| Business | Phone |
| Riedesel & Assoc Inc 202 Falls Ave, Twin Falls 83301 | (208) 733-2446 |
| Shorock Hydro 2283 Wright Ave, Twin Falls 83301 | (208) 736-8255 |
| Humboldt Engineering & Constr 126 2nd St E, Twin Falls 83301 | (208) 733-2300 |
| Jub Engineers Inc 115 Northstar Ave, Twin Falls 83301 | (208) 733-2414 |