| KBKeystone Bar Products INC | Chicago Heights | IL | — | ◇ UNVERIFIED |
| KBKeystone Biofuels | Shiremanstown | PA | — | ◇ UNVERIFIED |
| KSKgel Steel, INC | Riverside | CA | — | ◇ UNVERIFIED |
| KSKgs Steel, INC. | Nashville | TN | — | ◇ UNVERIFIED |
| KMKimmels Metalurgical Products [kmp] | Warsaw | KY | — | ◇ UNVERIFIED |
| KMKinder Morgan Transmix CO LLC | Hartford | IL | — | ◇ UNVERIFIED |
| KNK. N. M. Industries, INC. | Harwood Heights | IL | — | ◇ UNVERIFIED |
| KIK.n.m. Industries, INC. Dba Lexco Cable | Norridge | IL | — | ◇ UNVERIFIED |
| KIKoenig-stimens, INC. | Kiln | MS | — | ◇ UNVERIFIED |
| KFKoppers Follansbee Tar Plant | Follansbee | WV | — | ◇ UNVERIFIED |
| KMKorall Marine Facility | Lemont | IL | — | ◇ UNVERIFIED |
| KSKurland Steel CO | Urbana | IL | — | ◇ UNVERIFIED |
| KCKwik Cutting & Grinding | Compton | CA | — | ◇ UNVERIFIED |
| KSKyoei Steel Group | Anthony | TX | — | ◇ UNVERIFIED |
| LQLa Quinta Plant | Portland | TX | — | ◇ UNVERIFIED |
| LILarry Iron Works INC. | Bronx | NY | — | ◇ UNVERIFIED |
| LPLas Palmas Oil & Dehydration (sabre Oil) | Bakersfield | CA | — | ◇ UNVERIFIED |
| LMLasser Machine Shop LLC | Nogales | AZ | — | ◇ UNVERIFIED |
| LVLaurel Valley Metals | Blairsville | PA | — | ◇ UNVERIFIED |
| LFLb Foster Company- Arp Plant | Pueblo | CO | — | ◇ UNVERIFIED |
| LWLea Win INC | Fort Lupton, 6.8 Mi Ne of | CO | — | ◇ UNVERIFIED |
| LALeo's Automotive LLC | Littleton | CO | — | ◇ UNVERIFIED |
| LTLevy Texas Mill Services | Sinton | TX | — | ◇ UNVERIFIED |
| LSLexington Steel Corporation | Los Angeles | CA | — | ◇ UNVERIFIED |
| LSLiberty Steel Georgetown | Georgetown | SC | — | ◇ UNVERIFIED |
| LSLiberty Steel Laplace, INC. | Laplace | LA | — | ◇ UNVERIFIED |
| LSLinear Shower Drains, LLC | Ponte Vedra | FL | — | ◇ UNVERIFIED |
| LOLone Oak Large Animal Veterinary Services, INC | Visalia | CA | — | ◇ UNVERIFIED |
| MWMansell Welding, INC. | Lk Havasu Cty | AZ | — | ◇ UNVERIFIED |
| MAMaruichi American CORP | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
| MCMaster Cutting & Engineering INC | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
| MPMaui Petroleum, INC. | Kahului | HI | — | ◇ UNVERIFIED |
| MFMercedes Fabricating, INC. | Chicago Heights | IL | — | ◇ UNVERIFIED |
| MNMesabi Nugget Delaware LLC | Aurora | MN | — | ◇ UNVERIFIED |
| MSMetaldyne Sintered Ridgway LLC | Emporium | PA | — | ◇ UNVERIFIED |
| MPMetal Powder Prod/st Marys | Saint Marys | PA | — | ◇ UNVERIFIED |
| MSMetro Steel and Pipe Supply, INC | Leesburg | FL | — | ◇ UNVERIFIED |
| MSMetro Steel & Pipe Supply, INC. | Tavares | FL | — | ◇ UNVERIFIED |
| MIMetzgermoore, INC. | Atlanta | GA | — | ◇ UNVERIFIED |
| MMMicron Manufacturing Inc. | LaGrange | OH | — | ◇ UNVERIFIED |
| MCMid Continent Coal & Coke | East Chicago | IN | — | ◇ UNVERIFIED |
| MCMid Continent Coal & Coke | Milton | KY | — | ◇ UNVERIFIED |
| MCMid-continent Coal & Coke | East Chicago | IN | — | ◇ UNVERIFIED |
| MCMid-continent Coal & Coke | Portage | IN | — | ◇ UNVERIFIED |
| MCMid Continent Coal & Coke Company | East Chicago | IN | — | ◇ UNVERIFIED |
| MDMi Dept/transportation-g Howe Int'l Bridge | Detroit | MI | — | ◇ UNVERIFIED |
| MIMidwest Industrial Contract Services LLC | Youngstown | OH | — | ◇ UNVERIFIED |
| MIMidwest Industrial Contract Services, LLC | Girard | OH | — | ◇ UNVERIFIED |
| MSMidwest Scrap Management INC | Kansas City | MO | — | ◇ UNVERIFIED |
| MSMil Spe Magnetics INC | Pomona | CA | — | ◇ UNVERIFIED |
