| ALAbmt, LLC | Missoula | MT | Beverage and Tobacco Product Manufacturing312120 | — | ◇ UNVERIFIED |
| ABAbsolute Beautiful Creations in Stone, L.l.c. | Hamilton | MT | Furniture and Related Product Manufacturing337110 | — | ◇ UNVERIFIED |
| AAcutech | Columbia Falls | MT | Fabricated Metal Product Manufacturing332323 | — | ◇ UNVERIFIED |
| AAAcutech Arms, LLC | Columbia Falls | MT | Fabricated Metal Product Manufacturing332994 | — | ◇ UNVERIFIED |
| AMAdvanced Material Solutions | Missoula | MT | Machinery Manufacturing333912 | — | ◇ UNVERIFIED |
| APAdvanced Powder Coating | Kalispell | MT | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| ASAdvanced Silicon Materials Facility | Butte | MT | Chemical Manufacturing325188 | — | ◇ UNVERIFIED |
| ALAlcom, LLC | Bonner | MT | Machinery Manufacturing333924 | — | ◇ UNVERIFIED |
| AAllegra | Bozeman | MT | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| AHAlphagraphics Helena | Helena | MT | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| AMArch Metals, INC. | Belgrade | MT | Fabricated Metal Product Manufacturing332323 | — | ◇ UNVERIFIED |
| APArtcraft Printers, INC | Bozeman | MT | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| ABAti Bozeman INC | Bozeman | MT | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| ATAtlas Technologies INC | Bozeman | MT | Machinery Manufacturing333415 | — | ◇ UNVERIFIED |
| BGBad Goat Outdoors LLC | Lolo | MT | Machinery Manufacturing333924 | — | ◇ UNVERIFIED |
| BIBagel INC. | Billings | MT | Food Manufacturing311811 | — | ◇ UNVERIFIED |
| BSBattleground Supplements LLC | Great Falls | MT | Food Manufacturing311999 | — | ◇ UNVERIFIED |
| BCB C Concrete | Missoula | MT | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| BPBear Paw Custom Woodworks | Stevensville | MT | Furniture and Related Product Manufacturing337110 | — | ◇ UNVERIFIED |
| BBevco | Billings | MT | Furniture and Related Product Manufacturing337110 | — | ◇ UNVERIFIED |
| BBBig Bear Sign Company, INC. | Missoula | MT | Miscellaneous Manufacturing339950 | — | ◇ UNVERIFIED |
| BSBillings Seafood Guys LLC | Billings | MT | Food Manufacturing311710 | — | ◇ UNVERIFIED |
| BSBillings Sign Service | Billings | MT | Miscellaneous Manufacturing339950 | — | ◇ UNVERIFIED |
 Bitterroot Tool & Machine LLC. | Stevensville | MT | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| BDBlack Diamond Marketing, INC. | Stevensville | MT | Food Manufacturing311119 | — | ◇ UNVERIFIED |
| BTBlackfoot Timber Products LLC | Lincoln | MT | Wood Product Manufacturing321113 | — | ◇ UNVERIFIED |
| B0Blankenship - 093-0012 | Butte | MT | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| BBmc | Helena | MT | Wood Product Manufacturing321214 | — | ◇ UNVERIFIED |
| BWBmc West, LLC | Kalispell | MT | Wood Product Manufacturing321214 | — | ◇ UNVERIFIED |
| BWBob's Woodworks | Hamilton | MT | Furniture and Related Product Manufacturing337110 | — | ◇ UNVERIFIED |
| BEBradshaw Enterprises, Inc. | Kalispell | MT | Wood Product Manufacturing321215 | — | ◇ UNVERIFIED |
| BPBrenntag Pacific, INC. | Laurel | MT | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| BIBrewhalla, Inc | Billings | MT | Beverage and Tobacco Product Manufacturing312120 | — | ◇ UNVERIFIED |
| BBBridger Brewing Company, LLC | Three Forks | MT | Beverage and Tobacco Product Manufacturing312120 | — | ◇ UNVERIFIED |
| BBBrooklyn Bagel and Bakery LLC | Missoula | MT | Food Manufacturing311811 | — | ◇ UNVERIFIED |
| BBBrophy Bakery LLC | Red Lodge | MT | Food Manufacturing311812 | — | ◇ UNVERIFIED |
| BGBrubaker Grinding, LLC | Joliet | MT | Food Manufacturing311119 | — | ◇ UNVERIFIED |
| BSBucksnort Soda Company LLC | Bozeman | MT | Beverage and Tobacco Product Manufacturing312111 | — | ◇ UNVERIFIED |
| BGBudget Game Processing, INC. | Belgrade | MT | Food Manufacturing311615 | — | ◇ UNVERIFIED |
| BBvac | Stevensville | MT | Fabricated Metal Product Manufacturing332993 | — | ◇ UNVERIFIED |
| CMCabinet Mountain Woodworks | Trout Creek | MT | Furniture and Related Product Manufacturing337110 | — | ◇ UNVERIFIED |
| CFCakes for Thought LLC | Great Falls | MT | Food Manufacturing311811 | — | ◇ UNVERIFIED |
| CSCanadian-american Structured Solutions, INC | Billings | MT | Wood Product Manufacturing321991 | — | ◇ UNVERIFIED |
| CBCC Bernhardt LL | Red Lodge | MT | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| CTCentennial Timber Frames | Columbia Falls | MT | Wood Product Manufacturing321213 | — | ◇ UNVERIFIED |
| C0Century - 021-0002 | Glendive | MT | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| C0Century - 027-0004 | Lewistown | MT | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| CFCereal Food Processors, INC. | Great Falls | MT | Food Manufacturing311211 | — | ◇ UNVERIFIED |
| CCCherry Creek Cabinets & Countertops LLC | Thompson Falls | MT | Furniture and Related Product Manufacturing337110 | — | ◇ UNVERIFIED |
| CIChs, INC. | Laurel | MT | Petroleum and Coal Products Manufacturing324110 | — | ◇ UNVERIFIED |
