| Business | Phone |
| Ancon Marine Inc 2250 E Dominguez St, Carson 90810 | (310) 549-8611 |
| National Environmental 22010 Wilmington Ave # 110, Carson 90745 | (310) 645-4516 |
| Trihydro Corp 20945 S Wilmington Ave, Carson 90810 | (310) 522-4466 |
| Total Air Analysis 1210 E 223rd St # 314, Carson 90745 | (310) 518-5133 |