| Business | Phone |
| Conam-Ams 10005 Freeman Ave, Santa Fe Springs 90670 | (562) 946-1721 |
| West Coast Analytical Svc Inc 9240 Santa Fe Springs Rd, Santa Fe Springs 90670 | (562) 948-2225 |
| Chemtek Environmental Labs Inc 13554 Larwin Cir, Santa Fe Springs 90670 | (562) 926-9848 |
| Engineering Materials Lab 8511 Wellsford Pl # G, Santa Fe Springs 90670 | (562) 945-2138 |
| International Inspection 10600 Pioneer Blvd # A, Santa Fe Springs 90670 | (310) 328-4733 |