noun
affiliated company; sister company
Refers to a company that is affiliated with another, often under the same parent group. Compare 兄弟会社 (brother company), which is also used.
See also: 兄弟会社
当社の姉妹会社が新製品を発表した。
Our sister company announced a new product.
兄弟会社 also means 'sister company' or 'affiliated company', but 姉妹会社 is more common. Both are used interchangeably in business contexts.
Compound of 姉妹 (sisters) and 会社 (company). The term uses the sibling metaphor to express a close, non-hierarchical corporate relationship.