| Business | Phone |
| Conrad Associates 7120 Hayvenhurst Ave # 214, Van Nuys 91406 | (818) 780-1086 |
| Edward Silver & Assoc Engrs 7543 Woodley Ave # 201, Van Nuys 91406 | (818) 376-0155 |
| Herman Goodman Assoc Inc 14401 Sylvan St # 209, Van Nuys 91401 | (818) 786-3387 |
| Raymond E Steinberg & Assoc 14407 Gilmore St # 201, Van Nuys 91401 | (818) 786-6181 |
| Valley Home Design 14423 Sylvan St, Van Nuys 91401 | (818) 908-9851 |
| Asa Engineering Design Svc 6320 Van Nuys Blvd # 303, Van Nuys 91401 | (818) 997-1030 |