| LLeviat | Converse | TX | — | ◇ UNVERIFIED |
| LSLeviat San Antonio Facility | San Antonio | TX | — | ◇ UNVERIFIED |
| LSLewis Steel INC | Terra Bella | CA | — | ◇ UNVERIFIED |
| LILexicon, INC. Dba Prospect Steel Company | Blytheville | AR | — | ◇ UNVERIFIED |
| LHL & H Iron INC Dba Lartech | San Jose | CA | — | ◇ UNVERIFIED |
| LNLiberal New Iron and Metal | Liberal | KS | — | ◇ UNVERIFIED |
| LALiberty Aluminum CO | Lehigh Acres | FL | — | ◇ UNVERIFIED |
| LFLiberty Fabricators INC | Flint | MI | — | ◇ UNVERIFIED |
 Liberty Welding & Iron Works CO. | Metairie | LA | — | ◇ UNVERIFIED |
| LTLife Time Gate | Tualatin | OR | — | ◇ UNVERIFIED |
| LGLight Gauge Solutions, Inc. | Arlington | TX | — | ◇ UNVERIFIED |
| LSLightning Steel, INC. | Plant City | FL | — | ◇ UNVERIFIED |
| LWLight's Welding Incorporated | Lititz | PA | — | ◇ UNVERIFIED |
| LPLinde Process Plants, INC. | Watford City | ND | — | ◇ UNVERIFIED |
| LELinder Enterprises INC | Mankato | MN | — | ◇ UNVERIFIED |
| LTLindsay Transportation Solutions INC. | Rio Vista | CA | — | ◇ UNVERIFIED |
| LILinton Industries, INC | Washington | NC | — | ◇ UNVERIFIED |
| LSLiphart Steel Company, INC. | Verona | VA | — | ◇ UNVERIFIED |
| LCLippert Compenents - Plant 120 | Burnsville | MS | — | ◇ UNVERIFIED |
 Lippert Components | Goshen | IN | — | ◇ UNVERIFIED |
| Lippert Components, INC. | Jackson Center | OH | — | ◇ UNVERIFIED |
| Lippert Components INC Plant 20 | Longview | TX | — | ◇ UNVERIFIED |
| LCLippert Componets Plant 59 | Elkhart | IN | — | ◇ UNVERIFIED |
| LPLippert Plant 85 | Goshen | IN | — | ◇ UNVERIFIED |
| LILitecrete, INC. | Miami | FL | — | ◇ UNVERIFIED |
| LSLittell Steel Co/bridgewater | New Brighton | PA | — | ◇ UNVERIFIED |
| LJLittle Joe's Welding and Sons, INC. | Bossier City | LA | — | ◇ UNVERIFIED |
| LFLivingston Family Trust Dated August 24,2020 | El Cajon | CA | — | ◇ UNVERIFIED |
| LTLivonia Tool and Laser | Litchfield | MI | — | ◇ UNVERIFIED |
| LILiw INC | Ramsey | MN | — | ◇ UNVERIFIED |
| LALj Allstar Enterprises, INC. | Moore | OK | — | ◇ UNVERIFIED |
| LILjl Ironworks LLC | Burlington | WA | — | ◇ UNVERIFIED |
| LGL.k. Goodwin Co., INC. | Providence | RI | — | ◇ UNVERIFIED |
| LOL&L Ornamental | Albany | OR | — | ◇ UNVERIFIED |
| LELLS Enterprises, Corp. | Freetown | MA | — | ◇ UNVERIFIED |
| LELmc Enterprises INC Dba Lowry Manufacturing CO | Lowry | MN | — | ◇ UNVERIFIED |
| LILm Industrial, INC. | Orlando | FL | — | ◇ UNVERIFIED |
| LML. & M. Ornamental Iron Co, INC. | Knoxville | TN | — | ◇ UNVERIFIED |
| LMLmt Mercer Group INC | Lawrenceville | NJ | — | ◇ UNVERIFIED |
| LML & M Welding, Inc. | Chicago | IL | — | ◇ UNVERIFIED |
| LML & M Welding INC | Tangent | OR | — | ◇ UNVERIFIED |
| LBL.n. Bross CO. INC. | Palmyra | MO | — | ◇ UNVERIFIED |
| LFLodi Fab Industries INC | Lodi | CA | — | ◇ UNVERIFIED |
| LOLoftus Ornamental Iron INC | Minneapolis | MN | — | ◇ UNVERIFIED |
| LOLoftus Ornamental Iron INC | Plymouth | MN | — | ◇ UNVERIFIED |
| LLokes | Clovis | CA | — | ◇ UNVERIFIED |
| LTLonestar Tooling Solutions | San Antonio | TX | — | ◇ UNVERIFIED |
| LBLong Beach/msm Enterprises | Long Beach | CA | — | ◇ UNVERIFIED |
| LPLookout Plating, INC. | Chattanooga | TN | — | ◇ UNVERIFIED |
| LILoran INC | Redlands | CA | — | ◇ UNVERIFIED |
| LLorrich | Cavalier | ND | — | ◇ UNVERIFIED |
| LSLortz & Son Mfg CO | Bakersfield | CA | — | ◇ UNVERIFIED |
| LNLouis Nop | Middlebury | VT | — | ◇ UNVERIFIED |
| LILPG Industries Inc | Clifton Heights | PA | — | ◇ UNVERIFIED |
| LWLpi Worldwide INC | Chicago | IL | — | ◇ UNVERIFIED |
| LRL & R Industries, INC. | Cabool | MO | — | ◇ UNVERIFIED |
| LSL & S Manufacturing, INC. | Orange City | FL | — | ◇ UNVERIFIED |
| LILTTR Inc | Salt Lake City | UT | — | ◇ UNVERIFIED |
| LCLub Co | Pittsburgh | PA | — | ◇ UNVERIFIED |
| LILufkin Industries LLC | Levelland | TX | — | ◇ UNVERIFIED |
| LMLukjan Metal Products Carolina, INC. | Kings Mountain | NC | — | ◇ UNVERIFIED |
| LLLuvera LLC | Orange | CA | — | ◇ UNVERIFIED |
| LILuzerne Iron Works, INC. | Luzerne | PA | — | ◇ UNVERIFIED |
| LSLV Steel & Fabrication LLC | Allentown | PA | — | ◇ UNVERIFIED |
| LSLyndon Steel Company LLC | High Point | NC | — | ◇ UNVERIFIED |
| LILynx Iron Corporation | Bakersfield | CA | — | ◇ UNVERIFIED |
| MIMace Iron Works, INC. | Chicago | IL | — | ◇ UNVERIFIED |
| MAMachine Applications Technology INC | San Jose | CA | — | ◇ UNVERIFIED |
| MIMacias Iron Works | Anaheim | CA | — | ◇ UNVERIFIED |
| MIMadison Industries, INC of Oklahoma | Tulsa | OK | — | ◇ UNVERIFIED |
| MMMadison-smith Machine & Tool CO LLC | Glasgow | KY | — | ◇ UNVERIFIED |
| MRMad River Fabricating LTD | Springfield | OH | — | ◇ UNVERIFIED |
| MNMageba North America | Riverside | CA | — | ◇ UNVERIFIED |
| MUMageba Usa, LLC | Pottstown | PA | — | ◇ UNVERIFIED |
| MCMaggie Chacon | El Paso | TX | — | ◇ UNVERIFIED |
| MSMagni-fab Southwest Company, INC. | Howe | TX | — | ◇ UNVERIFIED |
| MSMain Street Fabrications and Manufacturing, LLC | Brooksville | FL | — | ◇ UNVERIFIED |
| MMMaintenance & Machinery Erectors, INC. | Mulberry | FL | — | ◇ UNVERIFIED |
| MWMajestic Water Spouts, LLC | Mesa | AZ | — | ◇ UNVERIFIED |
| MFMallasch Fence Supply Steven | Pacoima | CA | — | ◇ UNVERIFIED |
| MFMann's Fabrication & Welding Inc. | Columbus | OH | — | ◇ UNVERIFIED |
| MGManpower Group | Amarillo | TX | — | ◇ UNVERIFIED |
| MMMansfield Metal Solutions LLC | Ontario | CA | — | ◇ UNVERIFIED |
| MMMantis Metalcraft LLC | Columbus | OH | — | ◇ UNVERIFIED |
| MIManufab, INC. | Bay Saint Louis | MS | — | ◇ UNVERIFIED |
| MWManz Work, INC. | Orlando | FL | — | ◇ UNVERIFIED |
| MIMarano Ironworks, INC. | Norristown | PA | — | ◇ UNVERIFIED |
| MSMarina Security Gate, INC. | Gardena | CA | — | ◇ UNVERIFIED |
| MFMarine Fab & Repair, INC | Houma | LA | — | ◇ UNVERIFIED |
| MBMark Body Truck & Equipment CO | Imlay City | MI | — | ◇ UNVERIFIED |
| MGMark Godfrey Sr Individual Dba United Iron Works | Orland | CA | — | ◇ UNVERIFIED |
| MMMarkle Manufacturing Company of San Antonio | San Antonio | TX | — | ◇ UNVERIFIED |
| MMMarks Metal Technology INC | Clackamas | OR | — | ◇ UNVERIFIED |
| MSMark Steel CORP | Salt Lake City | UT | — | ◇ UNVERIFIED |
| MLMarrick LLC | Norfolk | VA | — | ◇ UNVERIFIED |
| MMMartelli's Metal Fabrication INC | Ivyland | PA | — | ◇ UNVERIFIED |
| MSMartha S Materials INC | Lexington | KY | — | ◇ UNVERIFIED |
| MIMarti, Inc. | Bemidji | MN | — | ◇ UNVERIFIED |
| MSMartinez Steel | San Francisco | CA | — | ◇ UNVERIFIED |
| MIMartin Iron Works, INC | Reno | NV | — | ◇ UNVERIFIED |
