| Name | Address, Zip |
| Local 160 International Assoc Of Fire Fighters Of New Castle Pa | Po Box 982, 16103-0982 |
| National Active And Retired Federal Employees Association | 835 Lakeview Ave, 16101-5308 |
| International Association Of Machinists & Aerospace Workers | Po Box 7705, 16107-7705 |
| International Association Of Sheet Metal Air Rail & Transportation | 105 Buena Vista Way, 16105-1303 |
| Glass Molders Pottery Plastics & Allied Workers | 1012 Cunningham Ave, 16101-4738 |
| Laborers International Union Of North America | 20 S Mercer St Ste 2a, 16101-3859 |
| United Brotherhood Of Carpenters & Joiners Of America | Po Box 924, 16103-0924 |
| American Postal Workers Union | Po Box 7222, 16107-7222 |
| American Federation Of State County & Municipal Employees | 3437 Carmela Dr, 16105-1003 |
| American Federation Of State County & Municipal Employees | 110 E Meyer Ave, 16105-2138 |
| American Federation Of Teachers | Po Box 8556, 16107-8556 |
| American Federation Of State County & Municipal Employees | 420 E Northview Ave, 16105-2233 |
| Brotherhood Of Locomotive Engineers And Trainmen | 479 Blews Way, 16105-1475 |
| Union Area Local Branch Of Psea | 500 S Scotland Lane, 16101 |
| Shenango Area Education Association | 2550 Ellwood Rd, 16101-6202 |
| Wilmington Area Education Association | 199 Shenango Rd, 16105-1142 |
| Laurel Education Association | 2497 Harlansburg Rd, 16101-9723 |
| International Brotherhood Of Electrical Workers | 125 E North St Ste 507, 16101-3753 |
| International Brotherhood Of Teamsters | 351 Northgate Cir Ste A, 16105-5515 |
| Neshannock Education Support Professionals Psea-nea | 3834 Mitchell Rd, 16105-2980 |
| United Steelworkers | 626 E Long Ave, 16101-4846 |
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