| Business | Phone |
| Carpenter's 511 E Franklin St, Hagerstown 21740 | (301) 733-4930 |
| Teamsters Welfare Insurance 10312 Remington Dr, Hagerstown 21740 | (301) 733-2602 |
| United Auto Workers Local 171 18131 Maugans Ave, Hagerstown 21740 | (301) 733-6932 |
| United Steel Workers 245 N Potomac St, Hagerstown 21740 | (301) 766-4737 |
| United Steelworkers Of America 511 E Franklin St, Hagerstown 21740 | (301) 797-7764 |
| Western Maryland Bldg & Constr 511 E Franklin St, Hagerstown 21740 | (301) 791-9675 |
| Local 472 1st Street Ext, Hagerstown 21740 | (301) 739-2268 |