| Business | Phone |
| Energy Marine 3410 Main St, San Diego 92113 | (619) 338-0837 |
| San Diego Fluid System Tech 6350 Nancy Ridge Dr # 101, San Diego 92121 | (858) 320-4000 |
| San Diego Windustrial Co 7585 Carroll Rd, San Diego 92121 | (858) 684-3111 |
| Gordon L Parkhurst Co 2636 Main St, San Diego 92113 | (619) 239-5158 |