| HLHemphill LLC | Tulsa | OK | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| HPHenryetta Pallet CO INC / on Site Air Curtain Incinerator | Henryetta | OK | Wood Product Manufacturing321920 | — | ◇ UNVERIFIED |
| HDHiland Dairy Food Company, LLC | Tulsa | OK | Food Manufacturing311511 | — | ◇ UNVERIFIED |
| HCH-i-s Coatings | Oklahoma City | OK | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| HCHitachi Computer Products INC / 1800 E Imhoff Norman | Norman | OK | Computer and Electronic Product Manufacturing334112 | — | ◇ UNVERIFIED |
| HGHoskins Gypsum CO LLC / Hoskins Gypsum CO | Watonga | OK | Nonmetallic Mineral Product Manufacturing327420 | — | ◇ UNVERIFIED |
| HOHubbell Okc Family | Oklahoma City | OK | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| HCHughes Christensen CO / Beta Test Facility | Beggs | OK | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| IUIkg USA | Sand Springs | OK | Fabricated Metal Product Manufacturing332323 | — | ◇ UNVERIFIED |
| ICImation CORP | Weatherford | OK | Computer and Electronic Product Manufacturing334610 | — | ◇ UNVERIFIED |
| IPInternational Paper | Oklahoma City | OK | Paper Manufacturing322211 | — | ◇ UNVERIFIED |
| IRIofina Resources, INC. (io7) | Dacoma | OK | Chemical Manufacturing325180 | — | ◇ UNVERIFIED |
| ITIpsco Tubulars Oklahoma INC / 5610 Bird Creek Ave | Catoosa | OK | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| JMJacobs Mfg Corp/499 Ind Blvd Jacobs | Grove | OK | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| JAJ and R Constructors Group LLC / Plant 2 Cmi Ptd 400 | Boise City | OK | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| JMJm Manufacturing-tulsa Plant | Tulsa | OK | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| JCJob Const CO Inc/plt 27 2 Clayton | Hartshorne | OK | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| JCJob Construction CO INC / Terex Plant | Sallisaw | OK | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
 Johns Manville / 812 N Bryant Ave | Oklahoma City | OK | Petroleum and Coal Products Manufacturing324122 | — | ◇ UNVERIFIED |
| KVKemper Valve and Fitting CORP / Kemper Valve CORP | Sulphur | OK | Fabricated Metal Product Manufacturing332721 | — | ◇ UNVERIFIED |
| L3L 3 Communication/westwood CORP Nmp Division | Tulsa | OK | Electrical Equipment, Appliance & Component Manufacturing335312 | — | ◇ UNVERIFIED |
| LFLazarus Forest Products LLC / Treating Plt | Idabel | OK | Wood Product Manufacturing321114 | — | ◇ UNVERIFIED |
| LCLinde Claremore Ok | Claremore | OK | Chemical Manufacturing325120 | — | ◇ UNVERIFIED |
| LSLiquidpower Specialty Products INC. | Chickasha | OK | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| LTLufthansa Technik Engine Services | Tulsa | OK | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| MRMadill Rmc Plant | Madill | OK | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MIMadison INC / 8500 New Sapulpa Rd | Tulsa | OK | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| MSMark-k Specialized Manufacturing, INC. | Oklahoma City | OK | Transportation Equipment Manufacturing336370 | 20-99 | ◇ UNVERIFIED |
| MPMars Petcare US INC / Miami Pet Food Processing Plant | Miami | OK | Food Manufacturing311111 | — | ◇ UNVERIFIED |
| MPMastercraft Pattern and Model Works INC / Fiberglass Reinforced Plastic Mfg Faci | North Miami | OK | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| MDMcdonnell Douglas Tulsa | Tulsa | OK | Transportation Equipment Manufacturing336411 | — | ◇ UNVERIFIED |
| MWMd Wood Llc/oklahoma City Mfg Fa | Oklahoma City | OK | Wood Product Manufacturing321999 | — | ◇ UNVERIFIED |
| MCMill Creek Lumber Dba Wood Systems INC / Wood Systems Tulsa Facility | Tulsa | OK | Wood Product Manufacturing321918 | — | ◇ UNVERIFIED |
| NCNalco CO Tulsa Plant 102 | Tulsa | OK | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| NONational Oilwell Varco/ Flanagan Iron Works | Tulsa | OK | Machinery Manufacturing333911 | — | ◇ UNVERIFIED |
| NONational Oilwell Varco LP - Mcalester W / Nov Mcalester Rig Operations | Mcalester | OK | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| NONational Oilwell Varco LP - Mission Pro / Nov Completion and Production Solution | Oklahoma City | OK | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| NRNeo Rare Metals (ok), LLC. | Quapaw | OK | Chemical Manufacturing325180 | — | ◇ UNVERIFIED |
| NRNordam Repair Division | Tulsa | OK | Transportation Equipment Manufacturing336413 | — | ◇ UNVERIFIED |
| NANorth American Galvanizing CO. Plant2 | Tulsa | OK | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| NBNorth Broadway Batch Plant | Oklahoma City | OK | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| NFNov Fiber Glass Systems, LP Aka Containment Solutions, INC. | Tulsa | OK | Plastics and Rubber Products Manufacturing326122 | — | ◇ UNVERIFIED |
| NTNov Tuboscope Edmond Coating Plant | Edmond | OK | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| NLNxtnano LLC / Newco Nano Facility | Claremore | OK | Textile Product Mills314999 | — | ◇ UNVERIFIED |
| OCOcv Control Valves Precision Coatings / Ocv Control Valves Precision Coatings | Tulsa | OK | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| OFOklahoma Forge | Tulsa | OK | Fabricated Metal Product Manufacturing332111 | — | ◇ UNVERIFIED |
| OLOklahoma Leather Products INC / Oklahoma Leather Prod INC | Miami | OK | Leather and Allied Product Manufacturing316990 | — | ◇ UNVERIFIED |
| OMOklahoma Materials Recycling | Atoka | OK | Chemical Manufacturing325180 | — | ◇ UNVERIFIED |
| OPOklahoma Pole and Lumber INC / Oklahoma Pole and Lumber INC | Broken Bow | OK | Wood Product Manufacturing321114 | — | ◇ UNVERIFIED |
| OGOldcastle Glass INC. (dba Oldcastle Glass Shawnee) | Shawnee | OK | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
