| Business | Phone |
| Bell-Walker Engineers 914 140th Ave Ne, Bellevue 98005 | (425) 643-2002 |
| Core Design Inc 14711 Ne 29th Pl 101, Bellevue 98007 | (425) 885-7877 |
| Cts Engineers Inc 1412 112th Ave Ne 102, Bellevue 98004 | (425) 455-7622 |
| Hugh G Goldsmith & Assoc Inc 1215 114th Ave Se 200, Bellevue 98004 | (425) 462-1080 |
| Inca Engineers Inc 400 112th Ave Ne 400, Bellevue 98004 | (425) 635-1000 |
| Interlake Associates 14846 Se 50th St, Bellevue 98006 | (425) 746-0519 |