| Business | Phone |
| Evergreen Engineering Svc 8625 Evergreen Way 215, Everett 98208 | (425) 513-2500 |
| Perteet Engineering 2707 Colby Ave 900, Everett 98201 | (425) 252-7700 |
| Northwest Tower Engineering 2210 Hewitt Ave 209, Everett 98201 | (425) 258-4248 |
| Higa Burkholder Assoc Llc 1721 Hewitt Ave 401, Everett 98201 | (425) 252-2826 |
| Western Engineers Inc 13000 Highway 99, Everett 98204 | (425) 742-5500 |
| Western Surveyors Inc 9802 Evergreen Way, Everett 98204 | (425) 353-1119 |
| Trepanier Engineering 1601 Broadway, Everett 98201 | (425) 259-5556 |