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Family Office

A family office is the organizational infrastructure a family builds around significant wealth to manage investments, finances, legal affairs, and family needs under one coordinated structure.

A family office is not a single, legally defined thing — it is a concept. Some families build a formal standalone entity with a full staff; others coordinate a handful of trusted advisors with no dedicated office at all. What unifies them is the goal: bringing coherent structure to wealth that has grown too complex for a personal accountant and a brokerage account to handle alone. Understanding what a family office actually is starts with letting go of any fixed template.

Investment management is the component most people associate with a family office, but it is only one piece. A family office commonly also handles tax planning, estate administration, legal entity oversight, philanthropic giving, insurance, cash flow, and sometimes the personal logistics of family members. A founder who sold her logistics company might need all of these services coordinated simultaneously — that coordination infrastructure is the family office.

A common confusion is treating "family office" and "wealth manager" as interchangeable. A wealth manager is typically an outside firm managing a portfolio. A family office, by contrast, is the family's own organizational layer — it may hire wealth managers, but it sits above them, directing and overseeing. Another misconception is that a minimum net worth triggers the need for one; in reality, whether a family office makes sense depends far more on complexity than on a specific dollar figure.

The term also covers a wide spectrum of forms — from a single-family office serving one household to a multi-family office serving dozens. Families often land on the model that best balances cost, control, and capability for their particular situation.

関連用語

この用語を使用しているガイド

ファミリーオフィス

What Is a Family Office?Do You Need a Family Office?Single Family Office (SFO)Multi-Family Office (MFO)Micro Family OfficeWhat a Family Office CostsWhy Family Offices Exist

ファミリーオフィスを構築する

How to Build a Family Office From the Ground UpStep 3: The Organizational StructureStep 4: Internal vs. Outsourced (Build vs. Buy)The First 90 Days: Turning the Lights OnStep 1: Define the Family Office's PurposeStep 2: Inventory the Family's AssetsStep 5: Hire the Core Team

投資

How Family Offices InvestDirect InvestingAsset Allocation for Family CapitalThe Investment Policy Statement (IPS)Liquidity, Concentration, and RiskPublic Markets: Equities and Fixed IncomeReal Estate in the Family Portfolio

オペレーション

Family Office AccountingFamily Office TechnologyFamily Office CybersecurityConsolidated Reporting: One True Net WorthBill Pay, AP, and Financial ControlsFamily Office Software, Category by CategoryBanking, Custody, and Treasury

ガバナンスと相続

Family GovernanceEstate Planning and Wealth TransferHow Family Offices Manage TaxPhilanthropy and the Family OfficeThe Family ConstitutionSuccession: The Office After the FounderPreparing the Next Generation

業界

Careers in Family OfficesHow the Family Office Industry Is ChangingFamily Offices and Regulation

役割と人員配置

Family Office Roles & Staffing, MappedFamily Office CEO / President / Managing DirectorChief Investment Officer (CIO)Portfolio Manager / Investment DirectorAsset Manager (Real Assets)Chief Financial Officer (CFO)Controller

比較

Single vs. Multi-Family OfficeFamily Office vs. Wealth ManagerFamily Office vs. RIAFamily Office vs. Private BankFamily Office vs. Financial AdvisorFamily Office vs. Hedge FundFamily Office vs. Private Equity Firm