9 Operating Engineers Local 9 Denver, Colorado 9 Sheet Metal Workers Local 9 Denver, Colorado 68 International Brotherhood of Electrical Workers Local 68 Denver, Colorado 342 Plumbers and Steamfitter Local 342 Concord, California 378 Iron Workers Local 378 Benicia, California 416 Iron Workers Local 416 Norwalk, California 428 International Union of Operating Engineers Local 428 Phoenix, Arizona 433 Iron Workers Local 433 City of Industry, California 640 International Brotherhood of Electrical Workers Local 640 Phoenix, Arizona SMACNA The Sheet Metal and Air Conditioning Contractors' National Association website   EFCU Electrical Federal Credit Union Arvada, Colorado