Translation guide
An investor is a person or entity that puts money into something expecting a financial return. In Japanese, the most common word is 投資家 (とうしか), but other terms exist for different contexts.
投資家
investor (general)
A person who invests money in stocks, real estate, businesses, etc.
The standard, neutral word for an individual investor. Used in news, business, and everyday conversation.
彼は有名な投資家です。
He is a famous investor.
個人投資家が増えている。
Individual investors are increasing.
Emphasizes the act of providing capital, often for a specific project or company. More formal and business-like.
新事業の出資者を募る。
We are seeking investors for the new venture.
A more formal or legal term, often used in official documents. Less common in daily speech.
投資者保護のための法律
laws for the protection of investors
An organization that invests, such as a bank, fund, or company.
The standard term for institutional investors like pension funds, insurance companies, etc.
機関投資家が市場を動かす。
Institutional investors move the market.
Refers to an investment company or firm, often used when the entity is a business itself.
その投資会社は多くのスタートアップに投資している。
That investment company invests in many startups.
An individual who provides capital to startups, often in exchange for equity.
Direct loanword from English, widely understood in startup contexts.
彼はエンジェル投資家として数社を支援した。
He supported several companies as an angel investor.
Refers to a professional venture capitalist, often working for a VC firm.
ベンチャーキャピタリストが有望な企業を探している。
Venture capitalists are looking for promising companies.
An investor from another country.
Standard term for foreign investors, commonly used in economic news.
外国人投資家が日本株を買い越した。
Foreign investors were net buyers of Japanese stocks.
Similar to 外国人投資家 but emphasizes overseas location rather than nationality.
海外投資家の関心が高まっている。
Interest from overseas investors is growing.
投資家 is the broad, everyday term for an investor. 出資者 specifically highlights the act of providing funds and is often used in legal or project-based contexts.
You can combine 投資家 with modifiers to specify types: 個人投資家 (individual investor), 機関投資家 (institutional investor), 外国人投資家 (foreign investor).