A subsidiary, subsidiary company or daughter company[1][2][3] is a company owned or controlled by another company, which is called the parent company or holding company.[4][5] Two or more subsidiaries that either belong to the same parent company or having a same management being substantially controlled by same entity/group are called sister companies. Sister Concern is not a legal term and it is not necessary for owners of the company to same in sister concer company.
The subsidiary can be a company (usually with limited liability) and may be a government- or state-owned enterprise. They are a common feature of modern business life, and most multinational corporations organize their operations in this way.[6] Examples of holding companies are Berkshire Hathaway,[7] Jefferies Financial Group, The Walt Disney Company, Warner Bros. Discovery, or Citigroup; as well as more focused companies such as IBM, Xerox, and Microsoft. These, and others, organize their businesses into national and functional subsidiaries, often with multiple levels of subsidiaries.