Barrett Business Services, Inc. provides business management solutions for small and mid-sized companies in the United States. The company develops a management platform that integrates a knowledge-based approach from the management consulting industry with tools from the human resource outsourcing industry. It offers professional employer services under which it enters into a client services agreement to establish a co-employment relationship with each client company, assuming responsibility for payroll, payroll taxes, workers' compensation coverage, and other administration functions for the client's existing workforce.