MassVentures

Adden Energy is a company focused on the development of lithium-metal, solid-state batteries that offer significant advantages for electric vehicles. Their innovative technology is capable of achieving charge times as short as three minutes and maintaining capacity for over 10,000 cycles in lab-scale cells. By advancing solid-state battery technology, Adden Energy aims to facilitate the widespread adoption of electric vehicles globally, thereby playing a crucial role in promoting a cleaner and more sustainable future.

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.

Osmoses engages in decarbonizing gas separations to eliminate one gigaton of carbon emissions per year.

River Otter Renewables is a recycling comany that produced biocrude oil from plant and waste as well as sewage and plastic waste.

MacroCycle is developing a technology to curb the usage of fossil fuel derived plastic through a circular, sustainable and zero-carbon plastic upcycling process. The company's proprietary process based on the synthesis of cyclic macromolecules enables us to produce virgin-grade recycled PET from plastic waste at lower energy use than traditional processes.

Active Surfaces is commercializing MIT-developed ultra-thin-film solar technology. The company seeks to revolutionize the conventional energy sector by making solar power widespread and seamlessly integrating it into everyday materials. Its innovative manufacturing approach significantly reduces production expenses, presenting a transformational opportunity for semiconductor and electronics manufacturing.

Blaze Power operates as a lithium-ion battery materials manufacturer. It innovates and commercializes iron-based cathode materials to enable mass-market electrification in transportation and energy storage. The company is driven to industrialize these cathodes in purpose-built inflation reduction act-compliant facilities.

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.

Florrent is a bio-based materials and energy storage company focused on addressing key challenges in global decarbonization and the electrification of transportation and buildings. It specializes in the development of energy-density ultracapacitors made from sustainable hemp biomass sourced from a network of BIPOC farmers. These ultracapacitors enhance the stability of electrical grids and facilitate the integration of renewable energy sources, electric vehicles, and net-zero buildings. By enabling communities to locally generate, store, and utilize renewable power, Florrent contributes to the transition towards a resilient, renewable, and equitable energy economy.

Fourier is a thermal management solutions ranging from high power density electronics to renewable energy to space applications.

Osmoses engages in decarbonizing gas separations to eliminate one gigaton of carbon emissions per year.

Loop CO2 is a company focused on developing innovative technology that transforms carbon dioxide into essential products, contributing to a sustainable future. By converting CO2 into items such as cosmetic oils, adhesives, and thermoplastic elastomers, Loop CO2 enables its customers to minimize their environmental impact through the use of eco-friendly alternatives. The company's solutions aim to address climate challenges while promoting the utilization of carbon emissions in a productive manner.

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.

Eden is a leader in sustainable natural resource recovery. They break rocks with electricity to maximize subsurface permeability. Eden believes that a more sustainable approach to natural resource recovery is critical to creating a carbon-neutral future. By using high-voltage electricity and proprietary modeling and reservoir characterization techniques, they can achieve precise fracture permeability enhancement, while preventing the high-water consumption and environmental risks associated with traditional hydraulic fracturing operations. With backing from public and private institutions, Eden’s next-generation rock permeability enhancement technology is being demonstrated in multiple geologies across the world. They are working with industry leaders in geothermal energy, geologic hydrogen, carbon storage, and mining to redefine how we recover Earth’s natural resources. To learn more about Eden and their groundbreaking technology, visit edengeopower.com

Carbix is a company focused on converting atmospheric carbon dioxide into carbonates, which serve as raw materials for various industrial products. Utilizing innovative bioreactor technology, Carbix captures CO2 from industrial flue gas and rapidly transforms it, along with mineral inputs, into usable raw materials within hours. The company employs advanced weathering techniques powered by renewable energy or energy-from-waste, enhancing the sequestration of CO2 emissions. This process not only helps mitigate climate change by reducing atmospheric carbon but also enables businesses to source industrial materials sustainably.

Arrakis Materials converts CO₂ into carbon-negative minerals, enabling carbon storage and utilization.

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.

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.

Eden is a leader in sustainable natural resource recovery. They break rocks with electricity to maximize subsurface permeability. Eden believes that a more sustainable approach to natural resource recovery is critical to creating a carbon-neutral future. By using high-voltage electricity and proprietary modeling and reservoir characterization techniques, they can achieve precise fracture permeability enhancement, while preventing the high-water consumption and environmental risks associated with traditional hydraulic fracturing operations. With backing from public and private institutions, Eden’s next-generation rock permeability enhancement technology is being demonstrated in multiple geologies across the world. They are working with industry leaders in geothermal energy, geologic hydrogen, carbon storage, and mining to redefine how we recover Earth’s natural resources. To learn more about Eden and their groundbreaking technology, visit edengeopower.com

Volta Energy developing technology to decarbonize energy generation.

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.

Adden Energy is a company focused on the development of lithium-metal, solid-state batteries that offer significant advantages for electric vehicles. Their innovative technology is capable of achieving charge times as short as three minutes and maintaining capacity for over 10,000 cycles in lab-scale cells. By advancing solid-state battery technology, Adden Energy aims to facilitate the widespread adoption of electric vehicles globally, thereby playing a crucial role in promoting a cleaner and more sustainable future.

PowerHouse focuses on providing solar energy to fight against climate change through novel deployment solutions for renewables.

GenH is a Boston-based company established in 2017 that specializes in advanced hydroelectric technology. The firm focuses on developing resilient hydropower systems that can be deployed in urban environments. By offering a modular hydropower solution, GenH aims to optimize and streamline energy generation processes at non-powered dams and canal heads. This innovative approach allows for the electrification of these sites without the need for significant construction or investment in fixed infrastructure. As a result, clients can achieve economic parity with traditional fossil fuel systems, facilitating a transition towards more sustainable energy sources.

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.

FLxDER creates a prototype of its cloud-based software to optimize electric fleet vehicle charging so as to reduce electric grid impacts and costs, and coordinate operation with other distributed energy resources.

Castalune is a predictive software prototype for distributed renewable energy resource optimization.

SYSO Technologies specializes in renewable energy and storage management technology and services. The company has developed a cloud-based platform aimed at enhancing the performance of renewable energy assets. By integrating artificial intelligence with a product-agnostic server, the platform enables asset owners to transform passive renewable generators, such as photovoltaics and wind power, into active energy producers. This approach allows asset owners to maximize the value of their investments by increasing revenue, reducing operational costs, and improving the reliability of their energy systems. SYSO Technologies focuses on providing comprehensive solutions that support the effective management of renewable energy and storage assets.

Ithaca Clean Energy develops a renewable energy platform that leverages artificial intelligence-driven data analytics to enhance the efficiency of energy generation. The company's technology facilitates greater connectivity and interaction among stakeholders in the energy sector, including investors, developers, and operators. By providing insights and analytics, Ithaca aims to support these parties in making better-informed and optimized decisions regarding energy investments and operations.

Lydian Labs manufactures renewable energy equipment from industrial plants, landfills or directly from air.

Sol Clarity specializes in the development and production of self-cleaning solar. It provides transparent Electrodynamic Screen (EDS) as overlays for solar panels that automatically remove dust and improve the energy yield/output power of solar panels without the need to wash the panels with water.

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.

Ascend Elements specializes in the production of advanced battery materials by reclaiming valuable elements from spent lithium-ion batteries. The company employs hydroprocess recycling and direct recycling methods, which deconstruct old cathode materials at the atomic level to generate new cathode materials. This innovative approach not only enhances the efficiency of recycling processes but also enables clients to maximize their returns on assets, ultimately supporting the production of economically viable and low-cost battery materials.

Medley Thermal specializes in the development of software and systems designed to optimize the management of energy sources for steam supply. The company focuses on creating thermal electric systems that incorporate an electric boiler alongside existing boiler systems. By utilizing advanced dispatching software, Medley Thermal's solutions enable seamless fuel switching between boilers, ensuring an uninterrupted supply of steam. This approach not only helps industries reduce reliance on more expensive and emissions-intensive fuels but also facilitates a transition to cleaner steam energy, contributing to lower operational costs and enhanced environmental sustainability.

ZwitterCo specializes in advanced membrane solutions for the treatment of highly impaired wastewater, focusing on the development of reverse osmosis and nanofiltration technologies. These innovations enable the effective reuse and recycling of water resources by addressing challenges such as fouling and chemical demands. ZwitterCo's membranes are designed to treat historically unfilterable streams, allowing customers to transform waste into a valuable resource. With features such as chlorine tolerance and resistance to irreversible fouling, the company's technology supports steady performance and durability, making wastewater treatment economically viable for industrial applications.

Xilectric specializes in the development of energy and environmental technologies, particularly in the field of lithium-ion battery innovation. The company manufactures rechargeable batteries designed to enhance abuse tolerance, enabling them to withstand high voltage, elevated temperatures, and rapid charging. Xilectric also offers a novel class of low-cost rechargeable batteries based on nickel-iron technology, which minimizes electrolyte degradation and ensures reliable performance in extreme weather conditions. This advancement provides electric vehicle manufacturers with durable and dependable battery solutions, addressing the growing demand for efficient energy storage in the automotive sector.

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.

MTPV Power Corporation is a clean energy company that focuses on innovations in Micron-gap ThermalPhotoVoltaics technology (MTPV). MTPV technology began development at MIT and Draper Laboratory before moving to the labs of MTPV Power Corporation. It was founded in 2003 and headquartered in Austin, Texas.

Wright Electric Inc. is a manufacturer of commercial electric airplanes, focusing on reducing costs and emissions in the aviation industry. Established in 2016 and headquartered in Los Angeles, California, the company utilizes innovative propulsion technology to produce aircraft that eliminate emissions without requiring offsets. This advancement not only promotes zero-emissions flight but also aims to make the operational costs comparable to those of traditional fossil-fueled fleets, thereby facilitating the transition to a more sustainable aerospace sector. Wright Electric is positioned to play a significant role in the electrification of aviation, marking a transformative shift in the industry.

Cambrian Innovation is developing a portfolio of environmental solutions that help industrial, agricultural, and government customers save money while better managing and re-using their resources. Fueled initially by a 2006 NASA grant to explore how recent advances in bioelectricity can enhance water management in space, Cambrian has developed, scaled, and validated a pipeline of solutions that can recover resources from wastewater, eliminate energy input for wastewater treatment, radically reduce the cost of nitrate nitrogen treatment, and help agricultural operations monitoring their inputs more easily and efficiently.

Dynamo Micropower Corporation specializes in developing fuel-flexible gas turbines tailored for small distributed generation applications, primarily in the oil and gas sector. Founded in 2011 and based in Somerville, Massachusetts, the company offers innovative products such as PowerCore, designed for continuous operation in challenging environments, and Infernocore, a flameless turboheater. Dynamo's solutions are engineered to operate using local unrefined gas, significantly reducing energy costs by up to 80% while enhancing power quality by up to 25%, thereby improving the performance of equipment. The company provides a fully packaged, plug-and-play power solution that utilizes flare gas to deliver grid-quality electricity. Dynamo Micropower markets its products through a network of distributors and supports them with a network of service partners. The company has successfully deployed its turbines with notable clients, including Kinder Morgan and Caterpillar.

EverVest specializes in providing financial risk analysis and cash flow modeling software tailored for renewable energy investors. Its web-based platform aids banks, investors, and developers in evaluating and structuring financing for new renewable energy assets. Additionally, the software offers enterprise risk management capabilities that assist portfolio managers in making informed decisions for sustainable growth in the renewable energy market. Through its innovative solutions, EverVest plays a vital role in enhancing the financial decision-making process within the renewable energy sector.

Vecarius is an energy efficiency in mass markets with broad societal impact, particularly in markets involving energy-intensive mobile or portable applications. They offer power management systems, thermal management systems, power electronics, advanced heat exchangers, and waste heat recovery.

SachSiSolar develops technology to reduce the costs of solar panels. The company provides manufacturers with an inexpensive retrofit for their production lines to increase the efficiency of solar panels. The technology will drive down the cost of high-efficiency photovoltaics and enable high-technology manufacturing in Massachusetts.

Thermeleon offers a greenhouse screening system with the added capability of passively cooling and heating the greenhouse. It is a next-generation screen system with integrated thermal energy storage for horticulture. During the day, it will absorb the excess energy, which will be released at night when there is high energy demand. As a result, both the gas costs and CO2 emissions are reduced significantly.

Takachar is focused on creating a network of waste management enterprises in Kenya that convert agricultural residues into eco-friendly charcoal, providing an affordable cooking fuel for low-income households. The company has developed low-cost technologies that can be locally manufactured and have been successfully tested in Kenya over the past three years. Since its inception, Takachar has assisted in establishing seven local waste-to-charcoal enterprises, some of which have achieved operational profitability. To date, Takachar has created approximately 100 jobs and sold 50 tons of eco-char. The company aims to demonstrate the long-term financial sustainability of these enterprises, with the intention of developing a franchise network in the future. Additionally, Takachar employs oxygen-lean torrefaction reactors to transform biomass into commercially viable products, helping farmers prevent the open burning of agricultural waste while providing them with opportunities to generate extra income through value-added chemicals.

SolidEnergy Systems Corp. develops and manufactures rechargeable lithium metal batteries primarily for applications in drones, wearables, smartphones, and electric vehicles. Founded in 2012 and based in Woburn, Massachusetts, the company focuses on producing high-performance lithium metal batteries and supplying essential materials, such as anodes and electrolytes, to major lithium-ion cell manufacturers. These materials can be integrated into existing manufacturing processes, allowing for scalability without significant infrastructure investments. SolidEnergy's pilot-scale production caters to prototype demonstrations and specialized aerospace markets, while its future growth is aimed at mainstream sectors like consumer electronics and electric vehicles. Additionally, the company is involved in developing AI-powered safety algorithms and recycling solutions, positioning itself as an integrated battery manufacturer with a commitment to innovation and sustainability.

SolaBlock is an entirely new approach to solar electric buildings, bringing the entire building envelope into renewable energy production.

ThermoEnergy Corporation, founded in 1988 and headquartered in Worcester, Massachusetts, focuses on the commercialization of innovative wastewater treatment systems and carbon-reducing power generation technologies. The company utilizes its Controlled Atmosphere Separation Technology (CAST) platform to offer a range of solutions, including systems for treating brackish and natural water sources, recovering wastewater for reuse, and ensuring compliance with regulatory mandates. Key products include Turbo CAST, a heat recuperation technology, and Mobile CAST, a self-contained wastewater processing system. Additionally, ThermoEnergy develops processes for ammonia recovery, renewable energy generation from waste-activated sludge, and enhanced biogas production from animal waste. The company is also known for its patented pressurized oxycombustion technology, which enables the conversion of fossil fuels and biomass into electricity while minimizing air emissions and capturing carbon dioxide. ThermoEnergy serves various industries, including metal finishing, petrochemical, food processing, and municipal wastewater applications, positioning itself as a leader in sustainable water treatment and clean energy solutions.

Ze-gen is a renewable energy company that utilizes proprietary gasification technology with ordinary waste streams to generate clean, sustainable, low-cost synthesis gas for multiple applications. Founded in 2004, Ze-gen has used innovative science, processes, a team, and industrial support in order to organize a group that believes that there is a possibility to efficiently repurpose the carbon content found in everyday waste and use it in various forms of renewable energy.

Ze-gen is a renewable energy company that utilizes proprietary gasification technology with ordinary waste streams to generate clean, sustainable, low-cost synthesis gas for multiple applications. Founded in 2004, Ze-gen has used innovative science, processes, a team, and industrial support in order to organize a group that believes that there is a possibility to efficiently repurpose the carbon content found in everyday waste and use it in various forms of renewable energy.

TerraTherm is a worldwide leader in the development and implementation of in situ thermal remediation of organic contaminants.