There are literally hundreds of unions in Illinois. Construction workers are often unionized in Illinois by the specific trade they specialize in. For example, Bricklayers Local 67 represents exclusively bricklayers in the Chicagoland area. Other examples include The International Union of Operating Engineers, International Brotherhood of Electrical Workers, Operative Plasterer's and Cement Mason’s International Association, and the United Union of Roofers, Waterproofers and Allied Workers.