| IMIcco Middelton | Caldwell | ID | Nonmetallic Mineral Product Manufacturing327320 | 20-99 | ◐ LIKELY ACTIVE |
| ICInterstate Concrete and Asphalt | Rathdrum | ID | Petroleum and Coal Products Manufacturing324121 | 100-499 | ◐ LIKELY ACTIVE |
| LFLucky Friday Mine | Mullan | ID | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| MMMemorial Monuments Meridian | Meridian | ID | Nonmetallic Mineral Product Manufacturing327390 | 20-99 | ◐ LIKELY ACTIVE |
| WRWalters Ready Mix INC | Rexburg | ID | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| AMAdvanced Marble and Granite, INC. | Meridian | ID | Nonmetallic Mineral Product Manufacturing327991 | 20-99 | ◐ LIKELY ACTIVE |
| BBBasalite - Boise | Meridian | ID | Nonmetallic Mineral Product Manufacturing327331 | 20-99 | ◐ LIKELY ACTIVE |
| BRB.f. Redi-mix, INC. | Bonners Ferry | ID | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| BCBurns Concrete INC | Idaho Falls | ID | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| CCaldwell-Maddens | Caldwell | ID | Nonmetallic Mineral Product Manufacturing327320 | 100-499 | ◐ LIKELY ACTIVE |
| CRCDA Redi Mix & Precast | Post Falls | ID | Nonmetallic Mineral Product Manufacturing327320 | 100-499 | ◐ LIKELY ACTIVE |
| DRDahle's Red-e-mix INC | Salmon | ID | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| DRDixie River Caldwell Idaho | Caldwell | ID | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| FNFlamingo Nampa Idaho | Nampa | ID | Nonmetallic Mineral Product Manufacturing327320 | 20-99 | ◐ LIKELY ACTIVE |
| FMFLOFORM Mesa | Meridian | ID | Nonmetallic Mineral Product Manufacturing327991 | 100-499 | ◐ LIKELY ACTIVE |
| GBGlaz-tech Boise | Boise | ID | Nonmetallic Mineral Product Manufacturing327215 | 20-99 | ◐ LIKELY ACTIVE |
| GLGreg L Hoskins | Blackfoot | ID | Nonmetallic Mineral Product Manufacturing327390 | — | ◐ LIKELY ACTIVE |
| IFIdaho Falls Idaho | Idaho Falls | ID | Nonmetallic Mineral Product Manufacturing327320 | 20-99 | ◐ LIKELY ACTIVE |
| IMIdaho Meridian 3540 E Lanark Street | Meridian | ID | Nonmetallic Mineral Product Manufacturing327991 | 1-19 | ◐ LIKELY ACTIVE |
| IKIMC - Ketchum/Bellevue | Bellevue | ID | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| IMIMC- Mountain Home | Mountain Home | ID | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| JBJoplin Boise, Idaho | Boise | ID | Nonmetallic Mineral Product Manufacturing327320 | 20-99 | ◐ LIKELY ACTIVE |
| NRNational Ready Mix - R-118 Idaho Falls | Idaho Falls | ID | Nonmetallic Mineral Product Manufacturing327320 | 20-99 | ◐ LIKELY ACTIVE |
| PMPocatello Memorial Monuments | Pocatello | ID | Nonmetallic Mineral Product Manufacturing327390 | 20-99 | ◐ LIKELY ACTIVE |
| SCSEK Corporation / Thompson | Caldwell | ID | Nonmetallic Mineral Product Manufacturing327390 | 1-19 | ◐ LIKELY ACTIVE |
| SSSoda Springs Ready Mix | Soda Springs | ID | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| TFTwin Falls Ready Mix | Twin Falls | ID | Nonmetallic Mineral Product Manufacturing327320 | 20-99 | ◐ LIKELY ACTIVE |
| TTTucker Technical Solutions, INC. | Idaho Falls | ID | Nonmetallic Mineral Product Manufacturing327215 | — | ◐ LIKELY ACTIVE |