# Top 50 Clean Energy Startup Investors in United States in May 2026 ## Clean Energy Venture Group - Type: VC Fund - Location: Brookline, Massachusetts, United States - Relevant deals: 8 - Stages: Series A, Seed - Focus: Energy, Renewable Energy, Manufacturing CEVG is an angel investor collective that invest in and mentors early-stage cleantech and climatetech startups across North America. ## Energy Impact Partners - Type: VC Fund - Location: New York, New York, United States - Relevant deals: 6 - Stages: Series A, Series B, Series C - Focus: Software, Energy, Renewable Energy Energy Impact Partners (EIP) is a collaborative strategic investment firm that invests in companies optimizing energy consumption and improving sustainable energy generation. Through close collaboration with its strategic investor base, EIP seeks to bring the best companies, buying power and vision in the industry to bear on the emerging energy landscape. ## Clean Energy Ventures - Type: VC Fund - Location: Boston, Massachusetts, United States - Relevant deals: 6 - Stages: Series A, Seed, Convertible Note - Focus: Energy, Manufacturing, Renewable Energy Clean Energy Ventures invests in scalable early-stage climate tech startups and clean energy technologies addressing global climate change. ## Safar Partners - Type: VC Fund - Location: Cambridge, Massachusetts, United States - Relevant deals: 5 - Stages: Seed, Series A - Focus: Biotechnology, Manufacturing, Health Care Safar Partners is a seed- to growth-stage venture fund investing primarily in technology companies out of MIT, Harvard, and the University of Rochester. We invest in platform technologies in the cleantech and advanced materials, AI/IT and robotics, and life science/medical device areas. ## Third Sphere - Type: VC Fund - Location: Brooklyn, New York, United States - Relevant deals: 5 - Stages: Seed, Pre-Seed, Convertible Note - Focus: Software, Real Estate, Transportation Early-stage fund focused on rapid, scalable climate action and targeting outsized impact and outsized returns. ## Khosla Ventures - Type: VC Fund - Location: Menlo Park, California, United States - Relevant deals: 5 - Stages: Series A, Series B, Seed - Focus: Software, Health Care, Artificial Intelligence Khosla Ventures invests in companies that are bold, early and impactful. The firm was started in 2004 by Vinod Khosla, co-founder of Sun Microsystems, to provide venture assistance to entrepreneurs. Headquartered in Menlo Park, Calif., Khosla Ventures invests in a range of areas including AI, climate, sustainability, enterprise, consumer, fintech,digital health, medtech and diagnostics, therapeutics and frontier technology. ## Chrysalix Venture Capital - Type: VC Fund - Location: Vancouver, British Columbia, Canada - Relevant deals: 5 - Stages: Series B, Series A - Focus: Energy, Manufacturing, CleanTech Leading global venture capital fund that invests in resource intensive industries across North America and Europe. ## Austin Ventures - Type: VC Fund - Location: Austin, Texas, United States - Relevant deals: 5 - Stages: Series B, Series A, Series C - Focus: Software, Enterprise Software, Internet Austin Ventures is a venture capital and private equity company that specializes in partnering with talented executives and entrepreneurs to build companies. It was founded in 1984 and headquartered in Austin, Texas. ## Wonder Ventures - Type: VC Fund - Location: Santa Monica, California, United States - Relevant deals: 4 - Stages: Seed, Pre-Seed, Series A - Focus: Software, Health Care, Internet Wonder Ventures invests in entrepreneurs who have great ideas. Who build the world’s most innovative technology companies in order to address the world’s toughest challenges. Who think of long-term solutions that span generations.We are based in Santa Monica, CA. We actively invest in Los Angeles, New York City, Silicon Valley, Washington D.C.and anywhere great teams are located. ## CenterPoint Venture Partners - Type: VC Fund - Location: Dallas, Texas, United States - Relevant deals: 4 - Stages: Series C, Series B, Series A - Focus: Electronics, Manufacturing, Information Technology CenterPoint Ventures is one of the largest early-stage venture capital firms based in the Southwest. Founded in 1996, we have helped scores of entrepreneurs build successful, enduring companies that deliver long-term value to investors, founders, employees and customers alike. ## The Engine - Type: VC Fund - Location: Cambridge, Massachusetts, United States - Relevant deals: 4 - Stages: Seed, Series A, Series B - Focus: Biotechnology, Health Care, Manufacturing A home for Tough Tech founders. ## Braemar Energy Ventures - Type: VC Fund - Location: New York, New York, United States - Relevant deals: 4 - Stages: Series B, Series C, Series A - Focus: Manufacturing, Energy, Renewable Energy While energy has been a key to global development since the dawn of the electronic age, the beginning of the new century has seen a tremendous surge in the technology advancements, market activity and the strategic importance of energy around the world. While many companies and investors have sought to take advantage of the tremendous opportunitytoday's energy industry presents, the unique market issues, scientific contributions and complex web of interrelationships require a specialized expertise.Braemar Energy Ventures was formed in 2002 to create a venture capital firm with that expertise. Focused exclusively on technology and communications opportunities in the energy sector, Braemar Energy Ventures has both the industry and operating knowledge to select promising young companies, bring them into the larger energy world and guide them to reach their full potential.The firm's four principals have a long history of successful investments, as well as experience financing and operating companies in the energy sector. Together, they have been responsible for investing in almost 40 energy technology companies, including early stage companies which have grown to become some of the most successful in the sector.Braemar Energy Ventures works with management teams who are skilled in their industry but who can benefit from Braemar's assistance with strategic direction and financing issues. Having worked with many early stage companies, the Braemar Energy Ventures principals understand the challenges that many young companies face and provide invaluable counsel to their portfolio companies on longer-term issues, allowing management to focus on daily operations. ## Breakthrough Energy Ventures - Type: VC Fund - Location: Paris, Ile-de-France, France - Relevant deals: 3 - Stages: Series A, Series B - Focus: Energy, Renewable Energy, Manufacturing Focused on developing and deploying the critical climate solutions our world needs to reach net-zero emissions by 2050. ## Robbins Venture Capital - Type: VC Fund - Location: Elizabethtown, Kentucky, United States - Relevant deals: 3 - Stages: Seed, Series A - Focus: Health Care, CleanTech, Clean Energy Dr. Robert E. Robbins is the CEO and founder of the Robbins Venture Capital group. Robbins Venture Capital group is a venture capital fund located in Elizabethtown, Kentucky that primarily invests in the evolving technology and medical sectors. For the last 20 years, Dr. Robbins has invested in numerous start-ups including ZirMed, which has beenranked #1 for End-to-End Revenue Cycle Management by Black Book for 7 consecutive years. ZirMed reached a company valuation of $750 million before being acquired by Navicure to create Waystar. At Robbins Venture Capital, we look to create a bigger and brighter future with our investments. ## American Family Insurance Institute for Corporate and Social Impact - Type: VC Fund - Location: Madison, Wisconsin, United States - Relevant deals: 3 - Stages: Seed, Series A, Series B - Focus: Software, Health Care, Education Changing the world can't be done alone. We invest in entrepreneurs that are making an impact on their communities and use talent and resources to amplify our investments. ## Jericho Energy Ventures - Type: VC Fund - Location: Vancouver, British Columbia, Canada - Relevant deals: 3 - Stages: Series A - Focus: CleanTech, GreenTech, Clean Energy Jericho Energy Ventures is focused on advancing the low-carbon energy transition with investments in hydrogen technologies, energy storage, carbon capture and new energy systems. ## BoxGroup - Type: VC Fund - Location: New York, New York, United States - Relevant deals: 3 - Stages: Seed, Series A, Series B - Focus: Software, Health Care, Internet BoxGroup is an early stage investment fund focused on technology companies. Contact Us: hello@boxgroup.com ## Starlight Ventures - Type: VC Fund - Location: Miami, Florida, United States - Relevant deals: 3 - Stages: Seed, Series A - Focus: Biotechnology, Energy, Health Care Starlight Ventures provides early stage capital to the brightest entrepreneurs using science and technology to address humanity's biggest challenges and opportunities. It was founded in 2017 and is headquartered in Miami, Florida. ## PJC - Type: VC Fund - Location: Boston, Massachusetts, United States - Relevant deals: 3 - Stages: Seed, Series A, Series B - Focus: Software, Health Care, Enterprise Software We know the challenges founders face because we've been there too. Thanks to our decades of thriving and surviving in recessions and booms, alike, we know the financial discipline and operational expertise it takes to build businesses that endure. ## EnCap Flatrock Midstream - Type: VC Fund - Location: San Antonio, Texas, United States - Relevant deals: 3 - Stages: Private Equity, Angel, Post-IPO Equity - Focus: Energy, Oil and Gas, Logistics EnCap Flatrock Midstream is a venture capital firm with a singular focus: identifying, investing in and enhancing the value of great businesses and attractive assets in the midstream sector of North America's oil and gas industry. Founded in 2008 by Flatrock Energy Advisors and EnCap Investments L.P., the firm is guided by a disciplined andpersistent approach to value creation through the rigorous application of intellectual and financial capital. The firm manages the EnCap Flatrock Midstream Funds I, II and III, which together have approximately $5.6 billion in institutional capital commitments from a broad range of prestigious institutional investors. EnCap Flatrock has more than $6.5 billion in total assets under management. ## Kapor Capital - Type: VC Fund - Location: Oakland, California, United States - Relevant deals: 3 - Stages: Seed, Series A, Series B - Focus: Education, Software, Health Care Kapor Capital is an Oakland-based venture capital firm that invests in industry-transforming startups. We redefine what venture capital is capable of by prioritizing a new outcome: a more fair, just, and equitable society for low income communities and underrepresented communities of color. ## Hess Corporation - Type: VC Fund - Location: New York, New York, United States - Relevant deals: 3 - Stages: Series A - Focus: CleanTech, GreenTech, Clean Energy Hess Corporation is a leading global independent energy company primarily engaged in the exploration and production of crude oil and natural gas. Hess Corporation has developed apps like Hess Jet and Hess Chopper. This company was founded in 1993. ## Backstage Capital - Type: VC Fund - Location: West Hollywood, California, United States - Relevant deals: 3 - Stages: Seed, Pre-Seed, Series A - Focus: Software, Health Care, Internet Backstage Capital is a venture capital fund investing in the best startups led by underrepresented founders in the U.S. The firm was founded in 2015 by Arlan Hamilton and is headquartered in West Hollywood, California, United States. ## Bolt - Type: VC Fund - Location: San Francisco, California, United States - Relevant deals: 3 - Stages: Seed, Pre-Seed, Series A - Focus: Software, Health Care, Internet of Things Bolt: Investing at the intersection of the digital and physical worlds ## Anzu Partners - Type: VC Fund - Location: Washington, District of Columbia, United States - Relevant deals: 3 - Stages: Series A, Series B - Focus: Biotechnology, Manufacturing, Software Anzu Partners is an investment firm that focuses on industrial and life science technology companies with the potential to transform their industry. Anzu's portfolio support platform is dedicated to drive results beyond our initial investment and establish long-term relationships. We team with entrepreneurs to develop and commercializetechnological innovations by providing capital and deep expertise in business development, market positioning, global connectivity, and operations. .Co-founders Whitney Haring-Smith, David Michael, and David Seldin launched the firm in 2014 in Washington, District of Columbia. ## Tamarack Global - Type: VC Fund - Location: New York, New York, United States - Relevant deals: 3 - Stages: Seed, Series A, Series B - Focus: Media and Entertainment, Aerospace, Renewable Energy Tamarack Global operates as an investment firm that invests in new markets and new economies. The frim specializes in the fields of finance, financial services, and hedge funds. ## Milkbox Partners - Type: VC Fund - Location: New York, New York, United States - Relevant deals: 3 - Stages: Series A, Seed - Focus: Machine Learning, Software, Information Technology Milkbox Partners, early stage investment and advisory firm, angel investors, startups, venture capital ## Next Wave Impact - Type: VC Fund - Location: Denver, Colorado, United States - Relevant deals: 2 - Stages: Seed, Series A - Focus: Software, Marketplace, Health Care We are working to increase diversity, inclusion, and impact in early-stage investing and our entrepreneurial ecosystem through our innovative learning-by-doing progressive fund model. Our global fund has 99 women investors, 25 of them women of color, which is led by an experienced investment committee of ten women. We are building a portfolio ofinvestments in early-stage impact companies, diversified across industry and geography, over a four year investment period. We will make 6-8 investments in each of the first two years and then do some selected follow-on investments in those companies in years three and four. We are excited about this model, building on two pilots in the United States and Europe (the Rising Tide Pilots) with nearly 200 women, which made 18 investments. Together, we are creating the next wave of educated and trained angel investors focused on both social impact and financial returns, which are investing in underrepresented entrepreneurs. ## Calvert Impact Capital - Type: VC Fund - Location: Bethesda, Maryland, United States - Relevant deals: 2 - Stages: Debt Financing, Series A - Focus: Financial Services, Finance, Energy Investing in a more sustainable & equitable world ## 1776 Ventures - Type: VC Fund - Location: Washington, District of Columbia, United States - Relevant deals: 2 - Stages: Seed, Series A, Convertible Note - Focus: Education, EdTech, Software 1776 Ventures is a global seed fund investing in companies in the following sectors: education, energy, smart cities, transportation, food/agriculture, fintech, and healthcare. ## Rho Ventures - Type: VC Fund - Location: New York, New York, United States - Relevant deals: 2 - Stages: Series B, Series A - Focus: Software, Biotechnology, Health Care We invest across most high growth sectors of today’s economy and have developed deep expertise and relationships in Information Technology, Communications, New Media, Healthcare and New Energy.Since 1981, Rho Ventures has been investing in innovators that redefine the status quo. Rho’s investment philosophy does not fit a conventional model,much like the visionary innovators we back. We believe that formulaic approaches to investing lead to risk averse strategies that stifle innovation and differentiation. We actively avoid restrictive boundaries around ideas, growth opportunities and entrepreneur profiles. To find extraordinary opportunities, we are not bound by a particular stage of investment and do not shy away from contrarian ideas.We believe that great companies take root in unconventional places and that successful entrepreneurs frequently break the mold. The ideas we back come from a variety of sources: an MBA student who is trying to change new media advertising practices; an experienced entrepreneur seeking to commercialize a disruptive biofuels technology; or an executive looking to spin out and develop an abandoned asset developed by a pharmaceutical company. We are seasoned investors who have backed more than 200 companies through multiple cycles. Identifying interesting opportunities and providing capital is just the beginning. We offer deep-sector expertise in today’s high-growth markets, but we do not let any one area of knowledge guide our overall investment strategy.Ultimately, we look for entrepreneurs who we can help make very big waves, not just stir the waters and move on to the next venture. ## OVP Venture Partners - Type: VC Fund - Location: Seattle, Washington, United States - Relevant deals: 2 - Stages: Series B, Series A, Series C - Focus: Software, Biotechnology, Health Care OVP Venture Partners is a venture capital firm specializing in early-stage technology-based companies. ## WindSail Capital Group - Type: VC Fund - Location: Boston, Massachusetts, United States - Relevant deals: 2 - Stages: Debt Financing, Seed - Focus: Energy, Software, Renewable Energy Growth Capital for the Clean Economy ## Alex Kahn - Type: Angel - Location: Palo Alto, California, United States - Relevant deals: 2 - Stages: Series A, Seed, Angel - Focus: Internet, Health Care, Sponsorship Trusted advisor to successful tech entrepreneurs and family offices. ## Foothill Ventures - Type: VC Fund - Location: Los Altos, California, United States - Relevant deals: 2 - Stages: Seed, Series A - Focus: Software, Artificial Intelligence, Health Care Foothill Ventures is a technology-focused venture fund that invests in seed-to-A-round startups in the United States. It is a successor fund to the TEEC Angel Fund. Foothill Ventures was founded in 2017 and is headquartered in Los Altos, California. ## Draper Athena - Type: VC Fund - Location: Seoul, Seoul-t'ukpyolsi, South Korea - Relevant deals: 2 Draper Athena is a venture capital firm that invests in leading technology startups and exceptional founders around the world. Their expertise is in Big Data, Mobile, Energy Tech, Software, Semiconductors, Robotics and Consumer Internet. The principals bring a broad array of technical, financial, and operational experience to making each investmentdecision and supporting each portfolio company. As a member of the Draper Venture Network, they offer world-class business development and market intelligence capabilities. ## TSVC - Type: VC Fund - Location: Los Altos, California, United States - Relevant deals: 2 - Stages: Seed, Series A - Focus: Software, Artificial Intelligence, Health Care Founded in 2010, TSVC (formerly TEEC Angel Fund) is proud to be a leading early-stage venture capital fund in Silicon Valley. ## Sierra Ventures - Type: VC Fund - Location: San Mateo, California, United States - Relevant deals: 2 - Stages: Series A, Series B, Seed - Focus: Software, Information Technology, Enterprise Software Sierra Ventures is an early-stage venture capital firm investing in the future of enterprise, healthcare, infrastructure, and more. ## Monitor Ventures - Type: VC Fund - Location: Los Angeles, California, United States - Relevant deals: 2 - Stages: Series C, Series A, Series B - Focus: Enterprise Software, Mobile, Advertising Monitor Ventures is an early-stage venture capital firm that partners with exceptional entrepreneurs to commercialize technology into world-class products and services.Founded in 2002, the Firm leverages the investment, operating and entrepreneurial experience of its partners with its privileged access to the resources of the Monitor Group toaccelerate portfolio companies path to customers, capital and profitability. ## Eugene Goldberg - Type: Angel - Location: New York, New York, United States - Relevant deals: 2 - Stages: Angel - Focus: CleanTech, Clean Energy, Renewable Energy Eugene Goldberg ## Prime Impact Fund - Type: VC Fund - Location: Cambridge, Massachusetts, United States - Relevant deals: 2 - Stages: Seed, Series A, Series B - Focus: Energy, Renewable Energy, Manufacturing Prime Impact Fund invests in transformative technology companies with the potential for gigaton-scale climate impact. ## Burrill & Company - Type: VC Fund - Location: San Francisco, California, United States - Relevant deals: 2 - Stages: Series B, Series A - Focus: Biotechnology, Health Care, Medical Burrill & Company is a venture capital and private equity firm that invests in life sciences, biotechnology, and healthcare companies. ## SoftBank Capital - Type: VC Fund - Location: Tokyo, Tokyo, Japan - Relevant deals: 2 - Stages: Series B, Series A - Focus: Mobile, Software, Advertising SoftBank Group provides venture funding and strategic support to exceptional entrepreneurs building disruptive enduring businesses. They are a small team of experienced entrepreneurs and investors who take an "active" approach to helping their companies reach their full potential. They manage $600 million across three funds and investacross a company’s lifecycle, from early to growth stages. Through their close ties to a number of Asia’s leading mobile, internet and technology companies – including strategic partners SoftBank Corp, Yahoo! Japan and Alibaba Group – SoftBank Capital offers unique expertise to businesses seeking to address the Asian market. Since 1995, SoftBank Capital has partnered with internet pioneers such as Criteo, Gilt Groupe, OMGPOP (Zynga), betaworks, BuzzFeed, Buddy Media (Salesforce.com), Huffington Post (AOL), Associated Content (Yahoo!), Danger (Microsoft), Geocities (Yahoo!), E*Trade and Yahoo!. ## Acrew Capital - Type: VC Fund - Location: San Francisco, California, United States - Relevant deals: 2 - Stages: Series A, Seed, Series B - Focus: Software, Financial Services, FinTech Defining the future of venture. ## ONE WORLD Impact Investments LLC - Type: VC Fund - Location: Palo Alto, California, United States - Relevant deals: 2 - Stages: Seed, Series A, Series B - Focus: Education, Health Care, Software ONE WORLD provides training & investment capital to social impact enterprises. The mission of ONE WORLD is to scale social impact and improve the lives of individuals globally. In January 2017, ONE WORLD launched its impact seed fund focused on early-stage for-profit companies that are addressing social or environmental challenges. As ofJanuary 2022, the portfolio has 25 active investments, has participated in 15 follow-on rounds of financing, and has had 2 exits. ## BP Ventures - Type: VC Fund - Location: Palo Alto, California, United States - Relevant deals: 2 - Stages: Series A, Series B - Focus: Energy, Renewable Energy, Manufacturing bp Ventures plays a key role in helping the company reinvent itself as an integrated energy company, in line with our new purpose: reimagining energy for people and planet. ## Mark Cuban - Type: Angel - Location: Dallas, Texas, United States - Relevant deals: 2 - Stages: Seed, Series A - Focus: Software, Blockchain, Artificial Intelligence Mark Cuban is the founder of Fireside, Chairman and Founding partner of AXS TV, and the Owner of Dallas Mavericks. Prior to that, he was the Co-Founder of Broadcast.com. Mrk attended the Indiana University Bloomington. ## Prelude Ventures - Type: VC Fund - Location: San Francisco, California, United States - Relevant deals: 2 - Stages: Series A, Series B, Series C - Focus: Software, Energy, Manufacturing Prelude Ventures invests in and supports early-stage startups with the greatest potential to mitigate climate change. For us, climate is everything. ## Double M Partners - Type: VC Fund - Location: Los Angeles, California, United States - Relevant deals: 2 - Stages: Seed, Series A - Focus: Software, Internet, Advertising Double M Partners Venture Capital Fund ## Alumni Ventures - Type: VC Fund - Location: Manchester, New Hampshire, United States - Relevant deals: 2 - Stages: Seed, Series A, Series B - Focus: Software, Information Technology, Health Care Alumni Ventures offers diversified venture portfolios to accredited investors into highly competitive deals that individuals typically do not have access to on their own. # About Shizune Shizune.co is an investor database. Core features: - 48,091 startup investors (angels, VCs, accelerators, and others) - Email, phone, LinkedIn (for intros), socials, and other contact data - Updated daily from public funding news - CSV and Excel export The User can access the full database FOR FREE after signing up: shizune.co