The energy storage industry in the US is evolving rapidly as it addresses the growing need for reliable and renewable energy solutions. Companies in this space—ranging from startups innovating in battery technologies to established firms in grid management—offer systems that store energy from different sources, enhancing grid stability and resilience. Recent advancements in battery efficiency and storage duration are crucial as more renewable energy sources are integrated into the grid. With federal incentives and increasing investments, the sector is poised for growth, targeting not only commercial applications but also residential energy savings, making clean energy more accessible.


This list highlights 19 standout investors engaged in the energy storage sector in the US. Dominating the scene are venture capital firms like MassVentures and Climate Capital, alongside significant contributions from major players like Morgan Stanley and Goldman Sachs. These investors are located across the country, from the East Coast in New York to the West Coast in California, collectively managing varied deal sizes and strategies. In 2024 alone, they executed over 1,005 investments—showing a keen interest in bolstering energy storage technologies as part of a greener future.


Top 19 Energy Storage Investors in the US


1. U.S. Department of Energy (DOE)

  • Website: energy.gov
  • Type: Corporate
  • Headquarters: Washington, D.C., District Of Columbia, United States (USA)
  • Founded year: 1977
  • Headcount: 10001+
  • Number of deals in 2024: 597
  • LinkedIn: u-s--department-of-energy

The U.S. Department of Energy (DOE) is a public entity established in 1977, responsible for overseeing national energy policy, energy production, and nuclear power research. It serves various stakeholders, including government entities and the public, by providing guidance on energy efficiency, funding opportunities, and conducting research to address energy challenges. The DOE has been actively involved in the energy storage sector, exemplified by its significant transactions such as a $249 million grant to A123 Systems in 2009, a $147 million grant to Form Energy in 2024, and a recent grant for the RedFlow Technologies project aimed at developing a 34.4 MWh long-duration energy storage microgrid in California. These investments reflect the DOE's strategic focus on enhancing energy storage capabilities as part of its broader mission to promote sustainable energy solutions.


2. Y Combinator

  • Website: ycombinator.com
  • Type: Venture Capital
  • Headquarters: San Francisco, California, United States (USA)
  • Founded year: 2005
  • Headcount: 51-200
  • Number of deals in 2024: 802
  • LinkedIn: y-combinator

Y Combinator is a prominent startup accelerator and venture capital firm based in San Francisco, California, founded in 2005. It provides funding and mentorship to early-stage technology companies, helping entrepreneurs launch and grow their businesses through structured programs, resources like the Startup School, and co-founder matching services. Y Combinator has successfully launched over 4,000 startups, making it a key player in the technology startup ecosystem. Notably, Y Combinator has invested in companies relevant to the energy storage sector, such as Posh, which raised $3.8 million in Seed funding for electric vehicle battery recycling solutions, and Moxion Power, which has raised funds in Pre-Seed rounds for energy-related innovations. These investments highlight Y Combinator's engagement in the energy storage industry, despite its broader focus on technology startups.


3. Breakthrough Energy


Breakthrough Energy is a not-for-profit organization founded in 2015, based in Kirkland, Washington, dedicated to accelerating the transition to a net-zero economy. They support innovative technologies and advocate for policies that promote clean energy solutions. Breakthrough Energy Ventures, the venture capital arm of the organization, has been actively investing in companies that are pioneering advancements in energy storage. Notable transactions include a significant investment in ESS Inc., where they participated in a $30 million Series C funding round aimed at expanding the manufacturing of iron flow battery technology, and a $250 million post-IPO equity investment. Additionally, they have invested in Form Energy, contributing to multiple funding rounds, including a $450 million Series E and a $405 million Series F, both of which focus on developing new energy storage technologies. These investments highlight Breakthrough Energy's strategic focus on supporting the energy storage industry as part of their broader mission to combat climate change.


4. Elemental Impact


Elemental Impact is a not-for-profit organization based in Honolulu, Hawaii, founded in 2012. Their mission is to scale climate technologies with a strong emphasis on community impact. They provide funding opportunities, community engagement strategies, and educational resources to support climate technology companies and local governments in deploying sustainable solutions. Notably, Elemental Impact has been involved in several transactions within the energy storage sector, including investments in Stem, which raised $27 million in a Series B round, and Amber Kinetics, which secured funding in a Seed round. They also participated in funding for Ambri and Blue Planet Energy Systems LLC, both of which are focused on energy storage solutions. These transactions highlight Elemental Impact's active role in fostering advancements in energy storage technologies.


5. Deep Tech Fund (an Alumni Ventures Fund)

  • Website: av.vc
  • Type: Venture Capital
  • Headquarters: Manchester, New Hampshire, United States (USA)
  • Founded year: 2023
  • Headcount: 51-200
  • Number of deals in 2024: 258
  • LinkedIn: deep-tech-fund-av-focused-fund

Deep Tech Fund (an Alumni Ventures Fund) is a venture capital firm based in Manchester, New Hampshire, founded in 2023. It provides accredited investors and institutions with access to professionally-managed, diversified venture portfolios, leveraging a network of over 10,000 investors to connect them with high-quality investment opportunities in the startup ecosystem. Notably, the fund has been involved in significant transactions within the energy storage sector, including a Series A investment in ION Storage Systems, which raised funds in both 2023 and 2024. Additionally, they participated in a Series A round for RedoxBlox, which raised $30 million in late 2024. These transactions highlight the fund's active engagement in the energy storage industry, making it a relevant player in this space.


6. IFC - International Finance Corporation

  • Website: ifc.org
  • Type: Venture Capital
  • Headquarters: Washington, D.C., District Of Columbia, United States (USA)
  • Founded year: 1956
  • Headcount: 1001-5000
  • Number of deals in 2024: 107
  • LinkedIn: ifclinkedin

The International Finance Corporation (IFC) is a not-for-profit organization established in 1956, focused on private sector development in emerging markets. Based in Washington, D.C., IFC provides investment, advisory, and asset management services to businesses and financial institutions, facilitating access to capital and expertise to foster economic growth. IFC operates in over 100 countries, addressing poverty challenges and promoting sustainable development. Among its notable transactions, IFC has invested in companies like Microvast, which raised $50 million in a Series A round in 2011, focusing on battery technology essential for energy storage. Additionally, IFC has engaged with major energy players such as Engie and Iberdrola, both of which are involved in renewable energy projects that may incorporate energy storage solutions. Their investment in Masdar, which raised $159 million in debt financing in 2024, further emphasizes their commitment to sustainable energy initiatives.


7. Sosv

  • Website: sosv.com
  • Type: Venture Capital
  • Headquarters: United States (USA)
  • Founded year: 1995
  • Headcount: 51-200
  • Number of deals in 2024: 170
  • LinkedIn: sosv

Sosv is a venture capital firm founded in 1995, specializing in funding and supporting deep tech startups through its development programs. With a global reach, Sosv connects innovative companies with investors, providing not only capital but also resources to help startups grow and succeed. Notably, Sosv has invested in VoltStorage, a Munich-based greentech company focused on developing new battery solutions and Redox Flow technology. The firm participated in several funding rounds for VoltStorage, including a Series B round in July 2021 where they raised over $5.9 million, and earlier rounds in 2018 and 2017, demonstrating a consistent interest in the energy storage sector. This involvement highlights Sosv's commitment to advancing technologies that contribute to climate solutions, including energy storage.


8. Plug and Play Tech Center


Plug and Play Tech Center is an innovation hub and venture capital firm based in Sunnyvale, California, founded in 2006. They connect startups with corporations to foster growth and innovation, offering various programs including accelerator initiatives and investment opportunities. In 2024, they have made 253 investments across multiple sectors, including technology and energy. Notably, they have invested in companies like Geli, which focuses on energy management and storage solutions, and GBatteries, which specializes in battery technology. These transactions highlight their engagement in the energy storage industry, showcasing their role in supporting innovative solutions in this field.


9. MassVentures

  • Website: mass-ventures.com
  • Type: Venture Capital
  • Headquarters: Waltham, Massachusetts, United States (USA)
  • Founded year: 1978
  • Headcount: 1-10
  • Number of deals in 2024: 28
  • LinkedIn: massventures

MassVentures is a venture studio based in Waltham, Massachusetts, founded in 1978. The firm focuses on supporting early-stage companies in Massachusetts, particularly those engaged in deep tech innovation. They provide a variety of funding options, including venture capital and grants, along with business guidance and accelerator programs. In 2024, MassVentures has been particularly active, with 28 investments, including significant funding rounds for energy storage-related companies. For instance, they led a $14.9 million Series A investment in Adden Energy, which is involved in energy storage solutions. Additionally, they participated in a $2.1 million Pre-Seed round for florrent, a company working on advanced materials for cylindrical cells, which are crucial for energy storage applications. These transactions highlight MassVentures' commitment to fostering innovation in the energy storage sector.


10. Kkr

  • Website: kkr.com
  • Type: Private Equity
  • Headquarters: New York, New York, United States (USA)
  • Founded year: 1976
  • Headcount: 1001-5000
  • Number of deals in 2024: 74
  • LinkedIn: kkr

KKR & Co. Inc. is a prominent investment firm based in New York, specializing in private equity, credit, infrastructure, and real estate. Founded in 1976, KKR provides asset management solutions to institutional investors and individual clients, helping them navigate complex investment landscapes and achieve strong financial returns. In recent years, KKR has made significant investments in the energy sector, particularly in energy storage. For instance, they raised $200 million for Powin Energy in debt financing, which is focused on energy storage solutions. Additionally, KKR invested $450 million in Hero Future Energies, supporting its expansion into battery storage technologies as part of a broader renewable energy strategy. They also provided a $300 million credit facility to Origis Energy for the development of solar and storage projects, showcasing their commitment to advancing energy storage solutions. These transactions illustrate KKR's active role in the energy storage industry, alongside their diverse investment portfolio.


11. Goldman Sachs

  • Website: goldmansachs.com
  • Type: Private Equity
  • Headquarters: New York, New York, United States (USA)
  • Founded year: 1998
  • Headcount: 10001+
  • Number of deals in 2024: 59
  • LinkedIn: goldman-sachs

Goldman Sachs is a prominent investment bank and financial services firm based in New York, New York, founded in 1998. The firm provides a wide range of services including investment banking, asset management, and wealth management, catering to a diverse clientele that includes corporations, financial institutions, and individuals. In recent years, Goldman Sachs has been actively involved in the energy sector, participating in significant transactions that underscore their interest in energy storage and renewable energy. Notably, they facilitated Northvolt's $1.2 billion convertible note in August 2023 and a $2.75 billion venture round in June 2021, both of which are critical for advancing battery technology and energy storage solutions. Additionally, their involvement in ENGIE North America's $1 billion debt financing in February 2024 and Iberdrola's $935 million post-IPO debt raise in July 2023 further illustrates their commitment to supporting companies that are integral to the energy transition and storage landscape.


12. Chevron

  • Website: chevron.com
  • Type: Corporate
  • Headquarters: Houston, Texas, United States (USA)
  • Founded year: 1999
  • Headcount: 10001+
  • Number of deals in 2024: 16
  • LinkedIn: chevron

Chevron Corporation is an energy company specializing in oil and natural gas exploration, production, and distribution. Founded in 1999 and based in Houston, Texas, Chevron provides a range of products including transportation fuels, lubricants, and petrochemicals. In addition to its core business, Chevron is investing in renewable energy solutions and carbon capture technologies. Notably, Chevron has participated in significant funding rounds for energy storage companies, including Natron Energy, a sodium-ion battery maker, and Malta, which focuses on innovative energy storage systems. In 2020, Chevron contributed to Natron Energy's Series D financing, which aimed to enhance the commercialization of their battery technology. Furthermore, Chevron was involved in Malta's financing rounds, supporting the deployment of their storage systems globally. These investments reflect Chevron's commitment to sustainable practices and its strategic interest in the energy storage sector, catering to the evolving energy demands of businesses and consumers.


13. Los Angeles Cleantech Incubator


The Los Angeles Cleantech Incubator (LACI) is a not-for-profit organization founded in 2011, dedicated to fostering an inclusive green economy by supporting cleantech startups through various programs, including business acceleration and funding opportunities. LACI operates primarily in the cleantech sector, focusing on sustainable technologies and practices. Notably, LACI has been involved in several transactions relevant to the energy storage industry, including investments in BioZen Batteries, which focuses on battery technology, and Ashipa Electric, which is likely involved in electric solutions that may include energy storage components. These investments highlight LACI's commitment to advancing energy storage technologies as part of its broader mission to promote sustainable innovation.


14. Energy Impact Partners


Energy Impact Partners is a New York-based venture capital firm founded in 2015, dedicated to investing in the energy sector with a strong emphasis on sustainable energy solutions. The firm collaborates with entrepreneurs and corporate partners to foster innovation in clean energy technologies, providing both capital and strategic guidance to its portfolio companies. Notably, Energy Impact Partners has been involved in several significant transactions within the energy storage domain, including multiple funding rounds for Form Energy, which raised substantial amounts in Series E, F, and earlier rounds, totaling over $405 million in 2024 alone. Additionally, they participated in a funding round for Powin Energy, an energy storage company, showcasing their commitment to advancing energy storage technologies. Through these investments, Energy Impact Partners plays a crucial role in supporting the development and deployment of energy storage solutions that are vital for the transition to a sustainable energy future.


15. Climate Capital

  • Website: climatecapital.co
  • Type: Venture Capital
  • Headquarters: San Francisco, California, United States (USA)
  • Founded year: 2015
  • Headcount: 1-10
  • Number of deals in 2024: 17
  • LinkedIn: climatecap

Climate Capital is a venture capital firm based in San Francisco, California, founded in 2015. The firm specializes in supporting early-stage climate tech companies, providing funding and resources to entrepreneurs focused on emissions reduction and climate adaptation. Climate Capital emphasizes community building and access to a network of investors and industry experts to help founders scale their businesses effectively. Notably, they have invested in several companies relevant to the energy storage sector, including Moment Energy, which raised $15 million in Series A funding, and Inlyte Energy, a grid battery developer that secured $8 million in seed funding with Climate Capital's participation. These transactions highlight Climate Capital's commitment to advancing energy storage technologies as part of their broader climate tech investment strategy.


16. Morgan Stanley

  • Website: morganstanley.com
  • Type: Venture Capital
  • Headquarters: New York, New York, United States (USA)
  • Founded year: 1986
  • Headcount: 10001+
  • Number of deals in 2024: 79
  • LinkedIn: morgan-stanley

Morgan Stanley is a prominent investment bank and financial services firm founded in 1986, headquartered in New York, New York. The firm offers a wide range of services, including wealth management, investment banking, and capital markets, catering to individuals, families, corporations, and governments. With a global presence and a workforce exceeding 10,000, Morgan Stanley leverages its expertise to provide tailored financial solutions. In the context of energy storage, Morgan Stanley has been involved in several notable transactions, including the acquisition of EnerSys, a leader in stored energy solutions, and significant debt financing for Intersect Power, which includes a $2.6 billion commitment for a solar and energy storage portfolio. This portfolio aims to develop 1.4 GWh of storage capacity alongside solar projects, highlighting Morgan Stanley's active role in the energy storage industry.


17. Intel Capital

  • Website: intelcapital.com
  • Type: Venture Capital
  • Headquarters: Santa Clara, California, United States (USA)
  • Founded year: 1991
  • Headcount: 11-50
  • Number of deals in 2024: 23
  • LinkedIn: intelcapital

Intel Capital is a venture capital firm based in Santa Clara, California, founded in 1991. The firm specializes in investing in early-stage technology companies, with a focus on areas such as AI, cloud computing, and semiconductor technologies. In addition to these sectors, Intel Capital has made significant investments in the energy storage industry. For instance, they invested in Prieto Battery, a company developing advanced 3D lithium-ion battery technology, which is crucial for energy storage solutions. They also participated in funding rounds for Viridity Energy, a company that focuses on energy management and storage solutions. Other relevant transactions include their investment in Enovix, which is known for its innovative battery technology. These investments highlight Intel Capital's commitment to supporting advancements in energy storage technologies, making them a relevant player in this sector.


18. Khosla Ventures

  • Website: khoslaventures.com
  • Type: Venture Capital
  • Headquarters: Menlo Park, California, United States (USA)
  • Founded year: 2004
  • Headcount: 51-200
  • Number of deals in 2024: 97
  • LinkedIn: khosla-ventures

Khosla Ventures is a venture capital firm founded in 2004, based in Menlo Park, California. The firm specializes in providing funding and strategic guidance to startups across various sectors, including technology, healthcare, and sustainability. Khosla Ventures has a notable focus on energy storage, having invested in companies such as Ambri, which is developing liquid metal battery technology for grid-scale energy storage, and Natron Energy, a manufacturer of sodium-ion batteries. Their involvement in these companies through multiple funding rounds, including Series B, C, and D, highlights their active role in advancing energy storage technologies. Additionally, Khosla Ventures has invested in RedoxBlox, further emphasizing their commitment to the energy storage industry.


19. Blackstone

  • Website: blackstone.com
  • Type: Private Equity
  • Headquarters: New York, New York, United States (USA)
  • Founded year: 1985
  • Headcount: 1001-5000
  • Number of deals in 2024: 57
  • LinkedIn: blackstonegroup

Blackstone Inc. is a leading investment management firm based in New York, specializing in alternative investments across various sectors, including private equity, real estate, and credit solutions. Founded in 1985, Blackstone has built a robust portfolio and is known for its strategic investments that aim to create lasting value. In the energy sector, Blackstone has made notable investments that highlight its involvement in energy storage and renewable energy. For instance, they have invested nearly $4 billion in Invenergy, a company focused on renewable energy projects, which includes energy storage solutions. Additionally, Blackstone played a key role in a $250 million funding round for Sunnova Energy Corp., a company that provides solar energy services, which often incorporates energy storage systems. Furthermore, their financing agreement with Verdant Microgrid for $150 million underscores their commitment to developing microgrid projects, which are essential for energy storage and management. These transactions reflect Blackstone's active engagement in the energy storage industry, positioning them as a significant player in this market.



Energy Storage Insights: Key Investors in the US


InvestorHeadquarterSizeFoundedDeals 2024
U.S. Department of Energy (DOE)Washington, D.C., District Of Columbia, United States (USA)10001+1977597
Y CombinatorSan Francisco, California, United States (USA)51-2002005802
Breakthrough EnergyKirkland, Washington, United States (USA)51-200201538
Elemental ImpactHonolulu, Hawaii, United States (USA)51-200201219
Deep Tech Fund (an Alumni Ventures Fund)Manchester, New Hampshire, United States (USA)51-2002023258
IFC - International Finance CorporationWashington, D.C., District Of Columbia, United States (USA)1001-50001956107
SosvUnited States (USA)51-2001995170
Plug and Play Tech CenterSunnyvale, California, United States (USA)501-10002006253
MassVenturesWaltham, Massachusetts, United States (USA)1-10197828
KkrNew York, New York, United States (USA)1001-5000197674
Goldman SachsNew York, New York, United States (USA)10001+199859
ChevronHouston, Texas, United States (USA)10001+199916
Los Angeles Cleantech IncubatorLos Angeles, California, United States (USA)51-20020112
Energy Impact PartnersNew York, New York, United States (USA)51-200201527
Climate CapitalSan Francisco, California, United States (USA)1-10201517
Morgan StanleyNew York, New York, United States (USA)10001+198679
Intel CapitalSanta Clara, California, United States (USA)11-50199123
Khosla VenturesMenlo Park, California, United States (USA)51-200200497
BlackstoneNew York, New York, United States (USA)1001-5000198557


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