| Business | Phone |
| Interphase Environmental Inc 6200 Peachtree St, Los Angeles 90040 | (323) 278-7700 |
| Ucla Immunologenics Center 950 Veteran Ave, Los Angeles 90024 | (310) 825-7651 |
| E M Lab 2930 Westwood Blvd, Los Angeles 90064 | (310) 474-8264 |
| Rocket Science Laboratories 12233 W Olympic Blvd, Los Angeles 90064 | (310) 826-8031 |
| Lab 1401 S Grand Ave, Los Angeles 90015 | (213) 748-7533 |
| Audyssey Laboratories Inc 350 S Figueroa St, Los Angeles 90071 | (213) 625-4300 |
| Human Engineering Laboratory 3345 Wilshire Blvd # 210, Los Angeles 90010 | (213) 380-1947 |
| Digital Color Labs 130 N La Brea Ave, Los Angeles 90036 | (323) 937-3805 |
| Momentum Lab 6335 Homewood Ave, Los Angeles 90028 | (323) 822-7310 |
| Nutritional Labs Los Angeles 90028 | (323) 960-5578 |
| Nelson Laboratories 5418 W 77th St, Los Angeles 90045 | (310) 417-6976 |
| X Laboratories 1901 Avenue Of The Stars, Los Angeles 90067 | (310) 553-9400 |
| Intergem Inc 550 S Hill St # 1256, Los Angeles 90013 | (213) 622-0207 |
| Gavadent Lab 1321 N Vermont Ave # 7, Los Angeles 90027 | (323) 644-1050 |
| Imperial Clinical Labs 9911 W Pico Blvd, Los Angeles 90035 | (310) 772-0991 |
| Kehila Shatnez Lab 910 S Holt Ave # 105, Los Angeles 90035 | (310) 657-5798 |
| Lab Los Angeles 6015 Santa Monica Blvd, Los Angeles 90038 | (323) 461-7227 |
| Biopath Clinical Laboratories 975 N Virgil Ave, Los Angeles 90029 | (323) 660-1753 |