| HCHart & Cooley INC | Tucson | AZ | — | ◇ UNVERIFIED |
| HMHartzell Mfg CO INC (0857092018) | Miamisburg | OH | — | ◇ UNVERIFIED |
| HSHavens Steel Company | Kansas City | MO | — | ◇ 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 |
| HSHearthstone Stoves | Morristown | VT | — | ◇ UNVERIFIED |
| HEHeartland Engineered Products LLC | Harrison | OH | — | ◇ UNVERIFIED |
| HSHeartland Steel Products West, LLC LP | Lodi | CA | — | ◇ UNVERIFIED |
| HFHeat Fab INC | Turners Falls | MA | — | ◇ UNVERIFIED |
| HSHeckert Systems LLC | Kansas City | MO | — | ◇ UNVERIFIED |
| HLHemphill LLC | Tulsa | OK | — | ◇ UNVERIFIED |
| HSHerron Steel CO INC | Tallahassee | FL | — | ◇ UNVERIFIED |
| HCHerr-voss Corporation-office Basement | Callery | PA | — | ◇ UNVERIFIED |
| HHH & H Fabricators INC | Warrior | AL | — | ◇ UNVERIFIED |
| HCHi Craft Metal Products | Gardena | CA | — | ◇ UNVERIFIED |
| HMHighland Machine | Oak Hill | WV | — | ◇ UNVERIFIED |
| HMHighland Machine and Screw Product CO | Highland | IL | — | ◇ UNVERIFIED |
| HSHighway Systems Incorporated | Sumterville | FL | — | ◇ UNVERIFIED |
| HMHispanic Mfg / Gonzalez Mfg | Detroit | MI | — | ◇ UNVERIFIED |
| HMHitech Metal Fabrication | Anaheim | CA | — | ◇ UNVERIFIED |
| HDHm Dunn | Euless | TX | — | ◇ UNVERIFIED |
| HGHme Global LLC - Fusionone | New Iberia | LA | — | ◇ UNVERIFIED |
| HCHmw Contracting LLC | Detroit | MI | — | ◇ UNVERIFIED |
| HLHn Lucas & Son | Delran Twp | NJ | — | ◇ UNVERIFIED |
| HEHoffman Enclosure Dba Pentair Equipment Protection | Anoka | MN | — | ◇ UNVERIFIED |
| HBHokes Bluff Welding & Fab | Hokes Bluff | AL | — | ◇ UNVERIFIED |
| HIHolly Industries INC | Hornick | IA | — | ◇ UNVERIFIED |
| HDHomalite Div of Brandywine Inv Group | Wilmington | DE | — | ◇ UNVERIFIED |
| HSHomestead Sheet Metal | Spring Valley | CA | — | ◇ UNVERIFIED |
| HIHoneywell International INC. | Tucson | AZ | — | ◇ UNVERIFIED |
| HIHouma Industries Division of Lor | Harvey | LA | — | ◇ UNVERIFIED |
| HOHouse of Metal Enclosures Inc-house of Metal Enclosures INC | Hermann | MO | — | ◇ UNVERIFIED |
| HPHouston Plant | Houston | TX | — | ◇ UNVERIFIED |
| HSH & S Machine Shop | Hurricane | UT | — | ◇ UNVERIFIED |
| HFHutchinson Fts INC Livingston Division | Livingston | TN | — | ◇ UNVERIFIED |
| HMHypar Machine Company, Richwood | Richwood | WV | — | ◇ UNVERIFIED |
| IAI & a Inc., Dba Peninsula Metal Fabrication | San Jose | CA | — | ◇ UNVERIFIED |
| IRImco Reinforced Plastics INC | Moorestown | NJ | — | ◇ UNVERIFIED |
| IIImm Incorporated | Grayling | MI | — | ◇ UNVERIFIED |
| IIImpac International | Fontana | CA | — | ◇ UNVERIFIED |
 Imperial Machine & Tool CO LLC | Wadsworth | OH | — | ◇ UNVERIFIED |
| IFIms Fabrication | Salisbury | NC | — | ◇ UNVERIFIED |
| IIInduction Iron | Austintown | OH | — | ◇ UNVERIFIED |
| IEIndustrial Enterpries INC | Jefferson City | MO | — | ◇ UNVERIFIED |
| IFIndustrial Fabricating | East Syracuse | NY | — | ◇ UNVERIFIED |
| IFIndustrial Fabrication & Machining INC | Waterloo | IA | — | ◇ UNVERIFIED |
| IWIndustrial _machine Works | Etna | PA | — | ◇ UNVERIFIED |
| IMIndustrial Metal Fab | Newton | KS | — | ◇ UNVERIFIED |
| IPIndustrial Piping INC | Pineville | NC | — | ◇ UNVERIFIED |
| IPIndustrial Piping Specialists INC | Mcpherson | KS | — | ◇ UNVERIFIED |
| IPIndustrial Plating & Machine, Inc., Princeton | Princeton | WV | — | ◇ UNVERIFIED |
| IRIndustrial Resource, INC. | Fairmont | WV | — | ◇ UNVERIFIED |
| ISIndustrial Steel Corporation | Pearl | MS | — | ◇ UNVERIFIED |
| IAInfinite Ascent LLC | San Marcos | CA | — | ◇ UNVERIFIED |
| IInfra-metals | Atlanta | GA | — | ◇ UNVERIFIED |
| IMInterlake Mecalux INC | Melrose Park | IL | — | ◇ UNVERIFIED |
| ISIntermountain Steel | Colorado Springs | CO | — | ◇ UNVERIFIED |
| IBInternational Bridge & Iron CO | Newington | CT | — | ◇ UNVERIFIED |
| IIInwesco INC | Azusa | CA | — | ◇ UNVERIFIED |
| ISIowa Steel Fabricators, LLC | Osceola | IA | — | ◇ UNVERIFIED |
| ITIpsco Tubulars Oklahoma INC / 5610 Bird Creek Ave | Catoosa | OK | — | ◇ UNVERIFIED |
| IGIra G Steffy & Son Inc/newport Rd | Ephrata | PA | — | ◇ UNVERIFIED |
| IIIri International Corporation | Pampa | TX | — | ◇ UNVERIFIED |
| IMIron Mountain Machine Company | Iron Mountain | MI | — | ◇ UNVERIFIED |
| IAIroquois Assembly Systems | Warren | MI | — | ◇ UNVERIFIED |
| ILIspt LLC | Story City | IA | — | ◇ UNVERIFIED |
| IItt | Panama City | FL | — | ◇ UNVERIFIED |
| INIvi North INC Plant 3 | Greenville | WI | — | ◇ UNVERIFIED |
| JCJabil Circuit INC | Fremont | CA | — | ◇ UNVERIFIED |
| JIJabil INC. | Fremont | CA | — | ◇ UNVERIFIED |
| JAJacobs Applied Tech: Goose Creek | Goose Creek | SC | — | ◇ UNVERIFIED |
| JIJamison Industries INC | Taylor | MI | — | ◇ UNVERIFIED |
| JIJanus International | Orlando | FL | — | ◇ UNVERIFIED |
| JCJarke CORP | Niles | IL | — | ◇ UNVERIFIED |
| JIJbm, INC. | Knoxville | TN | — | ◇ UNVERIFIED |
| JCJcp&l Central Warehouse | Rockaway | NJ | — | ◇ UNVERIFIED |
| JSJeffords Steel & Engineering CO | Plattsburgh | NY | — | ◇ UNVERIFIED |
| JFJendel Fabricating and Machine | Beckley | WV | — | ◇ UNVERIFIED |
| JOJennmar of Kentucky INC | Winchester | KY | — | ◇ UNVERIFIED |
| JBJensen Bridge & Supply CO | Sandusky | MI | — | ◇ UNVERIFIED |
| JLJered LLC | Brunswick | GA | — | ◇ UNVERIFIED |
| JMJerith Manufacturing LLC | Philadelphia | PA | — | ◇ UNVERIFIED |
| JFJesco Fabrication Shop | Tupelo | MS | — | ◇ UNVERIFIED |
| JPJet Pulverizer CO | Moorestown | NJ | — | ◇ UNVERIFIED |
| JJJ & J Drainage Products CO | Hutchinson | KS | — | ◇ UNVERIFIED |
| JMJ&j Machine Inc, J&j Machine | Elk River | MN | — | ◇ UNVERIFIED |
| JKJ K Fabrication & Supply LLC | Butte | MT | — | ◇ UNVERIFIED |
| JIJlmc INC | Ontario | CA | — | ◇ UNVERIFIED |
| JMJohn M Hill Mach CO | Hamburg | PA | — | ◇ UNVERIFIED |
 Johns Manville | Lewiston | ME | — | ◇ UNVERIFIED |
| JMJohnson Machine Works INC | Chariton | IA | — | ◇ UNVERIFIED |
| JBJohnston Boiler Co-ferrysburg | Ferrysburg | MI | — | ◇ UNVERIFIED |
| JMJones Metal Products INC | Mankato | MN | — | ◇ UNVERIFIED |
| JSJones Sign, INC. | Phoenix | AZ | — | ◇ UNVERIFIED |
| JWJones Welding | Mobile | AL | — | ◇ UNVERIFIED |
| JMJoy Mining Machinery | Abingdon | VA | — | ◇ UNVERIFIED |
| JRJ Ray Mcdermott INC West Yd | Amelia | LA | — | ◇ UNVERIFIED |
| JSJ S Alberici Construction | Saint Louis | MO | — | ◇ UNVERIFIED |
