| GLGraves Land Company, LLC | Oklahoma City | OK | Miscellaneous Manufacturing339950 | — | ◇ UNVERIFIED |
| GAGray and Sons Sawmill & Supply LLC | Durant | OK | Wood Product Manufacturing321912 | — | ◇ UNVERIFIED |
| GPGreat Plains Rebar, LLC | Oklahoma City | OK | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| GCGreen Country Marble | Bixby | OK | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| GCGreen Country Shipping Solutions LLC | Collinsville | OK | Wood Product Manufacturing321920 | — | ◇ UNVERIFIED |
| GCGreenhill Concrete Products, INC. Portable Concrete Plant | Jenks | OK | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| HLHaninger, LLC | Tulsa | OK | Transportation Equipment Manufacturing336399 | — | ◇ UNVERIFIED |
| HPHanson Pipe & Precast INC | Oklahoma City | OK | Nonmetallic Mineral Product Manufacturing327332 | — | ◇ UNVERIFIED |
| HSHarmony Star Fabrication LLC | Tulsa | OK | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| HGHarrison Gypsum Dba Arcosa Specialty Materials - Mooreland Plant | Mooreland | OK | Nonmetallic Mineral Product Manufacturing327420 | — | ◇ UNVERIFIED |
| HIHarwell Industries | Oklahoma City | OK | Fabricated Metal Product Manufacturing332322 | — | ◇ UNVERIFIED |
| HBH & B Machine & Manufacturing, INC. | Chickasha | OK | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| HMHe & M INC | Pryor | OK | Machinery Manufacturing333512 | — | ◇ UNVERIFIED |
| HSHigh Summit Capital II LLC | Tulsa | OK | Fabricated Metal Product Manufacturing332911 | — | ◇ UNVERIFIED |
| HTHigh Tech Tack LLC | Minco | OK | Leather and Allied Product Manufacturing316998 | — | ◇ UNVERIFIED |
| HMHignite Metal Fabricating | Rush Springs | OK | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| HMHill Manufacturing, INC. | Broken Arrow | OK | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| H3Hirsch 3667 Coporation | Clinton | OK | Fabricated Metal Product Manufacturing332321 | — | ◇ UNVERIFIED |
| HIHitech, INC. | Moore | OK | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| HIHmt, INC. | Blackwell | OK | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| HRHolly Refining & Marketing - Tulsa LLC | Tulsa | OK | Petroleum and Coal Products Manufacturing324110 | — | ◇ UNVERIFIED |
| HTHolt Trailerworks LLC | Asher | OK | Transportation Equipment Manufacturing336212 | — | ◇ UNVERIFIED |
| HTHolt Trailerworks LLC | Tulsa | OK | Transportation Equipment Manufacturing336212 | — | ◇ UNVERIFIED |
| HLHomegrown LG OK LLC | Locust Grove | OK | Food Manufacturing311611 | — | ◇ UNVERIFIED |
| HLHomegrown LG OK LLC | Locust Grove | OK | Food Manufacturing311611 | — | ◇ UNVERIFIED |
| HIHomeland Investment Properties, LLC | Tulsa | OK | Food Manufacturing311812 | — | ◇ UNVERIFIED |
| HMHomestead Meats & Processing LLC | Guthrie | OK | Food Manufacturing311611 | — | ◇ UNVERIFIED |
| HMHomestead Meats & Processing LLC | Guthrie | OK | Food Manufacturing311611 | — | ◇ UNVERIFIED |
| HCHonor Companies LLC | Sapulpa | OK | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| HMHopkins Manufacturing Corporation | Miami | OK | Plastics and Rubber Products Manufacturing326121 | — | ◇ UNVERIFIED |
| HMHorizon Manufacturing, Inc. | Stillwater | OK | Electrical Equipment, Appliance & Component Manufacturing335220 | — | ◇ UNVERIFIED |
| HAHosie Aerospace Services, LLC | Skiatook | OK | Transportation Equipment Manufacturing336411 | — | ◇ UNVERIFIED |
| HKHowco Kiefer | Kiefer | OK | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
 Huber Engineered Woods LLC | Broken Bow | OK | Wood Product Manufacturing321211 | — | ◇ UNVERIFIED |
| HLHurricanefabric.com LLC | Tulsa | OK | Wood Product Manufacturing321911 | — | ◇ UNVERIFIED |
| HMH-v Manufacturing Company | Okmulgee | OK | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| HHHydo Hoist Marine Group | Claremore | OK | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| HFHydro Foam Techonlogy, INC. | Perkins | OK | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| HTHydrotex Tulsa Manufacturing | Tulsa | OK | Petroleum and Coal Products Manufacturing324191 | — | ◇ UNVERIFIED |
| HIHypro INC. | Vinita | OK | Machinery Manufacturing333512 | — | ◇ UNVERIFIED |
| IUIcehouse Urban Creamery, LLC | Edmond | OK | Food Manufacturing311512 | — | ◇ UNVERIFIED |
| IMImperial Management, LLC | Newkirk | OK | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| IPImpressions Printing and Copying Services INC | Oklahoma City | OK | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| IAIndustrial Axle Company, LLC | Shawnee | OK | Transportation Equipment Manufacturing336350 | — | ◇ UNVERIFIED |
| IFIndustrial Fabrication Services, LLC | Sand Springs | OK | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| ISIndustrial Signs & Neon | Oklahoma City | OK | Miscellaneous Manufacturing339950 | — | ◇ UNVERIFIED |
| ILInkBot LLC | Owasso | OK | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| ISIns Specialties, LLC | Claremore | OK | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| ITIntegrated Tower Systems | Tulsa | OK | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| IBInterstate Brands Corporation | Oklahoma City | OK | Food Manufacturing311812 | — | ◇ UNVERIFIED |
