We are signatory to the following Unions:
  
International Brotherhood of Electrical Workers Local Union No. 16, 481, 725
United Association of Plumbers and Pipefitters Local Union No. 136
International Union of Operating Engineers Local Union No. 181
Sheet Metal Workers International Association Local Union No. 20
Operative Plasterers and Cement Masons International Association Local 692 - Area 821
Indiana Regional Council of Carpenters Local Union No. 546
Indiana Regional Council of Millwrights Local Union No. 1080
Laborers International Union of North America Local Union No. 741
Iron Workers Local Union No. 70