MassVentures

MassVentures is a venture capital firm based in Waltham, Massachusetts, established in 1978 as a quasi-public corporation by the Massachusetts Legislature. The firm focuses on providing seed and early-stage funding to high-growth startups, facilitating their transition from concept to commercialization. MassVentures invests primarily in sectors such as information technology, healthcare, cybersecurity, e-commerce, mobile, manufacturing, and robotics. With a governance structure that includes an independent Board of Directors and management by experienced venture capitalists, MassVentures leverages the state's entrepreneurial spirit and innovation centers to support the Massachusetts innovation economy. The firm also offers accelerator programs to further assist emerging companies in their growth journey.

Charles Hipwood

Founder President and CEO

Charlie Hipwood

President and CEO

Vinit Nijhawan

Managing Director

Mike O'Malley

Senior Investment Team

Nicholas A. Pappas

Vice President

Stacy Swider

Vice President, Investments

Priya Yadav

Vice President, Investments

Past deals in Renewables

Electrified Thermal Solutions

Venture Round in 2024
Electrified Thermal Solutions, founded in 2021 and based in Medford, Massachusetts, develops innovative energy storage technology. The company converts intermittent renewable electricity into constant heat using low-cost conductive ceramic blocks, enabling industrial sectors to replace fossil fuels with zero-carbon heat.

Adden Energy

Series A in 2024
Adden Energy specializes in developing advanced lithium-metal, solid-state battery technologies. With proven rapid charge capabilities (as low as 3 minutes) and exceptional cycle life (over 10,000 cycles), the company aims to accelerate electric vehicle adoption globally, contributing significantly to a cleaner energy future.

AeroShield

Seed Round in 2024
AeroShield specializes in the production of super-insulating, nanoporous glass materials designed for energy-efficient windows. Utilizing silica aerogel, AeroShield's products offer optical clarity akin to traditional glass while delivering superior insulation, making them 50% more effective than conventional double-pane windows. This innovative approach not only enhances thermal comfort but also significantly improves energy performance, allowing window manufacturers to meet sustainability and compliance objectives. Additionally, the payback period for AeroShield's materials is up to five times faster than that of similarly performing windows, making them a compelling choice for the modern market.

Osmoses

Grant in 2024
Osmoses specializes in decarbonizing gas separations using innovative membrane technology. Its solution efficiently purifies gas molecules, reducing energy consumption and capital requirements while integrating seamlessly into existing industrial processes. This enables energy producers to achieve cleaner and more sustainable operations.

Electrified Thermal Solutions

Grant in 2024
Electrified Thermal Solutions, founded in 2021 and based in Medford, Massachusetts, develops innovative energy storage technology. The company converts intermittent renewable electricity into constant heat using low-cost conductive ceramic blocks, enabling industrial sectors to replace fossil fuels with zero-carbon heat.

Emvolon

Grant in 2024
Emvolon is a technology company focused on creating a platform for distributed chemical production that utilizes wasted resources. The company's innovative approach involves converting wasted natural gas from flare sites into usable chemicals, which can serve a variety of industrial applications or be transformed into carbon-negative fuels. Emvolon reimagines traditional diesel engines as miniature chemical reactors, allowing for efficient and effective production without the need for large refineries or chemical plants. This process facilitates the establishment of economically viable small-scale production facilities by leveraging the advantages of mass production alongside economies of scale, ultimately providing communities with the essential raw materials they require.

Active Surfaces

Grant in 2023
Active Surfaces, a Massachusetts-based company, specializes in commercializing ultra-thin-film solar technology developed at MIT. Its core business involves creating flexible, lightweight solar panels that can be seamlessly integrated into everyday materials and surfaces, revolutionizing the conventional energy sector. The company's innovative manufacturing approach significantly reduces production costs, making solar power more accessible and affordable. This technology presents a transformational opportunity for semiconductor and electronics manufacturing, driving down costs for both module production and installation. By enabling virtually any surface to generate power, Active Surfaces aims to accelerate the transition to a cleaner, more sustainable future.

River Otter Renewables

Grant in 2023
River Otter Renewables is a recycling comany that produced biocrude oil from plant and waste as well as sewage and plastic waste.

Blaze Power

Grant in 2023
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

Convertible Note in 2023
AeroShield specializes in the production of super-insulating, nanoporous glass materials designed for energy-efficient windows. Utilizing silica aerogel, AeroShield's products offer optical clarity akin to traditional glass while delivering superior insulation, making them 50% more effective than conventional double-pane windows. This innovative approach not only enhances thermal comfort but also significantly improves energy performance, allowing window manufacturers to meet sustainability and compliance objectives. Additionally, the payback period for AeroShield's materials is up to five times faster than that of similarly performing windows, making them a compelling choice for the modern market.

Emvolon

Seed Round in 2023
Emvolon is a technology company focused on creating a platform for distributed chemical production that utilizes wasted resources. The company's innovative approach involves converting wasted natural gas from flare sites into usable chemicals, which can serve a variety of industrial applications or be transformed into carbon-negative fuels. Emvolon reimagines traditional diesel engines as miniature chemical reactors, allowing for efficient and effective production without the need for large refineries or chemical plants. This process facilitates the establishment of economically viable small-scale production facilities by leveraging the advantages of mass production alongside economies of scale, ultimately providing communities with the essential raw materials they require.

florrent

Pre Seed Round in 2023
Florrent develops bio-based materials and high-energy-density supercapacitors derived from agricultural waste streams to address bottlenecks in decarbonization and electrification of transportation and buildings. Its technology aims to improve power quality and reliability while offering lower upfront and lifetime costs than conventional batteries, enabling commercial, industrial, and grid operators to enhance performance and support economic inclusion in underrepresented communities.

Fourier

Grant in 2023
Fourier is a thermal management solutions ranging from high power density electronics to renewable energy to space applications.

Osmoses

Grant in 2023
Osmoses specializes in decarbonizing gas separations using innovative membrane technology. Its solution efficiently purifies gas molecules, reducing energy consumption and capital requirements while integrating seamlessly into existing industrial processes. This enables energy producers to achieve cleaner and more sustainable operations.

Loop CO2

Grant in 2023
Loop CO2 specializes in transforming carbon dioxide into valuable products like cosmetic oils, adhesives, and thermoplastic elastomers. This innovative process enables clients to minimize their environmental impact by adopting eco-friendly alternatives.

Electrified Thermal Solutions

Grant in 2023
Electrified Thermal Solutions, founded in 2021 and based in Medford, Massachusetts, develops innovative energy storage technology. The company converts intermittent renewable electricity into constant heat using low-cost conductive ceramic blocks, enabling industrial sectors to replace fossil fuels with zero-carbon heat.

AeroShield

Grant in 2023
AeroShield specializes in the production of super-insulating, nanoporous glass materials designed for energy-efficient windows. Utilizing silica aerogel, AeroShield's products offer optical clarity akin to traditional glass while delivering superior insulation, making them 50% more effective than conventional double-pane windows. This innovative approach not only enhances thermal comfort but also significantly improves energy performance, allowing window manufacturers to meet sustainability and compliance objectives. Additionally, the payback period for AeroShield's materials is up to five times faster than that of similarly performing windows, making them a compelling choice for the modern market.

Eden

Seed Round in 2023
Eden is focused on developing a sustainable platform for natural resource recovery, aiming to create a carbon-neutral future. The company has introduced a novel method known as Pulsed Electrical Well Stimulation (PEWS), which is a patent-pending technology designed to replace traditional hydraulic fracturing. This innovative approach eliminates the need for water injection and addresses the logistical challenges and environmental risks associated with conventional fracking methods. By utilizing high-voltage electricity and proprietary modeling techniques, Eden enhances rock permeability with precision, facilitating effective resource extraction across various geological settings. This technology not only reduces costs but also minimizes the negative impacts typically associated with hydraulic fracturing, positioning Eden as a leader in environmentally responsible resource recovery.

florrent

Grant in 2023
Florrent develops bio-based materials and high-energy-density supercapacitors derived from agricultural waste streams to address bottlenecks in decarbonization and electrification of transportation and buildings. Its technology aims to improve power quality and reliability while offering lower upfront and lifetime costs than conventional batteries, enabling commercial, industrial, and grid operators to enhance performance and support economic inclusion in underrepresented communities.

Aloft Systems

Grant in 2022
Aloft Systems specializes in maritime transportation through the development of innovative wind propulsion technology. This technology aims to reduce emissions and save fuel on existing vessels by utilizing direct wind propulsion. The company offers self-contained wind propulsion units that can be integrated into various ships, along with software that operates these units autonomously. This enables shipping companies to transport cargo efficiently along point-to-point routes, enhancing delivery reliability while significantly cutting emissions and eliminating fuel costs. Aloft Systems' commitment to zero-emission propulsion makes its solutions accessible to a wide range of vessels, positioning it as a leader in sustainable maritime transportation.

Carbix

Grant in 2022
Carbix develops weathering technologies that convert CO2 emissions into building materials. It uses a bioreactor to capture CO2 from industrial plant flue gas and combines it with mineral inputs and energy from renewable sources or energy-from-waste to accelerate sequestration and form carbonates that serve as raw materials for construction products and other industrial applications.

Arrakis Materials

Grant in 2022
Arrakis Materials converts COâ‚‚ into carbon-negative minerals, enabling carbon storage and utilization.

AeroShield

Grant in 2022
AeroShield specializes in the production of super-insulating, nanoporous glass materials designed for energy-efficient windows. Utilizing silica aerogel, AeroShield's products offer optical clarity akin to traditional glass while delivering superior insulation, making them 50% more effective than conventional double-pane windows. This innovative approach not only enhances thermal comfort but also significantly improves energy performance, allowing window manufacturers to meet sustainability and compliance objectives. Additionally, the payback period for AeroShield's materials is up to five times faster than that of similarly performing windows, making them a compelling choice for the modern market.

AeroShield

Seed Round in 2022
AeroShield specializes in the production of super-insulating, nanoporous glass materials designed for energy-efficient windows. Utilizing silica aerogel, AeroShield's products offer optical clarity akin to traditional glass while delivering superior insulation, making them 50% more effective than conventional double-pane windows. This innovative approach not only enhances thermal comfort but also significantly improves energy performance, allowing window manufacturers to meet sustainability and compliance objectives. Additionally, the payback period for AeroShield's materials is up to five times faster than that of similarly performing windows, making them a compelling choice for the modern market.

Eden

Grant in 2022
Eden is focused on developing a sustainable platform for natural resource recovery, aiming to create a carbon-neutral future. The company has introduced a novel method known as Pulsed Electrical Well Stimulation (PEWS), which is a patent-pending technology designed to replace traditional hydraulic fracturing. This innovative approach eliminates the need for water injection and addresses the logistical challenges and environmental risks associated with conventional fracking methods. By utilizing high-voltage electricity and proprietary modeling techniques, Eden enhances rock permeability with precision, facilitating effective resource extraction across various geological settings. This technology not only reduces costs but also minimizes the negative impacts typically associated with hydraulic fracturing, positioning Eden as a leader in environmentally responsible resource recovery.

Volta Energy

Grant in 2022
Volta Energy developing technology to decarbonize energy generation.

Silartek

Grant in 2022
SilarTek is a technology company established in 2020 and located in Leominster, Massachusetts. The company specializes in developing innovative solar silicon technology aimed at making solar panels more affordable and accessible to a broader audience. SilarTek's unique approach involves utilizing molten salt electrolysis combined with an advanced molten salt composition, which enables the production of low-cost solar-grade silicon. This technology is designed to benefit both consumers and businesses by providing an efficient solution for solar panel manufacturing.

Zero Homes

Grant in 2022
Zero Homes operates a home electrification marketplace that enables homeowners to plan, purchase, and schedule electrification projects. The platform offers electrification guidance through virtual home energy assessments, decarbonization roadmaps tailored to each residence, and scoped, priced projects designed to deliver all-electric upgrades without on-site visits. By combining planning tools, transparent pricing, and scheduling capabilities in a single digital platform, Zero Homes helps homeowners access retrofits that improve comfort, reduce emissions, and simplify the transition to electric systems.

Adden Energy

Seed Round in 2022
Adden Energy specializes in developing advanced lithium-metal, solid-state battery technologies. With proven rapid charge capabilities (as low as 3 minutes) and exceptional cycle life (over 10,000 cycles), the company aims to accelerate electric vehicle adoption globally, contributing significantly to a cleaner energy future.

Bootbox Labs

Grant in 2021
Bootbox Labs is a manufacturing company that provides refrigerant-free and climate-neutral heat pumps for the HVAC industry.

Powerhouse

Grant in 2021
PowerHouse is a company dedicated to combating climate change by providing innovative solar energy solutions. It specializes in developing a solar energy system that overcomes the limitations of traditional deployment methods, offering versatile and aesthetically pleasing options for residential, commercial, and off-grid applications. The company's platform aims to expand the reach of renewable energy, making it more accessible and desirable for clients.

GenH

Grant in 2021
GenH is a Boston-based company founded in 2017 that specializes in advanced hydroelectric technologies for urban environments. The company focuses on developing modular hydropower systems that enhance and optimize energy generation at non-powered dams and canal heads. By providing resilient and deployable hydropower solutions, GenH enables clients to electrify these sites without the need for significant construction or investment in fixed infrastructure. This innovative approach aims to help clients achieve economic parity with traditional fossil fuel systems, thereby promoting sustainable energy generation while minimizing reliance on subsidies.

Transaera

Grant in 2021
Transaera is a company focused on developing advanced air conditioning solutions that prioritize energy efficiency and environmental sustainability. By utilizing a novel desiccant material, Transaera's cooling systems effectively remove moisture from the air prior to the cooling process, significantly reducing energy consumption and greenhouse gas emissions. These innovative systems are designed for both residential and commercial applications, providing affordable and environmentally friendly cooling options that enhance indoor comfort while minimizing the impact on global climate and local grid infrastructure. Through its technology, Transaera aims to improve productivity and comfort in indoor environments while contributing to a more sustainable future.

Ascend Elements

Series B in 2021
Ascend Elements specializes in manufacturing advanced battery materials using recycled lithium-ion batteries. It employs hydroprocess recycling and direct recycling methods to create new cathode materials from old ones, contributing to a more sustainable electric vehicle industry.

Cala Systems

Grant in 2020
Altus Thermal, founded in 2019 and based in Boston, Massachusetts, focuses on transforming thermal energy solutions for residential settings. The company aims to enhance efficiency, comfort, and user experience while providing benefits to the electrical grid. Altus Thermal develops energy technology designed to electrify residential heating, cooling, and hot water systems. By maximizing performance and facilitating better integration with renewable energy sources and other distributed energy resources, the company enables homeowners to electrify their living spaces in an efficient and cost-effective manner.

Castalune

Grant in 2020
Castalune is a predictive software prototype for distributed renewable energy resource optimization.

FLxDER

Grant in 2020
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.

SYSO Technologies

Grant in 2020
SYSO Technologies specializes in end-to-end management technology and services for renewable energy and storage assets. Its cloud-based platform employs artificial intelligence to optimize control and management of photovoltaic, wind, and storage assets, enhancing revenue generation, cost reduction, and reliability.

Ithaca Clean Energy

Grant in 2020
Ithaca Clean Energy is a company that develops a renewable energy platform designed to enhance the efficiency of energy generation. Utilizing artificial intelligence-driven data analytics, Ithaca aims to improve connectivity and interactivity among stakeholders in the energy sector, including investors, developers, and operators. By providing tools that facilitate better-informed decision-making, Ithaca Clean Energy supports its clients in optimizing their operations and investments in the renewable energy landscape.

Sol Clarity

Grant in 2020
Sol Clarity specializes in enhancing solar panel efficiency through its self-cleaning technology. It develops transparent Electrodynamic Screen overlays that automatically remove dust from solar panels, improving energy yield without the need for water washing.

Lydian

Grant in 2020
Lydian aims to accelerate the decarbonization of the chemical industry by electrifying the chemical production process. Founded in 2021 by Branko Zugic, Lydian is headquartered in

MSW Power

Grant in 2020
MSW Power Corporation specializes in manufacturing innovative waste management solutions. Founded in 2012 and headquartered in Acton, Massachusetts, the company offers a range of products designed to convert various types of waste, including paper, wood, plastic, agricultural waste, and food, into usable energy in the form of electricity and heat. Key products include the BWEC GEM, an integrated system for waste conversion, and HydroPactor, which reduces the weight of waste by removing moisture. Additionally, MSW Power features a solid waste destruction system that employs mechanical and thermal processes to eliminate moisture from solid waste. The company is committed to providing environmentally beneficial and economically viable solutions that address energy and environmental challenges.

Transaera

Grant in 2018
Transaera is a company focused on developing advanced air conditioning solutions that prioritize energy efficiency and environmental sustainability. By utilizing a novel desiccant material, Transaera's cooling systems effectively remove moisture from the air prior to the cooling process, significantly reducing energy consumption and greenhouse gas emissions. These innovative systems are designed for both residential and commercial applications, providing affordable and environmentally friendly cooling options that enhance indoor comfort while minimizing the impact on global climate and local grid infrastructure. Through its technology, Transaera aims to improve productivity and comfort in indoor environments while contributing to a more sustainable future.

Dynamo Micropower

Grant in 2018
Dynamo Micropower Corporation is a technology company focused on developing innovative fuel-flexible gas turbines tailored for small distributed generation in the oil and gas industry. Founded in 2011 and headquartered in Somerville, Massachusetts, the company offers advanced power solutions, including its PowerCore system, which provides reliable, grid-quality power while operating on local unrefined gas. This capability allows customers to significantly reduce energy costs, with savings of up to 80%, and enhances equipment performance by up to 25%. Dynamo also provides custom solutions and a flameless turboheater known as Infernocore, addressing the specific needs of oilfield applications. The company distributes its products through a network of distributors and offers support services via service partners, having established a solid customer base that includes notable clients such as Kinder Morgan and Caterpillar.

Ascend Elements

Grant in 2018
Ascend Elements specializes in manufacturing advanced battery materials using recycled lithium-ion batteries. It employs hydroprocess recycling and direct recycling methods to create new cathode materials from old ones, contributing to a more sustainable electric vehicle industry.

ZwitterCo

Grant in 2018
ZwitterCo specializes in advanced membrane solutions for the treatment of highly impaired wastewater, enabling the reuse and recycling of water resources in industrial applications. The company's innovative reverse osmosis and nanofiltration technologies address the challenges of treating historically unfilterable streams by preventing fouling caused by organic molecules. ZwitterCo's membranes are chlorine-tolerant, back-washable, and resistant to irreversible fouling, which enhances their longevity and performance. By transforming wastewater from a liability into a valuable resource, ZwitterCo helps clients manage their water treatment needs more economically and sustainably, reducing chemical demands and improving operational efficiency.

Medley Thermal

Grant in 2018
Medley Thermal develops software that optimally manages switching between energy sources in industrial boiler systems. Its solution adds an electric boiler alongside existing ones, using dispatching software to seamlessly manage fuel switching, enabling industries to reduce power costs and emissions.

Xilectric

Grant in 2017
Xilectric is a company that specializes in developing advanced energy and environmental technologies, particularly in the area of lithium-ion battery systems. It focuses on enhancing the abuse tolerance of these batteries, enabling them to withstand high voltage, high temperatures, and rapid charging processes. Xilectric also produces a new class of low-cost rechargeable batteries based on nickel-iron technology, which minimizes electrolyte degradation and enhances operational performance in extreme weather conditions. This innovation provides electric vehicle manufacturers with durable and reliable battery solutions, ensuring improved safety and longevity for their products.

Heila Technologies

Grant in 2016
Heila Technologies, Inc. is a Massachusetts-based company that specializes in the development of a platform designed to integrate and optimize distributed energy resources (DERs) such as solar arrays and batteries. The Heila Platform employs a decentralized optimization system that simplifies the management of these resources, enabling the creation of self-managing microgrids. By transforming individual nodes within the energy system into intelligent agents, the platform facilitates autonomous coordination and optimization of power assets. This approach helps to reduce complexity and costs while enhancing resilience and efficiency in energy operations. Heila Technologies serves a diverse clientele, including partners, utility representatives, developers, energy users, and public officials. Originally founded as Heila Technologies LLC, the company was incorporated in 2015 and has its roots in MIT.

MTPV

Grant in 2016
MTPV Power Corporation, established in 2003 and based in Austin, Texas, specializes in innovative clean energy solutions. The company focuses on developing Micron-gap ThermalPhotoVoltaics (MTPV) technology, originally researched at MIT and Draper Laboratory before being brought under MTPV Power's umbrella. Their core product is semiconductor chips designed to convert waste heat from various sources into usable electricity, benefiting industrial businesses by enhancing productivity while reducing energy costs.

Wright Electric

Grant in 2016
Wright Electric Inc. is a manufacturer of commercial electric airplanes, focusing on reducing costs and emissions in the aviation industry. Founded in 2016 and headquartered in Los Angeles, California, the company utilizes unique propulsion technology to create aircraft that eliminate emissions without relying on offsets. This innovation aims to make zero-emissions flight as economically viable as traditional fossil-fueled aviation, marking a significant step towards the electrification of the aerospace sector and fostering a sustainable future for air travel.

MTPV

Grant in 2016
MTPV Power Corporation, established in 2003 and based in Austin, Texas, specializes in innovative clean energy solutions. The company focuses on developing Micron-gap ThermalPhotoVoltaics (MTPV) technology, originally researched at MIT and Draper Laboratory before being brought under MTPV Power's umbrella. Their core product is semiconductor chips designed to convert waste heat from various sources into usable electricity, benefiting industrial businesses by enhancing productivity while reducing energy costs.

Evaptainers

Grant in 2015
Evaptainers develops electricity-free mobile refrigeration units that utilize evaporative cooling technology. Founded in 2014, the company aims to improve produce shelf-life along the supply chain, particularly in developing countries.

Dynamo Micropower

Grant in 2015
Dynamo Micropower Corporation is a technology company focused on developing innovative fuel-flexible gas turbines tailored for small distributed generation in the oil and gas industry. Founded in 2011 and headquartered in Somerville, Massachusetts, the company offers advanced power solutions, including its PowerCore system, which provides reliable, grid-quality power while operating on local unrefined gas. This capability allows customers to significantly reduce energy costs, with savings of up to 80%, and enhances equipment performance by up to 25%. Dynamo also provides custom solutions and a flameless turboheater known as Infernocore, addressing the specific needs of oilfield applications. The company distributes its products through a network of distributors and offers support services via service partners, having established a solid customer base that includes notable clients such as Kinder Morgan and Caterpillar.

EverVest

Grant in 2014
EverVest is a provider of financial risk analysis and cash flow modeling software tailored for renewable energy investors. The company offers a web-based platform that assists banks, investors, and developers in evaluating and structuring financing for new renewable energy assets. Additionally, EverVest's software includes enterprise risk management features, enabling portfolio managers to effectively assess risks and facilitate sustainable growth within the renewable energy sector.

SachSiSolar

Grant in 2013
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.

Vecarius

Grant in 2013
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.

SES

Grant in 2012
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.

Thermeleon

Grant in 2012
Thermeleon specializes in energy-efficient greenhouse solutions. Their core product is a next-generation screening system that passively cools and heats greenhouses. This system integrates thermal energy storage, absorbing excess heat during the day and releasing it at night, significantly reducing both gas costs and CO2 emissions.

Takachar

Grant in 2012
Takachar is a company focused on transforming agricultural waste into valuable products, particularly eco-friendly cooking fuel. Operating primarily in Kenya, it has developed low-cost technologies that enable the conversion of unmanaged agricultural residues into charcoal, a non-toxic and affordable energy source for low-income households. Over the past three years, Takachar has established or assisted seven locally run waste-to-charcoal enterprises, some of which have achieved operational profitability. The company has successfully created approximately 100 jobs and sold 50 tons of its eco-char product. By utilizing oxygen-lean torrefaction reactors, Takachar helps farmers reduce waste through recycling, allowing them to generate additional income while preventing open burning of agricultural residues. The company aims to demonstrate the financial sustainability of these enterprises as a foundation for expanding its franchise network in the future.

Solablock

Grant in 2012
SolaBlock is an innovative company that specializes in solar-clad masonry and tile wall systems, which integrate renewable energy production into the entire building envelope. By utilizing a combination of conventional concrete blocks and tiles embedded with permanent solar photovoltaic elements, SolaBlock offers a unique solution for both urban and remote locations. Its technology not only enhances energy efficiency but also provides durable features such as weather resistance, theft-proof designs, and vandal resistance. This enables building owners to take advantage of affordable building-integrated photovoltaic panels, thereby economically benefiting from renewable energy while contributing to sustainable construction practices.

Ze-gen

Series B in 2009
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.

Thermoenergy

Venture Round in 2007
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

Series A in 2007
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

Series A in 2006
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.
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