| HMHeavy Metal Fabrication | Colorado Springs | CO | — | ◇ UNVERIFIED |
| HMHeavy Metal Laser | Kaysville | UT | — | ◇ UNVERIFIED |
| HSHeavy Stone Rings LLC | Orem | UT | — | ◇ UNVERIFIED |
| HCHechimovich Custom Machining, Inc. | Hartford | WI | — | ◇ UNVERIFIED |
| HMHecksel Machine INC | Watertown | MN | — | ◇ UNVERIFIED |
| HMHec Manufacturing, INC. | Bardstown | KY | — | ◇ UNVERIFIED |
| HDHedalloy Die CORP | Cleveland | OH | — | ◇ UNVERIFIED |
| HEH&e Equipment Services | Norwalk | CA | — | ◇ UNVERIFIED |
| HMHegar Manufacturing INC | Clackamas | OR | — | ◇ UNVERIFIED |
| HMHeim Machine LLC | Green Bay | WI | — | ◇ UNVERIFIED |
| HMHeim Machine LLC | Green Bay | WI | — | ◇ UNVERIFIED |
| HMHeim Machine LLC | Green Bay | WI | — | ◇ UNVERIFIED |
| HSHeintz Steel and Manufacturing Company | Saint Louis | MO | — | ◇ UNVERIFIED |
| HEHeinz Engineering, Inc. | Gardena | CA | — | ◇ UNVERIFIED |
| HMHeinzen Manufacturing INC | Gilroy | CA | — | ◇ UNVERIFIED |
 Helander Metal Spinning Company | Addison | IL | — | ◇ UNVERIFIED |
| Helander Metal Spinning Company | Lombard | IL | — | ◇ UNVERIFIED |
| HPHeleniak Properties, LLC | Plainville | CT | — | ◇ UNVERIFIED |
| HEHelicopter Express Fab Shop | White City | OR | — | ◇ UNVERIFIED |
| HTHellebusch Tool & Die, INC. | Washington | MO | — | ◇ UNVERIFIED |
| HCHelmick CORP | Fairmont | WV | — | ◇ UNVERIFIED |
| HTHelm Tool Company Incorporated | Elk Grove Village | IL | — | ◇ UNVERIFIED |
| HIHelser Industries of Nc | Sharpsburg | NC | — | ◇ UNVERIFIED |
| HMHelton Machine CO | Walton | KY | — | ◇ UNVERIFIED |
| HFHenderson Fabrication | San Antonio | TX | — | ◇ UNVERIFIED |
| HWHenderson Welding, INC. | Chicago | IL | — | ◇ UNVERIFIED |
| HFHendricks Fabrication, INC. | Piedmont | SC | — | ◇ UNVERIFIED |
| HMHennemuth Metal Fabricators, INC. | Oakdale | PA | — | ◇ UNVERIFIED |
| HEHennes-johnson Equipment CO | Belle Plaine | MN | — | ◇ UNVERIFIED |
| HIHennig, INC. Marlin | Machesney Park | IL | — | ◇ UNVERIFIED |
| HAHenry and Sons Construction | New Braunfels | TX | — | ◇ UNVERIFIED |
| HFHenry Fletcher | Rancho Cordova | CA | — | ◇ UNVERIFIED |
| HHHenry H. Smith and Company | Algonac | MI | — | ◇ UNVERIFIED |
| HSHenry Station LLC | Ukiah | CA | — | ◇ UNVERIFIED |
| HIHensley Industries, INC. | Mansfield | TX | — | ◇ 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 |
| HPHERCO Properties, LLC | Auburn Hills | MI | — | ◇ UNVERIFIED |
| HBHercules Bolt Company | Madison | TN | — | ◇ UNVERIFIED |
| HMHercules Machine Tool & Die LLC | Warren | MI | — | ◇ UNVERIFIED |
| HPHercules Project Company LLC | Palmetto | FL | — | ◇ UNVERIFIED |
| HSHercules Sheet Metal | Chalmette | LA | — | ◇ UNVERIFIED |
| HSHercules Steel Company, Incorporated | Richlands | NC | — | ◇ UNVERIFIED |
| HWHercules Wrought Iron Works INC | Chantilly | VA | — | ◇ UNVERIFIED |
| HCHeritage Custom Fabricators | Princeton | IN | — | ◇ UNVERIFIED |
| HMHeritage Machine & Welding, INC. | Bloomington | IL | — | ◇ UNVERIFIED |
| HMHeritage Manufacturing, Inc. | Franklin Park | IL | — | ◇ UNVERIFIED |
| HMHeritage Metal LLC | Tazewell | VA | — | ◇ UNVERIFIED |
| HBHerman Binz & Sons Iron Works | Little Rock | AR | — | ◇ 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 |
| HSHerman Steel Inc | Slatington | PA | — | ◇ UNVERIFIED |
| HSHermitage Steel, Incorporated | Richmond | VA | — | ◇ UNVERIFIED |
| HWHernandez Wrought Iron, INC. | Ontario | CA | — | ◇ UNVERIFIED |
| HMHerndon & Merry INC | Nashville | TN | — | ◇ UNVERIFIED |
| HFHerndon's Fabrication Works | South Houston | TX | — | ◇ UNVERIFIED |
| HTHerrenknecht Tunnelling Systems Usa, INC | Sumner | WA | — | ◇ UNVERIFIED |
| HFHerrera Fabricating INC. | Houston | TX | — | ◇ UNVERIFIED |
| HCHerrick CORP Dba San Bernardino Steel INC | San Bernardino | CA | — | ◇ UNVERIFIED |
| HSHerr-voss Stamco | Conway | PA | — | ◇ UNVERIFIED |
| HOHesco of Va LLC | Stuart | VA | — | ◇ UNVERIFIED |
| HCHess Corporation at Msi US Mid-south Machine | Youngsville | LA | — | ◇ UNVERIFIED |
| HMHess Meat Machines, INC. | Webster Groves | MO | — | ◇ UNVERIFIED |
| HCHestan Commercial Corporation | Anaheim | CA | — | ◇ UNVERIFIED |
| HSHetta Solutions INC | Waite Park | MN | — | ◇ UNVERIFIED |
| HCHexcel Corporation | Anaheim | CA | — | ◇ UNVERIFIED |
| HCHex Coffee Roasters LLC | Charlotte | NC | — | ◇ UNVERIFIED |
| HMHG Metals | Indianapolis | IN | — | ◇ UNVERIFIED |
| HAHgs Aerospace | Fraser | MI | — | ◇ UNVERIFIED |
| HSHg Solutions | Garland | TX | — | ◇ UNVERIFIED |
| HHH & H Aero, INC. | Erie | PA | — | ◇ UNVERIFIED |
| HHH H Fabrication and Repair LLC | Winsted | MN | — | ◇ UNVERIFIED |
| HHH Hirschberger CO INC | Portland | OR | — | ◇ UNVERIFIED |
| HHH & H Machine INC | Carthage | MO | — | ◇ UNVERIFIED |
| HHH & H Machinery | Brenham | TX | — | ◇ UNVERIFIED |
| HHH & H Metal Fabrication | Lawton | IA | — | ◇ UNVERIFIED |
| HIHiatt Industries, LLC | Winona | MN | — | ◇ UNVERIFIED |
| HSHibshman Screw Machine Prod INC | Union | MI | — | ◇ UNVERIFIED |
| HMHickey Metal Fabrication and Roofing Company | Salem | OH | — | ◇ UNVERIFIED |
| HBHicks Brothers Property LLC | Kalamazoo | MI | — | ◇ UNVERIFIED |
| HMHicks Machine | Walpole | NH | — | ◇ UNVERIFIED |
| HCHigh Caliber Fab LLC | Kiel | WI | — | ◇ UNVERIFIED |
| HIHigh Industries INC | Lancaster | PA | — | ◇ UNVERIFIED |
| HMHighland Manufacturing Inc. | Manchester | CT | — | ◇ UNVERIFIED |
| HMHighland Metal, INC. | Hillside | IL | — | ◇ UNVERIFIED |
| HOHighland Ornamental Ironworks INC | Berryville | VA | — | ◇ UNVERIFIED |
| HSHighland Supply CORP | Redlands | CA | — | ◇ 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 |
 High Tech Solutions LLC | Lees Summit | MO | — | ◇ UNVERIFIED |
| HMHightower Metal Works | Houston | TX | — | ◇ UNVERIFIED |
| HMHighway Machine Company, INC | Princeton | IN | — | ◇ UNVERIFIED |
| HMHighway Metal Services, INC. | Cleveland | OH | — | ◇ UNVERIFIED |
