A third-party administrator ( TPA ) is an organization that processes insurance claims or certain aspects of employee benefit plans for a separate entity. This can be viewed as "outsourcing" the administration of the claims processing, since the TPA is performing a task traditionally handled by the company providing the insurance or the company itself. Often, in the case of insurance claims, a TPA handles the claims processing for an employer that self-insures its employees. Thus, the employer is acting as an insurance company and underwrites the risk. The risk of loss remains with the employer, and not with the TPA. An insurance company may also use a TPA to manage its claims processing, provider networks, utilization review, or membership functions. While some third-party administrators may operate as units of insurance companies, they are often independent.[citation needed]