| Business | Phone |
| 2 H Engineering Corp 2305 E Ashlan Ave, Fresno 93726 | (559) 226-3208 |
| Arrigoni & Assoc Inc 7580 N Ingram Ave, Fresno 93711 | (559) 261-9800 |
| Electrical Power Systems Inc 4049 N Fresno St, Fresno 93726 | (559) 221-7230 |
| Interstate Engineering Inc 466 W Fallbrook Ave # 106, Fresno 93711 | (559) 432-4490 |
| Peter Kwan Engineering 320 W Bedford Ave # 101, Fresno 93711 | (559) 432-1147 |
| Electrical Systems Design Co 5376 N Bond St, Fresno 93710 | (559) 222-2990 |
| John Chong Engineering 7942 N Maple Ave, Fresno 93720 | (559) 325-9988 |