| Business | Phone |
| Accord Engineering 2125 S Broadway, Santa Maria 93454 | (805) 348-3320 |
| Dennis Bethel & Assoc Inc 2450 Professional Pkwy # 120, Santa Maria 93455 | (805) 934-5767 |
| Fred H Schott & Assoc Santa Maria 93454 | (805) 925-3433 |
| Pacific Engineering Assocs Inc 2540 Skyway Dr # A, Santa Maria 93455 | (805) 928-7363 |
| Penfield & Smith 210 E Enos Dr, Santa Maria 93454 | (805) 925-2345 |
| Skyway Engineering Inc 3130 Skyway Dr # 305, Santa Maria 93455 | (805) 928-1221 |
| Valenzuela Engineering 1121 Tama Ln # B, Santa Maria 93455 | (805) 937-6757 |