"Subsidiaries" Natural Recordings by Native Speakers
A subsidiary is a company or business that is owned or controlled by another company, called the parent or holding company. The parent company provides financial, operational, or strategic support to the subsidiary, which operates independently in its own market or industry.
The word "subserving" is an adjective that means serving or contributing to the support or advancement of a particular purpose, cause, or interest. It is often used to describe actions or behaviors that are indirectly assisting or providing a benefit to something else.