| Business | Phone |
| Toothman-Orton Engineering 280 W Prairie Ave, Coeur d'Alene 83815 | (208) 762-3644 |
| Tate Engineering 1103 N 4th St, Coeur d'Alene 83814 | (208) 676-8708 |
| Skelton Engineering & Assoc 3630 W Hillcrest Dr, Coeur d'Alene 83815 | (208) 664-0737 |
| Jeffrey D Block & Assoc Inc 112 E Hazel Ave A, Coeur d'Alene 83814 | (208) 765-5592 |