| Business | Phone |
| Alvisa Corp 5902 Monterey Rd # 223, Los Angeles 90042 | (323) 255-9070 |
| Cal-Quake 636 N Formosa Ave, Los Angeles 90036 | (323) 931-2969 |
| Le High Construction Co 714 S Plymouth Blvd, Los Angeles 90005 | (323) 931-1306 |
| Strand Earthquake Consultants 1436 S Bentley Ave # 6, Los Angeles 90025 | (310) 473-2316 |
| Recovery Management Systems Los Angeles 90036 | (323) 938-5426 |
| United States Survival Society Los Angeles 90069 | (310) 652-4777 |
| Avalin Seismic Construction Co 1060 S Hayworth Ave, Los Angeles 90035 | (323) 939-2551 |
| Nielsen Construction 1043 Stearns Dr, Los Angeles 90035 | (323) 933-7797 |
| Quakebusters 1430 S Sherbourne Dr # 1, Los Angeles 90035 | (310) 659-7458 |