| AMArdagh Metal Packaging USA CORP | Olive Branch | MS | Primary Metal Manufacturing331318 | 100-499 | ● ACTIVE |
| SCSouthern Cast Products INC | Meridian | MS | Primary Metal Manufacturing331513 | 20-99 | ● ACTIVE |
| TTTrue Temper Sports, INC. | Amory | MS | Primary Metal Manufacturing331210 | 100-499 | ● ACTIVE |
| AAAccu-fab and Construction, INC | Moss Point | MS | Primary Metal Manufacturing331111 | — | ● ACTIVE |
| CLC L Dews and Sons Foundry and Machinery Company INC | Hattiesburg | MS | Primary Metal Manufacturing331511 | 20-99 | ◐ LIKELY ACTIVE |
| MMMagnolia Metal & Plastic Products, INC | Vicksburg | MS | Plastics and Rubber Products Manufacturing326199 | 1-19 | ◐ LIKELY ACTIVE |
| ECEsco Corporation - Newton | Newton | MS | Primary Metal Manufacturing331513 | — | ◐ LIKELY ACTIVE |
| GTGolden Triangle Mill Service | Columbus | MS | Nonmetallic Mineral Product Manufacturing327992 | 100-499 | ◐ LIKELY ACTIVE |
| MCMueller Casting and Copper Tube Products | Fulton | MS | Primary Metal Manufacturing331420 | — | ◐ LIKELY ACTIVE |
| NSNucor Steel Jackson INC | Flowood | MS | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| PTPlymouth Tube Company | Eupora | MS | Primary Metal Manufacturing331210 | — | ◐ LIKELY ACTIVE |
| RNRolls-royce Naval Marine INC | Pascagoula | MS | Primary Metal Manufacturing331529 | — | ◐ LIKELY ACTIVE |
| SCSouthwire Company | Starkville | MS | Primary Metal Manufacturing331318 | — | ◐ LIKELY ACTIVE |
| WCWorthington Cylinders Mississippi LLC | New Albany | MS | Primary Metal Manufacturing331221 | — | ◐ LIKELY ACTIVE |
| AMAbb Motors and Mechanical INC | Columbus | MS | Primary Metal Manufacturing331522 | — | ◐ LIKELY ACTIVE |
| KCKawneer Company, INC | Hernando | MS | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| MPMississippi Precision Cast Parts LLC | Columbus | MS | Primary Metal Manufacturing331512 | — | ◇ UNVERIFIED |
| STSteel Technologies INC | Madison | MS | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| ADAluminum Dynamics - Columbus | Columbus | MS | Primary Metal Manufacturing331313 | 500+ | ◐ LIKELY ACTIVE |
| ASAttala Steel Industries LLC | Kosciusko | MS | Primary Metal Manufacturing331111 | — | ◐ LIKELY ACTIVE |
| CRCf Rail Services Llc, Mississippi Railcar | Meridian | MS | Primary Metal Manufacturing331111 | — | ◐ LIKELY ACTIVE |
| GMGrenada Manufacturing LLC | Grenada | MS | Primary Metal Manufacturing331221 | — | ◐ LIKELY ACTIVE |
| LMLaurel Machine and Foundry, Front Street | Laurel | MS | Primary Metal Manufacturing331221 | 20-99 | ◐ LIKELY ACTIVE |
| MSMississippi Silicon | Burnsville | MS | Primary Metal Manufacturing331314 | 100-499 | ◐ LIKELY ACTIVE |
| OHOwls Head Alloys | West Point | MS | Primary Metal Manufacturing331314 | — | ◐ LIKELY ACTIVE |
| PTPlymouth Tube Company- Eupora | Eupora | MS | Primary Metal Manufacturing331210 | 100-499 | ◐ LIKELY ACTIVE |
| TETaber Extrusions, LLC | Gulfport | MS | Primary Metal Manufacturing331314 | — | ◐ LIKELY ACTIVE |
| ATAlter Trading Corporation - Sardis | Sardis | MS | Primary Metal Manufacturing331314 | — | ◐ LIKELY ACTIVE |
| CLCroft LLC | Magnolia | MS | Primary Metal Manufacturing331312 | — | ◐ LIKELY ACTIVE |
| CFCrystal Finishing Systems INC | Senatobia | MS | Primary Metal Manufacturing331316 | — | ◐ LIKELY ACTIVE |
| MPMetaline Products INC | Crystal Springs | MS | Primary Metal Manufacturing331315 | — | ◐ LIKELY ACTIVE |
| AEAllied Electroplating INC | Eupora | MS | Primary Metal Manufacturing331522 | — | ◇ UNVERIFIED |
| AIAnduril Industries INC | Mchenry | MS | Primary Metal Manufacturing331314 | — | ◇ UNVERIFIED |
| BEBaldor Electric Company | Columbus | MS | Primary Metal Manufacturing331521 | — | ◇ UNVERIFIED |
| BIBekaert INC | Clarksdale | MS | Primary Metal Manufacturing331222 | — | ◇ UNVERIFIED |
| BTBrimmer Turan Foundry and Machine Shop | Gulfport | MS | Primary Metal Manufacturing331524 | — | ◇ UNVERIFIED |
| CMCbr Machinists INC | Laurel | MS | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| GWGallman Wire Technologies | Gallman | MS | Primary Metal Manufacturing331319 | — | ◇ UNVERIFIED |
| HIHowse Implement Company, Inc, Howse Implement Company Waste Tire Processing Faci | Laurel | MS | Primary Metal Manufacturing331111 | — | ◇ UNVERIFIED |
| KSKeystone Seneca Wire Cloth Company | Brookhaven | MS | Primary Metal Manufacturing331319 | — | ◇ UNVERIFIED |
| LMLaurel Machine & Foundry Hawkes Plant | Laurel | MS | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| MCMetalloy Corp, The, Mississippi Division | Shannon | MS | Primary Metal Manufacturing331524 | — | ◇ UNVERIFIED |
| MCMueller Casting CO INC | Fulton | MS | Primary Metal Manufacturing331525 | — | ◇ UNVERIFIED |
| PHParker Hannifin Corporation, Booneville Plant | Booneville | MS | Primary Metal Manufacturing331312 | — | ◇ UNVERIFIED |
Penco Products INC | Vicksburg | MS | Primary Metal Manufacturing331492 | — | ◇ UNVERIFIED |
Skyline Steel Llc-iuka | Iuka | MS | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| SMSullivan Metals INC | Holly Springs | MS | Primary Metal Manufacturing331524 | — | ◇ UNVERIFIED |
| SSSxp Schulz Xtruded Products LLC | Hernando | MS | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| AWArc-up Welding, INC | Vicksburg | MS | Primary Metal Manufacturing331210 | — | ◐ LIKELY ACTIVE |
| JTJindal Tubular USA llc | BayStlouis | MS | Primary Metal Manufacturing331210 | 100-499 | ◐ LIKELY ACTIVE |