| CNChs Nutrition | Great Falls | MT | Food Manufacturing311119 | — | ◇ UNVERIFIED |
| CNChs Nutrition - Circle | Circle | MT | Food Manufacturing311119 | — | ◇ UNVERIFIED |
| CLCinco LLC | Whitefish | MT | Furniture and Related Product Manufacturing337110 | — | ◇ UNVERIFIED |
| COCity of Wolf Point Asphalt Plant | Wolf Point | MT | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| CIClark Industrial INC. | Missoula | MT | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| CMClawson Mfg | Missoula | MT | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
 Coca Cola Bottling Company High Country | Billings | MT | Beverage and Tobacco Product Manufacturing312111 | — | ◇ UNVERIFIED |
| CWColor World of Montana, INC. | Bozeman | MT | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| CPColumbus Processing Facility | Columbus | MT | Primary Metal Manufacturing331419 | — | ◇ UNVERIFIED |
| CMCompatible Manufacturing, INC. | Kalispell | MT | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| CCConceptual Creations LLC | Black Eagle | MT | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| CEConnor Enterprises, LLC | Helena | MT | Computer and Electronic Product Manufacturing334516 | — | ◇ UNVERIFIED |
| CMContact Mining Company | Philipsburg | MT | Primary Metal Manufacturing331410 | — | ◇ UNVERIFIED |
| CBCopperwood Brewing LLC | Kalispell | MT | Beverage and Tobacco Product Manufacturing312120 | — | ◇ UNVERIFIED |
| CRCopy Right LLC | Billings | MT | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| CRCopy Right LLC | Billings | MT | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| CICpm, INC. | Billings | MT | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| CCCraigs Custom Cabinets | Helena | MT | Furniture and Related Product Manufacturing337110 | — | ◇ UNVERIFIED |
| CCCrown Creations Cabinetmakers, INC. | Livingston | MT | Furniture and Related Product Manufacturing337110 | — | ◇ UNVERIFIED |
| CPCrown Parts & Machine | Billings | MT | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| CBCt Builders | Great Falls | MT | Fabricated Metal Product Manufacturing332311 | — | ◇ UNVERIFIED |
| CICustom Ii Metal Fabrication and Welding | Bozeman | MT | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| DIDalco Industries | Billings | MT | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| DCDavis Cabinetry | Bozeman | MT | Furniture and Related Product Manufacturing337110 | — | ◇ UNVERIFIED |
| DIDawkmar, Inc | Bozeman | MT | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| DSDenning Sheet Metal, INC | Columbia Falls | MT | Fabricated Metal Product Manufacturing332322 | — | ◇ UNVERIFIED |
| DLDermaxon, LLC | Missoula | MT | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| DFDesigns for Health | Arlee | MT | Food Manufacturing311999 | — | ◇ UNVERIFIED |
| DSDesign Special Tees, LLC | Saint Ignatius | MT | Printing and Related Support Activities323113 | — | ◇ UNVERIFIED |
| DPDTS Pallets LLC | Billings | MT | Wood Product Manufacturing321920 | — | ◇ UNVERIFIED |
| DEDucharme Enterprises, L.l.c. | Noxon | MT | Wood Product Manufacturing321113 | — | ◇ UNVERIFIED |
| ESEagle Stud Mill | Missoula | MT | Wood Product Manufacturing321113 | — | ◇ UNVERIFIED |
| ESEagle Stud Mill, INC. | Hall | MT | Wood Product Manufacturing321113 | — | ◇ UNVERIFIED |
| EEEarth Elements Fabrication, LLC. | Bozeman | MT | Furniture and Related Product Manufacturing337110 | — | ◇ UNVERIFIED |
| EAEJ and K Holdings LLC | Kalispell | MT | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| ECEmily Carol Investments, LLC | Billings | MT | Food Manufacturing311812 | — | ◇ UNVERIFIED |
| EUEnki USA LLC | Bozeman | MT | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| EAEstes Advantage | Kalispell | MT | Furniture and Related Product Manufacturing337212 | — | ◇ UNVERIFIED |
| EPEureka Pellet Mill | Superior | MT | Wood Product Manufacturing321920 | — | ◇ UNVERIFIED |
| EPEureka Pellet Mills INC | Missoula | MT | Wood Product Manufacturing321912 | — | ◇ UNVERIFIED |
| EGEver Goods, LLC | Bozeman | MT | Textile Product Mills314910 | — | ◇ UNVERIFIED |
| EWEvergreen Wood Products, LLC | Moore | MT | Wood Product Manufacturing321920 | — | ◇ UNVERIFIED |
| EPEvolution Pyrotechnics Manufacturing, INC. | Acton | MT | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| EExpertech | Billings | MT | Computer and Electronic Product Manufacturing334413 | — | ◇ UNVERIFIED |
| FSFiberglass Structures - Tank Division | Laurel | MT | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| FMFire Mountain Forge, LLC | Livingston | MT | Fabricated Metal Product Manufacturing332111 | — | ◇ UNVERIFIED |
| FBFleur Bake Shop LLC | Whitefish | MT | Food Manufacturing311813 | — | ◇ UNVERIFIED |
| FBFlours Bakery LLC | Billings | MT | Food Manufacturing311811 | — | ◇ UNVERIFIED |
| FLFlynn Lane - 063-0012 | Missoula | MT | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| FMFormer Mintana Mills Business | Billings | MT | Textile Mills313110 | — | ◇ UNVERIFIED |
