| HEHarts Engine Service | Princeton | WV | — | ◇ UNVERIFIED |
| HCHartwell CORP | Rancho Cucamonga | CA | — | ◇ UNVERIFIED |
| HWHartwig Wichita | Wichita | KS | — | ◇ UNVERIFIED |
| HVHarvest Valley Specialties INC | Eugene | OR | — | ◇ UNVERIFIED |
| HEHarvey Enterprises | Pago Pago | AS | — | ◇ UNVERIFIED |
| HIHarwell Industries | Oklahoma City | OK | — | ◇ UNVERIFIED |
| HIHaseltine Industrial Engravers INC | Mountain View | CA | — | ◇ UNVERIFIED |
| HMHastings Machine Company | Hastings | PA | — | ◇ UNVERIFIED |
| HAHasty Awards INC | Ottawa | KS | — | ◇ UNVERIFIED |
| HSHatch Stamping and Assembly LLC | Chelsea | MI | — | ◇ UNVERIFIED |
| HIHauser Investment Properties 2, LLC | Lynn | IN | — | ◇ UNVERIFIED |
| HMHawkeye Mold & Design Co. | Charles City | IA | — | ◇ UNVERIFIED |
| HFHawk Fabricators | Birmingham | AL | — | ◇ UNVERIFIED |
| HQHawk Quality Products INC | Derry | NH | — | ◇ UNVERIFIED |
| HAHawks & Assoiciates, INC. | Cincinnati | OH | — | ◇ UNVERIFIED |
| HTHawk Tool & Machine INC | Wixom | MI | — | ◇ UNVERIFIED |
| HMHawthorne Machinery CO | San Diego | CA | — | ◇ UNVERIFIED |
| HIHayden Industrial Products | Corona | CA | — | ◇ UNVERIFIED |
| HMHayes Metal Finishing, INC. | Dayton | OH | — | ◇ UNVERIFIED |
| HSHayman Safe Company | Oviedo | FL | — | ◇ UNVERIFIED |
| HQHazlehurst Quality Machine and Fabrication, INC. | Hazlehurst | GA | — | ◇ UNVERIFIED |
| HCHazleton Custom Metal Products INC. | Hazleton | PA | — | ◇ UNVERIFIED |
| HIHbd Industries Incorporated | Salisbury | NC | — | ◇ UNVERIFIED |
| HBH B Ives CO (harrow Products) | New Haven | CT | — | ◇ UNVERIFIED |
| HBH & B Machine & Manufacturing, INC. | Chickasha | OK | — | ◇ UNVERIFIED |
| HPHbp Pressure Pipe INC | Bakewell | TN | — | ◇ UNVERIFIED |
| HBH. Brauning Co., INC. | Manassas | VA | — | ◇ UNVERIFIED |
| HSHBT Smokers, LLC | Guntersville | AL | — | ◇ UNVERIFIED |
| HCH C Chandler & Son INC | Plantersville | TX | — | ◇ UNVERIFIED |
| HCH. C. Wade Sheet Metal Works | Martinsville | VA | — | ◇ UNVERIFIED |
| HMHdh Manufacturing Inc | Indianapolis | IN | — | ◇ UNVERIFIED |
| HFHdn F&a INC | Battle Creek | MI | — | ◇ UNVERIFIED |
| HPHeader Products INC | Rose City | MI | — | ◇ UNVERIFIED |
| HLHead Lift Repair | South El Monte | CA | — | ◇ UNVERIFIED |
| HIHeadway Ind INC | Lakewood | CO | — | ◇ UNVERIFIED |
| HMHeartland Machine - Tool INC | Brainerd | MN | — | ◇ UNVERIFIED |
| HWHeartland Water Technology, INC | Murfreesboro | TN | — | ◇ UNVERIFIED |
| HCHeater Craft Marine Products, INC | Rathdrum | ID | — | ◇ UNVERIFIED |
| HSHeatland Stainless INC. | Wayne | NE | — | ◇ UNVERIFIED |
| HTHeat Transfer Specialists of Louisiana, INC. | Baton Rouge | LA | — | ◇ UNVERIFIED |
| HEHeavy Equipment Repair INC | White Bear Lake | MN | — | ◇ UNVERIFIED |
| HEHeavy Equipment Repair INC | Saint Paul | MN | — | ◇ UNVERIFIED |
| HCHechimovich Custom Machining, Inc. | Hartford | WI | — | ◇ UNVERIFIED |
| HMHecksel Machine INC | Watertown | MN | — | ◇ UNVERIFIED |
| HEH&e Equipment Services | Norwalk | CA | — | ◇ UNVERIFIED |
| HMHegar Manufacturing INC | Clackamas | OR | — | ◇ UNVERIFIED |
| HCHeico Corporation | Glastonbury | CT | — | ◇ UNVERIFIED |
| HSHeidtman Steel Products, INC. | Toledo | OH | — | ◇ UNVERIFIED |
| HMHeim Machine LLC | Green Bay | WI | — | ◇ UNVERIFIED |
| HMHeim Machine LLC | Green Bay | WI | — | ◇ UNVERIFIED |
| HMHeim Machine LLC | Green Bay | WI | — | ◇ UNVERIFIED |
| HEHeinz Engineering, Inc. | Gardena | CA | — | ◇ UNVERIFIED |
 Helander Metal Spinning Company | Addison | IL | — | ◇ UNVERIFIED |
| Helander Metal Spinning Company | Lombard | IL | — | ◇ UNVERIFIED |
| HPHeleniak Properties, LLC | Plainville | CT | — | ◇ UNVERIFIED |
| HMHELI-ARC Manufacturing Corp. | Owasso | OK | — | ◇ UNVERIFIED |
| HEHelicopter Express Fab Shop | White City | OR | — | ◇ UNVERIFIED |
| HCHelmick CORP | Fairmont | WV | — | ◇ UNVERIFIED |
| HMHelton Machine CO | Walton | KY | — | ◇ UNVERIFIED |
| HFHendricks Fabrication, INC. | Piedmont | SC | — | ◇ UNVERIFIED |
| HMHennemuth Metal Fabricators, INC. | Oakdale | PA | — | ◇ UNVERIFIED |
| HIHennig, INC. Marlin | Machesney Park | IL | — | ◇ UNVERIFIED |
| HFHenry Fletcher | Rancho Cordova | CA | — | ◇ UNVERIFIED |
| HHHenry H. Smith and Company | Algonac | MI | — | ◇ UNVERIFIED |
| HSHenry Station LLC | Ukiah | CA | — | ◇ UNVERIFIED |
| HMHenson Manufacturing & Sales | Adair | OK | — | ◇ UNVERIFIED |
| HLHephcan LLC | Toledo | OH | — | ◇ UNVERIFIED |
| HMHerald Machine Works INC | East Chicago | IN | — | ◇ UNVERIFIED |
| HMHerald Machine Works, INC. | Gary | IN | — | ◇ UNVERIFIED |
| HJHerbert Joe Howton and Vickie Rae Howton Revocable Trust | Valencia | CA | — | ◇ UNVERIFIED |
| HAHerco Art Manufacturing, INC. | Norristown | PA | — | ◇ UNVERIFIED |
| HBHercules Bolt Company | Madison | TN | — | ◇ UNVERIFIED |
| HPHercules Project Company LLC | Palmetto | FL | — | ◇ UNVERIFIED |
| HSHercules Sheet Metal | Chalmette | LA | — | ◇ UNVERIFIED |
| HMHeritage Machine & Welding, INC. | Bloomington | IL | — | ◇ UNVERIFIED |
| HMHeritage Manufacturing, Inc. | Franklin Park | IL | — | ◇ UNVERIFIED |
| HMHeritage Metal LLC | Tazewell | VA | — | ◇ UNVERIFIED |
| HMHerman Manufactruing Company INC | Wells | MN | — | ◇ UNVERIFIED |
| HMHerman Manufacturing Company INC | Wells | MN | — | ◇ UNVERIFIED |
| HMHerman Manufacturing Company INC | Wells | MN | — | ◇ UNVERIFIED |
| HRHerman Reeves Sheet Metal, INC. | Gastonia | NC | — | ◇ UNVERIFIED |
| HFHerndon's Fabrication Works | South Houston | TX | — | ◇ UNVERIFIED |
| HDHeroux Devtek USA INC | Strongsville | OH | — | ◇ UNVERIFIED |
| HSHerr-voss Stamco | Conway | PA | — | ◇ UNVERIFIED |
| HOHesco of Va LLC | Stuart | VA | — | ◇ UNVERIFIED |
| HHeslops | Novi | MI | — | ◇ UNVERIFIED |
| HCHess Corporation at Msi US Mid-south Machine | Youngsville | LA | — | ◇ UNVERIFIED |
| HSHess Station #32264 | Lindenhurst | NY | — | ◇ UNVERIFIED |
| HSHetta Solutions INC | Waite Park | MN | — | ◇ UNVERIFIED |
 Hexpol Compounding | City of Industry | CA | — | ◇ UNVERIFIED |
| Hexpol Compounding Ca Dba Valley Processing a Hexpol Company | La Puente | CA | — | ◇ UNVERIFIED |
| HSHg Solutions | Garland | TX | — | ◇ UNVERIFIED |
| HHH & H Aero, INC. | Erie | PA | — | ◇ UNVERIFIED |
| HHH & H Engineered Coatings | Fort Worth | TX | — | ◇ UNVERIFIED |
| HEH&h Engineered Coatings | Haltom City | TX | — | ◇ UNVERIFIED |
| HHH H Fabrication and Repair LLC | Winsted | MN | — | ◇ UNVERIFIED |
| HHH & H Machine INC | Carthage | MO | — | ◇ UNVERIFIED |
| HHH & H Machinery | Brenham | TX | — | ◇ UNVERIFIED |
| HHH & H Metal Fabrication | Lawton | IA | — | ◇ UNVERIFIED |
| HPH&h Polishing LLC | Charlotte | NC | — | ◇ UNVERIFIED |
