Washington
| Company | Category | Area | Address | Web | Contact person | |
| US NORTHWEST EXPRESS | Freight Transportation Arrange | Washington | 5150 VILLAGE PRK DR SE STE 100, BELLEVUE, King, Washington, 98006-6652, USA | - | - | Dan Urie |
| US NUCLEAR REGULATORY COMM | Federal Govt-Reg & Adm-Comms/U | Washington | PO BOX 69, RICHLAND, Benton, Washington, 99352-0069, USA | - | - | Robert Barr |
| US NUCLEAR REGULATORY COMM | Federal Govt-Reg & Adm-Comms/U | Washington | PO BOX 69, RICHLAND, Benton, Washington, 99352-0069, USA | - | - | Robert Barr |