Public School Employees of Washington, also known as PSE, is a labor union that represents classified educational support professionals in public schools and universities. The union has more than 27,000 members in over 150 school districts throughout the state of Washington. In addition, it represents several support employees at Western Washington University and Central Washington University. Public School Employees of Washington is affiliated with the Service Employees International Union (SEIU). The union administers a variety of leadership programs that is organized into basic, intermediate and advanced levels and assistd local chapters and elected leaders. Public School Employees of Washington is located in Auburn, Wash.