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 Dolby is the San Francisco–based CEO and founder of Dolby Family Ventures, the Dolby Laboratories’ family-backed early-stage VC firm. Guided by Ray Dolby’s legacy, he invests in groundbreaking technology across biotech, digital media, aerospace, and Alzheimer’s research. He also serves on multiple boards including Dolby Labs and aligns venture capital with social impact.

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. 

David Blitzer is an American investor and sports team owner. As Blackstone’s Chairman of Tactical Opportunities, he oversees global investing across asset classes. In 2011, he co-founded Harris Blitzer Sports & Entertainment (HBSE), the first entity to hold equity in all five major U.S. men’s leagues (NBA, NHL, NFL, MLB, MLS). His portfolio includes the Philadelphia 76ers, New Jersey Devils, Cleveland Guardians, Real Salt Lake (now minority stake), and the Washington Commanders.

David Baszucki s a Canadian‑American entrepreneur, software engineer, and inventor. He co-founded Roblox Corporation in 2004 and has led as CEO since its 2006 launch. Previously, he founded Knowledge Revolution—creator of Interactive Physics, sold to MSC Software—and later funded early startups like Friendster. A pioneer of user‑generated content and the metaverse, Baszucki also champions research via the Baszucki Brain Research Fund. 

Darwin Deason is an American billionaire entrepreneur and founder of Affiliated Computer Services (ACS). Under his leadership, ACS became a global outsourcing powerhouse before being sold to Xerox for $6.4 billion in 2010. After the sale, Deason emerged as Xerox’s largest individual shareholder (~12%). He is also a high-profile Republican political donor and owner of the mega-yacht Apogee and an opulent La Jolla estate called “The Sand Castle.” 

Danny Wegman is the third‑generation leader and longtime chairman of Wegmans Food Markets, the privately held grocery chain founded in Rochester, New York, in 1916. He succeeded his father Robert as CEO in 2005, building the retail brand into a beloved regional empire of over 110 stores across 10 states.

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 J. Hirschfeld is an American billionaire and long-time chairman of The Buckle, Inc., the Nebraska-based retailer founded by his family. Owning roughly one-third of the company, he oversees a chain of over 440 apparel stores across 42 U.S. states and has transformed it into a durable casusal-fashion leader. His family legacy dates back to one of the original roots of denim retail.

Daniel Ek is the Swedish-born co-founder, Chairman & CEO of Spotify, the global streaming platform launched in 2006. A tech prodigy who sold his first startup at age 23, Ek scaled Spotify to over 276 million premium subscribers and 696 million total users by mid‑2025. He also chairs Neko Health and leads European moonshot investments through Prima Materia. 

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. 

Dan (Daniel Truett) Cathy is the American billionaire Chairman of Chick‑fil‑A—the fast-food giant founded by his father, S. Truett Cathy. He served as CEO from 2013 to 2021, scaling annual revenues from about $5 billion to over $16 billion while expanding the chain to over 3,000 U.S. and Canadian restaurants. He remains deeply involved in the family-run WinShape Foundation.

Dan H. Wilks is an American petroleum entrepreneur who co-founded Frac Tech in 2002 with his brother Farris. They grew the company from their modest beginnings in Cisco, Texas, and sold their 70% interest for $3.5 billion in 2011. Now among the wealthiest Texans, Dan invests in land and energy and is a major conservative political donor. 

Dan Kurzius is the American co-founder and Chief Customer Officer of Mailchimp. A former web developer and Mailchimp’s first support agent, he built the company’s support organization and champions user advocacy across product and data teams. Known for his focus on customer experience and corporate citizenship, he avoids venture funding and has helped build Mailchimp into a multi-billion‑dollar SaaS success. 

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.