| Business | Phone |
| Advanced Design & Drafting Po Box 6243, Bellevue 98008 | (425) 643-6580 |
| Ascension Mechanical Design 1505 164th Ave Ne, Bellevue 98008 | (425) 641-5449 |
| Designs Unlimited Inc 12835 Bel Red Rd, Bellevue 98005 | (425) 646-9411 |
| Taurus Engineering Svc 1800 136th Pl Ne 202, Bellevue 98005 | (425) 462-7309 |