| Business | Phone |
| Marine Power & Lighting Co 1341 N Northlake Way, Seattle 98103 | (206) 632-6522 |
| Northwest Lighting Svc Co 1340 N Northlake Way, Seattle 98103 | (206) 633-5200 |
| Moldestad Industrial 4026 22nd Ave Sw, Seattle 98106 | (206) 935-4697 |
| Maritime Services Corp 802 Nw 42nd St D, Seattle 98107 | (206) 297-8986 |
| Pfi Electric Llc 5351 24th Ave Nw, Seattle 98107 | (206) 783-6800 |
| Sound Service Marine Electric 1125 Nw 45th St A, Seattle 98107 | (206) 706-3123 |
| Northwest Biomedical Svc 422 1st Ave N, Seattle 98109 | (206) 285-0399 |
| Marine Controls Inc 145 Nw 85th St 201, Seattle 98117 | (206) 789-8501 |
| Revival Lighting 4860 Rainier Ave S B, Seattle 98118 | (206) 722-4404 |
| Molnar Service Co 1240 Ne 175th St, Seattle 98155 | (206) 363-5001 |