The Office and Professional Employees International Union, Local 9 is one of the largest and fastest growing unions in Milwaukee WI. We represent approximately 700 members in both the public sector and private sector employment. Our members work in a variety of technical, professional, clerical, white collar and blue collar professions.

The Office and Professional Employees International Union, Local 9 is one of the largest and fastest growing unions in Milwaukee WI. We represent approximately 700 members in both the public sector and private sector employment. Our members work in a variety of technical, professional, clerical, white collar and blue collar professions.