How to say "investor" in Japanese

Choosing the right word
  • nounThe katakana loanword, at home in finance and business talk; it covers the same ground as 投資家 but with a distinctly borrowed, industry flavor.
  • 出資者しゅっししゃ
    nounFocuses on putting up capital: a person who supplies funds to a company, venture, or project — the 'financier' side of its gloss — rather than one who buys assets for return.
  • 投資家とうしか
    nounThe general-purpose word for someone who invests money — in stocks, a business, or other assets — hoping for a return; when you simply mean 'investor', this is the natural pick.
  • 投資者とうししゃ
    nounA close synonym of 投資家, differing mainly in the suffix; the two are largely interchangeable, so there is seldom a need to reach specifically for this variant.
  • 資本主しほんぬし
    nounPoints to a person who supplies capital to a company — closer to 'stockholder' or 'capital contributor' — so for the everyday sense of 'investor' it is seldom the word you want.

For a person who invests money, 投資家 is the general choice; 出資者 stresses putting up capital for a venture; 「インベスター」 is the katakana loanword in finance talk; 投資者 is a near-variant of 投資家; 資本主 means a capital-supplying stockholder.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

Japanese equivalents

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