| Business | Phone |
| Aerospace Diversified Products 9594 1st Ave Ne 424, Seattle 98115 | (206) 524-0807 |
| Cantwell Cullen & Co Inc 14900 Interurban Ave S 281, Seattle 98168 | (206) 674-4571 |
| F L Aerospace Seattle 98103 | (206) 948-2823 |
| Fatigue Technology Inc 401 Andover Park E, Seattle 98188 | (206) 246-2010 |
| J & K Connectors 19209 Des Moines Memorial Dr, Seattle 98148 | (206) 674-3300 |