| FWFrontier Welded Products, INC. | Abilene | TX | — | ◇ UNVERIFIED |
| FSFtb & Son INC | Garden Grove | CA | — | ◇ UNVERIFIED |
| FIFTDM Investments, LLC | Locust Grove | OK | — | ◇ UNVERIFIED |
| FDFull-fledged Distribution INC | Waite Park | MN | — | ◇ UNVERIFIED |
| FHFulton Haley Metal Products, INC. | Bay Minette | AL | — | ◇ UNVERIFIED |
| FHFulton Heating Solutions INC | East Syracuse | NY | — | ◇ UNVERIFIED |
| FMFundamental Motorsports | Long Beach | CA | — | ◇ UNVERIFIED |
| FAFurnace and Tube Service, INC. | Gonzales | LA | — | ◇ UNVERIFIED |
| GIGadutex, INC. | Houston | TX | — | ◇ UNVERIFIED |
| GKGallagher Kaiser | Roanoke | IN | — | ◇ UNVERIFIED |
| GAGamma Aerospace | Mansfield | TX | — | ◇ UNVERIFIED |
| GMGammons Metal and Manufacturing Company, INC. | Indianapolis | IN | — | ◇ UNVERIFIED |
| GMGardner Mfg CO | Horicon | WI | — | ◇ UNVERIFIED |
| GIGarfam Industries, INC. | Houston | TX | — | ◇ UNVERIFIED |
| GUGarmat USA INC | Englewood | CO | — | ◇ UNVERIFIED |
| GCGarner-smith Company* | Memphis | TN | — | ◇ UNVERIFIED |
| GSGates & Sons (was Karl W Schmidt Assoc I | Denver | CO | — | ◇ UNVERIFIED |
| GPGateway Precision Technologies LLC | Covington | KY | — | ◇ UNVERIFIED |
| GBG B Enterprises Arlington | Arlington | WA | — | ◇ UNVERIFIED |
| GIGch International | Louisville | KY | — | ◇ UNVERIFIED |
| GDG D Roberts | Columbus | WI | — | ◇ UNVERIFIED |
| GHGea Heat Exchangers, Incorporated, Phe Division | York | PA | — | ◇ UNVERIFIED |
| GHGea Heat Exchangers, Inc., Plant Three | Catoosa | OK | — | ◇ UNVERIFIED |
| GRGea Rainey Heat Exchangers, INC. | Catoosa | OK | — | ◇ UNVERIFIED |
| GNGe-hitachi Nuclear Energy | San Jose | CA | — | ◇ UNVERIFIED |
| GAGeneral Awning CO. | Brooklyn Heights | OH | — | ◇ UNVERIFIED |
| GSGeneral Sheet Metal of Thomasville, INC. | Thomasville | AL | — | ◇ UNVERIFIED |
| GKGeo. Knight & CO. INC. | Brockton | MA | — | ◇ UNVERIFIED |
| GGGeorgia Gutters, INC. | East Point | GA | — | ◇ UNVERIFIED |
| GRGerard Roofing Technologies | Brea | CA | — | ◇ UNVERIFIED |
| GIGERK Investments LLC | Phoenix | AZ | — | ◇ UNVERIFIED |
| GMGerome Manufacturing CO INC | Uniontown | PA | — | ◇ UNVERIFIED |
| GWGestamp Wind Towers Us, INC. | Amarillo | TX | — | ◇ UNVERIFIED |
| GMGh Metal Solutions, INC. | Fort Payne | AL | — | ◇ UNVERIFIED |
| GMGibson Mechanical INC. | Whitestone | NY | — | ◇ UNVERIFIED |
| GMGibson Mech. INC. | Whitestone | NY | — | ◇ UNVERIFIED |
| GWGibson Welding Sheetmetal & Vent, INC. | Destin | FL | — | ◇ UNVERIFIED |
| GCGieske Custom Metal Fabricators | Kansas City | MO | — | ◇ UNVERIFIED |
| GBGilliland Brothers Sheet Metal | Phenix City | AL | — | ◇ UNVERIFIED |
| GSGj&j Sheet Metal Fabrication | Menifee | CA | — | ◇ UNVERIFIED |
| GHGlasco Heating & Air Conditioning, INC. | South Windsor | CT | — | ◇ UNVERIFIED |
| GEGlauber Equipment Corporation | Lancaster | NY | — | ◇ UNVERIFIED |
| GSGlobal Staffing Solutions, LLC | East Longmeadow | MA | — | ◇ UNVERIFIED |
| GNGlobe Newspaper CO | Boston | MA | — | ◇ UNVERIFIED |
| GNGm Nameplate INC Auburn | Auburn | WA | — | ◇ UNVERIFIED |
 Goergen-Mackwirth Co., Inc. | Buffalo | NY | — | ◇ UNVERIFIED |
| GSGolden Steel, INC. | New York | NY | — | ◇ UNVERIFIED |
| GTGooch Thermal Manufacturing, INC. | Fogelsville | PA | — | ◇ UNVERIFIED |
| GVGood View Metals | Apollo | PA | — | ◇ UNVERIFIED |
| GSGordon Sheet Metal INC | Kailua Kona | HI | — | ◇ UNVERIFIED |
| GPGp Precision, INC. | Hackettstown | NJ | — | ◇ UNVERIFIED |
| GIGrabek Iron Works, Inc. | Crown Point | IN | — | ◇ UNVERIFIED |
| GFGratton Fabricating & Welding, INC. | Adamsburg | PA | — | ◇ UNVERIFIED |
| GPGrayd 'a' Precision Metal Fabrications | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
| GWGreater Wisconsin Sheet Metal, INC | Plymouth | WI | — | ◇ UNVERIFIED |
| GLGreat Lakes Manufacturing | Corry | PA | — | ◇ UNVERIFIED |
 Greenheck Fan CORP | Schofield | WI | — | ◇ UNVERIFIED |
| GMGreenwood Manufacturing INC. | Houston | TX | — | ◇ UNVERIFIED |
| GMGregory Metal Fabrication | Crandall | GA | — | ◇ UNVERIFIED |
| GZGreg Zimont | Panama City Beach | FL | — | ◇ UNVERIFIED |
| GVGSA Ventures LLC | Foley | AL | — | ◇ UNVERIFIED |
| GSGuch Sheet Metal and Ac INC | Stuart | FL | — | ◇ UNVERIFIED |
| GAGuernsey Architectural Solutions, INC. | Boca Raton | FL | — | ◇ UNVERIFIED |
| GCGulf Coast Signs of Sarasota | Sarasota | FL | — | ◇ UNVERIFIED |
| GCGulf Coast Supply & Manufacturing LLC | Sebring | FL | — | ◇ UNVERIFIED |
| GCGulf Coast Supply & Manufacturing, LLC | Montgomery | AL | — | ◇ UNVERIFIED |
| GMGutierrez Manufacturing INC | Santa Ana | CA | — | ◇ UNVERIFIED |
| GSGuttermans Supply Corporation of America | Portland | OR | — | ◇ UNVERIFIED |
| HSHaida Sheet Metal LLC | Battle Ground | WA | — | ◇ UNVERIFIED |
| HIHaimetal INC | Sun Valley | CA | — | ◇ UNVERIFIED |
| HMHall's Mechanical Services LLC | Fieldale | VA | — | ◇ UNVERIFIED |
| HSHalls Sheet Metal Fabrication Inc | Galena | OH | — | ◇ UNVERIFIED |
| HWHamlin Welding and Fabricating LLC | Melbourne | FL | — | ◇ UNVERIFIED |
| HMHammersmith Metal Works | Springfield | MO | — | ◇ UNVERIFIED |
| HSHammond Sheet Metal | El Dorado Springs | MO | — | ◇ UNVERIFIED |
| HMH&H Metal Fabrication | St. Louis | MO | — | ◇ UNVERIFIED |
| HAH and H Metal Products, LLC | Savannah | TN | — | ◇ UNVERIFIED |
| HFHardy Frames INC | Huntington Beach | CA | — | ◇ UNVERIFIED |
| HTHarout Tool & Machine Corporation | Hackensack | NJ | — | ◇ UNVERIFIED |
| HMHarrison Machine Co/wesleyville Plt | Erie | PA | — | ◇ UNVERIFIED |
| HSHarris Sheet Metal CO. | Midland | MI | — | ◇ UNVERIFIED |
| HCHarsco Corp/east Stroudsburg Plt | East Stroudsburg | PA | — | ◇ UNVERIFIED |
| HIHarsco Industrial Hammco, LLC | Owasso | OK | — | ◇ UNVERIFIED |
| HCHart & Cooley INC | Holland | MI | — | ◇ UNVERIFIED |
| HCHart & Cooley INC | Tucson | AZ | — | ◇ UNVERIFIED |
| HMHartzell Mfg CO INC (0857092018) | Miamisburg | OH | — | ◇ UNVERIFIED |
| HVHarvest Valley Specialties INC | Eugene | OR | — | ◇ UNVERIFIED |
| HIHarwell Industries | Oklahoma City | OK | — | ◇ UNVERIFIED |
| HHHastings Hvac INC | Hastings | NE | — | ◇ UNVERIFIED |
| HFHawk Fabricators | Birmingham | AL | — | ◇ UNVERIFIED |
| HCHazleton Custom Metal Products INC. | Hazleton | PA | — | ◇ UNVERIFIED |
| HCH. C. Wade Sheet Metal Works | Martinsville | VA | — | ◇ UNVERIFIED |
| HFHdn F&a INC | Battle Creek | MI | — | ◇ UNVERIFIED |
| HFHeat Fab INC | Turners Falls | MA | — | ◇ UNVERIFIED |
| HTHeat Transfer Equipment CO. | Tulsa | OK | — | ◇ UNVERIFIED |
 Helander Metal Spinning Company | Lombard | IL | — | ◇ UNVERIFIED |
| Helander Metal Spinning Company | Addison | IL | — | ◇ UNVERIFIED |
| HMHennemuth Metal Fabricators, INC. | Oakdale | PA | — | ◇ UNVERIFIED |
| HIHennig, INC. Marlin | Machesney Park | IL | — | ◇ UNVERIFIED |
| HSHercules Sheet Metal | Chalmette | LA | — | ◇ UNVERIFIED |
