| Business | Phone |
| American Postal Workers Union 702 Peters Creek Pkwy, Winston Salem 27103 | (336) 725-9050 |
| Communications Workers-America 425 E Monmouth St, Winston Salem 27127 | (336) 722-3616 |
| Wspffa 8066 N Point Blvd # 206, Winston Salem 27106 | (336) 759-1024 |
| United Food & Commercial Wrkrs 163 Stratford Ct, Winston Salem 27103 | (336) 727-1610 |
| Twu Local 248 545 N Trade St, Winston Salem 27101 | (336) 723-7830 |
| Ibew 454 E Monmouth St, Winston Salem 27127 | (336) 721-0400 |
| International Association-Mach 4257 Patterson Ave, Winston Salem 27105 | (336) 767-9717 |
| National Assn-Letter Carriers 220 W Acadia Ave, Winston Salem 27127 | (336) 723-3712 |
| Cwa Local 3640 1350 Ashley Sq, Winston Salem 27103 | (336) 724-9977 |