What is a family office?
A family office is a private company that manages the wealth of a high-net-worth family. In addition to managing investments, a family office may handle estate planning, business oversight, insurance, tax preparation, real estate management, charitable giving and more.
Family offices tend to have several employees. The head of a family office is often called the chief investment officer (CIO).
Family offices manage very large amounts of wealth, making their investment choices and charitable donations the subject of significant curiosity, speculation and analysis.
How much money do you need to have a family office?
There is no minimum wealth required to set up a family office. However, a minimum net worth of $10 million is often the point at which the expense of a basic family office may become justifiable.
The median assets under supervision in a family office is $476 million.
Types of family offices
Family offices require things such as office space, staffing, technology, and regulatory and compliance reporting, to operate. Families have to decide whether the amount of their assets and their interest in managing those assets makes the expense of a family office worth it.
There are three types of family offices.
1. Single-family offices
Single-family offices serve only one family, although this could include several generations of the family and family members all over the world.
- Cost per year: $3.2 million per year on average.
- Recommended minimum net worth: A minimum net worth of $100 million is often necessary to justify the cost.
2. Multifamily offices
Multifamily offices are family offices that work for more than one family. This can reduce costs and still provide personalized service to each family.
- Cost per year: Generally, 0.40% to 0.70% of assets under management (for a family with $50 million, this could mean $200,000 to $350,000 per year).
- Recommended minimum net worth: A minimum of $30 million is often necessary to justify the cost of a multifamily office.
3. Outsourced family offices
An outsourced family office is a group of people who work together on behalf of the family but are actually employees of third parties, such as law firms, banks or accounting practices. Typically one person coordinates the group’s work. However, the family may have less access to or control over the professionals in the network.
- Cost per year: Starts at about 0.2% – 1.25% of assets under management.
- Recommended minimum net worth: A minimum of $10 million is often necessary to justify the cost of an outsourced family office.
Pros and cons of a family office
Pros
Efficiency.
Comprehensive asset protection.
Confidentiality.
Alignment.
Cons
Cost.
Family dynamics.
Benefits of family offices
Efficiency. A family office has a team of people who handle a wide variety of financial issues and needs, making it a one-stop-shop with integrated, comprehensive and personalized service.
Protection. A family office can provide comprehensive financial planning and care, including creating a structured decision-making process for financial conflicts. In addition, a family office may be able to identify and mitigate risks that might have been otherwise overlooked or underappreciated.
Confidentiality. A family office can help limit the number of people who have access to the family’s private information. This is especially true if family members are employees of the family office.
Alignment. Family offices can help ensure that new generations are prepared for the responsibilities of managing wealth. They can provide financial education and guide discussion among family members, and help ensure that current and future generations of the family meet the family’s philanthropic goals.
Downsides of family offices
Cost. Family offices can cost hundreds of thousands or millions of dollars a year to operate, so it’s important to ensure that the expense is justified.
Dynamics. Some family members may not agree with the actions or decisions of the family office, which can create big conflicts. Also, family office needs might change over time as the family’s needs change, and family members may disagree about how to operate or staff the family office.
Largest family offices
You don't have to have billions of dollars to have a family office, but many family offices do manage that much. Here are the 10 largest family offices, according to the Sovereign Wealth Fund Institute.
Family Office Name | Total Assets |
|---|---|
Walton Enterprises LLC | $225,000,000,000 |
Cascade Investment | $170,000,000,000 |
Pontegadea Inversiones | $115,212,159,400 |
Bezos Expeditions | $107,800,000,000 |
Mousse Partners | $89,000,000,000 |
Ballmer Group | $85,000,000,000 |
Dubai Holding | $76,224,680,000 |
Edizione | $69,081,467,000 |
Waycrosse | $65,200,000,000 |
Fedesa | $55,000,000,000 |
Source: Sovereign Wealth Fund Institute as of March 27, 2026. | |
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- 1.King County Bar Association. Forming a Single Family Office: What Is It and Who Needs One?. Accessed Mar 27, 2026.
- 2.Masttro. Family Office Minimum Net Worth: Key Requirements and Insights. Accessed Mar 27, 2026.
- 3.J.P.Morgan Private Bank. Global Family Office Report. Accessed Mar 27, 2026.
- 4.J.P.Morgan Private Bank. Operating costs. Accessed Mar 27, 2026.
- 5.King County Bar Association. Forming a Single Family Office: What Is It and Who Needs One? - BAR BULLETIN. Accessed Mar 27, 2026.
- 6.Brown Brothers Harriman & Co.. Seven considerations before creating a family office. Accessed Mar 27, 2026.
- 7.Old State Staffing. The True Cost of Setting Up A Family Office. Accessed Mar 27, 2026.
- 8.CFA Institute. The Modern Family Office: Balancing Legacy, Innovation, and Risk. Accessed Mar 27, 2026.
