| HPHercules Project Company LLC | Palmetto | FL | — | ◇ UNVERIFIED |
| HMHeritage Machine & Welding, INC. | Bloomington | IL | — | ◇ UNVERIFIED |
| HMHeritage Manufacturing, Inc. | Franklin Park | IL | — | ◇ UNVERIFIED |
| HMHerman Manufactruing Company INC | Wells | MN | — | ◇ UNVERIFIED |
| HMHerman Manufacturing Company INC | Wells | MN | — | ◇ UNVERIFIED |
| HMHerman Manufacturing Company INC | Wells | MN | — | ◇ UNVERIFIED |
| HFHerndon's Fabrication Works | South Houston | TX | — | ◇ UNVERIFIED |
| HDHeroux Devtek USA INC | Strongsville | OH | — | ◇ UNVERIFIED |
| HTHerrenknecht Tunnelling Systems Usa, INC | Sumner | WA | — | ◇ 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 |
| HCHestan Commercial Corporation | Anaheim | CA | — | ◇ UNVERIFIED |
| HSHetta Solutions INC | Waite Park | MN | — | ◇ UNVERIFIED |
| HCHexcel Corporation | Anaheim | CA | — | ◇ UNVERIFIED |
| HAHgs Aerospace | Fraser | MI | — | ◇ 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 |
| HPH&h Polishing LLC | Charlotte | NC | — | ◇ UNVERIFIED |
| HPHialeah Plating Shop INC | Hialeah | FL | — | ◇ UNVERIFIED |
| HIHiatt Industries, LLC | Winona | MN | — | ◇ UNVERIFIED |
| HMHiatt Manufacturing INC | Winona | MN | — | ◇ UNVERIFIED |
| HMHiatt Metal Forming | Winona | MN | — | ◇ UNVERIFIED |
| HSHibshman Screw Machine Prod INC | Union | MI | — | ◇ UNVERIFIED |
| HMHickey Metal Fabrication and Roofing Company | Salem | OH | — | ◇ UNVERIFIED |
| HMHicks Machine | Walpole | NH | — | ◇ UNVERIFIED |
| HCHigh Caliber Fab LLC | Kiel | WI | — | ◇ UNVERIFIED |
| HMHighland Manufacturing Inc. | Manchester | CT | — | ◇ UNVERIFIED |
| HMHighland Metal, INC. | Hillside | IL | — | ◇ UNVERIFIED |
| HPHighland Plating CO | Los Angeles | CA | — | ◇ UNVERIFIED |
| HSHighland Supply CORP | Redlands | CA | — | ◇ UNVERIFIED |
| HCHighline Controls INC | Livermore | CA | — | ◇ UNVERIFIED |
| HLHigh Lustre Metal Finishing | Hayward | CA | — | ◇ UNVERIFIED |
| HPHigh Precision Partners LLC | Macedon | NY | — | ◇ UNVERIFIED |
| HPHigh Pressure Gas Cylndr. | Longview | TX | — | ◇ UNVERIFIED |
| HRHigh Range Diesel Service L.L.C. | Maple Lake | MN | — | ◇ UNVERIFIED |
| HTHigh Tech Containers LLC | Phoenix | AZ | — | ◇ UNVERIFIED |
| HTHigh Tech Manufacturing Services | Vancouver | WA | — | ◇ UNVERIFIED |
| HTHigh Tech Plating | Englewood | CO | — | ◇ UNVERIFIED |
 High Tech Solutions LLC | Lees Summit | MO | — | ◇ UNVERIFIED |
| HPHightower Plating & Manufacturing CO | Orange | CA | — | ◇ UNVERIFIED |
| HMHighway Machine Company, INC | Princeton | IN | — | ◇ UNVERIFIED |
| HMHignite Metal Fabricating | Rush Springs | OK | — | ◇ UNVERIFIED |
| HWHi-grade Welding and Manufacturing, LLC | Elk Grove Village | IL | — | ◇ UNVERIFIED |
| HPHiles Plating Company INC. | Kansas City | MO | — | ◇ UNVERIFIED |
| HMHi-Lite Machine Company | Oostburg | WI | — | ◇ UNVERIFIED |
| HMHillbilt Metal Works LLC | Kinston | NC | — | ◇ UNVERIFIED |
| HMHillcore Machine, INC. | Portland | OR | — | ◇ UNVERIFIED |
| HIHilliard Investments of Missouri, LLC | Hazelwood | MO | — | ◇ UNVERIFIED |
| HEHillman Extrusion Tool INC | Lincoln | MI | — | ◇ UNVERIFIED |
| HMHill Manufacturing, INC. | Broken Arrow | OK | — | ◇ UNVERIFIED |
| HAHillock Anodizing INC | Philadelphia | PA | — | ◇ UNVERIFIED |
| H2Hillsdale 210 Investments LLC | San Jose | CA | — | ◇ UNVERIFIED |
| HMHills Machinery Company LLC | Columbia | SC | — | ◇ UNVERIFIED |
| HSHilti Steel Industry Division | New Castle | PA | — | ◇ UNVERIFIED |
| HUHilti U.s Manufacturing | Cypress | CA | — | ◇ UNVERIFIED |
| HMHindley Manufacturing Co., INC. | Cumberland | RI | — | ◇ UNVERIFIED |
| HMHirsch Machine, INC | Sunnyvale | CA | — | ◇ UNVERIFIED |
| HTHi-shear Technology CORP | Torrance | CA | — | ◇ UNVERIFIED |
| HSHiskett & Sons | Fallon | NV | — | ◇ UNVERIFIED |
| HMHi-Standard Manufacturing, Inc. | Long Beach | CA | — | ◇ UNVERIFIED |
| HIHitech, INC. | Moore | OK | — | ◇ UNVERIFIED |
| HIHi-tech Industries, LLC | Broken Arrow | OK | — | ◇ UNVERIFIED |
| HTHi Tech Machine Shop | Fontana | CA | — | ◇ UNVERIFIED |
 Hi-tech Machining & Engineering, L.l.c. | Tucson | AZ | — | ◇ UNVERIFIED |
| HMHi-tech Metal, INC. | Denton | TX | — | ◇ UNVERIFIED |
| HSHi-tech Stencils | Orange | CA | — | ◇ UNVERIFIED |
| HWHi-tech Welding | Lees Summit | MO | — | ◇ UNVERIFIED |
| HMHitec Metal Fabrication CORP. | Anaheim | CA | — | ◇ UNVERIFIED |
| HLHitek LLC | Saint Peters | MO | — | ◇ UNVERIFIED |
| HMHi-tek Manufacturing INC. | Mason | OH | — | ◇ UNVERIFIED |
| HSHk Systems | Bountiful | UT | — | ◇ UNVERIFIED |
| HKH & K Tool and Machine Co., INC. | Huntingdon Valley | PA | — | ◇ UNVERIFIED |
| HMHLN Machining LLC | Bryan | OH | — | ◇ UNVERIFIED |
| HIHlpr Incorporated Dba Lakewood Products | Hamel | MN | — | ◇ UNVERIFIED |
| HDH.m. Dunn Company INC. | Saint Louis | MO | — | ◇ UNVERIFIED |
| HHH.M. Hillman Brass & Copper, Inc. | Honey Brook | PA | — | ◇ UNVERIFIED |
| HIHMLJ Industries, LLC | Milwaukee | WI | — | ◇ UNVERIFIED |
| HCHmq Chemtech | Oriskany | NY | — | ◇ UNVERIFIED |
| HUH+m USA Management Company, Inc.dba Hinderer + Mue | Charlotte | NC | — | ◇ UNVERIFIED |
| HPHNH Properties LLC | Houston | TX | — | ◇ UNVERIFIED |
| HPHn Precision INC. | Rochester | NY | — | ◇ UNVERIFIED |
| HTHoa Tran | Morgan Hill | CA | — | ◇ UNVERIFIED |
| HOHockley Oilfield Supply | Levelland | TX | — | ◇ UNVERIFIED |
| HEHockmeyer Equipment CORP. | Elizabeth City | NC | — | ◇ UNVERIFIED |
| HMHodgenville Machine - Tool LLC | White City | KY | — | ◇ UNVERIFIED |
| HMHogan Manufacturing | Escalon | CA | — | ◇ UNVERIFIED |
| HMHogan Mfg INC | Stockton | CA | — | ◇ UNVERIFIED |
| HDHogg & Davis INC | Odell | OR | — | ◇ UNVERIFIED |
| HLHoldings, LLC | Mc Gregor | TX | — | ◇ UNVERIFIED |
| HPHoldren Precision Machining, Inc. | Ulster | PA | — | ◇ UNVERIFIED |
| HCHolfam CORP Dba Holland Industries | North Hollywood | CA | — | ◇ UNVERIFIED |
| HMHollingshead Mixer Company LLC | Avilla | IN | — | ◇ UNVERIFIED |
| HTHolly Tool & Die, INC. | Holly Springs | MS | — | ◇ UNVERIFIED |
