| Business | Phone |
| American Postal Workers Union 200 Cava Dr, Clarksburg 26301 | (304) 623-4779 |
| General Laborers 2027 Hamill Ave, Clarksburg 26301 | (304) 622-7841 |
| Ibew 1001 N 12th St, Clarksburg 26301 | (304) 622-0151 |
| International Union-Oper Engrs 118 N Linden Ave, Clarksburg 26301 | (304) 623-3203 |
| North Central Wv Building & Co 1001 N 12th St, Clarksburg 26301 | (304) 626-3882 |
| Sheet Metal Workers 120 S Linden Ave, Clarksburg 26301 | (304) 623-4100 |