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ファミリーオフィスとは? 🛠 ファミリーオフィス・ビルダー 学ぶ ニュース
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構築する 設立方法 — ステップバイステップ 組織構造 役割と人員配置 ✓ チェックリスト コスト試算ツール 成熟度モデル
投資 概要 ダイレクト・インベスティング(直接投資) ポリシーステートメント デュー・ディリジェンス
オペレーション 概要 会計 情報技術 サイバーセキュリティ
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学ぶ:サイト上のすべてのガイド

98 ファミリーオフィスを実際に構築・運営する流れに沿って整理された、わかりやすい解説ガイドです。どこからでも読み始められ、すべてのページが相互にリンクされています。

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ファミリーオフィス

ファミリーオフィスとは何か、なぜ存在するのか、シングル・マルチ・マイクロ・バーチャルといった種類、そしてコストについて。

What Is a Family Office?

A family office is the organizational infrastructure a family builds around significant wealth — a dedicated structure that coordinates investments… · 7 分で読めます

Why Family Offices Exist

Family offices exist because significant wealth creates a level of complexity that scattered advisors, generic bank platforms, and part-time… · 6 分で読めます

Do You Need a Family Office?

Whether you need a family office depends far more on the complexity of your financial life than on a specific dollar threshold. A family with $30… · 9 分で読めます

The Types of Family Offices

Family offices come in several distinct forms — single-family offices, multi-family offices, micro family offices, virtual family offices, and… · 6 分で読めます

Single Family Office (SFO)

A single family office (SFO) is a private organization built and owned by one family to manage the full complexity of significant wealth —… · 8 分で読めます

Multi-Family Office (MFO)

A multi-family office (MFO) is a professional firm that delivers family-office-level services — investment oversight, consolidated reporting, tax… · 8 分で読めます

Micro Family Office

A micro family office is an informal term for a deliberately lean family office structure built around a principal and a small core team — typically… · 9 分で読めます

Virtual Family Office (VFO)

A virtual family office (VFO) is a coordinated network of outside specialists — accountants, attorneys, investment advisors, and others — assembled… · 6 分で読めます

Embedded Family Office

An embedded family office is an informal arrangement where the CFO, controller, or other senior staff of a family's operating business quietly take… · 6 分で読めます

Family Office Examples & Structures

Family office examples and structures range from a lean two- or three-person team that outsources most functions, to a mid-sized office with a… · 6 分で読めます

What a Family Office Costs

A family office costs anywhere from a few hundred thousand dollars a year for a lean outsourced setup to several million dollars a year for a fully… · 8 分で読めます

When a Family Office Makes Economic Sense

A family office makes economic sense when the total cost of building and running one is lower than the combined fees, friction, and coordination gaps… · 6 分で読めます

The History and Evolution of Family Offices

Family offices have existed in some form for centuries, from European aristocratic stewards managing land and household affairs to the grand private… · 6 分で読めます

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ファミリーオフィスを構築する

ミッションの定義からチームの採用、ストラクチャーの選択、オペレーション開始まで、段階的なステップをご案内します。

How to Build a Family Office From the Ground Up

Building a family office follows five sequential steps: define the office's purpose, inventory the family's assets, create an organizational… · 9 分で読めます

The First 90 Days: Turning the Lights On

The first 90 days of a family office are about turning a legal entity into a working operation — opening accounts, locking down security, collecting… · 6 分で読めます

Step 1: Define the Family Office's Purpose

Defining a family office's purpose means deciding—before hiring anyone or choosing a structure—exactly which functions the office will perform and… · 6 分で読めます

Step 2: Inventory the Family's Assets

A family asset inventory is a complete, structured list of everything a family owns and everything it owes — cash, investments, real estate… · 6 分で読めます

Step 3: The Organizational Structure

A family office organizational structure is the layered system of legal entities — management companies, holding companies, trusts, partnerships… · 7 分で読めます

Step 4: Internal vs. Outsourced (Build vs. Buy)

The internal-versus-outsourced decision is one of the most consequential choices a family office makes: for each function, a family must weigh… · 7 分で読めます

Step 5: Hire the Core Team

Hiring the right people in the right order is one of the most consequential decisions in building a family office. Most families start with a trusted… · 6 分で読めます

The Lean Family Office, Illustrated

A lean family office is a small, tightly staffed operation — typically three to four people inside the office — supported by a circle of outside… · 6 分で読めます

The Mid-Sized Family Office, Illustrated

A mid-sized family office typically employs between six and fifteen people and adds formal layers — a managing director, a small investment team, a… · 5 分で読めます

The Institutional Family Office, Illustrated

An institutional family office is a fully staffed, in-house organization typically serving one family with significant, multi-generational wealth… · 6 分で読めます

Legal Entities a Family Office Uses

A family office typically operates through a layered set of legal entities — not a single company — that separate management, investment holding, and… · 6 分で読めます

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投資

ファミリーオフィスによる資本管理:資産配分・資産クラス・直接投資・投資方針書・デューデリジェンス。

How Family Offices Invest

Family offices invest differently from most institutions because they combine long time horizons, significant tax sensitivity, concentrated legacy… · 9 分で読めます

Asset Allocation for Family Capital

Asset allocation is the process of deciding how to divide a family's capital across different categories of investments — such as stocks, bonds, real… · 7 分で読めます

The Investment Policy Statement (IPS)

An Investment Policy Statement (IPS) is a written document that defines how a family office will invest — covering goals, risk tolerance, asset… · 7 分で読めます

Liquidity, Concentration, and Risk

Liquidity, concentration, and risk management are three foundational disciplines that family offices apply to protect and sustain wealth across… · 8 分で読めます

Public Markets: Equities and Fixed Income

Public markets — stocks (equities) and bonds (fixed income) — form the liquid core of most family office portfolios, providing the ready cash that… · 6 分で読めます

Real Estate in the Family Portfolio

Real estate commonly appears in family portfolios in three forms: direct ownership of physical property, funds that pool capital across many assets… · 7 分で読めます

Private Equity and Venture Capital

Private equity and venture capital are pools of capital that invest in privately held companies — businesses whose shares are not traded on public… · 6 分で読めます

Private Credit

Private credit is lending that happens outside the traditional banking system, where a family office or other investor lends money directly to… · 7 分で読めます

Hedge Funds, Infrastructure, and Commodities

Hedge funds, infrastructure, and commodities are the "diversifier sleeve" that families often add to a portfolio alongside stocks, bonds, real… · 8 分で読めます

Cash and Treasury for Families

Cash and treasury management is how family offices decide where family cash sits, how much to keep on hand, and how to squeeze reasonable yield out… · 7 分で読めます

Direct Investing

Direct investing means a family office writes a check directly into a company, property, or loan — bypassing a fund manager and owning the asset… · 8 分で読めます

Co-Investments and Club Deals

A co-investment is a direct stake in a single deal that a private equity or other fund sponsor offers to select limited partners alongside the main… · 6 分で読めます

Deal Sourcing, Monitoring, and Exits

Deal sourcing, monitoring, and exits describe the full lifecycle of a direct investment inside a family office — from discovering an opportunity to… · 7 分で読めます

Due Diligence

Due diligence is the structured process a family office uses to investigate an investment — whether a fund commitment or a direct deal — before… · 7 分で読めます

Manager Selection

Manager selection is the process a family office uses to identify, evaluate, and hire external investment managers — such as fund managers… · 6 分で読めます

Investment Committees That Work

An investment committee (IC) is the group of people a family office formally empowers to make or ratify investment decisions, set policy, and hold… · 6 分で読めます

Performance Measurement and Benchmarking

Performance measurement and benchmarking is how a family office evaluates whether its investments are actually earning what they appear to earn — and… · 7 分で読めます

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オペレーション

基盤となる仕組み:会計、連結レポーティング、テクノロジー、サイバーセキュリティ、バンキング、リスク。

Family Office Accounting

Family office accounting is the financial recordkeeping infrastructure that tracks every entity, investment, expense, and transfer inside a family's… · 8 分で読めます

Consolidated Reporting: One True Net Worth

Consolidated reporting is the process of pulling every account, entity, asset class, and liability a family owns into a single, unified picture of… · 7 分で読めます

Bill Pay, AP, and Financial Controls

Bill pay, accounts payable, and financial controls are the operational backbone of a family office — the systems and workflows that ensure every… · 6 分で読めます

Family Office Technology

Family office technology is the software stack that connects every operational function — from portfolio reporting and accounting to document… · 9 分で読めます

Family Office Software, Category by Category

Family office software falls into several distinct categories — reporting and consolidation, general ledger accounting, document management, CRM… · 7 分で読めます

Family Office Cybersecurity

Family office cybersecurity covers the policies, tools, and habits that protect a wealthy family's financial accounts, personal data, and daily… · 8 分で読めます

Banking, Custody, and Treasury

Banking, custody, and treasury cover how a family office holds its cash, where its securities are safeguarded, how it borrows strategically, and how… · 7 分で読めます

Insurance and Risk Management

A family office risk management program covers far more than investment risk — it includes property and casualty insurance, umbrella liability… · 7 分で読めます

Household Employees and Personal Operations

Household employees and personal operations cover the employment, payroll, compliance, and day-to-day management of the domestic staff — estate… · 6 分で読めます

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ガバナンスと相続

ファミリー・ガバナンス、相続・資産承継プランニング、税務コーディネーション、そしてフィランソロピー。

Family Governance

Family governance is the set of structures, rules, and habits that help a family make decisions together — about money, employment, distributions… · 8 分で読めます

The Family Constitution

A family constitution (also called a family charter) is a written document that captures a family's shared values, governance rules, decision-making… · 6 分で読めます

Succession: The Office After the Founder

Succession planning for a family office means preparing for two overlapping transitions: who leads the family's wealth decisions from one generation… · 7 分で読めます

Preparing the Next Generation

Preparing the next generation means building a structured, age-appropriate program that teaches younger family members how wealth works, what… · 6 分で読めます

Estate Planning and Wealth Transfer

Estate planning and wealth transfer is the body of legal and financial work that determines how a family's assets pass to future generations… · 9 分で読めます

Trusts, Explained in Plain English

A trust is a legal arrangement in which one party holds and manages assets for the benefit of another. This guide explains the core vocabulary —… · 6 分で読めます

FLPs and Family LLCs

Family limited partnerships (FLPs) and family LLCs are legal entities that families commonly use to consolidate assets under one structure, clarify… · 7 分で読めます

Life Insurance in Wealth Planning

Life insurance plays a structural role in wealth planning far beyond simple income replacement — it can provide immediate liquidity at death, fund… · 7 分で読めます

How Family Offices Manage Tax

A family office manages tax not as a once-a-year filing exercise but as a continuous, year-round coordination effort spanning every entity… · 9 分で読めます

The Family Tax Calendar

The family tax calendar is the recurring, year-round schedule a family office follows to coordinate tax filings, estimated payments, document… · 7 分で読めます

Philanthropy and the Family Office

Philanthropy in a family office means far more than writing checks — it is a structured program that covers direct giving, donor-advised funds… · 8 分で読めます

Private Foundations

A private foundation is a legal entity a family creates to pursue charitable goals, funded almost entirely by the family itself and governed by a… · 6 分で読めます

Donor-Advised Funds (DAFs)

A donor-advised fund (DAF) is a charitable giving account held at a sponsoring organization where a donor makes an irrevocable contribution, receives… · 7 分で読めます

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業界

ファミリーオフィス業界:ニュース、トレンド、キャリア、ディレクトリ、リソースライブラリ。

How the Family Office Industry Is Changing

The family office industry is changing rapidly, shaped by forces including earlier formation by entrepreneurs, advancing technology that compresses… · 6 分で読めます

Careers in Family Offices

Family offices hire across a wide range of disciplines — investment management, accounting, tax, legal, technology, estate operations, and executive… · 8 分で読めます

Family Offices and Regulation

Most single family offices are structured specifically to fall outside the registration requirements that apply to investment advisers — a concept… · 6 分で読めます

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役割と人員配置

ファミリーオフィスのすべてのポジションを解説:役割、必要なタイミング、そしてアウトソースの可否。

Family Office Roles & Staffing, Mapped

A family office staffing map covers every role from CEO to bookkeeper, explains what each person does, when that role typically becomes necessary… · 7 分で読めます

Family Office CEO / President / Managing Director

The family office CEO, president, or managing director is the top operational seat in a family office — the person responsible for running the office… · 6 分で読めます

Chief Investment Officer (CIO)

A family office Chief Investment Officer (CIO) owns the investment program from end to end — setting asset allocation strategy, selecting and… · 6 分で読めます

Portfolio Manager / Investment Director

The Portfolio Manager or Investment Director is the hands-on investment seat in a family office, sitting directly below the Chief Investment Officer… · 6 分で読めます

Asset Manager (Real Assets)

The Asset Manager (Real Assets) is the family office team member responsible for the day-to-day operational oversight of physical assets — primarily… · 6 分で読めます

Chief Financial Officer (CFO)

The family office CFO is the senior finance leader responsible for accounting policy, consolidated reporting, treasury, tax coordination, internal… · 6 分で読めます

Controller

A family office controller owns the books: recording every transaction, closing the accounts each month, producing financial statements, and making… · 6 分で読めます

Accountant / Bookkeeper

The family office accountant or bookkeeper handles the daily transactional layer of financial operations: recording journal entries, reconciling… · 6 分で読めます

Tax Director

A family office Tax Director leads in-house tax strategy and planning — not just filing returns — coordinating with outside preparers, managing… · 7 分で読めます

General Counsel

The General Counsel (GC) is the family office's senior legal authority, responsible for entity governance, contract review, deal support, and… · 7 分で読めます

Chief Operating Officer (COO)

The Chief Operating Officer (COO) of a family office is the person responsible for making the organization run smoothly — overseeing processes… · 6 分で読めます

Chief of Staff

A family office Chief of Staff acts as the principal's force multiplier — managing priorities, information flow, meeting rhythms, and special… · 6 分で読めます

Executive Assistant

A family office executive assistant manages the calendars, travel, correspondence, filings, and personal logistics that keep the principal's life and… · 6 分で読めます

Family Office Manager / Director

The Family Office Manager or Director is the generalist leader most commonly hired first in micro and lean family offices — a single person who… · 6 分で読めます

Estate / Property Manager

An estate or property manager runs the physical infrastructure of a wealthy family's homes and properties — coordinating household staff, vendors… · 6 分で読めます

Philanthropy Director

A Philanthropy Director leads a family office's giving program from end to end — working with the family to set charitable strategy, managing grant… · 6 分で読めます

Technology / Cybersecurity Director

The Technology / Cybersecurity Director is the family office role responsible for owning the reporting stack, managing integrations between financial… · 7 分で読めます

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比較

並べて比較する解説:ファミリーオフィスとRIA、プライベートバンク、ウェルスマネージャー、ファンド、および相互の違い。

Single vs. Multi-Family Office

A single-family office (SFO) serves one family exclusively, offering maximum control and customization at higher cost, while a multi-family office… · 6 分で読めます

Family Office vs. Wealth Manager

A family office and a wealth manager both help families grow and protect wealth, but they differ fundamentally in scope: a wealth manager focuses… · 6 分で読めます

Family Office vs. RIA

A registered investment adviser (RIA) is a firm regulated by the SEC or a state regulator that manages investments and is legally required to act in… · 7 分で読めます

Family Office vs. Private Bank

A private bank is a financial institution that bundles banking, lending, custody, and investment advice into a single relationship, while a family… · 6 分で読めます

Family Office vs. Financial Advisor

A financial advisor is a single professional who advises a family on investments and financial planning, while a family office is an organization —… · 6 分で読めます

Family Office vs. Hedge Fund

A family office and a hedge fund both manage significant pools of capital, but they exist for fundamentally different reasons: a family office is the… · 6 分で読めます

Family Office vs. Private Equity Firm

A family office and a private equity firm both invest in companies and assets, but they operate on fundamentally different models: a private equity… · 6 分で読めます

Family Office vs. Investment Fund

A family office is private organizational infrastructure built around one family's wealth, while an investment fund pools capital from outside… · 6 分で読めます

Family Office vs. Holding Company

A holding company owns assets — it sits on top of investments, operating businesses, or real estate and holds legal title to them. A family office is… · 7 分で読めます

Family Office vs. Trusts and Estate Structures

A family office and a trust are not the same thing and are not alternatives to each other — trusts are legal containers that hold and govern assets… · 6 分で読めます

Micro Family Office vs. Traditional SFO

A micro family office and a traditional single family office both serve one family, but they differ sharply in headcount, cost, and how much… · 6 分で読めます

Outsourced vs. Internal Family Office

A family office can be staffed entirely with employees you hire directly (an internal model) or built around a network of outside firms and… · 7 分で読めます

In-House CIO vs. Outsourced CIO (OCIO)

A family office can cover investment oversight in two main ways: hiring a dedicated in-house Chief Investment Officer or engaging an Outsourced CIO… · 7 分で読めます

Family Office CFO vs. Controller

A family office CFO focuses on strategy — capital structure, tax coordination, reporting architecture, and advising the principal — while a… · 6 分で読めます

Family Office vs. Operating Company

A family office and an operating company serve fundamentally different purposes: an operating company generates revenue by selling goods or services… · 6 分で読めます

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