| Business | Phone |
| Andreotti & Assoc Inc 305 N 6th Ave, Yakima 98902 | (509) 453-8281 |
| Berglund Schmidt & Assoc Inc 2706 River Rd, Yakima 98902 | (509) 575-3970 |
| Dec Engineering Svc 4805 Castleview Dr, Yakima 98908 | (509) 965-0751 |
| Pro Service Engineering Corp 1015 S 40th Ave 14, Yakima 98908 | (509) 249-8850 |
| Gray & Osborne Inc 107 S 3rd St, Yakima 98901 | (509) 453-4833 |
| Grey Surveying & Engineering 2706 River Rd, Yakima 98902 | (509) 457-7784 |