US Family Offices Worth Knowing
Family offices now steward trillions in private capital and are increasingly active across venture, private equity, and private credit. For founders raising in 2026, they are a large and often overlooked pool of long horizon money. Most operate quietly and rarely publish what they hold.
This page maps prominent US family offices, the families or principals behind them, and what each one actually invests in. It focuses on single family offices and family controlled investment firms that shape private markets. Every entry has been checked against public sources, so the names and mappings are accurate.
Knowing who allocates capital only helps if the right investors can find you. Founders who keep an investor ready profile on Backrr make it easier for aligned investors to understand their stage, sector, and traction at a glance. That clarity is what turns a name on a list into a real conversation.
Quick Summary:
This guide lists 22 prominent US family offices for founders and fundraisers, including the principal or family behind each one and its investment focus. It covers single family offices and family controlled investment firms active across venture, private equity, real assets, and private credit. Every entry is verified against public sources and reflects mappings confirmed in August 2026.
The List - 51 Verified US Family Offices
| # | Family Office | Principal / Family | Investment Focus | Founder Angle |
|---|---|---|---|---|
| 1 | Cascade Investment | Bill Gates | Public equities, private companies, real assets, long horizon | Study its patient multi asset allocation; not a startup funding route. |
| 2 | Bezos Expeditions | Jeff Bezos | Frontier tech, space, biotech, early and growth ventures | Track its deep tech and space bets for co-investor signals. |
| 3 | Emerson Collective | Laurene Powell Jobs | Climate, education, health, media, impact ventures | Pitch only mission aligned climate, education, or health startups with US traction. |
| 4 | Walton Enterprises | Walton family | Retail holding, banking, diversified long term assets | Read as patient family capital; direct early stage access is limited. |
| 5 | Koch Investments Group | Koch family | Venture via KDT, private equity, real estate, credit | Approach KDT for growth stage deeptech; it invests seed to late, US led. |
| 6 | Pritzker Private Capital | Pritzker family | Mid market buyouts, family owned company acquisitions | Note it buys established companies, not early stage startups. |
| 7 | Soros Fund Management | George Soros | Public markets, macro, private and credit strategies | Read as macro and public capital; rarely an early stage route. |
| 8 | Icahn Enterprises | Carl Icahn | Activist public equity, controlled industrial holdings | Skip for venture; this is activist public market capital. |
| 9 | Bayshore Global Management | Sergey Brin | Deep tech, science, diversified private and public bets | Track its science and deeptech interests; access is relationship gated. |
| 10 | DFO Management (formerly MSD Capital) | Michael Dell | Buyouts, growth equity, real estate, credit, public equities | Watch its buyout and growth deals; not a Pre-Seed channel. |
| 11 | Ziff Brothers Investments | Ziff family | Multi asset investing across public and private markets | Read as diversified family capital; direct startup access is narrow. |
| 12 | Hillspire | Eric Schmidt | AI, science, deep tech, diversified holdings | Follow its AI and science bets; Schmidt also backs startups via other vehicles. |
| 13 | Thiel Capital | Peter Thiel | Concentrated tech, defense, biotech, financial infrastructure | Understand its concentrated deeptech thesis before seeking any network intro. |
| 14 | Darco Capital | David Adelman | Climate, fintech, sports, consumer, deep tech ventures | Pitch if you fit its sectors and have real US footing; it backs founders. |
| 15 | Waycrosse | Cargill and MacMillan families | Agribusiness rooted private equity, credit, real assets | Read as agribusiness linked PE and credit; not an early stage route. |
| 16 | S-Cubed Capital | Mark Stevens (ex Sequoia) | Venture funds, direct startups, real estate, public markets | Note its Sequoia roots; it backs funds and select US startups. |
| 17 | Sobrato Capital | Sobrato family | Fund commitments, first time funds, direct deals, real estate | Study its first time fund backing pattern for LP signals. |
| 18 | Tulco and TWG Global | Thomas Tull | AI applied to traditional industries, growth stage platforms | Watch its data and AI plays; growth stage and operator heavy. |
| 19 | The Raptor Group | Jim Pallotta | Early and growth tech, fintech, consumer, sports, media | Approach for early to growth tech with global upside; it backs founders. |
| 20 | Mousse Partners | Wertheimer family (Chanel) | Private equity, venture, real assets, consumer, public markets | Read as discreet long horizon capital with a consumer lean. |
| 21 | The Cynosure Group | Eccles family | Long term private equity, minority positions, co-investment | Note its co-investor model; it takes influential minority stakes. |
| 22 | Duchossois Capital Management | Duchossois family | Direct company investments, real estate, public securities, funds | Read as mid market direct investing; profitable companies, not seed. |
| 23 | Willett Advisors | Michael Bloomberg | Public equities, private equity, growth, venture, real estate | Track its growth and venture allocations; institutional style, relationship gated. |
| 24 | Duquesne Family Office | Stanley Druckenmiller | Macro public markets, technology, select growth stage rounds | Watch its concentrated tech bets; it joins select growth rounds directly. |
| 25 | Cohen Private Ventures | Steve Cohen | Direct private equity, growth equity, venture, credit, real estate | Note it invests across stages and sectors; secretive and control oriented. |
| 26 | Willoughby Capital | Daniel Och | Direct private investments, growth equity, SPAC vehicles | Read as opportunistic private investing; deal by deal, not thesis driven. |
| 27 | Omega Family Office | Leon Cooperman | Public equities, credit, concentrated value positions | Read as public market value investing; not an early stage route. |
| 28 | MacAndrews & Forbes | Ronald Perelman | Controlling stakes in established public and private companies | Note it buys and controls mature companies, not startups. |
| 29 | Access Industries | Len Blavatnik | Media, entertainment, tech, biotech, chemicals, real estate | Approach for growth stage media, tech, or biotech with real scale. |
| 30 | Appaloosa Management | David Tepper | Public equities, distressed debt, opportunistic macro positions | Skip for venture; this is public market and distressed capital. |
| 31 | Lawrence Investments | Larry Ellison | Enterprise tech, life sciences, media, real estate, concentrated bets | Study its concentrated thematic bets; founder access is relationship gated. |
| 32 | Dalio Family Office | Ray Dalio | Public markets, AI, fintech, climate, ocean, venture | Watch its growing AI and climate venture book; macro driven. |
| 33 | TIME Ventures | Marc Benioff | Early and growth stage technology, enterprise software, climate | Pitch if you fit enterprise or climate tech; it backs founders directly. |
| 34 | Excession | Elon Musk | Musk's own companies, Tesla, SpaceX, xAI, Neuralink | Read as a captive vehicle for Musk's ventures; not an external investor. |
| 35 | Paulson & Co. | John Paulson | Public equities, gold, real estate, merger arbitrage, event driven | Read as public market and event driven capital; not a startup route. |
| 36 | Euclidean Capital | Simons family | Venture capital, life sciences, deep tech, real estate | Watch its deep tech and life sciences bets; concentrated and science led. |
| 37 | CAM Capital | Bruce Kovner | Multi asset macro, public markets, private investments | Read as macro driven multi asset investing; not an early stage route. |
| 38 | Bren Investments | Donald Bren | Real estate via Irvine Company, diversified long term holdings | Read as a real estate fortune; not a startup route. |
| 39 | AMB Group | Arthur Blank | Sports, entertainment, real estate, hospitality, ranching | Note it centers on sports and real estate; not a startup channel. |
| 40 | Equity Group Investments | Sam Zell family | Real estate, private equity, distressed, infrastructure, public equities | Note its control oriented buyouts and real estate; not early stage. |
| 41 | The Kraft Group | Robert Kraft | Sports, paper and packaging, real estate, private equity, venture | Approach for its direct venture bets; low profile and relationship driven. |
| 42 | WndrCo | Jeffrey Katzenberg | Consumer tech, cybersecurity, future of work, developer infrastructure | Pitch if you fit its tech themes; it backs and builds companies. |
| 43 | AME Cloud Ventures | Jerry Yang | Data infrastructure, deep tech, seed to growth technology | Pitch data and deep tech startups; it invests seed to growth. |
| 44 | Declaration Capital | David Rubenstein | Venture, growth equity, family owned businesses | Pitch venture and growth stage; it backs founders and family firms. |
| 45 | Hunt Investment Group | Ray L. Hunt family | Energy, real estate, private equity, select co-investments | Read as energy and real estate capital; Texas rooted, not tech seed. |
| 46 | RSE Ventures | Stephen Ross | Technology, sports, entertainment, consumer, incubation | Approach for consumer, sports, and tech; it builds and backs early. |
| 47 | Iconiq Capital | Mark Zuckerberg and tech principals | Growth equity, venture, private equity, real estate | Approach for growth and late venture; institutional scale, hard to access. |
| 48 | Cox Family Office | Cox family | Media, communications, automotive, diversified family holdings | Read as a family holding across media; not a startup route. |
| 49 | Perot Investments (Petrus) | Perot family | Technology, real estate, long term operating company partnerships | Approach for growth stage partnerships; it backs established owners. |
| 50 | Devonshire Investors | Johnson family (Fidelity) | Venture, private equity, real assets, tech, life sciences | Pitch tech or life sciences; patient capital with Fidelity dealflow. |
| 51 | Omidyar Network | Pierre Omidyar | Impact investing, fintech, tech for good, nonprofits | Pitch mission driven for profit ventures; impact and access focused. |
Read The Landscape Before Pitching
Most US family offices on this list are not a direct route for a first time founder, and that is worth knowing before you spend weeks chasing them. The real value is understanding how family offices allocate capital and which ones back early stage companies at all. If you are mapping investors closer to home, the Indian family office database and the guide to global family offices for Indian startups are far more actionable starting points, alongside the list of active angel investors in India.
Whether you approach a family office, an angel, or an institutional fund, the work is the same. Keep your raise organized and your story clear. Build your Backrr profile so the investors who fit your stage can find and understand you fast. The list gets you the names. Your profile is what gets you the meeting.
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