Their solutions address significant challenges in the industry, such as reducing costs associated with lightning damage, minimizing losses from underperforming wind assets, and mitigating the risks of curtailment. Additionally, Arctura has created a green nitric acid technology that synthesizes nitric acid using air, water, and renewable electricity. This innovation not only provides clients with affordable energy options but also contributes to lowering the carbon footprint of various industries, while supporting local energy demands from wind and solar sources.

TEVERRA

Grant in 2022
TEVERRA is a clean energy technology company that provides innovative subsurface solutions aimed at optimizing carbon storage, energy storage, and geothermal operations. The company focuses on converting oil and gas assets into geothermal resources and offers a range of services including subsurface thermal energy storage, geothermal systems, and power plant design. Additionally, TEVERRA specializes in subsurface monitoring, visualization, and control for both geothermal and oil and gas sectors. By developing advanced technology and implementing international projects, TEVERRA supports the transition to a low-carbon and sustainable energy mix.

Re-Synth International

Grant in 2022
Re-Synth International provides cost benefits derived from fuel efficiency while also decreasing your environmental footprint. Their patented technologies reduce the cost of clean fuel by eliminating contaminants without producing harmful by-products or changing the viscosity of the fuels.

Elateq

Grant in 2022
Elateq specializes in advanced water treatment solutions that effectively purify wastewater by utilizing electrochemical technology. Their innovative system treats contaminated water by passing it through low-level electricity combined with a proprietary carbon material, which enhances the purification process. This method effectively removes a variety of contaminants, including heavy metals, pathogens, and toxic chemicals, ensuring that the water meets the specific requirements of both municipal and industrial facilities. Elateq's tailored approach addresses the diverse needs of clients seeking to improve water quality and environmental sustainability.

Tyfast

Grant in 2022
Tyfast is a company focused on producing renewable energy and developing advanced lithium batteries. Its primary goal is to address the challenges associated with battery range, cycle life limitations, and charging safety. By creating innovative anodes and energy storage solutions, Tyfast provides clients with enhanced lithium transport and cycling stability, allowing for fast charging and extended battery life.

Ladon Robotics

Grant in 2022
Ladon Robotics specializes in the development of autonomous cargo vessels that harness wind and solar power for efficient transportation. By integrating sails coated with advanced solar cells, these vessels can charge batteries that sustain operations even in the absence of wind. This innovative approach allows Ladon Robotics to offer a reliable and cost-effective alternative to conventional cargo ships, enabling clients to significantly reduce fuel and labor expenses. The company's focus on automation and swarm logistics further enhances the efficiency of cargo services, positioning it as a leader in sustainable maritime logistics.

LeapFrog Design

Grant in 2022
LeapFrog Design focuses on developing sustainable water treatment and reuse systems for residential use, enhancing water conservation and improving living conditions. Their innovative approach utilizes plants and natural materials to treat and recycle household greywater, promoting water security and flexibility for homeowners. By pioneering regenerative infrastructure, LeapFrog Design aims to create resilient communities while helping individuals save money and reduce environmental pollution.

NextGen Battery Technologies

Grant in 2022
NextGen Battery Technologies focuses on the development of innovative electric vehicle batteries utilizing proprietary solid-state electrolyte and cobalt-free cathode technology. Their HC series of composite electrolytes effectively merges the advantageous characteristics of ceramic and polymeric materials. This battery technology is designed to facilitate the large-scale adoption of electric vehicles by providing a high-performance energy solution that maintains high ionic conductivity across a range of temperatures. The synthesis of these batteries employs scalable processes, allowing car manufacturers to easily integrate them as drop-in replacements for existing cathode materials.

KineticCore Solutions

Grant in 2022
KineticCore Solutions is a technology manufacturing company that produces energy storage systems. It offers an energy storage package and its operating environment easily matches that of current and future wind and solar farms. The all-composite structural design of the KineticCore Battery contains no hazardous materials, which greatly simplifies safety, shipping, and recycling compared to chemical batteries. In 2019, James, Jim, and Chuck Clegern co-founded the company with Steve Milliren in Loveland, Colorado.

UNIGRID

Grant in 2022
UNIGRID develops sustainable and affordable sodium-based batteries using abundant materials. They aim to put a battery into every home, the grid, and other distributed energy storage applications. They use dense Na-alloy and a non-flammable electrolyte, which led to high energy density and improved safety.

Nth Cycle

Grant in 2022
Nth Cycle is a metal processing technology company that focuses on recovering critical minerals through innovative electro-extraction methods. It collaborates with battery recyclers and mining operations to extract production-grade minerals from e-waste and low-grade mine tailings, offering a cleaner and more customizable alternative to traditional hydrometallurgical and pyrometallurgical processes. By utilizing its advanced recycling technology, Nth Cycle aims to reduce reliance on primary mining, thereby creating a sustainable secondary source of rare earth metals in the United States. This approach supports the manufacturing and recycling industries while contributing to advancements in clean energy.

AM Batteries

Grant in 2022
AM Batteries manufactures Li-ion batteries using solvent-free electrode manufacturing technology. The company was founded in 2016 and is headquartered in Chelmsford, Massachusetts.

SkyNano

Grant in 2022
SkyNano is a technology company dedicated to addressing carbon pollution through innovative solutions. It specializes in converting carbon emissions into valuable chemical feedstocks for the production of advanced carbon materials. Utilizing proprietary electrochemistry, SkyNano offers a low-cost and scalable manufacturing process that is both sustainable and efficient. The company's approach aims to provide functional materials that can have a wide range of applications, helping clients mitigate the adverse effects of climate change while promoting a more sustainable future.

NanoFlex Power

Grant in 2022
NanoFlex Power Corporation specializes in the research, development, commercialization, and licensing of advanced photovoltaic technologies focused on thin-film solar products. Based in Scottsdale, Arizona, the company has established a portfolio of U.S. patents and international counterparts resulting from its sponsored research programs. Its innovations include Gallium Arsenide-based solar thin films and organic photovoltaic materials, which are designed for high efficiency, flexibility, and aesthetic applications such as semi-transparency and tinting. The technologies are applicable across a wide range of sectors, including portable and off-grid power generation, building-integrated photovoltaics, aerospace, and automotive industries, as well as Internet of Things applications. Founded in 1994, NanoFlex Power aims to unlock new opportunities in solar energy with its cost-effective and high-performance solutions.

ChloBis Water

Grant in 2021
ChloBis Water provides a desalination battery. It is constructed by combining Bi as a Cl-storage electrode and Na as a Na-storage electrode. Desalination batteries combine energy storage and release with the removal and release of sodium and chlorine. They use salt ions to store and release energy while desalinating water.

Two Bears Environmental Consulting

Grant in 2021
Two Bears Environmental Consulting, founded in 2015 and based in Anchorage, Alaska, specializes in providing environmental services that assess the impact of climate change on various projects. The company produces climate impact statements that evaluate environmental influences and projected climate scenarios, helping clients understand potential risks. Additionally, Two Bears assists in securing grants from government and organizational sources, and offers unmanned aerial vehicle (UAV) services for drone-based data collection. This combination of services helps ensure regulatory compliance and promotes sustainable practices among businesses.

Thiozen

Grant in 2021
Thiozen is a company based in Belmont, Massachusetts, that specializes in innovative hydrogen gas production technology aimed at reducing greenhouse gas emissions. Founded in 2020, Thiozen employs a unique chemical process that converts hydrogen sulfide into hydrogen gas. This method not only significantly lowers greenhouse gas emissions but also allows clients to bypass the carbon emissions typically associated with hydrogen production from natural gas and the high costs linked to electrolysis. By offering a low-cost and low-emission alternative, Thiozen positions itself as a key player in the transition to cleaner energy solutions.

SuperClean Glass

Grant in 2021
SuperClean Glass develops technology that is based on proprietary electrodes that generate electric fields to sweep away dust from solar panels, thereby offering cleaning efficiency that is focused on utility-scale solar installations in desert regions.

NoMIS Power Group

Grant in 2021
NoMIS Power Group specializes in the manufacturing of silicon carbide power semiconductor devices and packaging architectures. The company develops silicon carbide-based power modules that support the global energy transition by enabling the use of innovative semiconductor devices and power packaging materials. Their offerings aim to help businesses reduce energy costs while promoting electrified transportation and renewable energy infrastructure. In addition to their product line, NoMIS Power provides technical consulting, SiC design services, and research and development support tailored for the electronics sector.

Marel Power Solutions

Grant in 2021
Marel Power Solutions develops power inverters that are compact, re-usable, upgradable, and resilient against die-supply shortages. Their subsystems are compact, re-usable, upgradable, and resilient against die-supply shortages, enabling clients to have a new generation of power inverters.

TruSpin Nanomaterial Innovation

Grant in 2021
TruSpin Nanomaterial Innovation specializes in the production of advanced nanofibers using a unique A/C electrospinning process. This innovative technology allows for the cost-effective mass production of complex nanofiber compositions that are difficult to achieve with traditional methods. Currently, TruSpin focuses on utilizing these nanofibers as additives in battery chemicals, significantly enhancing energy density. By providing clients with superior materials, TruSpin aims to improve the performance and efficiency of battery technologies.

CrossLink Composites

Grant in 2021
CrossLink Composites, founded in 2017 and based in Harriman, Tennessee, specializes in developing proprietary carbon fiber technology tailored for various industrial applications. The company focuses on providing low-cost, high-performance carbon fiber and composites designed for sectors such as cleantech, automotive, wind energy, and civil infrastructure. By emphasizing high-volume industrial applications, CrossLink Composites aims to meet the specific needs of its customers with customized carbon fiber solutions.

Sync Energy AI

Grant in 2021
Syn is an Energy-Tech startup helping electric utilities save money, time, and resources while they prepare for, or deal with natural disaster-like emergencies. We own two proprietary Artificial Intelligence technologies that help us do this, and deliver real value via our SaaS/PaaS offerings.

Solestial

Grant in 2021
Solestial, Inc. is a solar energy company focused on developing innovative solar panels specifically designed for use in space. Its core technology features an ultra-thin silicon solar cell that can self-repair radiation damage at normal operating temperatures, packaged in a flexible, lightweight panel. These panels are engineered to experience minimal degradation over a lifespan of up to 10 years in low Earth orbit. Solestial's manufacturing process allows for mass production using automated machines, resulting in costs that are 90% lower than traditional technologies and offering virtually unlimited capacity. By addressing the energy needs of current satellite constellations and future utility-scale infrastructure in space, Solestial is contributing to the development of the emerging space economy.

Valgotech

Grant in 2021
Valgotech, founded in 2018 and located in Fishers, Indiana, focuses on advanced materials and energy storage solutions, particularly in the realm of renewable energy systems. The company develops innovative hybrid composites utilizing micro and nanomaterials to enhance the energy density and cycling performance of lithium-ion batteries. By improving these aspects, Valgotech aims to deliver high-performance energy storage options that remain affordable for clients, thereby advancing the efficiency and accessibility of clean energy technologies.

Minerva Lithium

Grant in 2021
Minerva Lithium, founded in 2020 in Greensboro, North Carolina, specializes in developing advanced extraction techniques for critical minerals, particularly lithium. The company focuses on direct lithium extraction technology designed to enhance the recovery of lithium while also recovering usable water. Utilizing a proprietary nano mosaic membrane filter system, Minerva Lithium enables various sectors, including renewable energy, automotive, and technology, to extract high-grade pure minerals from non-traditional water resources. Its innovative approach aims to accelerate the development of clean energy technologies and support the growing lithium market.

SunDensity

Grant in 2021
SunDensity has developed a groundbreaking Photonic Smart Coating (PSC™) technology that enables the up and down conversion of the wavelengths in white light (UV to IR) to match the desired band which can solve several in-efficiencies in photonics. By conversion of spectrum, they have developed, and field tested a patent-pending PSC™ that significantly reduces the cost of electricity generated by solar photovoltaics (PV) applications, customizes thermal and optical behavior of architectural glass, and increases the quantum efficiency of optoelectronic instruments.

WiLO Networks

Grant in 2021
WiLO Networks focuses on creating an innovative low-power sensor network platform that utilizes wake-up radio technology to facilitate continuous, low-latency communication while enhancing battery longevity and reducing electronic waste. This technology is particularly applicable in high-density deployments, especially within precision agriculture, where it aims to optimize sensor node installations using minimal battery power or energy harvesting. By improving the feasibility of sensor deployments in challenging environments, WiLO Networks seeks to support various Internet of Things (IoT) applications across multiple industries, including warehousing, healthcare, and retail. The company’s solutions are designed to enhance sustainability and economic growth by increasing operational efficiency and crop yields while lowering costs for farmers and other users.

Beta Analytic

Grant in 2021
Beta Analytic is a company specializing in radiocarbon dating and isotope analysis, serving various scientific fields including geochronology and environmental studies. The firm provides a range of services that encompass stable isotope analysis, biobased and natural product testing, essential oil testing, and renewable carbon measurement. Additionally, it offers nitrate source tracking and biofuels renewable carbon testing. By utilizing advanced techniques such as accelerator mass spectrometry and isotope ratio mass spectrometry, Beta Analytic enables researchers to accurately measure natural levels of radiocarbon and stable isotope ratios, facilitating the study of carbon-based materials for diverse applications.

SIEV

Grant in 2021
SIEV Technologies develops a catalytic membrane technology that will convert biomass waste into useful bio-products. The company was founded in 2020 and is headquartered in Fayetteville, Arkansas.

Pyran

Grant in 2021
Pyran LLC, based in Madison, Wisconsin, specializes in the development of 1,5-pentanediol, an environmentally friendly compound derived from renewable wood and crop waste resources, such as corn cobs. Founded in 2017, the company serves the chemical industry by providing a sustainable alternative to traditional petroleum-based chemicals. Pyran's diol product is utilized as a raw material in the production of various everyday materials, including paints, coatings, adhesives, biodegradable films, and plastics. By offering renewable five-carbon products, the company enables clients to access higher-performing and cost-effective materials while addressing the challenges posed by diminishing natural resources and climate change.

Battery Streak

Grant in 2021
Battery Streak makes batteries that charge in less than 10 minutes, discharge with high power last longer than traditional Lithium Ion batteries, and never get hot.

CryoDesalination

Grant in 2021
CryoDesalination is a Houston-based company founded in 2012 that focuses on developing an innovative desalination process aimed at providing access to clean water globally. The company's technology utilizes a unique method of ice-brine separation, which involves the interaction of oil, brine, and ice within a separation column. This approach is designed to be both energy-efficient and cost-effective, utilizing low-cost materials to make desalination more accessible. By addressing water scarcity, CryoDesalination aims to significantly enhance the quality of life for those affected by a lack of fresh water, helping communities to improve their living conditions and achieve greater independence.

Andluca

Grant in 2021
Andluca is a company that specializes in the development of innovative smart glass and smart window products, utilizing UV light and solar energy to enhance energy efficiency in buildings and homes. Founded in 2017 as a spin-out from Princeton University, Andluca has established its operations in New York and California. The company focuses on advanced solar materials, coatings, and embedded systems that enable glass and window products to respond intelligently to environmental changes. Its products can be installed like conventional windows or facades, offering a cost-effective solution that reduces installation time and the carbon footprint typically associated with traditional smart window technologies. Through partnerships with window and facade manufacturers, Andluca provides a diverse range of smart glass options to its clients.

Phoenix Waste Solutions

Grant in 2021
Phoenix Waste Solutions develops cutting-edge technology for waste disposal machines that are both pollution-free and fuel-free. The company was founded in 2019 and is headquartered in Chauvin, Louisiana.

ZiTechnologies

Grant in 2021
ZiTechnologies is a company based in Hancock, Michigan, that specializes in producing end product pellets designed for power and heat applications. These pellets are notable for their reduced chlorine content, making them a viable alternative to traditional coal. By offering a more environmentally friendly option, ZiTechnologies aims to meet the growing demand for sustainable energy solutions in various industries.

Generate

Grant in 2021
Generate provides for the sustainable development of cities and specializes in streamlining the design and delivery of mass timber through our pre-vetted building solutions and generative systems.

Nitricity

Grant in 2021
Nitricity is an energy company focused on the production of renewable nitrogen fertilizers with zero carbon emissions. It specializes in creating electrified, climate-smart fertilizers, specifically nitric acid and ammonia, which can be utilized independently or together to produce ammonium nitrate fertilizer. This innovative approach aims to bring high-quality fertilizer products closer to farmers, allowing them to minimize wasteful runoff and optimize fertilizer application timing based on field readiness. By enhancing nitrogen delivery capabilities, Nitricity supports sustainable agricultural practices and contributes to environmentally responsible farming worldwide.

Sperra

Grant in 2021
Sperra is focused on advancing renewable energy through innovative energy storage and construction technologies. The company has developed a long-duration energy storage solution known as M-PHES, which utilizes large hollow concrete spheres placed on the seafloor to store mechanical energy as pressure. This system retains the advantages of conventional pumped hydro storage while expanding deployment possibilities, reducing development timelines, and enhancing modularity. Additionally, Sperra is pioneering three-dimensional concrete printing technology to create custom infrastructure for offshore wind, floating solar, and wave energy projects. By employing automated design and construction methods, the company minimizes material waste and carbon emissions while utilizing local resources, thereby contributing to more resilient and cost-effective solutions for the renewable energy sector.

Heila Technologies

Grant in 2021
Heila Technologies develops a platform that connects solar arrays, batteries, and other distributed energy resources (DERs) to create self-managing microgrids. The Heila IQ Platform is a decentralized optimization system that simplifies the integration and operation of these resources, allowing for autonomous management and optimization. This technology transforms various components, such as batteries and solar arrays, into independent intelligent agents capable of self-organization and regulation. Heila Technologies serves a diverse clientele, including utility representatives, developers, energy users, and public officials. Founded in 2017 and based in Somerville, Massachusetts, the company aims to facilitate the commercialization of its platform, providing granular analysis and data-driven recommendations to enhance the resilience and efficiency of energy networks while promoting energy savings and reducing carbon emissions.

Margik

Grant in 2021
Margik is a manufacturer of organic electronic devices that specializes in the research and development of sustainable lighting technology. The company focuses on creating thin, customizable printed lighting solutions, including fully recyclable organic light stickers and business cards. These innovative products not only enhance brand visibility but also offer elevated thermal, chemical, and electronic stability. By providing environmentally friendly options, Margik aims to help clients reduce greenhouse gas emissions associated with consumer use, contributing to a more sustainable future in the consumer electronics industry.

RePurpose Energy

Grant in 2021
RePurpose Energy specializes in the development of sustainable energy storage systems utilizing repurposed electric vehicle batteries. By converting battery waste into valuable resources, the company enhances the resilience and sustainability of battery supply chains while supporting the global shift towards renewable energy. RePurpose Energy's innovative approach includes bundling reused EV batteries with advanced hardware and software solutions that monitor and manage various parameters such as temperature and charge levels. This enables clients to effectively address the complexities associated with second-life energy storage, ultimately contributing to a more sustainable energy landscape.

AeroShield

Grant in 2021
AeroShield specializes in the production of a super-insulating, nanoporous glass material designed for energy-efficient windows. This innovative material, made from silica aerogel, provides optical clarity akin to traditional glass while delivering insulation performance that is 50% superior to standard windows. By integrating AeroShield's technology between two glass panes, manufacturers can significantly enhance the thermal efficiency of their products. Additionally, the payback period for AeroShield-enhanced windows is up to five times faster than that of comparable high-performance windows, making it an attractive option for both manufacturers and consumers. This focus on sustainability and energy efficiency supports industry compliance goals and improves overall product performance.

Syzygy Plasmonics

Grant in 2021
Syzygy Plasmonics, Inc. is a Houston-based company that designs, develops, and manufactures photocatalytic reactor systems for industrial chemical reactions. Founded in 2017, the company focuses on creating reactors capable of generating fuel cell quality hydrogen from ammonia, making them suitable for small-to-medium-scale applications and hydrogen refueling stations for fuel cell vehicles. Unlike conventional chemical reactors, Syzygy's technology operates using light as an energy source and at temperatures over 1,000°F lower, which significantly reduces maintenance costs and allows for rapid production start-stop capabilities. This innovative approach not only enhances efficiency but also supports the decarbonization of hard-to-abate industries by enabling the use of renewable electricity and minimizing reliance on fossil fuels.

Caribou Biofuels

Grant in 2021
Caribou Biofuels manufactures biofuels for the conversion of biomass into fuels. The company was established in 2017 and is based in Modesto, California.

Silartek

Grant in 2021
SilarTek, founded in 2020 and based in Leominster, Massachusetts, focuses on developing innovative solar silicon technology to enhance the affordability of solar panels. The company employs molten salt electrolysis combined with advanced molten salt compositions to produce low-cost solar-grade silicon. This technology aims to make solar energy more accessible to a broader consumer base, facilitating the adoption of renewable energy solutions.

NALA Membranes

Grant in 2021
NALA Membranes specializes in the production of chlorine-stable reverse osmosis membranes designed to enhance water treatment efficiency while minimizing waste and energy consumption. Their patented materials create durable membranes that resist fouling and failure, making them suitable for demanding industrial wastewater applications. By offering solutions that lower operating costs and reduce greenhouse gas emissions, NALA Membranes supports both economic and environmental sustainability. The company's products are utilized across various sectors, including industrial, municipal, residential, and wastewater treatment systems, effectively addressing a range of contaminants and operating conditions.

Coreshell

Grant in 2021
Coreshell Technologies, Inc. is a company focused on developing advanced lithium-ion batteries, primarily targeting the electric vehicle and grid storage markets. Founded in 2017 and based in Berkeley, California, Coreshell has pioneered a nanolayer thin-film coating technology that addresses the degradation issues commonly faced by rechargeable batteries. This innovative coating protects battery electrodes from chemical reactions that can diminish capacity and safety, thereby enhancing the overall performance and durability of the batteries. By seamlessly integrating into existing manufacturing processes, Coreshell's technology aims to significantly improve battery capacity, safety, and cost-effectiveness, facilitating a smoother transition to electric transportation and renewable energy solutions.

Natrx

Grant in 2021
Natrx specializes in providing innovative, nature-based solutions for coastal resilience and infrastructure protection. By leveraging advanced technology and geospatial software, the company aims to create sustainable and high-performance solutions that integrate nature directly into infrastructure. Natrx's approach addresses the limitations of traditional methods, which are often costly and ecologically harmful. The company's offerings are tailored to meet the performance needs of large-scale public and private asset owners, enabling builders, architects, and ecologists to enhance environmental outcomes while developing infrastructure. Natrx's commitment to marrying ecological considerations with infrastructure development seeks to set a new standard for sustainability and economic impact.

SolMem

Grant in 2021
SolMem creates water distillation technology that may be used to desalinate and purify any water source. The company was established in 2017 and is headquartered in Houston, Texas.

Aquagga

Grant in 2021
Aquagga, Inc. is dedicated to addressing the significant threat posed by PFAS contaminants in water resources and public health. The company specializes in developing and operating advanced PFAS destruction units using its proprietary Hydrothermal Alkaline Treatment (HALT) technology. In addition to these destruction units, Aquagga is advancing PFAS sensing technology and other water pollutant mitigation and remediation solutions. The company serves various sectors, including government and municipal markets, as well as industrial wastewater treatment, positioning itself as a leader in the fight against PFAS pollution. Aquagga also employs supercritical water technology, coupled with advanced additive manufacturing, to enhance the treatment of industrial effluents, thereby contributing to environmental sustainability and social impact.

Electra

Grant in 2021
Electra is dedicated to reducing carbon dioxide emissions in the iron and steel production industry through innovative electrochemical and hydrometallurgical processes. The company has developed alternative steelmaking technology that aims to electrify and decarbonize the production process, allowing for the creation of low-carbon clean iron from various ores. By utilizing renewable energy sources, Electra enables steel producers to lower energy intensity and costs, contributing to a more sustainable approach to steelmaking.

Molten Salt Solutions

Grant in 2021
Molten Salt Solutions is a technology firm based in Santa Fe, New Mexico, established in 2018. The company focuses on advancing nuclear power technology by developing a platform that facilitates molten salt synthesis and purification. This innovative approach aims to produce large quantities of isotopically-enriched materials essential for both advanced fission and fusion nuclear power. Molten Salt Solutions' technology addresses critical requirements for energy security and reducing carbon emissions, thereby supporting businesses in the rapid development and deployment of isotope enrichment applications.

Flux Marine

Grant in 2021
Flux Marine builds electric marine propulsion systems characterized by performance.

Verdox

Grant in 2021
Verdox is dedicated to reversing climate change through the development and deployment of advanced technology. The company’s proprietary electro-swing process, developed at MIT, enables carbon dioxide and other acid gases to be captured with up to 80% less energy and 70% less cost than conventional approaches.

BlueDot Photonics

Grant in 2021
BlueDot Photonics, Inc. is a company based in Kirkland, Washington, that designs, develops, and produces solar panels and various photonic devices. Established in 2019, the company focuses on enhancing solar panel performance and durability through innovative semiconductor materials. By improving the power output of solar panels, BlueDot Photonics aims to make clean energy more accessible and affordable for a broader range of customers.

Heirloom

Grant in 2021
Heirloom specializes in direct air capture technology aimed at enhancing the natural absorption of carbon dioxide from the atmosphere. The company's innovative system accelerates the ability of limestone to capture CO2, allowing for its permanent storage underground. By operating on renewable energy, Heirloom's technology promotes carbon capture and utilization at a large scale, with the goal of removing significant amounts of atmospheric CO2. This approach not only minimizes secondary impacts but also supports clients in restoring the atmosphere through natural processes.

Minerva Lithium

Pre Seed Round in 2021
Minerva Lithium, founded in 2020 in Greensboro, North Carolina, specializes in developing advanced extraction techniques for critical minerals, particularly lithium. The company focuses on direct lithium extraction technology designed to enhance the recovery of lithium while also recovering usable water. Utilizing a proprietary nano mosaic membrane filter system, Minerva Lithium enables various sectors, including renewable energy, automotive, and technology, to extract high-grade pure minerals from non-traditional water resources. Its innovative approach aims to accelerate the development of clean energy technologies and support the growing lithium market.

Pyran

Grant in 2020
Pyran LLC, based in Madison, Wisconsin, specializes in the development of 1,5-pentanediol, an environmentally friendly compound derived from renewable wood and crop waste resources, such as corn cobs. Founded in 2017, the company serves the chemical industry by providing a sustainable alternative to traditional petroleum-based chemicals. Pyran's diol product is utilized as a raw material in the production of various everyday materials, including paints, coatings, adhesives, biodegradable films, and plastics. By offering renewable five-carbon products, the company enables clients to access higher-performing and cost-effective materials while addressing the challenges posed by diminishing natural resources and climate change.

Alpha-En

Grant in 2020
Alpha-En Corporation is a development stage company based in Yonkers, New York, founded in 1969. The company specializes in the development of innovative technologies for manufacturing high purity lithium metal, a vital component for lightweight and high energy density batteries. Alpha-En focuses on creating battery components and lithium compounds while prioritizing environmentally sustainable practices. The company has pioneered a production process that allows for the manufacture of lithium metal at room temperature using clean technology, minimizing environmental impact. As it seeks to advance next-generation battery technologies, Alpha-En aims to deliver its products in a cost-effective manner, contributing to the growing demand for sustainable energy solutions.

Full Circle Microbes

Grant in 2020
Full Circle Microbes provides a waste disposal service that converts organic waste into fertilizer. The company was founded in 2019 and is headquartered in Hinesburg, Vermont.

Membrion

Grant in 2020
Membrion, Inc., founded in 2016 and based in Seattle, Washington, specializes in the manufacturing and commercialization of advanced membranes that filter molecules, including ions, under a variety of conditions such as heat, acidity, and biological sensitivity. Originating as a spin-out from the University of Washington, Membrion has received funding from multiple organizations, including the National Science Foundation and private investors, which has facilitated the transition from research to commercial production. The company's innovative ion exchange membrane technology is designed for applications in flow batteries, water purification, fuel cells, and pharmaceuticals, offering clients membranes that feature a longer lifespan and reduced costs.

Spira

Grant in 2020
Spira focuses on developing algae-based ingredients designed to replace petroleum and animal-derived compounds, promoting sustainability in various industries. The company specializes in creating food-safe dyes and other industrial ingredients, which are utilized across sectors such as beverages, cosmetics, textiles, and confectionery. By collaborating with a global network of farming partners, Spira aims to manufacture raw materials that contribute to carbon capture and wastewater management. Their efforts not only support the transition to more sustainable materials but also assist in improving the livelihoods of farmers in developing countries. Through its innovative products and services, Spira is committed to enhancing both human and planetary health.

CrossLink Composites

Grant in 2020
CrossLink Composites, founded in 2017 and based in Harriman, Tennessee, specializes in developing proprietary carbon fiber technology tailored for various industrial applications. The company focuses on providing low-cost, high-performance carbon fiber and composites designed for sectors such as cleantech, automotive, wind energy, and civil infrastructure. By emphasizing high-volume industrial applications, CrossLink Composites aims to meet the specific needs of its customers with customized carbon fiber solutions.

Cellulose Sciences International

Grant in 2020
Cellulose Sciences International develops novel methods for utilizing celluloses and lignocellulosic. The headquarters of the company are in Madison, Wisconsin.

Legov Systems Group

Grant in 2020
Legov Systems Group, founded in 2018 and located in Boise, Idaho, specializes in the development of scalable power systems that utilize smart materials to harvest energy. The company focuses on enhancing energy recovery from low-grade waste heat, particularly in industrial settings such as combined heat and power installations, metal manufacturing, chemical processing, and industrial boilers. By improving the efficiency of energy recovery in these facilities, Legov Systems Group enables clients to reduce operational costs, lower energy demands, and enhance sustainability efforts.

Grotthuss

Grant in 2020
Grotthuss is a battery technology company that provides energy storage solutions. The company was headquartered in Happy Valley, Oregon.

Octet Scientific

Grant in 2020
Octet Scientific specializes in the production of advanced organic electrolyte chemicals designed to enhance the efficiency and longevity of zinc-based batteries. The company's innovative OctoLyte products optimize electrolyte chemistry, making them suitable for a range of applications, including backup power, grid storage, portable devices, and mobility solutions. By integrating these products into existing electrolyte systems, Octet Scientific enables its customers to improve battery performance, ultimately leading to more efficient and cost-effective energy storage options.

Li Industries

Grant in 2020
Li Industries is a start-up dedicated to advancing lithium-ion battery recycling technologies. The company focuses on reclaiming materials from end-of-life batteries used in electric vehicles, consumer electronics, and various energy storage systems. By utilizing direct recycling technology, Li Industries specializes in recovering valuable metals such as lithium, cobalt, and nickel, which are essential for battery production. Their innovative electrochemical flow system allows for non-destructive lithiation and optimizes the post-treatment of recovered materials, enhancing the efficiency of the recycling process. Through its efforts, Li Industries aims to minimize environmental waste, lower emissions, and reduce the costs associated with lithium-ion battery manufacturing, thereby promoting a more sustainable supply chain for battery materials.

Antora Energy

Grant in 2020
Antora Energy specializes in providing zero-carbon industrial heat and power solutions for heavy industries, aiming to replace fossil fuels with cleaner alternatives. The company has developed innovative thermal batteries that utilize excess electricity generated from solar and wind sources. These batteries store thermal energy by heating blocks of carbon, which can then be used to produce reliable power and heat. By integrating renewable resources into the electricity grid, Antora enables industries to achieve sustainable and dependable energy solutions while significantly reducing carbon emissions.

XL Batteries

Grant in 2020
XL Batteries develops a technology platform to reduce waste formation. The company was founded in 2019 and is headquartered in Brooklyn, New York.

Green Magic Homes

Grant in 2020
Green Magic Homes, founded in 2016 and based in Aventura, Florida, specializes in biophilic building systems that foster a connection between people and nature. The company focuses on creating eco-friendly construction solutions tailored for environmentally conscious communities and wellness hospitality. Its innovative technology enables the design of spacious and bright interiors that seamlessly integrate with lush vegetation. By emphasizing energy efficiency and sustainability, Green Magic Homes supports clients in their construction projects while enhancing environmental quality and preserving the surrounding ecosystem.

FluxMagic

Grant in 2020
FluxMagic is an electronics company that develops magnetic devices for renewable energy applications. The company was founded in 2019 and is headquartered in Portland, Oregon.

Two Bears Environmental Consulting

Grant in 2020
Two Bears Environmental Consulting, founded in 2015 and based in Anchorage, Alaska, specializes in providing environmental services that assess the impact of climate change on various projects. The company produces climate impact statements that evaluate environmental influences and projected climate scenarios, helping clients understand potential risks. Additionally, Two Bears assists in securing grants from government and organizational sources, and offers unmanned aerial vehicle (UAV) services for drone-based data collection. This combination of services helps ensure regulatory compliance and promotes sustainable practices among businesses.

SunDensity

Grant in 2020
SunDensity has developed a groundbreaking Photonic Smart Coating (PSC™) technology that enables the up and down conversion of the wavelengths in white light (UV to IR) to match the desired band which can solve several in-efficiencies in photonics. By conversion of spectrum, they have developed, and field tested a patent-pending PSC™ that significantly reduces the cost of electricity generated by solar photovoltaics (PV) applications, customizes thermal and optical behavior of architectural glass, and increases the quantum efficiency of optoelectronic instruments.

Microgrid Labs

Grant in 2020
Microgrid Labs, Inc. is a software and consulting company based in Durham, North Carolina, specializing in the development of solutions for microgrids, electric vehicle infrastructure, and solar forecasting. Founded in 2015, the company focuses on planning and modeling for fleet electrification and microgrid projects, offering services that include initial assessments, feasibility studies, and simulation. By providing consulting and software solutions, Microgrid Labs supports clients throughout the implementation and operations phases, helping them design economically viable projects while optimizing energy storage and management systems.

Ecolectro

Grant in 2020
Ecolectro focuses on producing scalable and cost-effective green hydrogen energy solutions. The company develops advanced electrolyzers that utilize patented polymers to create durable and high-performance stacks. Their technology features exceptional membranes and electrodes, enabling the efficient production of pure hydrogen without relying on costly materials such as platinum, iridium, and titanium. Ecolectro's innovative approach aims to enhance the viability of hydrogen as an environmentally friendly energy source, reducing capital costs while potentially extending the lifespan of hydrogen technologies. The company's commitment to research and development allows it to continually push the boundaries of electrolysis technology, making green hydrogen more accessible for various industries.

Transaera

Grant in 2020
Transaera specializes in the development of energy-efficient cooling systems aimed at minimizing energy consumption and greenhouse gas emissions. The company employs an innovative desiccant material that effectively removes moisture from the air prior to the cooling process, enhancing indoor comfort. Its solutions are designed for both residential and commercial applications, providing affordable and environmentally friendly cooling options that improve indoor climate control. By reducing the energy demands typically associated with conventional air conditioning units, Transaera's technologies support greater productivity while also alleviating strain on local grid infrastructure and contributing to a more sustainable global climate.

RenewCO2

Grant in 2020
RenewCO2 is a research company that develops processes for converting CO2 into polymers and chemicals. The company was founded in 2018 and is based in Cranford, New Jersey.

Avium

Grant in 2020
Avium develops fuels and chemicals from CO2, water, and renewable energy. The company was founded in 2017 and is based in Lawrence, Kansas.

XFlow Energy

Grant in 2020
XFlow Energy manufactures vertical-axis wind turbines (VAWTs) that reduce the cost of wind energy generation. XFlow Energy’s unique rotor design eliminates the structural failure modes common to VAWTs while simultaneously maintaining high efficiency and low manufacturing costs. XFlow also offers engineering consulting, prototyping, and testing services for renewable energy systems.

Pearl Street Technologies

Grant in 2020
Pearl Street Technologies specializes in the development of the SUGAR platform, a comprehensive tool for power grid planning that enhances the reliability and sustainability of electrical networks. Inspired by advanced computer chip design methodologies, SUGAR offers modeling, optimization, and design capabilities tailored for grid operators, utilities, and project developers. The platform automates the creation of base case planning models and effectively addresses complex contingencies and extreme grid conditions. By streamlining project workflows and reducing network upgrade costs, SUGAR facilitates the seamless integration of renewable energy sources, thereby supporting stakeholders in their efforts to build a more resilient power infrastructure.

Valgotech

Grant in 2020
Valgotech, founded in 2018 and located in Fishers, Indiana, focuses on advanced materials and energy storage solutions, particularly in the realm of renewable energy systems. The company develops innovative hybrid composites utilizing micro and nanomaterials to enhance the energy density and cycling performance of lithium-ion batteries. By improving these aspects, Valgotech aims to deliver high-performance energy storage options that remain affordable for clients, thereby advancing the efficiency and accessibility of clean energy technologies.

HelioBioSys

Grant in 2020
HelioBioSys is a biotechnology company that specializes in marine cyanobacteria. The company uses marine cyanobacteria that grow on air, seawater, and sunlight. They produce a variety of complex biopolymers. HelioBioSys has developed cost-effective ways to harvest and process them into concentrated polysaccharides and hydrogels. These sustainably-derived biomaterials have applications in cosmetics, sunscreens and bioplastics.

SurgePower Materials

Grant in 2020
SurgePower Materials is a green technology company that produces high purity graphene, a specialty carbon based nanomaterial, from a renewable resource, by using cost effective and eco-friendly process. SurgePower Materials is well positioned to develop and commercialize manufacturing of specialty carbon based nanomaterials, and redefine the graphene market, and be a leader in the global graphene market. With their dedicated and experienced team consisting of inventors, business directors, project managers and researchers, the best of SurgePower Materials is yet to come.

NextGen Battery Technologies

Grant in 2019
NextGen Battery Technologies focuses on the development of innovative electric vehicle batteries utilizing proprietary solid-state electrolyte and cobalt-free cathode technology. Their HC series of composite electrolytes effectively merges the advantageous characteristics of ceramic and polymeric materials. This battery technology is designed to facilitate the large-scale adoption of electric vehicles by providing a high-performance energy solution that maintains high ionic conductivity across a range of temperatures. The synthesis of these batteries employs scalable processes, allowing car manufacturers to easily integrate them as drop-in replacements for existing cathode materials.

Noon Energy

Grant in 2019
Noon Energy is a company based in Palo Alto, California, focused on developing innovative flow battery technology for long-duration energy storage. Founded in 2018, the company aims to make intermittent renewable energy sources, such as solar and wind, more reliable by providing on-demand power. Its rechargeable battery utilizes low-cost energy storage media that separates energy and power capacity, enabling efficient long-duration storage without the need for mining precious metals. This approach supports the scaling of renewable electricity supplies, thereby reducing reliance on fossil fuels, minimizing pollution, and lowering emissions.

Skip Technology

Grant in 2019
Skip Technology develops a battery for large-scale electrical storage. The company was founded in 2018 by Dr. Ben Brown and Dr. Brennan Gantner and is based in Portland, Oregon.

Darcy Solutions

Grant in 2019
Darcy Solutions, Inc., founded in 2018 and based in Excelsior, Minnesota, specializes in the development of environmentally friendly and energy-efficient buildings. The company employs a patent-pending method for ground source heat pumps, which are recognized as some of the most effective heating and cooling technologies available. This innovative approach not only reduces installation costs by fifty percent but also enables the application of this technology in locations that were previously deemed unsuitable.
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