| Business | Phone |
| 4 Ground Design Group Inc 1652 Texas St, Fairfield 94533 | (707) 421-0800 |
| Cooper Design Group 2769 Wailea Cir, Fairfield 94534 | (707) 428-0508 |
| Robert M Fessenden 1974 Winchester Pl, Fairfield 94533 | (707) 425-6878 |
| Dean F Lillis 19 Willotta Dr, Fairfield 94534 | (707) 864-1137 |
| Tlcd Architecture 2300 Boynton Ave # 102, Fairfield 94533 | (707) 421-8795 |