Shared Services or Shared Services Center. Shared services or shared services center (SSC) refers to a dedicated unit (including people, processes and technologies) that is structured as a centralized point of service and is focused on defined business functions. These functions are supported by IT and IT services for multiple business units within the enterprise. Shared services may come from several different physical locations, and may involve numerous business functions and IT processes. The definition, structure and scope of an SSC start within the enterprise.