| Business | Phone |
| Aviation Partners Inc 7299 Perimeter Rd S, Seattle 98108 | (206) 767-0534 |
| Boeing Co 17930 International Blvd, Seattle 98188 | (206) 505-0073 |
| Ganz Services Inc 447 Sw 152nd St, Seattle 98166 | (206) 433-8200 |
| Iptn North America Inc 1035 Andover Park W B, Seattle 98188 | (206) 575-6507 |
| Kenmore Air Seaplanes & Harbor 950 Westlake Ave N, Seattle 98109 | (425) 486-1257 |