| Business | Phone |
| Advanced Underground Inc 12708 195th Pl Se, Issaquah 98027 | (425) 228-8868 |
| Bex Excavation & Utility Co 27320 Se 150th St, Issaquah 98027 | (425) 391-2414 |
| Cornerstone Construction 25910 Se Old Black Nugget Rd, Issaquah 98029 | (425) 391-8585 |
| Glacier Enterprises 28802 Se Preston Way, Issaquah 98027 | (425) 222-7163 |