| GEGungnir Engineering Inc | Burnsville | MN | — | ◇ UNVERIFIED |
| GEGungnir Engineering INC Dba Laveen Machine and Eng | Burnsville | MN | — | ◇ UNVERIFIED |
| GMGutierrez Machine CORP | Athens | PA | — | ◇ UNVERIFIED |
| GMGutierrez Manufacturing INC | Santa Ana | CA | — | ◇ UNVERIFIED |
| GSGuttermans Supply Corporation of America | Portland | OR | — | ◇ UNVERIFIED |
| GMGuyan Machinery CO. | Chapmanville | WV | — | ◇ UNVERIFIED |
| GMGuy's Modern Tool Company | Akron | OH | — | ◇ UNVERIFIED |
| GWG W Heineke CO INC | El Centro | CA | — | ◇ UNVERIFIED |
| GWG & W Manufacturing, INC. | Wytheville | VA | — | ◇ UNVERIFIED |
| GMGwynedd Manufacturing, INC. | North Wales | PA | — | ◇ UNVERIFIED |
| HIHaala Industries INC | Sleepy Eye | MN | — | ◇ UNVERIFIED |
| HSHaberle Steel INC. | Delano | PA | — | ◇ UNVERIFIED |
| HMHaberman Machine INC | Stillwater | MN | — | ◇ UNVERIFIED |
| HMHacker Machines LLC | Grants Pass | OR | — | ◇ UNVERIFIED |
| HIHackney INC | West Memphis | AR | — | ◇ UNVERIFIED |
| HMHadkins Manufacturing Solutions LLC | Hudson | WI | — | ◇ UNVERIFIED |
| HMHadur Manufacturing, LLC | Sanford | NC | — | ◇ UNVERIFIED |
| HFH.a. Fabricators , INC. | North Logan | UT | — | ◇ UNVERIFIED |
| HPHagbros Precision, LLC | Hutto | TX | — | ◇ UNVERIFIED |
| HMHager Machine and Tool, INC. | Houston | TX | — | ◇ UNVERIFIED |
| HBHagerty Brothers Company | Peoria | IL | — | ◇ UNVERIFIED |
| HFHahn Fabrication and Development, LLC | Forestville | NY | — | ◇ UNVERIFIED |
| HSHaida Sheet Metal LLC | Battle Ground | WA | — | ◇ UNVERIFIED |
| HIHaimetal INC | Sun Valley | CA | — | ◇ UNVERIFIED |
| HFHaines Fabrication & Machine, LLC | Selbyville | DE | — | ◇ UNVERIFIED |
| HUHalfen Usa, INC. | Converse | TX | — | ◇ UNVERIFIED |
| HIHall Industries INC | Fishersville | VA | — | ◇ UNVERIFIED |
| HMHall's Mechanical Services LLC | Fieldale | VA | — | ◇ UNVERIFIED |
| HSHalls Sheet Metal Fabrication Inc | Galena | OH | — | ◇ UNVERIFIED |
| HMHallwood Modular Buildings LLC | Shreveport | LA | — | ◇ UNVERIFIED |
| HEHalwix Enterprise, INC. | Wood Dale | IL | — | ◇ UNVERIFIED |
| HSHambric Steel & Fabrication | Albany | GA | — | ◇ UNVERIFIED |
| HIHamdon Industries INC | Marysville | MI | — | ◇ UNVERIFIED |
 Hamilton Iron Works INC. | Woodbridge | VA | — | ◇ UNVERIFIED |
| Hamilton Iron Works, INC. | Torrance | CA | — | ◇ UNVERIFIED |
| HWHamlin Welding and Fabricating LLC | Melbourne | FL | — | ◇ UNVERIFIED |
| HMHammersmith Metal Works | Springfield | MO | — | ◇ UNVERIFIED |
| HMHammersmith Mfg. & Sls | Horton | KS | — | ◇ UNVERIFIED |
| HSHammond Sheet Metal | El Dorado Springs | MO | — | ◇ UNVERIFIED |
| HMH&H Metal Fabrication | St. Louis | MO | — | ◇ UNVERIFIED |
| HMHanard Machine INC | Salem | OR | — | ◇ UNVERIFIED |
| HAH and H Metal Products, LLC | Savannah | TN | — | ◇ UNVERIFIED |
| HVHank Van Gaale & Carin Van Gaale | San Luis Obispo | CA | — | ◇ UNVERIFIED |
| HIHansford Industries, INC. | Sacramento | CA | — | ◇ UNVERIFIED |
| HIHanson International INC Dba Hanson Mold | Saint Joseph | MI | — | ◇ UNVERIFIED |
| HEHarbor Enterprises LLC. | Thomasville | GA | — | ◇ UNVERIFIED |
| HOHarbor Ornamental, INC. | Torrance | CA | — | ◇ UNVERIFIED |
| HMHarco Machine INC | Eugene | OR | — | ◇ UNVERIFIED |
| HRHarding Real Estate Holdings, LLC | Santa Ana | CA | — | ◇ UNVERIFIED |
 Hardric Laboratories | Waltham | MA | — | ◇ UNVERIFIED |
| HWHard Way Enterprises, Inc. | Colorado Springs | CO | — | ◇ UNVERIFIED |
| HFHardy Frames INC | Huntington Beach | CA | — | ◇ UNVERIFIED |
| HMHardy Manufacturing, INC | Doylestown | PA | — | ◇ UNVERIFIED |
| HSHarliss Specialties Corporation | Westmoreland City | PA | — | ◇ UNVERIFIED |
| HRHarmac Rebar & Steel CORP | Fryeburg | ME | — | ◇ UNVERIFIED |
| HIHarmon's Ironworks and Fabrication LLC | Bowdon | GA | — | ◇ UNVERIFIED |
| HTHarout Tool & Machine Corporation | Hackensack | NJ | — | ◇ UNVERIFIED |
| HRHarris/arizona Rebar INC. (dba Harris Rebar Southern California) | Pomona | CA | — | ◇ UNVERIFIED |
| HRHarris Rebar Fresno INC | Fresno | CA | — | ◇ UNVERIFIED |
| HRHarris Rebar North Carolina INC | Catawba | SC | — | ◇ UNVERIFIED |
| HSHarris Sheet Metal CO. | Midland | MI | — | ◇ UNVERIFIED |
| HGHarry Gordon Steel Company | Winchester | KY | — | ◇ UNVERIFIED |
| HMHarshman Machine & Tool CO. | Saint Joseph | MO | — | ◇ UNVERIFIED |
| HMHart Mechanical & Electrical Contractors, INC | Perkasie | PA | — | ◇ UNVERIFIED |
| HEHarts Engine Service | Princeton | WV | — | ◇ 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 |
| HLHassett LLC Dba Roettger Welding | Stillwater | MN | — | ◇ UNVERIFIED |
| HIHaulmark Industries INC | El Mirage | AZ | — | ◇ UNVERIFIED |
| HSHawe Steel Design | Butte | MT | — | ◇ UNVERIFIED |
| HMHawkeye Mold & Design Co. | Charles City | IA | — | ◇ UNVERIFIED |
| HFHawk Fabricators | Birmingham | AL | — | ◇ UNVERIFIED |
| HQHawk Quality Products INC | Derry | NH | — | ◇ UNVERIFIED |
| HTHawk Tool & Machine INC | Wixom | MI | — | ◇ UNVERIFIED |
| HWHawk Welding & Fabrication Company | Fort Worth | TX | — | ◇ UNVERIFIED |
| HQHazlehurst Quality Machine and Fabrication, INC. | Hazlehurst | GA | — | ◇ UNVERIFIED |
| HCHazleton Custom Metal Products INC. | Hazleton | PA | — | ◇ UNVERIFIED |
| HBH & B Machine & Manufacturing, INC. | Chickasha | OK | — | ◇ UNVERIFIED |
| HPHbp Pressure Pipe INC | Bakewell | TN | — | ◇ UNVERIFIED |
| HBH. Brauning Co., INC. | Manassas | VA | — | ◇ UNVERIFIED |
| HJH.c Jeffries Tower Company, INC. | Porter | 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 |
| HDH & D Specialties INC | Knoxville | AR | — | ◇ UNVERIFIED |
| HSHd Supply Construction Supply LTD | Gilbert | AZ | — | ◇ UNVERIFIED |
| HSHd Supply Water Works LTD 7833 | Lodi | CA | — | ◇ UNVERIFIED |
| HRHeader Reinforcement CORP. | Fountain Valley | CA | — | ◇ UNVERIFIED |
| HAHeart Aerospace | El Segundo | CA | — | ◇ UNVERIFIED |
| HMHeartland Machine - Tool INC | Brainerd | MN | — | ◇ UNVERIFIED |
| HMHeartland Metal Sales, LLC | Marion | IL | — | ◇ UNVERIFIED |
| HTHeat Transfer Specialists of Louisiana, INC. | Baton Rouge | LA | — | ◇ UNVERIFIED |
| HEHeavy Equipment Repair INC | Saint Paul | MN | — | ◇ UNVERIFIED |
| HEHeavy Equipment Repair INC | White Bear Lake | MN | — | ◇ UNVERIFIED |
| HLHeavy & Light Welding/Fabrication, Inc. | Bend | OR | — | ◇ UNVERIFIED |
| HLHeavy Line Fabrication | Anna | TX | — | ◇ UNVERIFIED |
| HMHeavy Metal Corporation | Cranston | RI | — | ◇ UNVERIFIED |
| HMHeavy Metal Fabrication | Colorado Springs | CO | — | ◇ UNVERIFIED |
