 Greenheck Fan CORP | Rocklin | CA | — | ◇ UNVERIFIED |
| GMGreenstone Materials LLC | Ruckersville | VA | — | ◇ UNVERIFIED |
| GPGreg Pelc Electroplating | Lincoln | IL | — | ◇ UNVERIFIED |
| GAGrimes Aerospace CO * | Urbana | OH | — | ◇ UNVERIFIED |
| GIGrimmel Industries | Topsham | ME | — | ◇ UNVERIFIED |
 Griswold Industries Dba Soundcast | South Gate | CA | — | ◇ UNVERIFIED |
| GMGriswold Machine & Engineering INC. (plant #2) | Union City | MI | — | ◇ UNVERIFIED |
| GSGroton Screw Machine CO | Groton | MA | — | ◇ UNVERIFIED |
| GUGrove US LLC | Quincy | PA | — | ◇ UNVERIFIED |
| GFGsi Facility - Paris New | Paris | IL | — | ◇ UNVERIFIED |
| GPGsi Paris Solar Facility | Paris | IL | — | ◇ UNVERIFIED |
| GIGsm Industrial INC Ephrata Plant | Ephrata | PA | — | ◇ UNVERIFIED |
| GFGtr Finishing Corporation | Abington | MA | — | ◇ UNVERIFIED |
| GTGt Technologies of Tennessee INC | Hendersonville | TN | — | ◇ UNVERIFIED |
| GIGuhring INC | Brookfield | WI | — | ◇ UNVERIFIED |
| GPGuild Platers INC | Long Island City | NY | — | ◇ UNVERIFIED |
| GCGulf Coast Metal Work INC | Cape Coral | FL | — | ◇ UNVERIFIED |
| GCGulf Coast Plating INC | Pensacola | FL | — | ◇ UNVERIFIED |
| GIGulf Island Fabrication - North Yard | Houma | LA | — | ◇ UNVERIFIED |
| GIGulf Island Fabrication - West Yard | Houma | LA | — | ◇ UNVERIFIED |
| GIGulf Island Services LLC | Houma | LA | — | ◇ UNVERIFIED |
| GMGulf Marine Fabricators North | Aransas Pass | TX | — | ◇ UNVERIFIED |
| GPGulf Plating | Wilton Manors | FL | — | ◇ UNVERIFIED |
| GIGull Industries | Houston | TX | — | ◇ UNVERIFIED |
| GIGunblack INC | Interlaken | NY | — | ◇ UNVERIFIED |
| GZG Zero Cnc Machining | Meridian | ID | — | ◇ UNVERIFIED |
| HLHadady LLC | Dyer | IN | — | ◇ UNVERIFIED |
| HMHadady Machining CO INC | Lansing | IL | — | ◇ UNVERIFIED |
| HMHallett Materials | Des Moines | IA | — | ◇ UNVERIFIED |
| HEHalliburton Energy Services | Grand Junction | CO | — | ◇ UNVERIFIED |
| HEHalliburton Energy Svcs | Grand Junction Area | CO | — | ◇ UNVERIFIED |
| HIHall Industries INC. | Pittsburgh | PA | — | ◇ UNVERIFIED |
| HMHammersmith Mfg & Sales INC | Horton | KS | — | ◇ UNVERIFIED |
| HSHammett Steel LLC | Phenix City | AL | — | ◇ UNVERIFIED |
| HMHammond Machine | Hammond | IN | — | ◇ UNVERIFIED |
| HPHammon Plating Corporation | Salt Lake City | UT | — | ◇ UNVERIFIED |
| HDHamon Deltak INC | Plymouth | MN | — | ◇ UNVERIFIED |
| HMHampton Machine Shop INC | Hampton | VA | — | ◇ UNVERIFIED |
| HAH and P Industries INC. | Mukwonago | WI | — | ◇ UNVERIFIED |
| HBHandy Button Machine CO | Melrose Park | IL | — | ◇ UNVERIFIED |
| HPHanlon Plating Company Incorporated | Richmond | VA | — | ◇ UNVERIFIED |
| HPHarberts Products INC | Greencastle | PA | — | ◇ UNVERIFIED |
| HCHard Chrome Platers INC. | Nashville | TN | — | ◇ UNVERIFIED |
| HCHard Chrome Platers, INC | La Vergne | TN | — | ◇ UNVERIFIED |
| HCHardie-tynes Co., INC | Birmingham | AL | — | ◇ UNVERIFIED |
 Hardric Laboratories | Chelmsford | MA | — | ◇ UNVERIFIED |
| HWHarold Wood CO | Buffalo | NY | — | ◇ UNVERIFIED |
| HTHarper Thiel | Wilmington | DE | — | ◇ UNVERIFIED |
| HEHarrison Engine Service, INC. | La Porte | IN | — | ◇ UNVERIFIED |
| HRHarris Rebar Auburn | Auburn | WA | — | ◇ UNVERIFIED |
| HRHarris Rebar - Birmingham | Riverside | AL | — | ◇ UNVERIFIED |
| HTHarsco Track Technologies | Fairmont | MN | — | ◇ UNVERIFIED |
| HAHartchrom at the Watervliet Arsenal | Watervliet | NY | — | ◇ UNVERIFIED |
| HCHart Chrome & Restoration | Carrollton | GA | — | ◇ UNVERIFIED |
| HSHartford Standard CORP | Hartford | KY | — | ◇ UNVERIFIED |
| HWHasse & Wrede North America | North Aurora | IL | — | ◇ UNVERIFIED |
| HSHavens Steel Company | Kansas City | MO | — | ◇ UNVERIFIED |
| HPHawaii Plating | Honolulu | HI | — | ◇ UNVERIFIED |
| HEHbm Electrochemical CO | Lansing | IL | — | ◇ UNVERIFIED |
| HRHcma Rhq | Newnan | GA | — | ◇ UNVERIFIED |
| HSHd Supply Construction Supply LTD | Hyattsville | MD | — | ◇ UNVERIFIED |
| HSHd Supply Construction Supply LTD (fl117a-6413) | Sarasota | FL | — | ◇ UNVERIFIED |
| HSHd Supply Construction Supply, LTD Wc043 | Fort Collins | CO | — | ◇ UNVERIFIED |
| HSHd Supply Construction Supply LTD Wc251 | Miami | FL | — | ◇ UNVERIFIED |
| HMHead Manufacturing INC | South Elgin | IL | — | ◇ UNVERIFIED |
| HAHealy Awards INC | Menomonee Falls | WI | — | ◇ UNVERIFIED |
| HPHearn Plating CO INC | Toledo | OH | — | ◇ UNVERIFIED |
| HSHearthstone Stoves | Morristown | VT | — | ◇ UNVERIFIED |
| HEHeartland Engineered Products LLC | Harrison | OH | — | ◇ UNVERIFIED |
| HSHeartland Steel Products West, LLC LP | Lodi | CA | — | ◇ UNVERIFIED |
| HOHeart of Dixie Machine & Fab | Talladega | AL | — | ◇ UNVERIFIED |
| HSHeckert Systems LLC | Kansas City | MO | — | ◇ UNVERIFIED |
| HLHeggem Lundquist | Denver | CO | — | ◇ UNVERIFIED |
| HUHeiche US Surface Technology INC | Spartanburg | SC | — | ◇ UNVERIFIED |
| HIHelgesen Industries INC | Hartford | WI | — | ◇ UNVERIFIED |
| HLHemphill LLC | Tulsa | OK | — | ◇ UNVERIFIED |
 Hendrick Manufacturing CO | Carbondale | PA | — | ◇ UNVERIFIED |
| HPHenefelt Precision Products, INC | Largo | FL | — | ◇ UNVERIFIED |
| HMHercules Machinery Corporation | Fort Wayne | IN | — | ◇ UNVERIFIED |
| HPHercules Polishing and Plating LLC | Canton | OH | — | ◇ UNVERIFIED |
| HSHerron Steel CO INC | Tallahassee | FL | — | ◇ UNVERIFIED |
| HCHerr-voss Corporation-office Basement | Callery | PA | — | ◇ UNVERIFIED |
| HVHerr Voss Stamco Rci | New Ross | IN | — | ◇ UNVERIFIED |
| HCHertz Corporation | San Francisco | CA | — | ◇ UNVERIFIED |
| HHH & H Fabricators INC | Warrior | AL | — | ◇ UNVERIFIED |
| HHH H Howard CORP | Chicago | IL | — | ◇ UNVERIFIED |
| HPHialeah Plating Shop INC | Hialeah | FL | — | ◇ UNVERIFIED |
| HMHighland Machine and Screw Product CO | Highland | IL | — | ◇ UNVERIFIED |
| HPHighland Precision Plating INC | Hillsboro | OH | — | ◇ UNVERIFIED |
| HPHigh Purity Technology | Poughkeepsie | NY | — | ◇ UNVERIFIED |
| HTHigh Tech Finishing | Houston | TX | — | ◇ UNVERIFIED |
| HSHighway Systems Incorporated | Sumterville | FL | — | ◇ UNVERIFIED |
| HCHill Cross Co., INC. | West New York | NJ | — | ◇ UNVERIFIED |
| HPHill Plating Incorporated | Springfield | MO | — | ◇ UNVERIFIED |
| HHHired Hand Green | Bremen | AL | — | ◇ UNVERIFIED |
| HFHirsh Finishes, Dba Best Finishes, LLC | Colorado Springs | CO | — | ◇ UNVERIFIED |
| HIH I S Painting INC | Titusville | FL | — | ◇ UNVERIFIED |
| HMHispanic Mfg / Gonzalez Mfg | Detroit | MI | — | ◇ UNVERIFIED |
| HMHitachi Magnetics CORP | Edmore | MI | — | ◇ UNVERIFIED |
| HMHitech Metal Fabrication | Anaheim | CA | — | ◇ UNVERIFIED |
