| Business | Phone |
| Act Foundation 1406 1/2 13th St, Parkersburg 26101 | (304) 424-5220 |
| Mid-Atlantic Rc-Carpenters 2905 Emerson Ave, Parkersburg 26104 | (304) 485-2300 |
| Carpenters 458 Cedar Grove Rd, Parkersburg 26104 | (304) 428-0394 |
| Communications Workers-America 914 Market St 303, Parkersburg 26101 | (304) 485-9259 |
| Wood County Federation-Tchrs Parkersburg 26101 | (304) 488-1104 |
| Sheet Metal Workers 4601 Camden Ave A, Parkersburg 26101 | (304) 422-5549 |
| Iam 1406 1/2 13th St, Parkersburg 26101 | (304) 428-1661 |
| Ibew 1845 7th St, Parkersburg 26101 | (304) 485-7412 |
| Internat Assoc Of Brid 1406 1st Ave, Parkersburg 26101 | (304) 485-6231 |
| Iron Workers 303 Erickson Blvd, Parkersburg 26101 | (304) 485-6231 |
| Millwrights 4600 Camden Ave, Parkersburg 26101 | (304) 422-1593 |
| National Assn-Letter Carriers 2011 1/2 10th Ave, Parkersburg 26101 | (304) 428-3662 |
| Painters 512 33rd St, Parkersburg 26101 | (304) 485-5181 |
| Parkersburg Area Labor Council 1406 1/2 13th St, Parkersburg 26101 | (304) 428-8765 |
| Parkersburg-Marietta Building 3100 Dudley Ave, Parkersburg 26104 | (304) 424-6443 |
| Plumbers & Steamfitters 593 Cedar Grove Rd, Parkersburg 26104 | (304) 485-5202 |
| Roofers Local #242 1406 1/2 13th St, Parkersburg 26101 | (304) 485-5099 |