| Business | Phone |
| Chemical Safety Assoc Inc 9163 Chesapeake Dr, San Diego 92123 | (619) 670-0609 |
| Advanced Chemical Transport 12310 World Trade Dr # 111, San Diego 92128 | (858) 673-3444 |
| Safety-Kleen Corp 9275 Trade Pl # H, San Diego 92126 | (858) 547-3100 |
| North State Environmental 2727 De Anza Rd, San Diego 92109 | (858) 362-3259 |