also: しほんしゅ
noun
investor; stockholder; capital owner
Refers to a person or entity that provides capital to a business, typically holding ownership shares. Used in financial and business contexts.
その会社の資本主は、海外の投資ファンドだ。
The company's capital owner is an overseas investment fund.
資本主として、彼は経営に口を出す権利がある。
As an investor, he has the right to have a say in management.
株主 specifically means 'shareholder' in a joint-stock company, whereas 資本主 can refer to any provider of capital, including sole proprietors or partners.
Standard kanji spelling. The reading しほんぬし is the most common.
Alternate reading, less common. May be encountered in some contexts.
Compound of 資本 (shihon, 'capital') and 主 (nushi/shu, 'owner' or 'master'). The reading しほんぬし uses the kun'yomi for 主, while しほんしゅ uses the on'yomi.