Union Square Ventures
Union Square Ventures (USV), established in 2003 and headquartered in New York, is a venture capital firm that invests in early-stage, growth, and late-stage internet companies. It focuses on the applications layer of the web, internet services, and mobile sector, seeking companies that create large networks and have defensible network effects. USV invests in various industries, including media, marketing, financial services, fintech, climate tech, and healthcare, with a preference for IT-enabled services. It typically invests $1 million initially, with the potential to invest up to $20 million in a single company, and aims for ownership levels of 15% to 20%. USV actively engages with entrepreneurs and often acts as a lead investor. It primarily invests in companies based in New York, San Francisco, London, Berlin, and other locations in between.
Past deals in Renewables
Presto
Seed Round in 2025
Presto is a software platform to power magical charging experiences for fleets, mobility providers, and businesses.We believe that access to reliable and affordable charging is the key to unlocking mass electrification and fighting climate change.
Cactos
Venture Round in 2025
Cactos is a developer of advanced smart energy storage systems aimed at enhancing the efficient utilization of renewable energy on a global scale. Its distributed energy storage solutions provide local backup power, ensuring critical power supply during outages while promoting the electrification of transportation. This approach also supports the end-of-life reuse of electric vehicle batteries, contributing to power grid stability. Cactos focuses on serving building owners and tenants across various sectors, including manufacturing, hospitality, and retail, thereby securing vital power supplies and fostering a more sustainable energy future.
Bolt.Earth
Series A in 2025
Bolt.Earth is a leading provider of electric vehicle (EV) charging infrastructure solutions in India, operating over 20,000 charging points and focusing on promoting cleaner mobility in emerging markets. The company offers a comprehensive platform that enables users to locate the nearest charging stations conveniently. In addition, Bolt.Earth's technology facilitates over-the-air updates, allowing fleet operators, vehicle owners, and automotive businesses to integrate smart and sustainable services. By developing a robust network and advanced operating systems, Bolt.Earth is committed to enhancing the adoption of electric vehicles and contributing to a greener future.
Radiant
Series C in 2024
Radiant is a clean energy startup based in Los Angeles, California, that specializes in the development of portable nuclear microreactors. Founded in 2019, the company aims to provide an alternative to fossil fuels for both military and commercial applications. Its flagship product, the Kaleidos microreactor, is designed to fit within a shipping container, allowing for transportation by air, ship, and road. This innovative microreactor serves as a zero-emissions power source, making it particularly suitable for remote locations and critical applications where traditional diesel generators are typically used.
Glow Labs
Venture Round in 2024
Solar farms on the Glow network are paid with GLW tokens for electricity output and stablecoins for carbon credits. According to the business, their incentive model prioritizes incentives for solar farms with the greatest environmental benefit, focusing on places where clean energy can best balance high carbon emissions.
David Energy
Series A in 2024
David Energy is an innovative energy company that specializes in transforming electricity consumption, management, and trading through advanced technology. It develops an energy management platform designed for customers with behind-the-meter (BTM) assets, enabling them to select optimal energy solutions tailored to their specific building and consumption profiles. By integrating software and hardware solutions, David Energy assists businesses in designing, installing, and financing various BTM assets while leveraging sophisticated machine learning algorithms. This approach not only empowers consumers to reduce their energy bills but also enhances their control over energy usage. Through smart energy management and the integration of renewable energy sources, David Energy is committed to promoting a sustainable and efficient energy future.
UNIGRID
Series A in 2024
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.
Zanskar
Series B in 2024
Zanskar is a geothermal exploration and technology company focused on accelerating the discovery and development of geothermal energy resources. The company utilizes a predictive platform informed by extensive data, which includes subsurface characterization technology and advanced sensing techniques. By integrating artificial intelligence and big data, Zanskar enhances the exploration process and helps clients identify previously unknown geothermal resources, ultimately reducing the risks associated with such endeavors. Through its innovative approach, Zanskar aims to contribute to the advancement of geothermal energy as a sustainable resource.
Blixt
Seed Round in 2024
Blixt is a manufacturer specializing in semiconductor-based circuit breakers and household fuses designed to support smart metering and smart grid solutions. Founded in February 2018, the company utilizes a solid-state technology platform that includes advanced circuit breakers and next-generation battery system architecture. This innovative approach offers a more reliable, flexible, and efficient electricity infrastructure, enabling energy service providers and households to manage power with software-defined capabilities. Blixt's products facilitate real-time control of currents and voltages, enhancing the performance and integration of all-electric technology. The company has secured a total funding of two million euros, with BayWa re Energy Ventures as a key investor in its seed financing round.
Transmutex
Series A in 2024
Transmutex is a Swiss company founded in 2019 that specializes in innovative nuclear technology aimed at significantly reducing existing nuclear waste. The company leverages advanced techniques, including particle accelerators, to transmute long-lived nuclear waste into less harmful materials while simultaneously generating carbon-free energy. This energy can be reintegrated into the power grid or utilized for green hydrogen production. Comprising a diverse team of physicists, computer scientists, and environmentalists, Transmutex is pioneering a new approach to nuclear energy that offers scalable, carbon-free solutions without the typical challenges associated with conventional nuclear power plants.
Ostrom
Series A in 2023
Ostrom is a company focused on facilitating the transition to renewable energy by enhancing accessibility and inclusivity in the market. It operates a digital platform designed to help consumers switch to green energy and manage their electricity consumption effectively. The platform features automated meter readings for tracking usage, flexible monthly billing with transparent pricing, and storage for contract details. Additionally, it offers multilingual support, allowing a diverse range of customers to engage with its services. Ostrom aims to empower consumers to reduce their electricity consumption and adopt sustainable energy solutions without the constraints of long-term commitments.
Lydian
Seed Round in 2023
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
Leap
Venture Round in 2023
Leap is a marketplace for Distributed Energy Resources to participate in the energy market. It allows every connected device to help balance the grid, and get paid for it and access wholesale markets through a single API and help build the flexible, renewable grid of the future. Leap aims to make global energy markets accessible to anyone, starting with demand response and expanding into generation and ancillary services. Leap was founded by Thomas Folker and Remco Van Den Elzen.
Odyssey
Series A in 2023
Odyssey Energy Solutions, founded in 2017 and based in Boulder, Colorado, offers a web-based data platform designed to streamline the development and deployment of mini-grids in emerging markets. The platform enables project developers to effectively manage and analyze mini-grid data through various software tools and data analytics. By facilitating communication and connection among developers, financiers, vendors, and governmental and donor organizations, Odyssey enhances collaboration within the mini-grid sector, ultimately supporting sustainable energy solutions in underserved regions.
Noya
Series A in 2023
Noya is a company focused on combating climate change through innovative carbon capture technology. By retrofitting existing industrial cooling towers, Noya integrates a non-toxic chemical blend that efficiently captures carbon dioxide without requiring physical alterations to the equipment. This approach allows industries to reduce their carbon footprints while simultaneously generating a valuable resource, as the captured CO2 is sold to companies that utilize it as a raw material. Noya's mission is to accelerate the global transition towards a carbon-negative future, positioning itself as a key player in the development of sustainable solutions for environmental challenges.
Ostrom
Series A in 2022
Ostrom is a company focused on facilitating the transition to renewable energy by enhancing accessibility and inclusivity in the market. It operates a digital platform designed to help consumers switch to green energy and manage their electricity consumption effectively. The platform features automated meter readings for tracking usage, flexible monthly billing with transparent pricing, and storage for contract details. Additionally, it offers multilingual support, allowing a diverse range of customers to engage with its services. Ostrom aims to empower consumers to reduce their electricity consumption and adopt sustainable energy solutions without the constraints of long-term commitments.
Molten Industries
Seed Round in 2022
Molten Industries is a clean technology company focused on decarbonizing the hydrogen market. It has developed innovative technology that produces hydrogen in a cost-effective and environmentally friendly manner. By providing an emissions-free method of hydrogen generation, Molten Industries enables chemical and heavy industries to significantly reduce their carbon footprint. The company's commitment to sustainable practices positions it as a key player in the transition towards cleaner energy solutions.
Zanskar
Series A in 2022
Zanskar is a geothermal exploration and technology company focused on accelerating the discovery and development of geothermal energy resources. The company utilizes a predictive platform informed by extensive data, which includes subsurface characterization technology and advanced sensing techniques. By integrating artificial intelligence and big data, Zanskar enhances the exploration process and helps clients identify previously unknown geothermal resources, ultimately reducing the risks associated with such endeavors. Through its innovative approach, Zanskar aims to contribute to the advancement of geothermal energy as a sustainable resource.
XFuel
Venture Round in 2022
XFuel is a company focused on producing sustainable and net-zero advanced fuels for the road, marine, and aviation sectors. Founded in 2010 and headquartered in Dublin, Ireland, with additional operations in Palma de Mallorca, Spain, XFuel has developed innovative technology for the efficient conversion of biomass waste into low-carbon fuels. This process results in a clean, drop-in fuel that can be utilized by distributors and consumers globally, offering a cost-effective alternative to traditional fossil fuels. XFuel's production methods lead to up to 85% fewer greenhouse gas emissions compared to conventional fuel production, with a clear pathway towards achieving carbon-neutral and carbon-negative fuel solutions.
Shift EV
Series A in 2022
Shift EV is an electric mobility technology startup focused on advancing the adoption of electric vehicles in commercial fleets. The company specializes in the development of electric vehicle batteries and employs proprietary electro-fitting technology to convert conventional vehicles into electric-run models. Shift EV aims to support fleet owners, operators, and financiers by providing critical insights into electric vehicle performance, including operational cost savings, electricity consumption, emissions reduction, available battery range, and mileage. By facilitating the transition to electric-driven fleets, Shift EV contributes to environmental sustainability and the conservation of natural resources, particularly in emerging markets.
Brilliant Planet
Series A in 2022
Brilliant Planet is a company focused on utilizing algae as a sustainable solution for carbon sequestration at a gigaton scale. It employs an innovative process that facilitates the growth of microalgae in open-air pond systems situated on coastal desert land, without the need for fresh water. This method not only contributes to the health of oceans and air but also addresses the increasing demand for protein. By harnessing natural processes, Brilliant Planet offers an effective and affordable way to permanently and quantifiably remove carbon from the atmosphere, positioning itself as a leader in environmental sustainability and climate change mitigation.
David Energy
Series A in 2022
David Energy is an innovative energy company that specializes in transforming electricity consumption, management, and trading through advanced technology. It develops an energy management platform designed for customers with behind-the-meter (BTM) assets, enabling them to select optimal energy solutions tailored to their specific building and consumption profiles. By integrating software and hardware solutions, David Energy assists businesses in designing, installing, and financing various BTM assets while leveraging sophisticated machine learning algorithms. This approach not only empowers consumers to reduce their energy bills but also enhances their control over energy usage. Through smart energy management and the integration of renewable energy sources, David Energy is committed to promoting a sustainable and efficient energy future.
Radiant
Series A in 2022
Radiant is a clean energy startup based in Los Angeles, California, that specializes in the development of portable nuclear microreactors. Founded in 2019, the company aims to provide an alternative to fossil fuels for both military and commercial applications. Its flagship product, the Kaleidos microreactor, is designed to fit within a shipping container, allowing for transportation by air, ship, and road. This innovative microreactor serves as a zero-emissions power source, making it particularly suitable for remote locations and critical applications where traditional diesel generators are typically used.
Leap
Series B in 2021
Leap is a marketplace for Distributed Energy Resources to participate in the energy market. It allows every connected device to help balance the grid, and get paid for it and access wholesale markets through a single API and help build the flexible, renewable grid of the future. Leap aims to make global energy markets accessible to anyone, starting with demand response and expanding into generation and ancillary services. Leap was founded by Thomas Folker and Remco Van Den Elzen.
Bolt.Earth
Series A in 2021
Bolt.Earth is a leading provider of electric vehicle (EV) charging infrastructure solutions in India, operating over 20,000 charging points and focusing on promoting cleaner mobility in emerging markets. The company offers a comprehensive platform that enables users to locate the nearest charging stations conveniently. In addition, Bolt.Earth's technology facilitates over-the-air updates, allowing fleet operators, vehicle owners, and automotive businesses to integrate smart and sustainable services. By developing a robust network and advanced operating systems, Bolt.Earth is committed to enhancing the adoption of electric vehicles and contributing to a greener future.
Transmutex
Series A in 2021
Transmutex is a Swiss company founded in 2019 that specializes in innovative nuclear technology aimed at significantly reducing existing nuclear waste. The company leverages advanced techniques, including particle accelerators, to transmute long-lived nuclear waste into less harmful materials while simultaneously generating carbon-free energy. This energy can be reintegrated into the power grid or utilized for green hydrogen production. Comprising a diverse team of physicists, computer scientists, and environmentalists, Transmutex is pioneering a new approach to nuclear energy that offers scalable, carbon-free solutions without the typical challenges associated with conventional nuclear power plants.
Remora
Seed Round in 2021
Remora is a company that has developed an innovative emission-controlling device aimed at reducing carbon emissions from semi-trucks. This device, which is installed between the cab and trailer, captures at least 80% of the carbon dioxide emitted directly from the tailpipe. Utilizing a solid sorbent that selectively binds with carbon dioxide molecules, the device regenerates using exhaust heat, ensuring efficient operation without clogging. By capturing and selling the collected CO2 to end-users for long-term storage, Remora enables companies to generate new revenue streams while fulfilling their climate commitments. The revenue from CO2 sales is shared with customers, allowing the device to pay for itself within a few years.
NCX
Seed Round in 2021
NCX operates a forest carbon marketplace that connects landowners with carbon credit buyers, facilitating access to natural capital markets for all sizes of landowners. The company utilizes advanced technologies, including remote sensing and artificial intelligence, to measure forest carbon on an annual basis across the American landscape. Through meticulous data practices, NCX generates high-integrity carbon credits that support both institutionally managed and family-owned forests. By enabling participation in carbon markets, NCX contributes to real climate action and empowers clients to achieve their sustainability goals.
David Energy
Series A in 2020
David Energy is an innovative energy company that specializes in transforming electricity consumption, management, and trading through advanced technology. It develops an energy management platform designed for customers with behind-the-meter (BTM) assets, enabling them to select optimal energy solutions tailored to their specific building and consumption profiles. By integrating software and hardware solutions, David Energy assists businesses in designing, installing, and financing various BTM assets while leveraging sophisticated machine learning algorithms. This approach not only empowers consumers to reduce their energy bills but also enhances their control over energy usage. Through smart energy management and the integration of renewable energy sources, David Energy is committed to promoting a sustainable and efficient energy future.
Leap
Series A in 2020
Leap is a marketplace for Distributed Energy Resources to participate in the energy market. It allows every connected device to help balance the grid, and get paid for it and access wholesale markets through a single API and help build the flexible, renewable grid of the future. Leap aims to make global energy markets accessible to anyone, starting with demand response and expanding into generation and ancillary services. Leap was founded by Thomas Folker and Remco Van Den Elzen.
Volteras
Volteras is a developer of software designed for connected electric vehicles, focusing on the integration of data from various energy devices. By collecting, standardizing, and optimizing this data, Volteras provides businesses with valuable insights into the performance of electric vehicles in real-world conditions. Their platform, Volteras Connect, allows users to access and analyze data from electric vehicles, chargers, heat pumps, home batteries, and solar inverters. This enables organizations to generate new revenue streams, reduce operational costs, and develop innovative business models. Volteras aims to serve as a crucial link between electric vehicles and the diverse range of systems they interact with, including energy suppliers and mapping software.
Mombak
Mombak is a carbon removal company dedicated to reforesting the Amazon through the establishment of native, biodiverse forests. The company employs a team of experts in science, technology, forestry, and carbon markets to implement projects that effectively capture carbon from the atmosphere. Mombak's initiatives are designed to ensure high additionality and durability while minimizing leakage, thereby enhancing biodiversity and supporting socioeconomic development in local communities. Its focus on high-integrity carbon removal aligns with the company's mission to create sustainable environmental solutions.
Bolt.Earth
Bolt.Earth is a leading provider of electric vehicle (EV) charging infrastructure solutions in India, operating over 20,000 charging points and focusing on promoting cleaner mobility in emerging markets. The company offers a comprehensive platform that enables users to locate the nearest charging stations conveniently. In addition, Bolt.Earth's technology facilitates over-the-air updates, allowing fleet operators, vehicle owners, and automotive businesses to integrate smart and sustainable services. By developing a robust network and advanced operating systems, Bolt.Earth is committed to enhancing the adoption of electric vehicles and contributing to a greener future.
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