David Geffen is an American entertainment mogul, record‑label founder, and philanthropist. He launched Asylum Records (1970), Geffen Records (1980), DGC Records (1990), and co‑founded DreamWorks SKG in 1994. His music and film empire helped define modern pop culture and Hollywood.

David A. Duffield is an American enterprise software pioneer. He co-founded PeopleSoft in 1987 and in 2005 co-founded Workday—both revolutionized HR and financial management systems. He later founded Ridgeline Apps, serving investment managers. At age 84, he’s also a philanthropist behind Maddie’s Fund and the Dave & Cheryl Duffield Foundation, with gifts exceeding $450 million.  

David Booth is the co-founder and Executive Chairman of Dimensional Fund Advisors, the global investment firm he launched in 1981 after studying under Eugene Fama at the University of Chicago. His firm pioneered factor-based investing and now manages over $800 billion in AUM. A major philanthropist, he gifted $300 million to name Chicago Booth School of Business. 

Daniel Sundheim is the American billionaire founder and Chief Investment Officer of D1 Capital Partners, a high-conviction global investment firm launched in 2018. A former CIO at Viking Global with 15 years of experience, he built D1 into a multi‑billion‑dollar firm investing across public and private markets—including leading positions in Instacart and SpaceX. He also serves on boards of MoMA, NYU Langone, and Columbia Grammar.

Daniel Snyder is the American entrepreneur who founded Snyder Communications and later owned the Washington Commanders (NFL) from 1999 to 2023. He purchased the team for $800 million and controversially sold it for a record $6.05 billion amid investigations, fan backlash, and workplace misconduct scandals that ultimately led to his forced exit. He now resides in London and remains a polarizing sports legacy figure

Daniel Pritzker is an American billionaire heir, musician, and filmmaker from the prominent Pritzker family, which founded Hyatt Hotels. A Tufts and Northwestern Law graduate, he co-founded the band Sonia Dada and directed the feature films Louis (2010) and Bolden (2019), a passion project depicting jazz pioneer Buddy Bolden. He is also a trustee of the Jay Pritzker Foundation and active in educational philanthropy.  

Daniel Och is the American billionaire founder of Och‑Ziff Capital Management (rebranded as Sculptor Capital in 2019). A Wharton alumnus and former Goldman Sachs equities trader, he built Och‑Ziff into a major hedge fund managing tens of billions before stepping down in 2019. He now runs Willoughby Capital, a family office investing in tech startups like Robinhood, Coinbase, and Instacart, while leading major philanthropic initiatives. 

Daniel Lubetzky is a Mexican‑American billionaire entrepreneur, author, and social innovator. He founded KIND Snacks in 2003 and grew it into a multibillion-dollar global brand known for purpose-driven business. Before KIND, he launched PeaceWorks and the OneVoice Movement to foster economic cooperation in the Middle East. A Stanford JD and Trinity University economics alum, he is also a major philanthropic leader and former “Shark Tank” investor turned full-time Shark

Daniel Loeb is an American investor, hedge‑fund manager, and founder & CEO of Third Point LLC, a New York‑based activist investment firm launched in 1995 with ~$3–4 million in capital. Renowned for his scathing public letters and event‑driven strategy, he has built Third Point into a multi‑billion‑dollar fund and a major force in corporate turnarounds and governance reform. He is also a philanthropist active in education and civil‑rights causes.

Daniel D’Aniello is an American business leader and co‑founder of The Carlyle Group, one of the world’s largest private equity firms. A Syracuse and Harvard University alumnus, he served as vice president at Marriott before launching Carlyle in 1987. A decorated U.S. Navy officer, D’Aniello stepped down as chair in 2018 and now emphasizes philanthropy in veterans’ affairs and higher education. 

Craig Newmark is the American founder of Craigslist, the influential online classifieds platform he started in 1995. With degrees in computing and information sciences from Case Western Reserve University, Newmark built Craigslist into a global service, stepping down as CEO in 2000 but continuing to support users and guide customer service. Since 2016, he has focused full-time on Craig Newmark Philanthropies, supporting ethics in journalism, veterans’ cybersecurity, and election integrity.

Clifford “Cliff” Asness is the co‑founder, Managing Principal & Chief Investment Officer of AQR Capital Management, a quantitative investment firm managing roughly $120 billion in assets. A PhD from the University of Chicago and former Goldman Sachs quant strategist, he popularized factor-based investing and author of influential research on value, momentum, and market efficiency.

Chris Sacca is an American investor, entrepreneur, and former Google executive who founded Lowercase Capital, backing early-stage winners like Twitter, Uber, Instagram, Twilio, Stripe, and Kickstarter. After retiring from tech investing in 2017, he returned in 2021 through Lowercarbon Capital, channeling capital into startups focused on climate solutions and energy innovation.

J. Christopher “Chris” Reyes is the American billionaire co‑chair and elder founding brother of Reyes Holdings, a $40 billion family-run food and beverage distribution giant. He teamed with his brother Jude to grow a single Schlitz beer distributor in 1976 into the country’s largest McDonald’s and beverage logistics provider.

Charles Zegar is an American technologist and billionaire investor who co-founded Bloomberg L.P. in 1982 alongside Michael Bloomberg, Tom Secunda, and Duncan MacMillan. As lead software architect, he built the original infrastructure for what became the Bloomberg Terminal—a core engine of global financial markets. Today he remains a discreet yet influential philanthropist through the Zegar Family Foundation. 

Charles Simonyi is a Hungarian‑American software pioneer, former Microsoft distinguished engineer, and space tourist. He architected the first versions of Microsoft Word and Excel, co-founded Intentional Software, and became the only private citizen to fund and complete two separate missions to the International Space Station—logging over 26 days in orbit. His tech and philanthropic impact includes endowed science professorships and arts funding at top institutions.

Charles R. Schwab is the pioneering founder, longtime CEO, and current Co‑Chairman of The Charles Schwab Corporation, which he started in 1971. Renowned for revolutionizing the discount brokerage industry—offering low-cost, tech-driven trading and eliminating commissions—he built one of the largest global investment firms managing over $10 trillion in client assets and serving more than 32 million accounts. Semi-retiring in 2008, he remains the largest individual shareholder and leads the Schwab Foundation’s education and dyslexia initiatives. 

Charles S. Cohen is a billionaire real estate developer and film industry entrepreneur who transformed Cohen Brothers Realty—founded by his family—into a 12 million sq ft commercial portfolio spanning Manhattan, Los Angeles, Houston, and Florida. He also founded the Cohen Media Group in 2008 to preserve and distribute independent and French films, eventually acquiring iconic arthouse theater chains like Landmark Theatres and Curzon Cinemas.

Charles Butt is the chairman and CEO of H‑E‑B, the San Antonio‑based supermarket chain founded by his grandmother in 1905. Taking over leadership in 1971, he transformed H‑E‑B into a $39–42 billion private company with over 400 stores across Texas and Mexico. A Wharton and Harvard MBA alum, Butt is also a generous philanthropist—pledging more than $150 million to education initiatives and public school teachers, and earning Mexico’s Aztec Eagle Medal for cross-border giving.

Charles Brandes is an American billionaire investor and value‑investing legend who founded Brandes Investment Partners in 1974. A protégé of Benjamin Graham, he built the firm into a global value-management powerhouse with upwards of $95 billion in assets at peak. Brandes authored Value Investing Today and remains deeply philanthropic, supporting causes such as the Salk Institute and diabetes research institutes.