| Abco Inc | 208-888-0039 | 2161 Lanark St | Meridian | ID | 83642 |
| American Fabrication | 208-522-1361 | 1300 Pancheri Dr | Idaho Falls | ID | 83402 |
| American Steel Fabricators | 208-345-3458 | 4805 Apple St | Boise | ID | 83705 |
| B & C Welding | 208-587-3777 | Canyon Creek Rd | Mountain Home | ID | 83647 |
| Bouvia Homes | 208-452-4234 | W Gayway Jctn | Fruitland | ID | 83619 |
| Broemeling Brothers Steel Corp | 208-743-6962 | 2304 5th Ave N | Lewiston | ID | 83501 |
| Cedarpids Inc Pafco Facility | 208-238-6300 | 3770 Poleline Rd | Pocatello | ID | 83201 |
| Certified Welding & Fabricating | 208-476-7281 | 127 Wisconsin | Orofino | ID | 83544 |
| Christy Mfg | 208-476-4870 | 14410 Highway 12 | Orofino | ID | 83544 |
| Clearwater Welding | 208-743-6651 | 108 18th St | Lewiston | ID | 83501 |
| Cougar Bay Company Inc | 208-667-7925 | 100 S Meadowbrook Rd | Coeur D Alene | ID | 83814 |
| Crooks Industries Inc | 208-467-4445 | 1731 Industrial Rd | Nampa | ID | 83687 |
| Crooks Industries Inc | 208-336-2392 | 1731 Industrial Rd | Nampa | ID | 83687 |
| Dalton Fabricators | 208-667-8711 | 5505 Govt Wy | Coeur D Alene | ID | 83814 |
| Energy Products Of Idaho | 208-765-1611 | 4006 S Industrial Ave | Coeur D Alene | ID | 83814 |
| High Mountain Industrial | 208-883-1021 | 3265 Lindville | Moscow | ID | 83844 |
| Hitech Welding | 208-734-4710 | 199 Canyon St | Twin Falls | ID | 83301 |
| Holley Welding | 208-357-7421 | 383 E 525 N | Firth | ID | 83236 |
| Horizon Steel | 208-745-0311 | 420 N 4000 E | Rigby | ID | 83442 |
| Howard J V Welding Works | 208-467-5341 | 1614 Industrial Rd | Nampa | ID | 83687 |
| Idaho Construction Co-General Office | 208-423-4162 | 3779 N 3400 E | Kimberly | ID | 83341 |
| Idaho Forge & Fabrication | 208-882-6549 | 1020 S Main St | Moscow | ID | 83843 |
| Idaho Pre-Cut Homes | 208-365-1134 | 2097 N Washington Ave | Emmett | ID | 83617 |
| Industrial Steel Fabricators | 208-387-1914 | 4855 Apple St | Boise | ID | 83705 |
| Inter West Ltd | 208-525-2595 | 1500 Jones St | Idaho Falls | ID | 83401 |
| Isom Brothers Inc | 208-459-6077 | 200 Evans St | Caldwell | ID | 83605 |
| J & K Portable Welding-Fabricating & Repair | 208-667-8208 | 325 N 16th St | Coeur D Alene | ID | 83814 |
| K & D Drafting | 208-344-4323 | 828 La Cassia Dr | Boise | ID | 83705 |
| K & K Blacksmith | 208-357-3730 | 149 S Emerson Ave | Shelley | ID | 83274 |
| K & T Steel Corp | 208-733-2554 | 322 Diamond Ave | Twin Falls | ID | 83301 |
| K & T Steel Corp | 208-233-2566 | 755 N Main St | Pocatello | ID | 83204 |
| Kevins Custom Welding | 208-543-8774 | 4235 N 1325 E | Buhl | ID | 83316 |
| Mcrae Welding & Manufacturing Co | 208-342-8299 | 405 E 37th St | Garden City | ID | 83714 |
| Mcs Repair | 208-263-1067 | 310 6th | Ponderay | ID | 83852 |
| Mikes Specialty Welding | 208-556-1594 | 630 E Mullan Ave | Osburn | ID | 83849 |
| Northwest Advanced Panels Sys | 208-785-0200 | 383 Collins St | Blackfoot | ID | 83221 |
| Outland Steel | 208-888-0071 | Franklin Blvd | Nampa | ID | 83687 |
| Outland Steel | 208-466-8410 | Franklin Blvd | Nampa | ID | 83687 |
| Paradise Valley Homes | 208-776-5809 | 9409 S Castle Ln | Lava Hot Springs | ID | 83246 |
| Prairie Fab & Repair | 208-983-9166 | RR 1 Box 8 | Grangeville | ID | 83530 |
| Q & S Fabrication & Construction | 208-237-5772 | 3770 Poleline Rd | Pocatello | ID | 83201 |
| Rule Steel Tank Inc | 208-585-3031 | 21986 Middleton Rd | Caldwell | ID | 83605 |
| Specialty Welding & Repair | 208-773-7884 | 1840 N Prairie View Dr | Post Falls | ID | 83854 |
| Squeekys Mini Storage | 208-263-2513 | Hwy 200 East | Kootenai | ID | 83840 |
| Steel West Inc | 208-237-1580 | 5690 Industry Way | Chubbuck | ID | 83202 |
| Summit Steel | 208-524-8096 | 3045 N 4th E | Idaho Falls | ID | 83401 |
| Three Island Integrated Industries | 208-366-2456 | 116 E Cleveland Ave | Glenns Ferry | ID | 83623 |
