| Business | Phone |
| All Controls Inc 3432 Sierra Dr, Birmingham 35216 | (205) 822-8206 |
| Applebee-Church Chromalox 2018 Russet Meadows Ct, Birmingham 35244 | (205) 879-4417 |
| Asco Valve 500 Chase Park S # 128, Birmingham 35244 | (205) 988-8169 |
| Awc Birmingham 35244 | (251) 666-7050 |
| Btmpei Group 1945 Hoover Ct, Birmingham 35226 | (205) 824-3140 |
| Capers & Capers Mobile Car Birmingham 35203 | (205) 676-1926 |
| Carter Instrument Sales 3536 East St, Birmingham 35243 | (205) 969-1399 |
| Electric Machine Control Inc 4901 1st Ave S, Birmingham 35222 | (205) 591-0402 |
| Control & Power Inc 2720 7th Ave S, Birmingham 35233 | (205) 870-0274 |
| Control Southern Inc 2200 Riverchase Ctr # 615, Birmingham 35244 | (205) 988-5700 |
| Control Specialists Inc 1004 Dunnavant Valley Rd, Birmingham 35242 | (205) 991-7274 |
| Horton Instrument Co 2537 Tyler Rd, Birmingham 35226 | (205) 978-3725 |
| Asco Valve Inc 500 Chase Park S # 128, Birmingham 35244 | (205) 988-8169 |
| Jordan Marlar & Hale Inc 225 Lorna Sq # A, Birmingham 35216 | (205) 979-8324 |