| Business | Phone |
| Anastacio Martinez Ralph Allen 520 N Main St # 220, Santa Ana 92701 | (714) 547-9770 |
| Beck Moffett & Assoc 1224 Village Way # D, Santa Ana 92705 | (714) 543-8352 |
| Bundy-Finkel Architects 20331 Irvine Ave # 7, Santa Ana 92707 | (714) 850-7575 |
| Burger & Assoc Architecture 20331 Irvine Ave # 7, Santa Ana 92707 | (714) 850-0700 |
| Designwork Studios 2030 E 4th St # 221, Santa Ana 92705 | (714) 480-0533 |
| Donald Krotee Partnership 515 N Main St # 200, Santa Ana 92701 | (714) 547-7621 |
| Enter-Arc Inc 2901 W Macarthur Blvd # 101, Santa Ana 92704 | (714) 427-0370 |
| Eric Trabert & Assoc 20351 Irvine Ave # 1, Santa Ana 92707 | (714) 641-1505 |
| Gerald Stamm Design 206 W 4th St, Santa Ana 92701 | (714) 550-9981 |
| Anderson & Assoc Architecture 251 N Bush St, Santa Ana 92701 | (714) 997-2777 |
| Anil Verma Assocs Inc Santa Ana 92705 | (714) 569-1987 |
| Architectronix Inc 2030 N Tustin Ave, Santa Ana 92705 | (714) 836-0702 |
| Architectural Productions 1560 Brookhollow Dr, Santa Ana 92705 | (714) 556-0106 |
| David Arneson Santa Ana 92705 | (714) 547-9146 |
| Phillip Bennett 12361 Baja Panorama, Santa Ana 92705 | (714) 997-4956 |
| Lentz Morrissey Architecture 204 N Broadway, Santa Ana 92701 | (714) 836-6137 |
| M G Architects Inc 515 Cabrillo Park Dr # 102, Santa Ana 92701 | (714) 973-9090 |
| Nestor & Gaffney Architecture 305 W 4th St, Santa Ana 92701 | (714) 571-0500 |
| Ralph Allen & Partners Archs 520 N Main St # 200, Santa Ana 92701 | (714) 547-7059 |