The most cited recent count comes from Deloitte, which identified about 8,030 single family offices worldwide in 2024 and projects 10,720 by 2030, with roughly 3,180 of them in North America. Other published estimates run anywhere from 7,000 to 20,000, and our own human-verified database provides a hard floor: more than 2,700 family offices that are demonstrably active investors, 51% of them in the USA.
If you are researching family offices because you plan to raise capital from them, the honest answer to "how many are there" is a range, and understanding why it is a range will make you a sharper fundraiser. This article walks through the major published estimates, explains why they disagree, and shows what a verified count looks like in practice.
What the major reports estimate
Here are the most widely referenced figures, with years, so you can compare like with like.
Deloitte (2024): 8,030 single family offices worldwide. Deloitte Private's report Defining the Family Office Landscape counted 8,030 single family offices in 2024, up 31% from 6,130 in 2019, and projects 10,720 by 2030. Deloitte puts their combined assets under management at about US$3.1 trillion in 2024, heading toward US$5.4 trillion by 2030. The regional split: North America 3,180, Asia Pacific 2,290, Europe 2,020, Middle East 290, South America 190, Africa 60.
Campden Research (2019): about 7,300 single family offices. Campden estimated roughly 7,300 single family offices globally in 2019, a 38% increase over the prior two years, with the US housing over 3,100 of them, as summarized in this Institute for Policy Studies primer on family offices.
EY (2016): at least 10,000 single family offices. EY's family office guide estimated at least 10,000 single family offices globally as early as 2016, with more than half founded in the preceding 15 years. That figure still circulates widely, and industry roundups of market-size estimates note that published counts from major research firms have ranged from about 3,500 to 20,000 depending on definitions.
US-only estimates: from about 3,000 to more than 10,000. Depending on who is counting and what qualifies, published US figures have ranged from the low thousands to well past 10,000 once embedded and informal offices are included.
Put side by side, the pattern is clear: serious researchers agree the population is in the high thousands globally, agree it is growing quickly, and disagree on almost everything else. For a fuller set of benchmarks, see our roundup of family office statistics.
Why the counts vary so much
Three structural reasons explain most of the spread between estimates.
1. There is no agreed definition
Before you can count family offices, you have to decide what one is. A family office can be a fully staffed single family office (SFO) with an investment team, a multi family office (MFO) serving several families, an "embedded" office run from inside the family's operating business, or a lean virtual setup built around outsourced advisors. Deloitte counts single family offices. EY's larger figure sweeps in more of the informal and embedded structures. Some surveys count MFOs as one office even when they serve dozens of families. Each choice moves the total by thousands. Our guide to the single family office vs multi family office distinction explains why the line matters for fundraisers as well as statisticians.
2. There is no registration requirement
Family offices in the US are largely exempt from registering as investment advisers. Under the SEC's Family Office Rule, adopted in 2011 under the Dodd-Frank Act, an office that serves a single family and meets certain conditions stays outside Investment Advisers Act registration. That is by design: families wanted privacy, and the rule preserves it. The practical consequence is that no government list of family offices exists anywhere. Every published count is an estimate built from surveys, news coverage, and proprietary research rather than from an official register.
3. Public visibility starts at $100 million in 13F securities
The main public window into family office portfolios is SEC Form 13F, which institutional investment managers must file once they exercise discretion over $100 million or more in qualifying US-listed securities. Offices below that threshold, offices that hold mostly private assets, and offices structured to keep discretion with outside managers never show up. In our database, giant family offices (13F filers and billionaire families) make up 13% of the total, which gives you a sense of how much of the market sits below the public radar. The visible giants are covered in our list of the largest family offices in the world.
There is one more quiet driver of variance: survey extrapolation. Most headline numbers start from a few hundred survey responses and scale up using wealth data. Small changes in assumptions produce swings of thousands of offices.
A verified floor: what we can actually count
Estimates answer "how many might exist." A different and arguably more useful question for a capital raiser is "how many can you actually identify, verify, and contact." That is a counting exercise rather than a modeling exercise, and it produces a floor rather than a ceiling.
Our database contains more than 2,700 active family offices, and every line has passed a human review that confirms the office exists, invests, and can be reached. From that verified base:
- 51% are in the USA and about 29% are in Europe
- 74% are single family offices and 20% are multi family offices
- 13% are giant family offices (13F filers or billionaire families)
Read together with the survey numbers, this suggests a sensible mental model. Somewhere around 8,000 to 10,000 single family offices likely exist worldwide. A subset of those are active, findable, external-facing investors, and more than 2,700 of them are verified in our database. The gap between the two numbers is made up of offices that are dormant, purely administrative, deliberately invisible, or embedded so deeply in a family business that they never surface. The USA share is consistent across both views: Deloitte places about 40% of offices in North America, and 51% of the verified offices in our database are American, which fits the expectation that US offices are more visible and more active in external dealflow. You can see how the verified population breaks down geographically in our overview of the top family offices in the USA.
What this means if you are raising capital
The headline number matters less than the addressable number. Whether the true global population is 8,000 or 15,000, the offices you can realistically reach are the ones with a findable presence, a named decision maker, and evidence of recent activity. That population is in the low thousands, it is concentrated in the USA and Europe, and it is large enough that a focused outreach effort can run for a long time before exhausting it. Fundraisers who internalize this spend their energy on building a qualified list, which pays off far sooner than debating the size of the ocean.
FAQ
How many family offices are there in the world? Recent research puts the number of single family offices at about 8,030 in 2024 (Deloitte), with projections of 10,720 by 2030. Broader definitions that include embedded and informal offices push estimates past 10,000. More than 2,700 of them are verified as active investors in our database.
How many family offices are there in the US? Deloitte counted about 3,180 single family offices in North America in 2024, and some US-only estimates exceed 10,000 when informal structures are included. In our verified database, 51% of the more than 2,700 active offices are American, which is the largest share of any country by a wide margin.
Why is there no exact count of family offices? Family offices are exempt from SEC adviser registration under the 2011 Family Office Rule, so no official register exists. Definitions also differ across research firms, and public 13F visibility only begins at $100 million in qualifying US securities. Every published total is therefore an estimate.
Sources
- Deloitte Private, Defining the Family Office Landscape (2024)
- Institute for Policy Studies, Family Offices: A Vestige of the Shadow Financial System (2021), citing Campden Research 2019
- Simple, Family Office Market Size: How Many Family Offices Are There? (citing EY 2016 and others)
- SEC, Family Offices Final Rule, IA-3220 (2011)
- Investor.gov, Form 13F: Reports Filed by Institutional Investment Managers
For a working list of family offices with named decision makers, our human-verified database covers more than 2,700 active family offices. Download the free sample or see the Full USA Database.