| Business | Phone |
| Bgea/Tng-Cwa 645 William T Morrissey Blvd, Dorchester 2122 | (617) 265-2666 |
| Boston Fire Fighters 55 Hallet St, Dorchester 2124 | (617) 288-2100 |
| Boston Plasterers & Cement 7 Frederika St, Dorchester 2124 | (617) 825-5200 |
| Boston Police Superior Ofcrs 413 Neponset Ave # 3, Dorchester 2122 | (617) 288-3550 |
| Boston Teachers Union 180 Mount Vernon St, Dorchester 2125 | (617) 288-2000 |
| Boston Teachers Union Health 150 Mount Vernon St, Dorchester 2125 | (617) 288-0500 |
| Bricklayers & Masons Health 645 William T Morrissey Blvd, Dorchester 2122 | (617) 436-5500 |
| Bricklayers Apprenticeship 64 Mount Vernon St, Dorchester 2125 | (617) 825-5011 |
| Sheet Metal Workers 1147 Adams St, Dorchester 2124 | (617) 296-1680 |
| Sheetmetal Training Ctr 1181 Adams St, Dorchester 2124 | (617) 298-0850 |
| Shop & Milimen 760 Adams St, Dorchester 2122 | (617) 265-3444 |
| Building & Construction Trades 12a Everdean St, Dorchester 2122 | (617) 282-0080 |
| Carpenters Local Union 67 760 Adams St, Dorchester 2122 | (617) 474-7879 |
| Plumbers Union Local 12 Labor 1240 Massachusetts Ave, Dorchester 2125 | (617) 436-6006 |
| Plumbers Union Local Welfare 1230 Massachusetts Ave, Dorchester 2125 | (617) 288-5400 |
| Pace 42 Hillsdale St, Dorchester 2124 | (617) 296-0504 |
| Floor Coverers Local Union 57 Savin Hill Ave, Dorchester 2125 | (617) 825-6141 |
| Mass Building Trades Council 256 Freeport St, Dorchester 2122 | (617) 436-3551 |
| Mass Correction Officers Union 50 Redfield St # 101, Dorchester 2122 | (617) 436-7818 |
| Labor Management Construction 256 Freeport St, Dorchester 2122 | (617) 436-4159 |
| Laborers International Union 12 Everdean St # A, Dorchester 2122 | (617) 282-0180 |
| Ibew 256 Freeport St, Dorchester 2122 | (617) 288-5999 |
| International Union-Elevator 50 Park St, Dorchester 2122 | (617) 288-1547 |