| CACowboy Asphalt | Tulsa | OK | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| CCCow Crazy, INC. | Adair | OK | Miscellaneous Manufacturing339930 | — | ◇ UNVERIFIED |
| CICpco, INC. | Claremore | OK | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| CACreate and Manufacture, LLC | Tulsa | OK | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| CACreate and Manufacture, LLC | Tulsa | OK | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| CRCri Recycling Services LLC | Sand Springs | OK | Petroleum and Coal Products Manufacturing324191 | — | ◇ UNVERIFIED |
| CCCross Country, LLC | Blanchard | OK | Printing and Related Support Activities323113 | — | ◇ UNVERIFIED |
| CFCrossroads Feed & Farm LLC | Asher | OK | Food Manufacturing311119 | — | ◇ UNVERIFIED |
| CHCrow Hopper Holdings LLC | Oklahoma City | OK | Miscellaneous Manufacturing339991 | — | ◇ UNVERIFIED |
| CIC.s.c INC | Tuttle | OK | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| CCCummins Construction CO INC / Cummins Plant 2758 | Claremore | OK | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| CBCushing Batch Plant | Cushing | OK | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CCCustom Coatings of Broken Arrow, INC. | Broken Arrow | OK | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| CCCustom Copper Designs | Edmond | OK | Fabricated Metal Product Manufacturing332322 | — | ◇ UNVERIFIED |
| CWCustom Wood Fibers & Cedar Mulch, LLC | Oklahoma City | OK | Wood Product Manufacturing321999 | — | ◇ UNVERIFIED |
| DSDalmarc Signs | Mustang | OK | Miscellaneous Manufacturing339950 | — | ◇ UNVERIFIED |
| DODal-tile of Muskogee | Muskogee | OK | Nonmetallic Mineral Product Manufacturing327122 | — | ◇ UNVERIFIED |
| DCDart Container Corporation | Ada | OK | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| DMDcp Midstream LP | Okarche | OK | Chemical Manufacturing325110 | — | ◇ UNVERIFIED |
| DDD & D Design Manufacturing INC. | Oklahoma City | OK | Fabricated Metal Product Manufacturing332313 | — | ◇ UNVERIFIED |
| DCDean Ceg LLC | Burns Flat | OK | Chemical Manufacturing325193 | — | ◇ UNVERIFIED |
| DBDeere Built, LLC | Ardmore | OK | Fabricated Metal Product Manufacturing332311 | — | ◇ UNVERIFIED |
| DLDeerebuilt, LLC | Ardmore | OK | Fabricated Metal Product Manufacturing332420 | — | ◇ UNVERIFIED |
| DLDefi Laser Company LLC | Sapulpa | OK | Machinery Manufacturing333515 | — | ◇ UNVERIFIED |
| DYDelbert Young Sheet Metal Service | Ardmore | OK | Fabricated Metal Product Manufacturing332322 | — | ◇ UNVERIFIED |
| DEDevault Enterprises, INC | Broken Arrow | OK | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| DWdeVine Water, LLC | Jet | OK | Beverage and Tobacco Product Manufacturing312112 | — | ◇ UNVERIFIED |
| DMDilbeck Manufacturing, INC. | Tulsa | OK | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| DCDnow Cyril Flowline (formerly Nov Wilson Flowline) | Cyril | OK | Computer and Electronic Product Manufacturing334519 | — | ◇ UNVERIFIED |
| DSDoing Steel, INC. | Stillwater | OK | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| DBDolese Bros. CO. | Elk City | OK | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| DBDolese Bros Co.- Bixby | Bixby | OK | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| DBDolese Bros. CO. - Mohawk | City of Tulsa | OK | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| DBDolese Brothers Company | Edmond | OK | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| DBDon Bateman Sheet Metal Fabrication | Sapulpa | OK | Fabricated Metal Product Manufacturing332322 | — | ◇ UNVERIFIED |
| DTDoner Tooling and Mold | Chelsea | OK | Plastics and Rubber Products Manufacturing326121 | — | ◇ UNVERIFIED |
| DYDon Young Company, INC. | Oklahoma City | OK | Fabricated Metal Product Manufacturing332321 | — | ◇ UNVERIFIED |
| DPDorada Poultry, LLC | Ponca City | OK | Food Manufacturing311615 | — | ◇ UNVERIFIED |
| DRDough Rollers, LLC | Vinita | OK | Food Manufacturing311812 | — | ◇ UNVERIFIED |
| DLDucommun Labarge Technologies INC / Ducommun Labarge Technologies INC | Tulsa | OK | Computer and Electronic Product Manufacturing334418 | — | ◇ UNVERIFIED |
| DFDuct Fabrication Company, INC. | Oklahoma City | OK | Fabricated Metal Product Manufacturing332322 | — | ◇ UNVERIFIED |
| DHDunham Heat Flow Products | Tulsa | OK | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| DVD & V Manufacturing, INC. | Sand Springs | OK | Machinery Manufacturing333249 | — | ◇ UNVERIFIED |
| ECEads Cooling Solutions, LLC | Catoosa | OK | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| EREagle Redi-mix Concrete, LLC - Plant No. 11 | Bixby | OK | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| ESEagle Suspensions | Durant | OK | Fabricated Metal Product Manufacturing332611 | — | ◇ UNVERIFIED |
| EOEast Oak Rng Plant | Oklahoma City | OK | Chemical Manufacturing325120 | — | ◇ UNVERIFIED |
| E2Eco 2007 | Broken Arrow | OK | Fabricated Metal Product Manufacturing332410 | — | ◇ UNVERIFIED |
| EEds | Oklahoma City | OK | Computer and Electronic Product Manufacturing334111 | — | ◇ UNVERIFIED |
| EVEichler Valve | Edmond | OK | Fabricated Metal Product Manufacturing332911 | — | ◇ UNVERIFIED |
