Top 50 Clean Energy Angel Investors in United States in January 2025

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.

Kevin Weatherman - VP Partnerships & Cloud Enterprise BD @ Moloco

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:

Trusted advisor to successful tech entrepreneurs and family offices.

Nat Friedman is an entrepreneur and developer. He attended the Massachusetts Institute of Technology. Nat Friedman has two degrees from MIT and has been writing software for 27 years. Nat Friedman is passionate about building products that delight customers with love and attention to detail.In 1999, he co-founded Ximian with Miguel de Icaza. Natwas a co-founder and chairman of the GNOME Foundation. At Novell, Nat ran engineering for a $110M product and served as CTO of the Linux business.

Josh loves studying companies or trends which have touch points with governance or with large industries or parts of society that are off the Silicon Valley radar. He previously founded Champion Hill Labs, which performed consulting services for venture firms and hedge funds, and through which he invested in SpaceX, Flexport, and RigettiComputing. Before that he cut his teeth in the venture industry during six years on the team at TrueBridge Capital Partners, committing about $1 billion to venture capital firms globally as an LP, and leading the team’s investments in several mid-stage companies. He began his career in finance at USAA Real Estate Company. Before becoming an investor, Josh spent about six years as an officer in the US Marine Corps, in infantry and combat engineering roles, and has led three different platoons ranging from 10-60 Marines. In his last role he led a reinforced rifle platoon and was responsible for the security and civil development of a city of 10,000 people along the Euphrates River. He graduated from Duke University. When not chasing his young kids he enjoys Alan Furst novels and any time spent in the great outdoors.

Murat Abdrakhmanov is a co-investor at 2C2P. Attended Fuqua Executive school of bussines.

Jeremy is a full time angel from Singapore who invests across USA/Canada, Europe, and Israel.

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

Nat Friedman is an entrepreneur and developer. He attended the Massachusetts Institute of Technology. Nat Friedman has two degrees from MIT and has been writing software for 27 years. Nat Friedman is passionate about building products that delight customers with love and attention to detail.In 1999, he co-founded Ximian with Miguel de Icaza. Natwas a co-founder and chairman of the GNOME Foundation. At Novell, Nat ran engineering for a $110M product and served as CTO of the Linux business.

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.

Edward Kim

Murat Abdrakhmanov is a co-investor at 2C2P. Attended Fuqua Executive school of bussines.

Luke Kupersmith - President & CEO @ Lojistic

Nat Friedman is an entrepreneur and developer. He attended the Massachusetts Institute of Technology. Nat Friedman has two degrees from MIT and has been writing software for 27 years. Nat Friedman is passionate about building products that delight customers with love and attention to detail.In 1999, he co-founded Ximian with Miguel de Icaza. Natwas a co-founder and chairman of the GNOME Foundation. At Novell, Nat ran engineering for a $110M product and served as CTO of the Linux business.

Jon Oringer is the founder and chairman of Shutterstock.

Paul Bohm - Advisory Board Member @ Medal

Eugene Goldberg

Mitchell David Kapor was the founder of Lotus Development Corporation (/organization/lotus-development-corporation) and the designer of Lotus 1-2-3, the "killer application" often credited with making the personal computer ubiquitous in the business world in the 1980s. He is known as an entrepreneur, investor, social activist,and philanthropist.Kapor has been the Chair of the In 1990 Kapor's new company On Technology introduced their new product On Location, an application designed for the Macintosh that contained an indexing system that permit quick retrieval and display of text on the Mac's hard disk. "We think we're being cagey by bringing it out on the Mac first," Kapor said. "It's a richer medium than MS-DOS, and if we have a hot product in the Mac market, it will be easier to get into the PC market."In 2001, Kapor founded the Open Source Applications Foundation, where he is now working on Chandler, a modern personal information manager built using open source tools and methods.In 2006, Kapor founded his latest startup,

Curtis Jackson is professionally known as "50 cent" is the Founder and CEO of SMS Audio. He began as music chart dominance for the rap music phenomenon, has quickly transformed into success in corporate America. 50 Cent is a multi-tiered business mogul to be reckoned with. Recognized as one of the most talented and prolific music artistsof his time, 50 Cent has managed to leverage his star power into record-breaking brand extensions encompassing a broad spectrum of businesses including music ownership, artist management, film production, footwear and apparel, fragrance, video games, publishing, headphones and health drinks, and supplements. With annual sales quickly approaching $300 million from a variety of business interests along with numerous business endeavors on the horizon, 50 Cent has cemented his position in the industry as both a business and entertainment powerhouse.

As the CEO of Climate Transition Swiss AG, I lead a Swiss company that develops and finances green, resilient infrastructure projects across North America, Europe, and Japan. With over 20 years of international business experience, I have a strong track record of delivering sustainable energy solutions that create positive environmental and socialimpact.In addition to my role as CEO, I am also a Lobbyist for Climate Policy at the U.S. House of Representatives, where I focus on influencing environmental initiatives in Japan and Europe. I am passionate about advocating for climate action and fostering global collaboration on this urgent issue. I am also a member of the Forbes Business Council and a regular contributor to their climate section, where I share my insights and expertise on green business and policy.

Tyler is the President and Co-Founder of Unsupervised, which helps Fortune 500 companies become more data-driven by allowing them to analyze infinitely complex data and autonomously discover the biggest opportunities that their analysts and teams should be focused on.Tyler is also an angel investor, with investments in companies like LambdaSchool, Patreon, Lyft (IPO), Loungebuddy (acquired by Amex), and This is L. (acquired by P&G). Prior to Unsupervised, Tyler worked at AngelList, Hired.com, Unified, and Involver.

Cyan Banister is a partner at Founders Fund, where she invests across sectors and stages with a particular interest in augmented reality, fertility, heavily regulated industries and businesses that help people with basic skills find meaningful work. Prior to joining Founders Fund, Cyan was an active angel investor with a portfolio including Uber,Thumbtack, SpaceX, Postmates, EShares, Affirm and Niantic, creator of Pokémon GO. A self-taught engineer and entrepreneur, Cyan has held a number of technical leadership positions throughout her career. As an early employee at IronPort, which was acquired by Cisco, Cyan oversaw support infrastructure and performance for a global customer base. She has a passion for the arts and is a voracious film, documentary and media consumer.

Rayyan Islam is the Co-Founder and General Partner at 8090 Industries. As serial entrepreneur, investor and advisor focused on industrial technology and the low-carbon economy, the companies Rayyan's invested in, sourced and advised have grown to over $8B in market value and have gone to raise further financing from the likes of SequoiaCapital, Union Square Ventures, Lux Capital, Andreessen Horowitz, Venrock, Khosla Ventures and Bill Gates's Breakthrough Energy Ventures. Rayyan previously spent time helping source technology investments for multiple family offices globally, particularly focused towards industrialists based in the Texas and American midwest region and began his VC career at leading East Coast seed stage venture firm, Romulus Capital, where he sourced the firm’s most valued investment, EquipmentShare.A product manager by trade, he worked stints at Spotify, was on the founding team of a subscription airline and began his career supporting M&A transactions for industrial clients at Deloitte as well as economic developments efforts for Deloitte Consulting’s Emerging Markets Practice. Rayyan is a Forbes 30U30 Fellow, served as a United Nations Youth Delegate and is a recipient of the Outstanding Youth Delegate Award.Influenced by his family upbringing in Bangladesh, he personally witnessed energy security issues and the ramifications of climate change at a young age and its impact on communities around the world. Determined to make a serious dent on the issue, Rayyan supports a cadre of climate solutions, drafted policy recommendations to President Joe Biden’s climate transition team and is the editor of Decarbon Weekly, a decarbonization focused newsletter which counts leading climate scientists, members of state and local governments, climate tech founders and ESG focused investors and foundations amongst its subscription base. Rayyan co-founded the industrial decarbonization fund at 8090 Partners, in partnership with prominent industrial and energy families from around the world to invest, support and accelerate breakthrough technology companies decarbonizing every industrial sector driven by radical economic advantages.Rayyan and his work has been featured on Bloomberg, Yahoo Finance, Huffington Post and Forbes.

Venture Capitalist, Managing Partner, Chief Technology Officer

oheila is an entrepreneur with C-team leadership experience on project management and pre-master planning of large-scale smart, resilient green infrastructure projects.

Matt Iannelli previously served Netorian as CEO and Sr. systems engineer for over 11 years.

Craig Winkler Co-founded Australian small business accounting software provider MYOB in 1991. Craig built MYOB to be a popular business tool and brand which, in 2004, merged with Solution 6 to become Australia’s largest IT company. Craig joined Xero's board and became a substantial shareholder in 2009. He now spends the bulk of his timeworking in the philanthropic sector.

John Lefebvre is a mentor at Creative Destruction Lab.

Walter A. Winshall serves as a Principal in Collaborative Seed and Growth Partners, LLC, an investment firm specializing in the commercialization of early-stage technology. Previously, he was a co-founder and Chairman of SilverPlatter International, NV, a company providing information services for libraries, which was acquired by the Dutchpublishing company Wolters Kluwer in 2001. He serves as a member of the Board of Directors of AgaMatrix, Inc., HealthCare IT, Inc., and MOCA Systems, Inc. He graduated from MIT in electrical engineering and from the Harvard Law School. At AgaMatrix, Walt provides guidance in corporate development strategy.

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.

Vinod Khosla is the Partner of Khosla Ventures. Vinod Khosla attended Carnegie Mellon University.

Jordan Levy is a General Partner at SoftBank Capital NY and also Managing Partner of Seed Capital Partners, an early stage venture capital fund that he co-founded in 1999.Prior to co-founding Seed Capital Partners, he was co-founder of ClientLogic and was President, co-CEO and co-Chair of its predecessor companies SOFTBANK Services Group andUCA (now SITEL Worldwide). Previously, Jordan was SVP of Software Etc,now GameStop (NYSE:GME) and prior to that he was also co-founder of Software Distribution Services, now known as Ingram Micro (NYSE:IM).Jordan currently serves on the boards of several technology companies including SocialFlow, Spanfeller Media, Synaptic Digital, COKeM Int. and is Chairman of Synacor (NASDAQ: SYNC). He is a Board Observer of Betaworks and Boxee. Previously, Jordan served on the boards of ZipList (sold to Condé Nast in 2012), OMGPOP (sold to Zynga in 2012), Hyperpublic (sold to Groupon in 2012), and KickApps (sold to KIT digital in 2011). He also is the first non-Native American on the Board of Seneca Holdings Corporation.Jordan is Chair of the Erie Canal Harbor Development Corporation, the State Agency responsible for the redevelopment of Buffalo’s vast historic waterfront. He is also on the Advisory Board for NYC Seed and a trustee of the University of Buffalo Foundation. He served for nine years as a trustee of the Albright Knox Art Gallery and is a past President of the Jewish Federation of Greater Buffalo.

Ariel Poler is the Co-Founder of Reveri Health. Ariel is an Internet entrepreneur, mentor, and investor. He was the founder of IPRO, the first web analytics company, and of Topica, one of the first email communities. Ariel was a board member of Kana Software, LinkExchange, Odeo, LOLapps, and StumbleUpon. He currently serves on the boards of FreedomFinancial Network, MixTent, Strava, and Scan Inc. Ariel’s angel investments include AdMob, Flixster, Slideshare, Xobni, RockYou, and Outright, BrightRoll, Instructables, Causes, Kongregate and NexTag. Ariel holds a B.S. in Mathematics with Computer Science from MIT and an MBA from Stanford University. He is originally from Venezuela and lives in San Francisco with his wife and three children.

Matthew Palevsky is the President & Resident Director at Upaya Zen Center.

Passionate problem solver specializing in blockchain, cryptocurrency, health & wellness tech, biohacking.Product manager, marketer, & executive with a proven ability to recognize and capitalize on commercial opportunities. Conceived, launched and successfully exited three companies. 13+ years of experience in consumer product development& growth marketing.

Vladimir Belkovich is a CEO at NPO Nauka.

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.

Ivanka Trump

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.

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

Tom Chi is a Senior Principal Designer at Yahoo! and has worked as each of Designer, Product Manager, Developer, and Consultant. He was a key design driver on many products, including Yahoo Answers, the new Yahoo Search, Microsoft Outlook, and several other enterprise applications. Tom is a co-creator of OK/Cancel, and has published over200 comic strips about user experience in a variety of online and printed publications.

Bhavik Bajaj

Kerim Baran is the Founder of SolarAcademy. He attended Harvard Business School.

Ramez Naam is Chief Futurist and Partner at Prime Movers Lab.

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

Bootstrapped Debt Financing

James Sowers is a Korean-American businessman and philanthropist. He is a former singer/songwriter who was abandoned at birth who had his music career tragically ended by a reckless driver in a car accident. He is currently a Director @ the GreaterGoodSociety . James is An experienced ICO and blockchain advisor.He has angel invested in over 40startups and initial coin offerings. He is also a contributor to Known Blockchain publications and has been featured in other well known financial publications.James has already made a very positive impact on the project, his vision and professionalism along with his great personality traits complement the SafeCrypt.io team in a very positive way.

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.

Eminem was born Marshall Bruce Mathers III in St. Joseph, Missouri, to Deborah R. (Nelson) and Marshall Bruce Mathers, Jr., who were in a band together, Daddy Warbucks. He is of English, as well as some German, Scottish, and Swiss-German, ancestry. Marshall spent his early childhood being shoved back and forth from Kansas City and Detroit. Hesettled on the Eastside of Detroit when he was 12. Switching schools every two to three months made it difficult to make friends, graduate and to stay out of trouble. Marshall attended Lincoln High School in Warren, Michigan, 1986-1989.Being a rap fan for most of his life, Marshall began rapping at the early age of 4. Rhyming words together, battling schoolmates in the lunchroom brought joy to what was otherwise a painful existence. At the age of 14, he began to get very serious about his rapping but it wasn't until he was 17 that he actually made a name for himself, becoming M&M, which he would later respell as "Eminem". Being rejected by most fellow rappers because of his race, Marshall grew an anger that flows through his music to this day. After failing the 9th grade for three times in a row, he quit school, but has remarked that he does not consider himself stupid and does not advise that people should follow his example. He says that it just wasn't for him. Forcing himself on radio shows, freestyle battles, Marshall threw himself head first into the rap game, where he was swallowed up most of the time. His very first album was titled "Infinite" and, while the album sold less than a thousand copies, it was the gearing up stages for the rapper who became a millionaire. It was then that his daughter, Hailie Jade Scott, was born on December 25th of 1995 with long time girlfriend Kim Scott.Having nothing to lose at all, flat broke and not knowing where he would be living the next week, Marshall set out to rant about life in general, the set quickly caught the ear of hip-hop's difficult-to-please underground. What came out of this was the Slim Shady EP, the early work for the later Dr. Dre revised Slim Shady LP. Down to nearly his last dime, he went into the 1997 Rap Olympics in Los Angeles, basically hoping to win the $1,500 cash prize which he badly needed. After battling for an hour and throwing back every race diss thrown at him, Marshall made it to second place losing in a slip up. Furious that he had lost, Marshall didn't even notice that he had been spotted. In the crowd were a few producers from Interscope, and they were handed a copy of the "Infinite" tape by way of a demo.Dr. Dre got to hear it and eventually tracked him down. The two instantly hit it off, recording four songs in their first six hours of working - three which made it to his first LP. After the album was finished, Dr. Dre asked Marshall to come work with him on his new album. He helped produce several tracks and was on the best songs of the album. Now officially making it, Marshall and Dre set to make his second LP. The album became the Marshall Mathers LP and won 3 Grammies and was the first rap album ever to be nominated "Album of the Year", selling more than 8 million records in the United States alone. He also stunned critics when he shot down all homophobic remarks by performing "Stan" with Elton John. Eminem made a movie, 8 Mile (2002). Though 2001 was a rough year for the rapper, being charged with weapon offenses, divorcing his wife, and almost going to prison, Marshall has explained his life in one word: "Claimer".