| VIValmet INC | Columbus | MS | Fabricated Metal Product Manufacturing332114 | — | ◐ LIKELY ACTIVE |
| YCYellow Creek Coating Services | Iuka | MS | Chemical Manufacturing325510 | 20-99 | ◐ LIKELY ACTIVE |
| AGAzz Galvanizing Services - Moss Point | Moss Point | MS | Fabricated Metal Product Manufacturing332812 | — | ◐ LIKELY ACTIVE |
| IEItt Engineered Valves | Amory | MS | Fabricated Metal Product Manufacturing332911 | — | ◐ LIKELY ACTIVE |
| QSQuality Steel CORP. | Cleveland | MS | Fabricated Metal Product Manufacturing332313 | — | ◐ LIKELY ACTIVE |
| SMSmw Mfg INC | Oxford | MS | Fabricated Metal Product Manufacturing332912 | — | ◐ LIKELY ACTIVE |
American Tank & Vessel INC | Lucedale | MS | Fabricated Metal Product Manufacturing332313 | — | ◇ UNVERIFIED |
| CCCalvert Company Inc, the | Richland | MS | Fabricated Metal Product Manufacturing332322 | — | ◇ UNVERIFIED |
| CBCrown Beverage Packaging | Batesville | MS | Fabricated Metal Product Manufacturing332431 | — | ◇ UNVERIFIED |
| GRGreat River Industries LLC | Natchez | MS | Fabricated Metal Product Manufacturing332313 | — | ◇ UNVERIFIED |
| KMKloeckner Metals Corporation | Louisville | MS | Fabricated Metal Product Manufacturing332313 | — | ◇ UNVERIFIED |
| MOMonotech of Mississippi | Iuka | MS | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| MCMueller Copper Fittings CO INC | Fulton | MS | Fabricated Metal Product Manufacturing332913 | — | ◇ UNVERIFIED |
| PPPaslode Pontotoc | Pontotoc | MS | Fabricated Metal Product Manufacturing332618 | — | ◇ UNVERIFIED |
| RARobine and Welch Machine and Tool Company INC | Laurel | MS | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| SSSamuel Son and Company (usa) INC | Iuka | MS | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| SASouth Atlantic Galvanizing | Shannon | MS | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| TPTri-state Pole & Piling, INC. | Lucedale | MS | Fabricated Metal Product Manufacturing332114 | — | ◇ UNVERIFIED |
21 Machine and Fab LLC | Forest | MS | Fabricated Metal Product Manufacturing332322 | — | ◐ LIKELY ACTIVE |
Iron Innovations, INC. | Clinton | MS | Fabricated Metal Product Manufacturing332323 | — | ◐ LIKELY ACTIVE |
| SWSteel Works, LLC | Jackson | MS | Fabricated Metal Product Manufacturing332999 | 20-99 | ◐ LIKELY ACTIVE |
| ASAttala Steel Industries LLC | Kosciusko | MS | Primary Metal Manufacturing331111 | — | ◐ LIKELY ACTIVE |
| ESEllis Steel Company, Inc. Structural | West Point | MS | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| GAGe Aviation Ellisville | Ellisville | MS | Fabricated Metal Product Manufacturing332812 | — | ◐ LIKELY ACTIVE |
| GSGipson Steel, INC. | Meridian | MS | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| HEHunter Engineering Company, Durant | Durant | MS | Fabricated Metal Product Manufacturing332312 | — | ◐ LIKELY ACTIVE |
| HEHunter Engineering Company Raymond Plant | Raymond | MS | Fabricated Metal Product Manufacturing332999 | 500+ | ◐ LIKELY ACTIVE |
| JPJackson Plating CO | Jackson | MS | Fabricated Metal Product Manufacturing332813 | — | ◐ LIKELY ACTIVE |
| JCJANMP Contech Engineered Solutions LLC | Greenville | MS | Fabricated Metal Product Manufacturing332322 | 1-19 | ◐ LIKELY ACTIVE |
| JMJwh Machining & Fab LLC | Jackson | MS | Fabricated Metal Product Manufacturing332710 | — | ◐ LIKELY ACTIVE |
| KCKbh CORP | Clarksdale | MS | Fabricated Metal Product Manufacturing332999 | — | ◐ LIKELY ACTIVE |
| KCKdm Custom Coatings INC | Tupelo | MS | Fabricated Metal Product Manufacturing332812 | — | ◐ LIKELY ACTIVE |
| LMLaurel Machine and Foundry, Front Street | Laurel | MS | Primary Metal Manufacturing331221 | 20-99 | ◐ LIKELY ACTIVE |
| OWOlin Winchester, LLC | Oxford | MS | Fabricated Metal Product Manufacturing332992 | — | ◐ LIKELY ACTIVE |
PG Technologies - Ellisville, MS | Ellisville | MS | Fabricated Metal Product Manufacturing332811 | 100-499 | ◐ LIKELY ACTIVE |
| PSPontotoc Spring | Pontotoc | MS | Fabricated Metal Product Manufacturing332613 | 20-99 | ◐ LIKELY ACTIVE |
| RHRite Hite Product Corporation | Horn Lake | MS | Fabricated Metal Product Manufacturing332439 | 100-499 | ◐ LIKELY ACTIVE |
| RIRockett INC | Flowood | MS | Fabricated Metal Product Manufacturing332116 | — | ◐ LIKELY ACTIVE |
| SSSlay Steel INC | Meridian | MS | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| SSmith+Griffin | Byhalia | MS | Fabricated Metal Product Manufacturing332999 | 20-99 | ◐ LIKELY ACTIVE |
| SMSouthwark Metal Mississippi Division | Southaven | MS | Fabricated Metal Product Manufacturing332322 | 100-499 | ◐ LIKELY ACTIVE |
| VTVision Technologies Marine, INC. | Pascagoula | MS | Fabricated Metal Product Manufacturing332312 | — | ◐ LIKELY ACTIVE |
| 1A1108th Avcrad | Gulfport | MS | Fabricated Metal Product Manufacturing332812 | — | ◐ LIKELY ACTIVE |
| APAutomatic Plating, INC. | Taylorsville | MS | Fabricated Metal Product Manufacturing332813 | — | ◐ LIKELY ACTIVE |
| CLCroft LLC | Magnolia | MS | Primary Metal Manufacturing331312 | — | ◐ LIKELY ACTIVE |
| PEProcess Engineering Company, INC. | Jackson | MS | Fabricated Metal Product Manufacturing332813 | — | ◐ LIKELY ACTIVE |
| SSStructural Steel Services, Inc., Plant 6 | Meridian | MS | Fabricated Metal Product Manufacturing332312 | — | ◐ LIKELY ACTIVE |
| SSStructural Steel Services Inc, Plants 1 | Meridian | MS | Fabricated Metal Product Manufacturing332312 | — | ◐ LIKELY ACTIVE |
Taylor Machine Works Inc, Plant Number 3 | Louisville | MS | Fabricated Metal Product Manufacturing332313 | — | ◐ LIKELY ACTIVE |
| AIAbb Installation Products, INC. | Southaven | MS | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |