| OCOverholtzer Church Interiors | Saint Ignatius | MT | Furniture and Related Product Manufacturing337127 | — | ◇ UNVERIFIED |
| PAP & A Properties LLC | Helena | MT | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| PMParagon Metal Fabrication, LLC | Bozeman | MT | Fabricated Metal Product Manufacturing332323 | — | ◇ UNVERIFIED |
| PDParamount Duct and Vent Cleaning LCC | Red Lodge | MT | Fabricated Metal Product Manufacturing332410 | — | ◇ UNVERIFIED |
| PLPCross, LLC dba The Baked Escape | Billings | MT | Food Manufacturing311813 | — | ◇ UNVERIFIED |
| PIPD2F, Inc. | Missoula | MT | Miscellaneous Manufacturing339920 | — | ◇ UNVERIFIED |
| PMPete's Meats LLC | Billings | MT | Food Manufacturing311612 | — | ◇ UNVERIFIED |
| PWPet Wellness Inc | Rexford | MT | Chemical Manufacturing325411 | — | ◇ UNVERIFIED |
| PCPhat Cabinets, INC. | Kalispell | MT | Furniture and Related Product Manufacturing337110 | — | ◇ UNVERIFIED |
 Phillips Environmental Products, INC. | Belgrade | MT | Plastics and Rubber Products Manufacturing326150 | — | ◇ UNVERIFIED |
| PHPierce Homes | Billings | MT | Wood Product Manufacturing321991 | — | ◇ UNVERIFIED |
| PCPioneer Concrete & Fuel INC | Butte | MT | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| PDPlastic Design Manufacturing (pdm) | Manhattan | MT | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| PDPlastic Design & Mfg., INC. | Manhattan | MT | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| PLP & L Pallet Repair | Great Falls | MT | Wood Product Manufacturing321920 | — | ◇ UNVERIFIED |
| PRPolson Ready Mix | Polson | MT | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| PIPolymeric Interconnect | Butte | MT | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| PMPrecast Mockel & Excavation, CO. | Helena | MT | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
 Precision Engineering, INC. | Kalispell | MT | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| PWPrecision Woodworks | Great Falls | MT | Furniture and Related Product Manufacturing337110 | — | ◇ UNVERIFIED |
| PIPride Industries, INC. | Billings | MT | Wood Product Manufacturing321214 | — | ◇ UNVERIFIED |
| PGPrinting Graphic Services | Missoula | MT | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| PAPrograde Ammo Group, LLC | Stevensville | MT | Fabricated Metal Product Manufacturing332992 | — | ◇ UNVERIFIED |
| PTPro Tank Products | Plentywood | MT | Fabricated Metal Product Manufacturing332420 | — | ◇ UNVERIFIED |
| PCProtech Capital Trust | Great Falls | MT | Fabricated Metal Product Manufacturing332311 | — | ◇ UNVERIFIED |
| PPPulz Product | Billings | MT | Fabricated Metal Product Manufacturing332322 | — | ◇ UNVERIFIED |
| PWP & W Property, LLC | Bozeman | MT | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| PMPyramid Mountain Lumber INC. | Seeley Lake | MT | Wood Product Manufacturing321113 | — | ◇ UNVERIFIED |
| QIQuake Industries, INC. | Manhattan | MT | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| QRQuartermoon Restrooms, LLC | Great Falls | MT | Plastics and Rubber Products Manufacturing326191 | — | ◇ UNVERIFIED |
| RWRausch Wood Products INC. | Alberton | MT | Wood Product Manufacturing321113 | — | ◇ UNVERIFIED |
| RLRed Lodge Beverages and Refreshments Inc. | Billings | MT | Beverage and Tobacco Product Manufacturing312111 | — | ◇ UNVERIFIED |
| RLRed Lodge Furniture Studio | Red Lodge | MT | Furniture and Related Product Manufacturing337110 | — | ◇ UNVERIFIED |
| RLRed Lodge Storage, LLC | Red Lodge | MT | Beverage and Tobacco Product Manufacturing312111 | — | ◇ UNVERIFIED |
| REReliable Enterprises Inc | Bozeman | MT | Furniture and Related Product Manufacturing337110 | — | ◇ UNVERIFIED |
| RPResonon Property Holdings, LLC | Bozeman | MT | Computer and Electronic Product Manufacturing334516 | — | ◇ UNVERIFIED |
| RNRicex Nutrients, INC. | Dillon | MT | Food Manufacturing311999 | — | ◇ UNVERIFIED |
| RRRim Rock Bullets | Ronan | MT | Fabricated Metal Product Manufacturing332992 | — | ◇ UNVERIFIED |
| RCRimrock Cabinet Company | Billings | MT | Furniture and Related Product Manufacturing337110 | — | ◇ UNVERIFIED |
| RCRiverside Contracting - 063-0049 | Seeley Lake | MT | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| RLR. L. Schaff Concrete Construction, INC. | Shepherd | MT | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| RWRmd Wholesale INC | Billings | MT | Wood Product Manufacturing321911 | — | ◇ UNVERIFIED |
| RARob Ames Cabinetry, LLC | Missoula | MT | Furniture and Related Product Manufacturing337110 | — | ◇ UNVERIFIED |
| RMRocky Mountain Asphalt, LLC | Belgrade | MT | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| RMRocky Mountain Doors | Billings | MT | Wood Product Manufacturing321911 | — | ◇ UNVERIFIED |
| RMRocky Mountain Ethanol | Hardin | MT | Chemical Manufacturing325193 | — | ◇ UNVERIFIED |
| RMRocky Mountain Truss CO. LLC | Stevensville | MT | Wood Product Manufacturing321214 | — | ◇ UNVERIFIED |
| RMRocky Mountain Windows & Doors LLC | Billings | MT | Wood Product Manufacturing321911 | — | ◇ UNVERIFIED |
| RIRomanarch INC. | Hamilton | MT | Food Manufacturing311612 | — | ◇ UNVERIFIED |
| RPR & P Fine Woodworking | Clinton | MT | Furniture and Related Product Manufacturing337110 | — | ◇ UNVERIFIED |
