| Business | Phone |
| Allen-Bradley Co 9020 Stony Point Pkwy 300, Richmond 23235 | (804) 330-7000 |
| Diversified Control Systems 458 Southlake Blvd, Richmond 23236 | (804) 594-2890 |
| Protocol Controls Inc 5401 Jefferson Davis Hwy, Richmond 23234 | (804) 271-5544 |
| Otte Controls Inc 11622 Busy St, Richmond 23236 | (804) 794-3400 |
| Moore Products Co 11320 Bondurant Dr, Richmond 23236 | (804) 794-0578 |
| 3 S Co 7407 Fairway Ave, Richmond 23228 | (804) 262-0668 |
| Advance Control Equipment 2321 Westwood Ave, Richmond 23230 | (804) 355-7764 |
| Cimtec Automation 1622 E Parham Rd, Richmond 23228 | (804) 264-1600 |
| United Control Co Inc 3895 Deep Rock Rd, Richmond 23233 | (804) 527-6500 |
| Siebe Appliance Controls 1701 Byrd Ave, Richmond 23230 | (804) 289-4342 |
| Smith & Brooks Inc 5637 S Laburnum Ave, Richmond 23231 | (804) 222-1669 |
| Nbb Controls Inc 1572 E Parham Rd, Richmond 23228 | (804) 262-4846 |
| Jobe & Co Inc 2508 Grenoble Rd, Richmond 23294 | (804) 672-6508 |
| Kyser Co Inc 5655 S Laburnum Ave, Richmond 23231 | (804) 236-2393 |
| Mid-Atlantic Controls Corp 8511 Oakview Ave, Richmond 23228 | (804) 262-4923 |
| Associated Controls Inc 3300 W Cary St A, Richmond 23221 | (804) 358-0569 |
| Martin Control & Equipment Co 2306 N Lombardy St, Richmond 23220 | (804) 321-7143 |
| Micro Motion Inc Richmond 23219 | (804) 378-1588 |
| Tac America 7400 Beaufont Spring Dr, Richmond 23225 | (804) 330-5660 |