| GTGreenfields Truss, INC. | Gentry | AR | — | ◇ UNVERIFIED |
| GIGrimmel Industries | Topsham | ME | — | ◇ UNVERIFIED |
| GMGriswold Machine & Engineering INC. (plant #2) | Union City | MI | — | ◇ UNVERIFIED |
| GIGsm Industrial INC Ephrata Plant | Ephrata | PA | — | ◇ UNVERIFIED |
| GCGulf Coast Metal Work INC | Cape Coral | 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 |
| HSHammett Steel LLC | Phenix City | AL | — | ◇ UNVERIFIED |
 Hardric Laboratories | Chelmsford | MA | — | ◇ UNVERIFIED |
| HRHarris Rebar Auburn | Auburn | WA | — | ◇ UNVERIFIED |
| HRHarris Rebar - Birmingham | Riverside | AL | — | ◇ 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 |
| HSHeckert Systems LLC | Kansas City | MO | — | ◇ UNVERIFIED |
| HLHemphill LLC | Tulsa | OK | — | ◇ UNVERIFIED |
| HSHerron Steel CO INC | Tallahassee | FL | — | ◇ UNVERIFIED |
| HHH & H Fabricators INC | Warrior | AL | — | ◇ UNVERIFIED |
| HSHighway Systems Incorporated | Sumterville | FL | — | ◇ UNVERIFIED |
| HMHispanic Mfg / Gonzalez Mfg | Detroit | MI | — | ◇ UNVERIFIED |
| HMHitech Metal Fabrication | Anaheim | CA | — | ◇ UNVERIFIED |
| HBHokes Bluff Welding & Fab | Hokes Bluff | AL | — | ◇ UNVERIFIED |
| HSHomestead Sheet Metal | Spring Valley | CA | — | ◇ UNVERIFIED |
| HIHouma Industries Division of Lor | Harvey | LA | — | ◇ UNVERIFIED |
| IIImm Incorporated | Grayling | MI | — | ◇ UNVERIFIED |
| IFIms Fabrication | Salisbury | NC | — | ◇ UNVERIFIED |
| IIInduction Iron | Austintown | OH | — | ◇ UNVERIFIED |
| IEIndustrial Enterpries INC | Jefferson City | MO | — | ◇ UNVERIFIED |
| IFIndustrial Fabrication & Machining INC | Waterloo | IA | — | ◇ UNVERIFIED |
| IWIndustrial _machine Works | Etna | PA | — | ◇ UNVERIFIED |
| IMIndustrial Metal Fab | Newton | KS | — | ◇ UNVERIFIED |
| IRIndustrial Resource, INC. | Fairmont | WV | — | ◇ UNVERIFIED |
| ISIndustrial Steel Corporation | Pearl | MS | — | ◇ UNVERIFIED |
| IInfra-metals | Atlanta | GA | — | ◇ 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 |
| IGIra G Steffy & Son Inc/newport Rd | Ephrata | PA | — | ◇ UNVERIFIED |
| IIIri International Corporation | Pampa | TX | — | ◇ UNVERIFIED |
| JAJacobs Applied Tech: Goose Creek | Goose Creek | SC | — | ◇ UNVERIFIED |
| JCJarke CORP | Niles | IL | — | ◇ UNVERIFIED |
| JSJeffords Steel & Engineering CO | Plattsburgh | NY | — | ◇ UNVERIFIED |
| JFJendel Fabricating and Machine | Beckley | WV | — | ◇ UNVERIFIED |
| JOJennmar of Kentucky INC | Winchester | KY | — | ◇ UNVERIFIED |
| JLJered LLC | Brunswick | GA | — | ◇ UNVERIFIED |
| JFJesco Fabrication Shop | Tupelo | MS | — | ◇ UNVERIFIED |
| JKJ K Fabrication & Supply LLC | Butte | MT | — | ◇ UNVERIFIED |
| JMJohnson Machine Works INC | Chariton | IA | — | ◇ UNVERIFIED |
| JSJones Sign, INC. | Phoenix | AZ | — | ◇ UNVERIFIED |
| JRJ Ray Mcdermott INC West Yd | Amelia | LA | — | ◇ UNVERIFIED |
| JSJ S Alberici Construction | Saint Louis | MO | — | ◇ UNVERIFIED |
| JIJwf Industries, INC. | Trussville | AL | — | ◇ UNVERIFIED |
| KMKanawha Manufacturing- Acm | Charleston | WV | — | ◇ UNVERIFIED |
| KMKanawha Manufacturing CO | Eleanor | WV | — | ◇ UNVERIFIED |
| KRKaspar Ranch Hand | Shiner | TX | — | ◇ UNVERIFIED |
| KMKiczan Manufacturing INC | N Versailles | PA | — | ◇ UNVERIFIED |
| KSKimes Steel | New Haven | WV | — | ◇ UNVERIFIED |
| KSKing Steel INC | Lawrenceville | GA | — | ◇ UNVERIFIED |
| KTKinro Texas | Mansfield | TX | — | ◇ UNVERIFIED |
| KIKline Iron & Steel CO INC | Columbia | SC | — | ◇ UNVERIFIED |
| KIKline Iron & Steel Co., INC. | West Columbia | SC | — | ◇ UNVERIFIED |
| KIKlute INC | York | NE | — | ◇ UNVERIFIED |
| KMKoester Metals, INC. | Defiance | OH | — | ◇ UNVERIFIED |
| KCKonitz Construction INC | Tarpon Spgs | FL | — | ◇ UNVERIFIED |
| KPKonstant Products INC | Quincy | IL | — | ◇ UNVERIFIED |
| KFKoppel Fabrication INC | Sweet Springs | MO | — | ◇ UNVERIFIED |
| KIKoppers INC - Rail Products & Services | Huntington | WV | — | ◇ UNVERIFIED |
| KBKrush Brau German Beer Garden | Kissimmee | FL | — | ◇ UNVERIFIED |
| KCKvf CO | Elk Grove Village | IL | — | ◇ UNVERIFIED |
| LFLa Fiberglass LLC | Bogalusa | LA | — | ◇ UNVERIFIED |
| LCLake Cities Fabrication | Lewisville | TX | — | ◇ UNVERIFIED |
| LMLegris Mfg. CO INC | Kankakee | IL | — | ◇ UNVERIFIED |
| LMLeman Machine CO INC | Portage | PA | — | ◇ UNVERIFIED |
| LSLenex Steel | Indianapolis | IN | — | ◇ UNVERIFIED |
| LALennox Aes-tallassee | Tallassee | AL | — | ◇ UNVERIFIED |
| LTLetourneau Technologies, INC | Vicksburg | MS | — | ◇ UNVERIFIED |
| LBLiebovich Brothers INC | Rockford | IL | — | ◇ UNVERIFIED |
| LSLincoln Steel Corporation | Lincoln | NE | — | ◇ UNVERIFIED |
| LTLindsay Trnsprtn Solutions INC | Omaha | NE | — | ◇ UNVERIFIED |
 Lippert Components, INC | Goshen | IN | — | ◇ UNVERIFIED |
| Lippert Components Plant 084 | Nampa | ID | — | ◇ UNVERIFIED |
| Lippert Components Plant 151 | Kendallville | IN | — | ◇ UNVERIFIED |
| LWLittle Washington Fabrications, INC. | Christiana | PA | — | ◇ UNVERIFIED |
| LIL&n Industries INC | Rushville | IL | — | ◇ UNVERIFIED |
| LELobdell Emery Mfg CO | Alma | MI | — | ◇ UNVERIFIED |
| MMMachined Metals Mfg INC | Collegeville | PA | — | ◇ UNVERIFIED |
| MHMack Hils, INC. | Moberly | MO | — | ◇ UNVERIFIED |
| MIMadison INC / 8500 New Sapulpa Rd | Tulsa | OK | — | ◇ UNVERIFIED |
| MIMadison Industries | Los Angeles | CA | — | ◇ UNVERIFIED |
| MPMagga Products Company INC | Holly Hill | FL | — | ◇ UNVERIFIED |
| MMMagnuson Metals Utah, LLC | Salt Lake City | UT | — | ◇ UNVERIFIED |
| MSManitex Sabre INC | Knox | IN | — | ◇ UNVERIFIED |
