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