Single family office (SFO) and multi family office (MFO) sound like a technicality. If you plan to raise capital from one, the difference changes everything about how you should approach them.
The basic definitions
A single family office manages the capital of one wealthy family or individual. A multi family office manages the capital of several wealthy families. Many MFOs started life as a single family office and then took on additional families to share the cost of a professional team.
In our database of 2,700 active family offices, single family offices dominate: 73% of listings, against 19% multi family offices. The rest are family-owned private investment firms and single-family venture vehicles that behave like family offices in practice.
How they differ in practice
Who decides
In an SFO, the decision path is short. Often it runs through the principal, a family member, or a CIO the family trusts personally. Conviction can beat process: if the principal believes in you, a deal can close remarkably fast.
In an MFO, you are dealing with an organization. There are committees, allocations, and client mandates. Decisions are slower and more standardized, but also more predictable.
What they invest in
SFOs have full freedom. One family's office might do venture deals, another might only buy real estate, a third might acquire small businesses. Their history shapes their appetite: wealth built in real estate tends to stay close to real estate, and founders who sold a tech company often back other founders.
MFOs must serve several families with different risk profiles, so they lean toward diversified portfolios and away from exotic, concentrated bets. Some do direct deals, but the bar is higher and the process longer.
Visibility
MFOs market themselves because they need client families, so they are easier to find. SFOs answer to nobody and often prefer to stay invisible, with neutral names and minimal websites. This is why SFOs are both the most attractive targets for capital raisers and the hardest to identify.
What this means if you are raising capital
- Pitching an SFO? Research the family. Their industry roots, their region, their existing deals. Personalize heavily and aim for a warm introduction to the named decision maker. Speed and conviction are on your side.
- Pitching an MFO? Act like you are pitching a small institution. Expect diligence, structure, and questions about track record and reporting. Do not expect them to fall in love.
- Filter before you reach out. Approaching an MFO with a concentrated single-deal pitch, or an SFO with a generic institutional deck, wastes everyone's time.
Our database of active family offices labels the type for every office, so you can filter SFOs from MFOs in one click, along with each office's investment domains and top decision makers. For the broader playbook, read our guide on how to raise capital from family offices.
For the data behind these numbers, see our family office statistics report, and for help choosing a data provider, our comparison of family office databases.