| GCGulf Coast Signs of Sarasota | Sarasota | FL | — | ◇ UNVERIFIED |
| GCGulf Coast Supply & Manufacturing LLC | Sebring | FL | — | ◇ UNVERIFIED |
| GCGulf Coast Supply & Manufacturing, LLC | Montgomery | AL | — | ◇ UNVERIFIED |
| GSGulf States Manufacturers | Starkville | MS | — | ◇ UNVERIFIED |
| GSGunderson Systems International, INC. | Shreveport | LA | — | ◇ UNVERIFIED |
| GTGundrill Tech | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
| GTGurgen Torchyan | Lancaster | CA | — | ◇ UNVERIFIED |
| GMGutierrez Manufacturing INC | Santa Ana | CA | — | ◇ UNVERIFIED |
| GSGuttermans Supply Corporation of America | Portland | OR | — | ◇ UNVERIFIED |
| GGG&V Greenhouse Solutions LLC | Sunman | IN | — | ◇ 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 |
| HOHamon Overhead Door Company INC. | Lompoc | CA | — | ◇ UNVERIFIED |
| HCHampden Clnrs/mechanicsburg | Mechanicsburg | PA | — | ◇ UNVERIFIED |
| HMH&H Metal Fabrication | St. Louis | MO | — | ◇ UNVERIFIED |
| HPHampton Products International Corporation | Shell Lake | WI | — | ◇ UNVERIFIED |
| HAH and H Metal Products, LLC | Savannah | TN | — | ◇ UNVERIFIED |
| HMHandi-house Mfg. CO. | Swainsboro | GA | — | ◇ UNVERIFIED |
| HIHardcraft Industries | San Jose | CA | — | ◇ 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 |
| 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 |
| HGHavecon Greenhouses, INC. | Fort Valley | GA | — | ◇ UNVERIFIED |
| HFHawk Fabricators | Birmingham | AL | — | ◇ UNVERIFIED |
| HWHayfield Window and Door Company | Hayfield | MN | — | ◇ UNVERIFIED |
| HCHazleton Custom Metal Products INC. | Hazleton | PA | — | ◇ UNVERIFIED |
 Hci Steel Buildings LLC | Arlington | WA | — | ◇ UNVERIFIED |
| HSHci Steel Building Systems INC | Arlington | WA | — | ◇ 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 |
| HIHehr Intl INC Plt 9 | Chesaning | MI | — | ◇ UNVERIFIED |
 Helander Metal Spinning Company | Addison | IL | — | ◇ UNVERIFIED |
| Helander Metal Spinning Company | Lombard | IL | — | ◇ UNVERIFIED |
| HPHelical Pier Distribution | Howell | MI | — | ◇ UNVERIFIED |
| HPHelms Performance Group, INC. Dba Christy Metals/chris Industries/chris Plating | Northbrook | IL | — | ◇ UNVERIFIED |
| HPHemstreet Park | West Palm Beach | FL | — | ◇ UNVERIFIED |
| HMHennemuth Metal Fabricators, INC. | Oakdale | PA | — | ◇ UNVERIFIED |
| HIHennig, INC. Marlin | Machesney Park | IL | — | ◇ UNVERIFIED |
| HSHercules Sheet Metal | Chalmette | LA | — | ◇ UNVERIFIED |
| HDHeritage Door CO | Philadelphia | PA | — | ◇ UNVERIFIED |
| HMHeritage Metal LLC | Tazewell | VA | — | ◇ UNVERIFIED |
| HPHeritage Portable Buildings, LLC | Burlington | WA | — | ◇ UNVERIFIED |
| HRHermanos Rivera Windows CORP. | Cabo Rojo | PR | — | ◇ UNVERIFIED |
| HMHewitt Machine & Manufacturing INC | Nicollet | MN | — | ◇ UNVERIFIED |
| HSHg Solutions | Garland | TX | — | ◇ UNVERIFIED |
| HHH & H Fabrication, Inc. | Amarillo | TX | — | ◇ UNVERIFIED |
| HHH & H Metal Fabrication | Lawton | IA | — | ◇ UNVERIFIED |
| HRHh Robertson | Frankfort | KY | — | ◇ UNVERIFIED |
| HSH&h Sheetmetal, INC. | Russellville | KY | — | ◇ UNVERIFIED |
| HBHicks Brothers Property LLC | Kalamazoo | MI | — | ◇ UNVERIFIED |
| HMHighland Machine | Oak Hill | WV | — | ◇ UNVERIFIED |
| HMHightower Metal Works | Houston | TX | — | ◇ UNVERIFIED |
| HMHighway Metal Services, INC. | Cleveland | OH | — | ◇ UNVERIFIED |
| HMHildebrandt Machine | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
| HFHilgert Family Properties, LLC | Pomona | CA | — | ◇ UNVERIFIED |
| HSHillcrest Sheet Metal, INC. | Bakersfield | CA | — | ◇ UNVERIFIED |
| HMHill Mfg LLC | Santa Clara | CA | — | ◇ UNVERIFIED |
| HSHillsboro Sheet Metal, INC. | Tampa | FL | — | ◇ UNVERIFIED |
| HSHimco Security Products | Los Angeles | CA | — | ◇ UNVERIFIED |
| HSHinkel-hofmann Supply Company | Pittsburgh | PA | — | ◇ UNVERIFIED |
| H3Hirsch 3667 Coporation | Clinton | OK | — | ◇ UNVERIFIED |
| HFHi-tech Fab, INC. | Shelbyville | TN | — | ◇ UNVERIFIED |
| HFHi-tech Fabrication, INC. | Raleigh | NC | — | ◇ UNVERIFIED |
| HIHi-tech Industries of New York | Johnson City | NY | — | ◇ UNVERIFIED |
| HTHi Tech Industries of New York, INC. | Johnson City | NY | — | ◇ UNVERIFIED |
| HSHj Shotwell CO | Minneapolis | MN | — | ◇ UNVERIFIED |
| HKH & K Tool & Die INC. | Stevens Point | WI | — | ◇ UNVERIFIED |
| HWHm White INC | Detroit | MI | — | ◇ UNVERIFIED |
| HEHoffman Enclosures INC Dba Pentair Technical | Anoka | MN | — | ◇ UNVERIFIED |
| HMHoffman Manufacturing, INC. | Fogelsville | PA | — | ◇ UNVERIFIED |
| HSHog Slat, Incorporated | Clinton | NC | — | ◇ UNVERIFIED |
| HBHohmann & Barnard (sandell Manufacturing) | Schenectady | NY | — | ◇ UNVERIFIED |
| HHHojalateria Hipolito Rosa INC | Aguada | PR | — | ◇ UNVERIFIED |
| HMHolbrook Merrill Co# | Sunnyvale | CA | — | ◇ UNVERIFIED |
| HHHolcomb & Hoke Manufacturing Company Incorporated | Indianapolis | IN | — | ◇ UNVERIFIED |
| HSHolliday Sheet Metal CO. | Tyler | TX | — | ◇ UNVERIFIED |
| HMHollow Metal, INC. | Tampa | FL | — | ◇ UNVERIFIED |
| HMHollow Metal Specialties, INC. | Mcadoo | PA | — | ◇ UNVERIFIED |
| HMHollow Metal Specialties, INC. | Pennsauken | NJ | — | ◇ UNVERIFIED |
| HMHollow Metal Xpress | Phoenix | AZ | — | ◇ UNVERIFIED |
| HIHolly Industries INC | Hornick | IA | — | ◇ UNVERIFIED |
| HMHolmboe Manufacturing CO. | Oklahoma City | OK | — | ◇ UNVERIFIED |
| HGHome Guard Industries, INC. | Grabill | IN | — | ◇ UNVERIFIED |
| HIHonebrink Industries, LLC | Hudson | WI | — | ◇ UNVERIFIED |
| HIHoneywell International INC. | Tucson | AZ | — | ◇ UNVERIFIED |
| HTHon Tai CORP | Tamuning | GU | — | ◇ UNVERIFIED |
| HDHood Depot International INC | Deerfield Beach | FL | — | ◇ UNVERIFIED |
| HWHopes Windows INC | Falconer | NY | — | ◇ UNVERIFIED |
