| Business | Phone |
| A B Johnson Inc 1595 Bodie Ave, Simi Valley 93065 | (805) 582-0947 |
| Bourgault Drafting & Design 2335 Rowland Ave, Simi Valley 93063 | (805) 306-9220 |
| Capital Designs 4377 Springfield St, Simi Valley 93063 | (818) 882-4112 |
| Kevin Tohill & Assoc Inc 3790 Lightning Ridge Way, Simi Valley 93063 | (818) 833-1098 |
| Kramer Design & Drafting 1891 Geoffrey Ave, Simi Valley 93063 | (805) 582-0889 |
| R M Designs 2205 1st St, Simi Valley 93065 | (805) 526-3916 |