| Business | Phone |
| H & Y Architects Inc 1320 Arnold Dr # 266, Martinez 94553 | (925) 372-9172 |
| Rhl Design Group Inc 1340 Arnold Dr # 110, Martinez 94553 | (925) 313-9700 |
| Artistic Builders Martinez 94553 | (925) 372-6488 |
| Farias & Marrugo Architects 535 Main St, Martinez 94553 | (925) 229-8806 |
| Jay Michael Lofthouse 2635 Reliez Valley Rd, Martinez 94553 | (925) 313-5999 |
| Daniel Rainey 832 Escobar St, Martinez 94553 | (925) 229-4488 |