Washington
| Company | Category | Area | Address | Web | Contact person | |
| STYX CARPENTRY | Carpentry Contractor | Washington | 1424 E 4TH CIR, LA CENTER, Clark, Washington, 98629-5545, USA | - | - | Keith Johnson |
| STYX CONSTRUCTION | General Contractor | Washington | 15900 NW 41ST AVE, RIDGEFIELD, Clark, Washington, 98642-9662, USA | - | - | Danny Santa |