A family office manages the fortune of an ultra-high-net-worth family — investments, tax planning, estate strategy, and often philanthropy. For founders, family offices are an increasingly important source of startup capital that behaves differently from institutional VC.
Types
- Single-family office (SFO) — serves one family; typically formed above ~$100M–$250M in assets
- Multi-family office (MFO) — serves several families, sharing infrastructure costs
How family offices invest in startups
1. As LPs — committing capital to venture funds
2. Direct investments — writing checks into startups, from $100K angel-style checks to $10M+ growth rounds
3. Co-investments — joining rounds alongside VC funds they back
How they differ from VCs
- Patient capital — no 10-year fund clock; some genuinely hold for decades
- Flexible structures — comfortable with revenue-based deals, minority stakes, dividends, and unconventional terms VCs avoid
- Thesis-driven by family history — a family that built a logistics business often invests in supply-chain startups where its operating knowledge adds value
- Lower profile — many avoid publicity; finding them requires networks, conferences, or databases rather than Crunchbase
- Slower, relationship-first process — decisions can involve family principals, not just investment staff
Approaching family offices
Lead with alignment to the family's industry roots, emphasize durability of the business over blitzscaling narratives, and expect diligence on character and references to weigh as much as metrics. A warm introduction matters even more than it does with VCs.