Top 50 CleanTech Angel Investors in United States in January 2025

David E. Weekly is the Head of The Capital One Lab of Capital One. He previously worked at Medcorder as a Founder and CEO. David E. Weekly attended Stanford University.

Edward Kim

Elizabeth Cutler and her partner Julie Rice were determined to find an alternative to the fitness routines that felt like work. In 2006, they created SoulCycle, a workout that combines inspirational coaching with high-energy music and a full body workout on the bike. Today, riders of all ages have responded to the SoulCycle cardio party withover 60,000 people riding at SoulCycle every week. Elizabeth was honored as one of Goldman Sachs' 100 Builders + Innovators in 2013 and 2014, and SoulCycle was voted one of the World's Top 10 Most Innovative Companies in Fitness of 2013 by Fast Company.In 2015, Elizabeth was voted one of Fast Company's Most Creative People in Business.

Ashley Mayer is the Operating Council at Mixing Board . Ashley Mayer attended Georgetown University.

Justin Hamilton is Founder, CEO at Clutterbot.

Healthcare M&A investment banker at Juniper Advisory. Previously Morgan Stanley & Northwestern University - Kellogg School of Management.

Luigi Bajetti is the managing partner and founder of Lombardstreet Ventures, an early-stage venture capital firm in Menlo Park, California.Luigi is a serial entrepreneur with over 25 years of experience in the tech and internet industries, with a wealth of knowledge and expertise in building and scaling startups.As a full-time investor since2013, he has been leveraging his experience and insights to identify and support the next generation of Silicon Valley founders. With a passion for backing game-changing technologies and a talent for spotting emerging trends, Luigi has a proven track record of success in identifying groundbreaking startups. He has invested almost always at the earliest possible stage of seed in 20+ US startups valued at over $30 billion combined, including 9 that have since become unicorns.

Kathy Fields is the Co-Founder of Alchemee. Kathy Fields attended Taylor University.

Dr Rand Hindi is an entrepreneur and investor in 50+ deeptech and web3 companies. He is the CEO at Zama, a homomorphic encryption startup. Rand started coding at the age of 10, created a social network at 14, and started his PhD at 21. He then created Snips, the first private-by-design voice assistant, which was acquired by Sonos. He was electedan MIT TR35, a Forbes “30 under 30”, and was a lecturer at Sciences Po in Paris as well as a member of the French Digital Council.He holds a BSc in Computer Science and a PhD in Bioinformatics from University College London (UCL).

Bill Gates is the Co-chair of Bill and Melinda Gates Foundation. He attended Harvard University.

Eugene Goldberg

Elon Musk has co-founded companies such as SpaceX and tunneling startup The Boring Company, and has played served as CEO of Tesla Motors since 2008. He previously worked as a sales manager at many enterprise LLCs. Elon Musk attended the University of Pennsylvania and received bachelor's degrees in economics and physics.

Luke Kupersmith - President & CEO @ Lojistic

Jeffrey Preston Bezos is the Founder of Blue Origin. He previously worked at Cashican People LLC as an Investor. Jeff Bezos attended Princeton University.

Venture Capitalist, Managing Partner, Chief Technology Officer

Mark Cuban is the founder of Fireside, Chairman and Founding Partner of AXS TV, and the Owner of Dallas Mavericks. He previously worked at Broadcast.com as a Co-Founder. Mark Cuban attended the Indiana University Bloomington.

Marc Tarpenning is a member of the advisory board at Clearpath Robotics , a manufacturer of unmanned vehicles for industrial research and development applications. He also provides services as an advisor to many other companies. Previously, he was a mentor at Greenstart.Marc is a Venture Partner at Spero Ventures. He was previously anentrepreneur in residence at Mayfield Fund before he joined Greenstart. Prior to that, he co-founded and served as the vice president for engineering at Tesla Motors. He also held executive positions at Packet Design, NuvoMedia, and Gemstar-TV Guide.Tarpenning holds a bachelor’s degree in computer science from the University of California, Berkeley. He lives in San Francisco, California, United States.

Warren Buffet is a businessman and investor. He was born Warren Edward Buffett on August 30,1930, in Omaha, Nebraska. Buffett's father Howard worked as stockbroker and served as U.S. Congressman. His mother, Leila Stahl Buffett, was a homemaker. Buffett was the second of three children and the only boy.Buffett demonstrated a knack forfinancial and business matters early on in his childhood. Friends and acquaintances have said the young boy was a mathematical prodigy, and was able to add large columns of numbers in his head-a talent he still occasionally shows off to friends and business associates.Warren often visited his father's stockbrokerage shop as a child, and chalked in the stock prices on the blackboard in the office. At 11 years old he made his first investment; he bought three shares of Cities Service Preferred at $38 per share. The stock quickly dropped to only $27, but Buffett held on tenaciously until they reached $40. He sold his shares at a small profit, but regretted the decision when Cities Service shot up to nearly $200 a share. He later cited this experience as an early lesson in patience in investing.By the age of 13, Buffett was running his own businesses as a paperboy and selling his own horseracing tip sheet. That same year, he filed his first tax return, claiming his bike as a $35 tax deduction.In 1942, Buffett's father was elected to the U.S. House of Representatives, and his family moved to Fredricksburg, Virginia, to be closer to the congressman's new post. Buffett attended Woodrow Wilson High School in Washington, D.C., where he continued plotting new ways to make money. During his high school tenure, he and a friend purchased a used pinball machine for $25. They installed it in a Washington, D.C. barbershop and, within a few months, the profits of the machine allowed Buffett and his friend to buy other machines. Buffett owned three machines in three different locations before he sold the business to a War Veteran for $1,200.Buffett enrolled at the University of Pennsylvania at the age of 16 to study business. He stayed two years, moved to the University of Nebraska to finish up his degree, and emerged from college at age 20 with nearly $10,000 from his childhood businesses.Buffett attended Columbia University for his advanced degree and in 1956, shortly after graduation, he formed the firm Buffett Partnership in his hometown of Omaha. His investment successes, particularly in buying undervalued companies whose stocks shortly began to rise, made him extremely rich and gained him the sobriquet, "Oracle of Omaha." Other notable career succeses include helping rescue Salomon Brothers from corporate raiders (1987) and taking charge of the New York City house (1992) in the wake of an insider trading scandal.In June 2006, Buffett made an announcement that he would be giving his entire fortune away to charity, committing 85 percent of it to the Bill and Melinda Gates Foundation. This donation became the largest act of charitable giving in United States history.The majority of Buffett's considerable fortune was amassed through Berkshire Hathaway, a company for which he is the largest shareholder and CEO. Ranked as Forbes' wealthiest man in 2008, his net worth is estimated at more than $62 billion.Source:

Bill Gates is the Co-chair of Bill and Melinda Gates Foundation. He attended Harvard University.

Ashton Kutcher is an actor, investor, entrepreneur, producer and philanthropist.Kutcher has been named one of TIME magazine’s “100 Most Influential People in the World,” as well as being honored by Vanity Fair ‘s “New Establishment List,” which identifies the top 50 of an innovative new breed of buccaneering visionaries, engineering prodigiesand entrepreneurs. Twice, Kutcher was named one of Forbes magazine’s “World’s Most Powerful Celebrities,” as well as one of Fast Company magazine’s “Most Creative People.”Kutcher has been investing in technology for over a decade, both as an angel investor and a founding partner of A-Grade Investments and Sound Ventures. His fund portfolio includes Airbnb, Uber, Flexport, Brex, Robinhood, Bird, Airtable and Affirm among others.Kutcher is also the co-founder of Thorn: Digital Defenders of Children (www.thorn.org). Thorn drives technology innovation to fight the sexual exploitation of children.Kutcher currently stars in the Netflix original series, The Ranch. He also serves as Executive Producer. Until 2015, Kutcher starred in the CBS comedy series Two and a Half Men. The show ranked as the second most-watched comedy on all of network television. Kutcher first gained recognition as Michael Kelso on the Fox series That 70’s Show, and went on to star in a variety of box office hits on the big screen – including What Happens In Vegas with Cameron Diaz, The Guardian with Kevin Costner, No Strings Attached with Natalie Portman and the cult hit Dude, Where’s My Car.Kutcher served as co-creator and producer of MTV's hit series, “Punk'd,” and The CW's reality series “Beauty and the Geek” and “True Beauty.” He has also produced films such as No Strings Attached, Killers and The Butterfly Effect. Additionally, Kutcher co-founded APlus, a digital media company devoted to spreading the message of positive journalism, a kind of storytelling that focuses on our shared humanity. In 2016, APlus was purchased by Chicken Soup for the Soul.

David Mytton is CEO of Console which helps developers find the best tools. He is an angel investor in early-stage developer-first startups.From 2009-2018, David was Co-founder & CEO at Server Density, a SaaS infrastructure monitoring startup. David built the original version of Server Density, including the open source monitoring agent andcustom time series database used by 700+ customers to manage mission critical IT environments. He grew the company in the UK and US through bootstrapped revenue and subsequent VC funding through to exit in 2018 to a US edge computing business, StackPath.David is also working towards an Engineering Science PhD in sustainable computing at the University of Oxford. His research has been featured in The Times, WSJ, Financial Times, Fast Company, Computer Weekly, and Sky News.

Dwayne “The Rock” Johnson is the new Investor of Salt and Straw and the Co-Founder of ZOA Energy. He is also known by his ring name, The Rock, is an American-Canadian actor, producer, and retired professional wrestler.Mr. Johnson was a professional wrestler for the World Wrestling Federation for eight years prior to pursuing an acting career. Mr.Johnson also attended the University of Miami.

Tobi Lütke founded Shopify in 2004. He has served as the Chief Executive Officer since 2008. Tobi worked on the core team of the Ruby on Rails framework and has created many popular open source libraries such as Active Merchant.

Before founding zulily, Darrell spent almost a decade at Blue Nile, where he was CTO and SVP of Marketing. In 2009, he spent a year at Microsoft leading the BizTalk Server business. Previously, he was at Starwave, a Seattle-based internet company, working on large web properties including ESPN.com and ABCNews.com. He attended the University ofVictoria. When he's not at zulily, Darrell's favorite thing to do is spend time with his young son and daughter, especially on trips to visit family in Canada and Ireland.

Mamoon Hamid is a Partner at Kleiner Perkins. Mamoon previously worked at Slack as a Board Director. He attended Harvard Business School, Stanford University, and Purdue University.

Mr. Vadon is one of the country’s leading internet retailing entrepreneurs, having co-founded two highly successful online specialty retail businesses. He brings to our Board in-depth experience in developing online businesses, effectively managing the use of technology, developing mobile applications and the associated user interfaces, as well ascritical business analytic acumen. His expertise is an invaluable resource for the Company as we continue to implement our interconnected retail strategy.In 2009, Mr. Vadon co-founded zulily, Inc., a daily deals site for moms, babies and kids, and currently serves as the Chairman of its board of directors. In 1999, Mr. Vadon founded Blue Nile, Inc., the leading online retailer of diamonds and fine jewelry, and served as the Chairman of its board of directors from its inception through 2013.During Blue Nile’s history, Mr. Vadon has also served as its Executive Chairman (from 2008 to 2011), Chief Executive Officer (from 1999 to 2008) and President (from 1999 to 2007). Prior to founding Blue Nile, Mr. Vadon was a consultant for Bain & Company, a management consulting firm, which he joined in 1992.

Alexandra Stanton

Dr. Garry Rayant is the Funder at Dear Doctor

Ernie Chow

Bhavik Bajaj

Dr. Franklin is the CEO and Managing Director of WVV Capital. He holds a Ph.D. from the Computer Science Department at Carnegie Mellon University and degrees in Computer Science, Mathematics, and Business from the University of Wisconsin-Madison. He is the recipient of the 2012 Allen Newell Award for Research Excellence, 2009 SOSP Best PaperAward, 2005 USENIX Security Best Paper Award, Department of Homeland Security Fellowship, and NSF Graduate Research Fellowship.

Jason Haider: Founder and CEO @ Xenco Medical

Mr. Coors is the founder and CEO of Steelhead Composites LLC. Previously, he was Principal at 9th Street Capital, a venture capital and private equity fund.Mr. Coors spent 6 years as Corporate Economist and Investment Strategist at Qualcomm Incorporated, a Fortune 500 company. Prior to joining Qualcomm, for 5 years he served as the Director ofResearch at Laffer Associates, a money management and institutional economic research and consulting firm. He serves on various corporate Boards and has received numerous awards in industry including being named one of Treasury and Risk magazine‘s ’40 under 40’ Upwardly Mobile Finance Execs in 2007.Mr. Coors is a CFA Charterholder. He holds a Master’s degree in Economics from the University of California, San Diego and a Bachelor’s degree from Colorado State University.

Dave Peacock is the former President of the Anheuser-Busch InBev subsidiary, Anheuser-Busch. He succeeded August Busch IV in 2008 after the acquisition of Anheuser-Busch was completed by InBev on November 18, 2008.

Computer Scientist & Engineer, Serial Tech Entrepreneur (3x), Investor. Founded and served as CEO of 3 companies in the industries of software, AI / ML, Agricultural Technology, Robotics / Hardware.Harvard University Class of 2019/2020Also interested in: Computer Networks, Economics (particularly Game Theory and BehavioralEconomics)

Entrepreneur & Angel Investor

Bootstrapped Debt Financing

Robin is the CEO of Helix. Before joining Helix, Robin held various positions at Under Armour. Prior to that, he co-founded and served as the chief executive officer of MapMyFitness. Robin holds a master's degree in finance from the University of Colorado at Denver.

Mr. Mohit Goel is the CEO of one of India’s leading real estate firms – Omaxe Ltd. This second generation entrepreneur leveraged his sharp business acumen to bring about structural changes in Omaxe to essentially turn around the company at a time when the real estate sector had no traction and a tepid demand. Mohit is detail oriented and a sticklerfor punctuality.

Tim Schumacher is a Managing General Partner at World Fund. Tim previously worked at Sedo.com as a Member Board Of Directors. He attended University of Cologne and Stockholm School of Economics.Tim Schumacher Co-Founded and was the longtime CEO of the publicly traded company Sedo AG, which currently has revenues of 130m euros per year andmaintains approximately 350 employees. Since 2012 he has dedicated his professional career to the German startup scene, acting both as a business angel and mentor for young companies with economic potential. His current startups, among many others, are Eyeo/Adblock Plus, Aklamio, Hitfox and Ecosia.

Darren leads Google’s Global Customer Acquisition organization. Prior to joining Google, Darren was a Partner at McKinsey & Company.Darren is active in the aviation community. In addition to his Board position with the EAA, he serves as an appointed Board member for the Hiller Aviation Museum in San Carlos, CA. As president of theNorthern California Aerobatic Club, he led the Chapter to becoming the largest IAC chapter in the country.Darren has logged over 6,000 hours of flying time, holds an ATP certificate and is a current CFI, and owns several experimental and certified light aircraft.

Greg Richards - Founder and Managing Director @ Arable Capital Partners

John Chory

Founder and Patent holder - GROTU mobile app @ 101 Islands LLC. Angel investor in 40 pre-IPO technology startups. Frequently invited by accelerators and angel forums to Judge startup competitions and discuss technology innovation. Former IT Consulting industry executive who sold hundreds of millions of dollars in consulting services to Fortune 500companies working for Cap Gemini, HCL, L&T, NTT data.

Lou Salkind is the Board Member of Schrodinger.Lou Salkind is a Managing Director of D. E. Shaw & Co., L.P. and a member of the Executive Committee of D. E. Shaw & Co., L.P., a global investment firm whose activities center on various aspects of the intersection between technology and finance. Dr. Salkind received his A.B. fromPrinceton University in 1978, where he studied mathematics and physics.His Ph.D. in 1990 from the Courant Institute of Mathematical Sciences at New York University, where he studied computer science and robotics. Dr. Salkind also serves on the board of the Union of Concerned Scientists, a non-profit organization that provides independent scientific analysis on a range of public policy issues.

James is the Co-founder and CEO of thredUP. He attended Boston College, the University of Oxford, Harvard Business School, and Harvard Kennedy School.

Immelt has held several global leadership positions since coming to GE in 1982, including roles in GE's Plastics, Appliances, and Healthcare businesses. In 1989 he became an officer of GE and joined the GE Capital Board in 1997.Immelt has been named one of the World's Best CEOs three times by Barron's, and since he began servingas chief executive officer, GE has been named America's Most Admired Company in a poll conducted by Fortunemagazine and one of The World's Most Respected Companies in polls by Barron's and the Financial Times.Immelt was the chair of President Obama's Council on Jobs and Competitiveness. He is a member of The American Academy of Arts & Sciences.Immelt earned a B.A. degree in applied mathematics from Dartmouth College in 1978 and an M.B.A. from Harvard University in 1982. He and his wife have one daughter.

Sylvain Theveniaud - Managing Director @ Allianz Accelerator

Summer Watson is an English operatic soprano.

Andy Smith is the Advisor at Nubix.