| KCKanthal Corporation | Bethel | CT | Primary Metal Manufacturing331221 | 20-99 | ● ACTIVE |
Kapp Alloy & Wire, INC | Oil City | PA | Primary Metal Manufacturing331491 | 1-19 | ● ACTIVE |
Karan and Associates, INC | Fontana | CA | Primary Metal Manufacturing331210 | 1-19 | ● ACTIVE |
| KCKawneer CO INC | Bloomsburg | PA | Primary Metal Manufacturing331318 | 100-499 | ● ACTIVE |
Kennametal INC | La Vergne | TN | Primary Metal Manufacturing331491 | 100-499 | ● ACTIVE |
| KVKennedy Valve Div Mc Wane INC | Elmira | NY | Primary Metal Manufacturing331511 | 100-499 | ● ACTIVE |
| KSKentucky Smelting Technology INC | Paris | KY | Primary Metal Manufacturing331314 | — | ● ACTIVE |
| KCKeymark CORP of Florida | Lakeland | FL | Primary Metal Manufacturing331314 | 100-499 | ● ACTIVE |
K & H Precision Products, INC. | Honeoye Falls | NY | Primary Metal Manufacturing331524 | — | ● ACTIVE |
Kimura Foundry America, INC | Shelbyville | IN | Primary Metal Manufacturing331511 | 20-99 | ● ACTIVE |
| KCKingsbury Castings Division | Kingsbury | IN | Primary Metal Manufacturing331511 | 20-99 | ● ACTIVE |
Kittyhawk INC | Garden Grove | CA | Primary Metal Manufacturing331111 | 20-99 | ● ACTIVE |
Knoxville Sheet Metal Works, INC | Knoxville | TN | Primary Metal Manufacturing331315 | 20-99 | ● ACTIVE |
| KAKobelco Aluminum Products & Extrusions INC | Bowling Green | KY | Primary Metal Manufacturing331313 | 100-499 | ● ACTIVE |
Korff Holdings, LLC | Salem | OH | Primary Metal Manufacturing331511 | 20-99 | ● ACTIVE |
Kovatch Castings, INC | Uniontown | OH | Primary Metal Manufacturing331512 | 100-499 | ● ACTIVE |
| KIKreisler Industrial Corporation | Elmwood Park | NJ | Primary Metal Manufacturing331111 | 100-499 | ● ACTIVE |
Kuprion, INC. | San Jose | CA | Primary Metal Manufacturing331420 | 20-99 | ● ACTIVE |
Kutztown Foundry & Machine LLC | Kutztown | PA | Primary Metal Manufacturing331513 | 20-99 | ● ACTIVE |
Kvf-quad, Corporation | East Moline | IL | Primary Metal Manufacturing331221 | 20-99 | ● ACTIVE |
Kyocera Senco Industrial Tools, INC | Cincinnati | OH | Primary Metal Manufacturing331222 | 100-499 | ● ACTIVE |
| LMLangeloth Metallurgical Company LLC | Langeloth | PA | Primary Metal Manufacturing331110 | 20-99 | ● ACTIVE |
Latrobe Specialty Metals Co, LLC | Latrobe | PA | Chemical Manufacturing325311 | — | ● ACTIVE |
| LILeachgarner, INC. | Attleboro | MA | Primary Metal Manufacturing331491 | 100-499 | ● ACTIVE |
| LEL E Jones CO | Menominee | MI | Primary Metal Manufacturing331110 | 100-499 | ● ACTIVE |
Leroy Tool & Die INC | Leroy | MI | Primary Metal Manufacturing331521 | 20-99 | ● ACTIVE |
Le Sueur, Incorporated | Le Sueur | MN | Primary Metal Manufacturing331523 | 100-499 | ● ACTIVE |
| LCLibertas Copper | Leetsdale | PA | Primary Metal Manufacturing331410 | 100-499 | ● ACTIVE |
Linear Motion LLC | Saginaw | MI | Primary Metal Manufacturing331111 | 100-499 | ● ACTIVE |
| LMLite Magnesium Products INC | Ravenna | OH | Primary Metal Manufacturing331491 | 20-99 | ● ACTIVE |
| LHLittlestown Hdwr & Foundry | Littlestown | PA | Primary Metal Manufacturing331524 | 20-99 | ● ACTIVE |
| LMLodge Manufacturing Company | South Pittsburg | TN | Primary Metal Manufacturing331511 | 500+ | ● ACTIVE |
| LALogan Aluminum INC | Russellville | KY | Primary Metal Manufacturing331314 | 500+ | ● ACTIVE |
Luvata Appleton LLC | Kimberly | WI | Primary Metal Manufacturing331420 | — | ● ACTIVE |
| LWLuvata Waterbury, INC. | Waterbury | CT | Primary Metal Manufacturing331420 | 100-499 | ● ACTIVE |
Madden Bolt Corporation | Houston | TX | Primary Metal Manufacturing331210 | 20-99 | ● ACTIVE |
Magellan Aerospace Glendale | Glendale | AZ | Primary Metal Manufacturing331523 | 100-499 | ● ACTIVE |
Magotteaux, INC. | Franklin | TN | Primary Metal Manufacturing331513 | 100-499 | ● ACTIVE |
| MLMagpro, LLC | Camden | TN | Primary Metal Manufacturing331410 | 20-99 | ● ACTIVE |
Malin Company | Brookpark | OH | Primary Metal Manufacturing331222 | 20-99 | ● ACTIVE |
Marblecast Products, INC. | Salt Lake City | UT | Primary Metal Manufacturing331529 | 1-19 | ● ACTIVE |
| MTMarkin Tubing | Wyoming | NY | Primary Metal Manufacturing331210 | 20-99 | ● ACTIVE |
| MUMarmon Utility LLC | Seymour | CT | Primary Metal Manufacturing331491 | 100-499 | ● ACTIVE |
| MAMastermelt America LLC | Sweetwater | TN | Primary Metal Manufacturing331410 | 20-99 | ● ACTIVE |
| MIMatalco INC | Wisconsin Rapids | WI | Primary Metal Manufacturing331314 | 20-99 | ● ACTIVE |
| MSMatalco Shelbyville LLC | Shelbyville | KY | Primary Metal Manufacturing331314 | 100-499 | ● ACTIVE |
| MBMaterion Brush INC | Elmore | OH | Primary Metal Manufacturing331410 | 500+ | ● ACTIVE |
Matthews International Corporation | Pittsburgh | PA | Primary Metal Manufacturing331523 | — | ● ACTIVE |
Maynard Steel Casting CO | Milwaukee | WI | Primary Metal Manufacturing331510 | 100-499 | ● ACTIVE |
| MDMcwane Ductile - New Jersey | Phillipsburg | NJ | Primary Metal Manufacturing331511 | 100-499 | ● ACTIVE |