| Business | Phone |
| Carbon Services Northwest Seattle 98125 | (206) 367-8600 |
| Air Control Inc 1126 Nw 45th St, Seattle 98107 | (206) 789-6990 |
| Apex A & L Inc 572 Industry Dr, Seattle 98188 | (206) 575-8848 |
| Cal Air Fluid Svc 5110 S 163rd Pl, Seattle 98188 | (206) 243-4883 |
| Healthy Environments 4742 42nd Ave Sw 631, Seattle 98116 | (206) 860-8749 |