| Business | Phone |
| Amalgamated Transit Union 500 Garden City Dr, Monroeville 15146 | (412) 856-2794 |
| Drywall Finishers Local Union 105 Mall Blvd, Monroeville 15146 | (412) 373-7225 |
| Electronic Electrical Salaried 111 Whitehead Ln, Monroeville 15146 | (412) 856-9773 |
| Iue Cwa 111 Whitehead Ln # 2, Monroeville 15146 | (412) 856-9882 |
| Operating Engineers Local 66 300 Seco Rd, Monroeville 15146 | (412) 856-8662 |