| Business | Phone |
| Delta Environmental 4006 148th Ave Ne, Redmond 98052 | (425) 498-7700 |
| Delta Environmental Consultants 4006 148th Ave Ne, Redmond 98052 | (425) 450-7726 |
| Eco Pacific Environmental Svc 2001 183rd Ave Ne, Redmond 98052 | (425) 746-5481 |
| Emr Inc 2635 151st Pl Ne, Redmond 98052 | (425) 861-4561 |
| Ensr 9521 Willows Rd Ne, Redmond 98052 | (425) 881-7700 |