| Business | Phone |
| Adams & Clark Inc 1720 W 4th Ave, Spokane 99204 | (509) 747-4600 |
| Belsby Engineering 2702 W Sunset Blvd, Spokane 99224 | (509) 747-6790 |
| Clc Associates Inc 12730 E Mirabeau Pkwy 100, Spokane 99216 | (509) 458-6840 |
| David Evans & Assoc Inc 908 N Howard St 300, Spokane 99201 | (509) 327-8697 |
| E & H Engineering Inc 3707 S Godfrey Blvd, Spokane 99224 | (509) 744-0245 |
| Hahn Engineering 605 E Holland Ave 112, Spokane 99218 | (509) 467-1550 |
| J R Bonnett Engineering 803 E 3rd Ave, Spokane 99202 | (509) 534-3929 |
| J-U-B Engineers Inc 422 W Riverside Ave 722, Spokane 99201 | (509) 458-3727 |
| Metro Engineering Inc 324 S Sherman St, Spokane 99202 | (509) 624-9351 |
| Ramer & Assoc 14 W Graves Rd, Spokane 99218 | (509) 467-5261 |
| Simpson Engineers Inc 909 N Argonne Rd, Spokane 99212 | (509) 926-1322 |
| Storhaug Engineering 510 E 3rd Ave, Spokane 99202 | (509) 242-1000 |
| Taylor Engineering Inc 106 W Mission Ave 206, Spokane 99201 | (509) 328-3371 |
| Thomas Dean & Hoskins Inc 303 E 2nd Ave, Spokane 99202 | (509) 622-2888 |
| Uskh Inc 621 W Mallon Ave 309, Spokane 99201 | (509) 328-5139 |
| Varela & Assoc Inc 601 W Mallon Ave A, Spokane 99201 | (509) 328-6066 |
| Whipple Consulting Engineers 13218 E Sprague Ave, Spokane 99216 | (509) 893-2617 |