| IBItw Building Components Group, INC | Litchfield | IL | — | ◇ UNVERIFIED |
| JIJanus International | Orlando | FL | — | ◇ UNVERIFIED |
| JAJ & a Powder Coating | Oakdale | CA | — | ◇ UNVERIFIED |
| JMJared Manufacturing CO. INC. | Norwalk | CT | — | ◇ UNVERIFIED |
| JBJay Bryant | Sacramento | CA | — | ◇ UNVERIFIED |
| JGJay Gee Manufacturing a Div of Griffin Industries | Butler | KY | — | ◇ UNVERIFIED |
| JBJ B Ornamental Iron | San Mateo | CA | — | ◇ UNVERIFIED |
| JIJ.c.m. Industries, INC | Salt Lake City | UT | — | ◇ UNVERIFIED |
| JMJ-e Manufacturing CO Dba J-e Earll Manufacturing | Shakopee | MN | — | ◇ UNVERIFIED |
| JSJesus Santana | Fontana | CA | — | ◇ UNVERIFIED |
| JCJit Companies INC | Green Isle | MN | — | ◇ UNVERIFIED |
| JJJ & J Machining Welding & Fabrication | Mason City | IA | — | ◇ UNVERIFIED |
| JSJohnson S Boiler Sev | Benwood | WV | — | ◇ UNVERIFIED |
| JMJoy Mining Machinery | Abingdon | VA | — | ◇ UNVERIFIED |
| JWJP Welding LLC | Raymore | MO | — | ◇ UNVERIFIED |
| JIJv Industrial Beaumont | Beaumont | TX | — | ◇ UNVERIFIED |
| JIJv Industrial La Porte | La Porte | TX | — | ◇ UNVERIFIED |
| JIJv Industrial Skiatook | Skiatook | OK | — | ◇ UNVERIFIED |
| KJKDK Jet Property Management LLC | Bellevue | ID | — | ◇ UNVERIFIED |
| KFKds Fabrication and Machining Specialties, INC. | Hiddenite | NC | — | ◇ UNVERIFIED |
| KMKeicher Metal Arts Inc | Cairo | NY | — | ◇ UNVERIFIED |
| KCKendra Construction Service INC | Bakersfield | CA | — | ◇ UNVERIFIED |
| KGKen Garner Manufacturing | Rural Hall | NC | — | ◇ UNVERIFIED |
| KGKen Garner Manufacturing - Rho, INC. | Rural Hall | NC | — | ◇ UNVERIFIED |
| KBKeystone Boiler Works, INC. | Pottstown | PA | — | ◇ UNVERIFIED |
| KMKeystone Machine Works | Sand Springs | OK | — | ◇ UNVERIFIED |
| KBKickham Boiler & Engineering | Saint Louis | MO | — | ◇ UNVERIFIED |
| KPKilgore Plant | Kilgore | TX | — | ◇ UNVERIFIED |
| KTKing Tool Company | Longview | TX | — | ◇ UNVERIFIED |
| KMKinksbridge Metal CO | Carrollton | GA | — | ◇ UNVERIFIED |
| KCKinton Carbide, INC. | Export | PA | — | ◇ UNVERIFIED |
| KCKisner Corporation | Raleigh | NC | — | ◇ UNVERIFIED |
| KWKJC Welding LLC | Falcon | MO | — | ◇ UNVERIFIED |
| KIKolemba Industries, INC. | Gallatin | TN | — | ◇ UNVERIFIED |
| KWKoski Welding INC | Baraga | MI | — | ◇ UNVERIFIED |
| KIKsq Incorporated | Winfield | KS | — | ◇ UNVERIFIED |
| KMKumi Manufacturing Alabama LLC | Vanport | PA | — | ◇ UNVERIFIED |
| KBKupferer Brothers-st Louis | Saint Louis | MO | — | ◇ UNVERIFIED |
| KPKvaerner Power | Williamsport | PA | — | ◇ UNVERIFIED |
| KLKwf LLC | Griswold | IA | — | ◇ UNVERIFIED |
 L3harris Maritime Services INC. | Jacksonville | FL | — | ◇ UNVERIFIED |
| LUL-3 Unidyne INC | Jacksonville | FL | — | ◇ UNVERIFIED |
| LELaptalo Enterprises, INC. | San Jose | CA | — | ◇ UNVERIFIED |
| LFLaser Fabrication & Machine Co., INC. | Wellington | AL | — | ◇ UNVERIFIED |
| LWLawless Welding INC | Webbs Cross Roads | KY | — | ◇ UNVERIFIED |
| LPLee Products CORP. | Jacksonville | FL | — | ◇ UNVERIFIED |
| LSLinders Specialty Company INC | Saint Paul | MN | — | ◇ UNVERIFIED |
 Linita Design & Mfg CORP | Lackawanna | NY | — | ◇ UNVERIFIED |
 Lippert Components INC | Ocala | FL | — | ◇ UNVERIFIED |
| Lippert Components INC | Goshen | IN | — | ◇ UNVERIFIED |
| LWLittle Washington Fabrications, INC. | Middletown | PA | — | ◇ UNVERIFIED |
| LML&n Metal Works LLC | Gillett | WI | — | ◇ UNVERIFIED |
| LCLogan Corporation INC | Salyersville | KY | — | ◇ UNVERIFIED |
| LDLonestar Dock Products LLC. | Mount Pleasant | TX | — | ◇ UNVERIFIED |
| LRLtc Roll & Engineering | Clinton Twp | MI | — | ◇ UNVERIFIED |
| MTManchester Tank and Equipment | Petersburg | VA | — | ◇ UNVERIFIED |
| MTManchester Tank & Equipment CO | Bedford | IN | — | ◇ UNVERIFIED |
| MWMansfield Welding Services LLC | Oakwood | OH | — | ◇ UNVERIFIED |
| MLManufab, LLC | Rexburg | ID | — | ◇ UNVERIFIED |
| MKMark Knoedler | Ijamsville | MD | — | ◇ UNVERIFIED |
| MWMarks Welding & Fabricating | Thorsby | AL | — | ◇ UNVERIFIED |
| MIMarstrand Industries, INC. | Pittsburgh | PA | — | ◇ UNVERIFIED |
| MWMartin Welding and Fabrication LLC | Contoocook | NH | — | ◇ UNVERIFIED |
| MCMauser Container Services | Blacklick | OH | — | ◇ UNVERIFIED |
| MHMckee Holdings LLC | Sandy | OR | — | ◇ UNVERIFIED |
| MMMedia Metals, LLC | Jackson | TN | — | ◇ UNVERIFIED |
| MEMerrill Engineering & Integration | Saginaw | MI | — | ◇ UNVERIFIED |
| MIMerrill Iron & Steel South | Springfield | MO | — | ◇ UNVERIFIED |
| MMMesser Machine - Mfg INC | Windom | MN | — | ◇ UNVERIFIED |
| MLMetalCraft LLC | Bantam | CT | — | ◇ UNVERIFIED |
| MRMetalmade Raingutter & Sheetmetal INC | Irvine | CA | — | ◇ UNVERIFIED |
| MSMetal Sales Manufacturing CORP. | Longmont | CO | — | ◇ UNVERIFIED |
| MTMetal Tech, INC. | Fargo | ND | — | ◇ UNVERIFIED |
| MWMetal Works INC. | Spencer | IA | — | ◇ UNVERIFIED |
| MSMetro Steel Fab INC | San Jose | CA | — | ◇ UNVERIFIED |
| MMMexia Main, East, and West Plants | Mexia | TX | — | ◇ UNVERIFIED |
 Mgt Manufacturing LLC | Springville | AL | — | ◇ UNVERIFIED |
| Mgt Manufacturing LLC | Springville | AL | — | ◇ UNVERIFIED |
| MDMi Dept/natural Resources and Environment | River Rouge | MI | — | ◇ UNVERIFIED |
| MSMid South Industrial INC. | Gregory | TX | — | ◇ UNVERIFIED |
| MMMid-state Machine & Fabricating Corporation | Lakeland | FL | — | ◇ UNVERIFIED |
| MMMid-states Mechanical Services INC | Mankato | MN | — | ◇ UNVERIFIED |
| MAMidwest Automation, INC. | Heavener | OK | — | ◇ UNVERIFIED |
| MMMidwest Manufacturing Corporation | Omaha | NE | — | ◇ UNVERIFIED |
| MSMiguel's Sheet Metal | Los Angeles | CA | — | ◇ UNVERIFIED |
| MPMillenia Products Group. INC. | Itasca | IL | — | ◇ UNVERIFIED |
 Miller Welding & Machine CO | Brookville | PA | — | ◇ UNVERIFIED |
| MMMill Man Steel INC | Fontana | CA | — | ◇ UNVERIFIED |
| MMMinnesota Metalworks INC | Perham | MN | — | ◇ UNVERIFIED |
| MMMinnotte Manufacturing Corporation | Trafford | PA | — | ◇ UNVERIFIED |
| MWMk Welding & Fabrication, INC. | Waynesville | OH | — | ◇ UNVERIFIED |
| MRMMC Real Estate Investments, LLC | Warren | MI | — | ◇ UNVERIFIED |
| MWModern Welding Company (0145020338) | Newark | OH | — | ◇ UNVERIFIED |
| MWModern Welding CO of Kentucky INC | War Creek | KY | — | ◇ UNVERIFIED |
| MMModine Mfg/laporte/pemberville | La Porte | IN | — | ◇ UNVERIFIED |
| MMMontgomery Metal Craft INC | Springfield | MO | — | ◇ UNVERIFIED |
| MFMoore Flame Cutting Company | Bloomfield Hills | MI | — | ◇ UNVERIFIED |
| MFMoore's Fiberglass, INC. | Walstonburg | NC | — | ◇ UNVERIFIED |
| MMMoorhead Machinery - Boiler CO | Minneapolis | MN | — | ◇ UNVERIFIED |
| MSMsi Structural | South Gate | CA | — | ◇ UNVERIFIED |
