Family offices have become a significant source of capital for startups, funds and private deals. But "family office" covers very different organisations. A single-family office serves one wealthy family. A multi-family office serves several families under one roof. The difference shapes how they invest, how quickly they decide and how founders should approach them.
This guide compares the two models and explains what each means for anyone raising capital.
1. Single-Family Offices
- Serve one family, managing its investments, and often its tax, legal, philanthropic and personal affairs.
- Full control and privacy. The family sets its own strategy and priorities.
- High cost. Running a dedicated team is expensive, so single-family offices are usually established by families with very significant wealth.
- Flexible mandates, shaped by the family's interests, history and risk appetite.
2. Multi-Family Offices
- Serve multiple families, sharing investment teams, research and services.
- Lower cost per family, making professional wealth management accessible to families with less wealth.
- More standardised processes, with investment committees and formal policies.
- Fiduciary and regulatory obligations, often operating as registered advisers.
- Pooled opportunities, sometimes offering co-investments or funds across client families.
3. Deal Appetite Compared
- Decision speed — Single-Family Office: Can be fast, if the principal is engaged. Multi-Family Office: Usually slower, with committee processes.
- Direct deals — Single-Family Office: Common, especially where the family has expertise. Multi-Family Office: Less common; more fund and pooled investments.
- Cheque size — Single-Family Office: Varies widely; can be large and concentrated. Multi-Family Office: Often aggregated across families.
- Sector focus — Single-Family Office: Often linked to the family's business or interests. Multi-Family Office: Broader, diversified across client needs.
- Involvement — Single-Family Office: Can be hands-on, including board roles. Multi-Family Office: Usually more passive.
- Due diligence — Single-Family Office: Varies; may rely on trusted advisers. Multi-Family Office: More formal and documented.
For more on family office investing, see how family offices make direct investments and direct deals vs. fund commitments.
4. How to Approach Each
Single-family offices
- Find a trusted introduction; many avoid cold outreach.
- Understand the family's interests, including its original business and values.
- Identify the decision-maker, whether a principal, chief investment officer or next-generation member. See next-gen family office principals.
- Offer a relationship, not just a transaction.
Multi-family offices
- Fit their investment process and prepare thorough materials.
- Expect formal due diligence and committee review.
- Consider pooled structures, since they may invest across several client families.
- Show risk management and alignment with fiduciary standards.
5. What the Process Can Look Like
The structural differences show up most clearly in how a deal moves from first meeting to signed commitment. The two paths below are illustrative, not typical timelines for any particular office.
For example, a founder raising a $3M seed round might meet a single-family office through a mutual contact. After two conversations with the principal and a call with the family’s trusted lawyer, the office could commit within a few weeks — or decline just as quickly if the principal’s interest fades. Much depends on one person’s conviction and availability.
The same founder pitching a multi-family office might first meet an investment analyst, then submit a data room, answer a written question list, present to an investment committee, and wait while the office decides how to allocate the opportunity across client families. The process takes longer, but once approved, the decision is usually well documented and less likely to reverse.
6. Preparing Your Materials
Some preparation works for both, but each type responds to different emphasis:
- For single-family offices: a concise story that connects your business to the family’s interests or expertise, a clear view of the founder team, and openness about how involved the family could be.
- For multi-family offices: a well-organised data room, clear risk factors, governance and reporting plans, and terms that are easy to explain to several client families.
- For both: realistic projections, a clean cap table and a straightforward explanation of how you will use the money.
7. Common Mistakes to Avoid
- Treating all family offices the same. A generic pitch rarely fits either model.
- Pushing for speed with a committee. Pressure tactics can stall a formal process rather than accelerate it.
- Ignoring the family’s privacy. Do not name a family office as an investor or prospect without permission.
- Going quiet after a “not now”. Family offices invest over long periods, and many revisit companies they met earlier.
Frequently Asked Questions
How much wealth does a family need for a single-family office?
There is no fixed threshold, but costs mean they are typically established by families with very significant wealth. Many others use multi-family offices.
Which type invests more in startups?
Single-family offices are often more likely to make direct startup investments, especially where the family has relevant expertise.
Are family offices regulated?
Single-family offices serving only one family are often exempt from some adviser registration requirements in the US, while many multi-family offices are registered advisers.
How do I find family office investors?
Through trusted introductions, investor networks, private events and advisers who work with families.
The Bottom Line
Single-family offices offer speed, flexibility and hands-on involvement; multi-family offices offer process, scale and diversified capital. Founders and fund managers who understand the difference, and tailor their approach accordingly, will find both valuable partners.
Global Capital Network connects founders with single and multi-family offices through our events and private investor dinners. Get in touch to learn more.
This article is general information, not investment or legal advice.
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