| Business | Phone |
| Beck Associates Inc 9 Office Park Cir # 100, Mountain Brook 35223 | (205) 870-4880 |
| Graphite Electrode Sales Co 15 Office Park Cir, Mountain Brook 35223 | (205) 871-2180 |
| Griffith-Herron-Middlebrook Co 200 Office Park Dr, Mountain Brook 35223 | (205) 879-7020 |
| Innovative Controls Inc 14 Office Park Cir, Mountain Brook 35223 | (205) 879-3011 |