| Business | Phone |
| Afl-Cio 501 Broad St, Charleston 25301 | (304) 344-8068 |
| Afscme 501 Elizabeth St, Charleston 25311 | (304) 342-2836 |
| American Federation-Teachers 1610 Washington St E, Charleston 25311 | (304) 344-2679 |
| American Postal Workers Union 1002 Lee St E, Charleston 25301 | (304) 343-3119 |
| American Postal Workers Union 711 Bigley Ave, Charleston 25302 | (304) 343-1472 |
| American Postal Workers Union 1000 Centre Way, Charleston 25309 | (304) 746-0114 |
| Asbestos Workers Local 80 5012 Tipperary St, Charleston 25313 | (304) 769-2299 |
| Carpenters Union 205 Tennessee Ave A, Charleston 25302 | (304) 342-4321 |
| Cement Masons 3130 7th Ave, Charleston 25312 | (304) 744-8389 |
| Charleston Building & Constr 600 Leon Sullivan Way 2, Charleston 25301 | (304) 343-6952 |
| Charleston Carpenters Training 300 Riverside Dr, Charleston 25309 | (304) 744-6822 |
| Charleston Joint Apprntcshp 3601 James Ave, Charleston 25312 | (304) 744-6188 |
| Communications Workers-America 2512 Kanawha Blvd E, Charleston 25311 | (304) 344-2001 |
| Compac Industries Inc 4500 Maccorkle Ave Se, Charleston 25304 | (304) 925-6977 |
| Cwa Wva Area 900 Lee St E 1212, Charleston 25301 | (304) 342-2023 |
| Employer-Teamsters Joint Cncl 6810 Maccorkle Ave Se, Charleston 25304 | (304) 925-4181 |
| Ibew 800 Indiana Ave, Charleston 25302 | (304) 342-0800 |
| International Assoc-Machinists 321 5th Ave, Charleston 25303 | (304) 744-5837 |
| International Union-Oper Engrs 606 Tennessee Ave, Charleston 25302 | (304) 343-7731 |
| Iue Afl-Cio 717 Lee St E 201, Charleston 25301 | (304) 343-8345 |
| Laborers District Council 1 Monongalia St 5, Charleston 25302 | (304) 346-0581 |
| Laborers Local 1 Union Sq 1, Charleston 25302 | (304) 343-9641 |
| West Virginia Laborers Trust 1 Union Sq 4, Charleston 25302 | (304) 342-5142 |
| West Virginia State Bldg Cncl 600 Leon Sullivan Way, Charleston 25301 | (304) 346-1367 |
| West Virginia State Pipe 600 Leon Sullivan Way, Charleston 25301 | (304) 346-2558 |
| Teamsters Local Union 267 Staunton Ave Sw, Charleston 25303 | (304) 744-2193 |
| United Food & Commercial Wrkrs 412 Tennessee Ave, Charleston 25302 | (304) 346-9679 |
| Sheet Metal Workers 205 Tennessee Ave A, Charleston 25302 | (304) 343-1933 |
| Painters & Allied Trades 115 Spring St, Charleston 25302 | (304) 343-8250 |
| Plumbers & Pipe Fitters 3601 James Ave, Charleston 25312 | (304) 744-3881 |