Top 50 CleanTech Angel Investors in United States in January 2026

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.

Justin Hamilton is Founder, CEO at Clutterbot.

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

Venture Capitalist, Managing Partner, Chief Technology Officer

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

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:

Edward Kim

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

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.

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.

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

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.

Luke Kupersmith - President & CEO @ Lojistic

Eugene Goldberg

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.

Marc Tarpe is based out of Redwood City, California and serves as the Venture Partner of Spero Ventures and also serves as the Board of Director of Wattch. Marc previously served as Co-Founder of Tesla. Marc attended the University of California, Berkeley.

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

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

Howard Wenger serves as SunPower president, regions and is responsible for the company’s global residential, commercial, utilities and power plants business, including sales, business development, customer operations, sales and finance operations, and engineering, procurement and construction. Wenger also serves as president of SunPowerCorporation, Systems, the company’s turn-key power systems group. Previously, he was SunPower president, utility and power plant (UPP), and from 2007 through 2009, Wenger served as president, global business units, where he helped grow SunPower’s sales more than 500 percent. Prior to the company’s acquisition of PowerLight Corporation in 2007, Wenger held positions at PowerLight as executive vice president and a member of its board, and as vice president, North American Business, for AstroPower, Inc (acquired by General Electric.) During his career in the solar and utility power field, Wenger has authored dozens of papers and public policies to mainstream solar power and developed software programs and tools still in use today. Wenger holds a B.A. in Environmental Studies at the University of California, Santa Barbara, and an M.S. in Engineering from the University of Colorado, Boulder.

Andy Smith is the Advisor at Nubix.

Greg Richards - Founder and Managing Director @ Arable Capital Partners

John Chory

Alexandra Stanton

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)

blah - teh software was teh busted and they didn't want to fix it or hire someone to fix it, odd folks, these.

Ernie Chow

Matt is cofounder and CTO of Expanse, which created the Attack Surface Management (ASM) category. Matt is an expert in large-scale optimization, distributed sensing, and machine learning algorithms run on massively parallel systems. Prior to co-founding Expanse, Matt worked for DARPA, including a deployment to Afghanistan. Matt holds PhD andMaster’s degrees in Electrical Engineering, and a Bachelor’s degree in Physics, all from Stanford University.

Will Smith is an actor, producer and musician, two-time Academy Award® nominee four-time Grammy nominee and winner Will Smith has enjoyed a diverse career encompassing films, television and multiplatinum records.Smith’s vast filmography includes transformative portrayals of true-life icons in “Ali,” “The Pursuit of Happyness” and “Concussion.” Hehas headlined an extraordinary list of films, including “Hitch,” “I am Legend,” “I, Robot,” “Independence Day,” “Men in Black I, II, and III” and “Suicide Squad".Currently, Smith can be seen in Walt Disney Pictures “Aladdin” in the iconic role of the Genie. The movie was directed by Guy Ritchie and has made over $1 billion worldwide since its release on May 24, 2019. Smith will next be seen staring in Ang Lee’s action/thriller, “Gemini Man” out this fall. Next year, he’ll grace the screen once again in the beloved franchise, Sony’s “Bad Boys for Life,” premiering around the world in January 2020, in which he will once again reprise his iconic role as Detective Mike Lowrey opposite Martin Lawrence. Smith will next go into production on Warner Brother’s “King Richard” where he will star in the titular role of Richard Williams, the father of renounced tennis stars Venus and Serena Williams.Recently, Smith created the daring Facebook Watch series, “Will Smith’s Bucket List” where he challenges himself to a different item from his bucket list each week, including performing standup comedy with Dave Chappelle, skydiving in Dubai, swimming with sharks, and racing a Formula 1 car in Abu Dhabi. The show was a massive success for the platform. He began his career as a musician selling millions of records worldwide before crossing over into television with the beloved “Fresh Prince of Bel Air.” In 1998 he and partner James Lassiter founded production and management company Overbrook Entertainment, which has produced numerous top film and television projects.In addition to his artistic achievements, Smith is a successful business owner. Along with his wife, Jada Pinkett Smith, he launched a new media venture, Westbrook Inc. This is a cross-platform holding company formed to execute the Smith Family’s global content and commerce business strategy. Westbrook Inc. will encompass subsidiary companies including the existing Overbrook Entertainment, Red Table Talk Enterprises and the recently formed Westbrook Studios, Westbrook Media, and Good Goods, the latter an elevated merchandise business. Additionally he and Jada founded the Will & Jada Smith Family Foundation. WJSFF is a nonprofit, philanthropic organization committed to improving lives and investing in organizations and initiatives that empower traditionally overlooked communities.

Ex-Apple, ex-Google, ex-BlackBerry product hardware veteran turned parallel-entrepreneur. Currently President and Founder at Omni Venture Labs. #hardware #deeptech #industry4.0 #frontiertech. Prolific inventor with over 50 patents, experienced product and innovation architect. Lover of advanced composites. I am driven to make impossible productspossible, functional and elegant. follow me on LinkedIn for your daily dose of design, manufacturing and engineering innovation.

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.

A co-founder of August Capital in 1995, Dave's commitment to entrepreneurs and their market vision is reflected by his long-standing board relationships, he has served on more than 25 boards of directors during his 20 year venture capital career including Microsoft, Sun, Seagate, Adaptec, and Grand Junction Networks (acquired by Cisco).Priorto August Capital, Dave was a co-founder of Technology Venture Investors (TVI) in 1980 where he was involved in four highly successful funds that invested in more than 100 start-up and emerging growth companies. Among these early investments was Microsoft, where TVI was the sole investor and where Dave has been on the board of directors since 1981.Dave began his venture career at Institutional Venture Associates, where he spent a year after graduating from business school. Previously, Dave was a design engineer and development manager at Diablo Systems (acquired by Xerox) where he collaborated on and/or led various disk drive and printer programs.Dave received a BSME from Columbia University and an MBA from Stanford University. He also completed coursework for an MSEE at Stanford University. He has served as president of the Western Association of Venture Capitalists and is a past director of the National Venture Capital Association.

President

Terrence Thornton, better known as Pusha T, is an American hip hop recording artist and one half of hip hop duo Clipse, along with his brother and fellow rapper Gene “No Malice” Thornton. He is also the CEO of Re-Up Records along with his brother. Source: Hollywood Life

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.

Jason Haider: Founder and CEO @ Xenco Medical

Venture Capitalist, investor and former Enterpreneur. Founder x5, profitable bootstraps, 3 exits; investor x30+ in Israel, Silicon Valley and Korea; passion for: cyber security, building scalable B2B companies

Summer Watson is an English operatic soprano.

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.

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.

Nitesh Banta is the Co-Founder & CEO at B12.

Vernon Davis - Advisor @ SportsCastr

Global tech startup CXO and board director. Passionate leader who builds and motivates teams to achieve audacious goals with urgency and purpose. Seasoned entrepreneur with USD $350M+ of exits and a track record of driving disruptive tech from launch to rapid scale both in startups and within large organizations. Mentor and force multiplier whosementees have created USD $100B+ enterprise value. Born at 337.10 PPM.

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.

Nicolaj Reffstrup is the Founding Partner of Look Up Ventures. He previously worked at Lifestyle and Design Cluster as a Board Member.Nicolaj Reffstrup attended Copenhagen Business School.

Kim Kardashian is the current Chief Taste Consultant of Beyond Meat. She previously worked at Glu Mobile as a Member of the Board of Directors.

Ivanka Trump

Mark Heising is a Managing Director of Medley Partners in San Francisco, CA. He founded the firm in 2004.Previously he was the President of VLSI Cores, which designs and licenses cryptographic integrated circuits.He holds six U.S. Patents in cryptography, compression and data communications.Mark serves as a director for Lam Aviation,Sion Power, Solexant and Tabula. On the non-profit side, Mark currently serves on the Board of Directors of the Bipartisan Policy Center and the Environmental Defense Fund.Mark earned a BS in Physics and a MS in Electrical Engineering and Computer Sciences from the University of California at Berkeley.

He is the Founder of Sustainable Energy and Agriculture Technology (SEAT, LLC) and AGR Health. He attended Cornell University, McGill University, and the Indian Institute of Technology, Kharagpur.

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.