| BGBollinger Gulfport Shipbuilding, LLC | Gulfport | MS | Transportation Equipment Manufacturing336611 | — | ◐ LIKELY ACTIVE |
| CACite Armored Batesville | Batesville | MS | Transportation Equipment Manufacturing336211 | 20-99 | ◐ LIKELY ACTIVE |
| FAFaurecia Automotive, Seating | Madison | MS | Transportation Equipment Manufacturing336360 | 100-499 | ◐ LIKELY ACTIVE |
PG Technologies - Ellisville, MS | Ellisville | MS | Fabricated Metal Product Manufacturing332811 | 100-499 | ◐ LIKELY ACTIVE |
| RSRelativity Space INC | John C Stennis Space Center | MS | Transportation Equipment Manufacturing336414 | — | ◐ LIKELY ACTIVE |
| RRRolls Royce North America, Rolls Royce Center of Excellence | Stennis Space Center | MS | Transportation Equipment Manufacturing336412 | — | ◐ LIKELY ACTIVE |
| SMScranton Manufacturing Company INC Dba Mclaughlin Family Companies Inc, Newway | Booneville | MS | Transportation Equipment Manufacturing336211 | — | ◐ LIKELY ACTIVE |
| SSmith+Griffin | Byhalia | MS | Fabricated Metal Product Manufacturing332999 | 20-99 | ◐ LIKELY ACTIVE |
| SRSoutheastern Railway Services | Magnolia | MS | Transportation Equipment Manufacturing336510 | — | ◐ LIKELY ACTIVE |
| SASystems Automotive Interiors LLC | Mantachie | MS | Transportation Equipment Manufacturing336360 | 100-499 | ◐ LIKELY ACTIVE |
| USUnipres Southeast | Forest | MS | Transportation Equipment Manufacturing336370 | 100-499 | ◐ LIKELY ACTIVE |
| WSWade Services INC | Laurel | MS | Transportation Equipment Manufacturing336212 | — | ◐ LIKELY ACTIVE |
| CAC and W Custom Trailers | Golden | MS | Machinery Manufacturing333924 | — | ◐ LIKELY ACTIVE |
| OPOmega Protein Shipyard | Moss Point | MS | Transportation Equipment Manufacturing336611 | — | ◐ LIKELY ACTIVE |
| VHVt Halter Marine INC | Pascagoula | MS | Transportation Equipment Manufacturing336611 | — | ◐ LIKELY ACTIVE |
| AKAl Ko Kober Corporation | Baldwyn | MS | Transportation Equipment Manufacturing336340 | — | ◇ UNVERIFIED |
| ASAptiv Services US LLC | Brookhaven | MS | Transportation Equipment Manufacturing336320 | — | ◇ UNVERIFIED |
| CHChapel Hill Port Bienville LLC | Bay Saint Louis | MS | Transportation Equipment Manufacturing336611 | — | ◇ UNVERIFIED |
| DPDelphi Packard Electric Systems, Clinton Plant | Clinton | MS | Transportation Equipment Manufacturing336320 | — | ◇ UNVERIFIED |
| DCDixie Craft Trailers | Eupora | MS | Transportation Equipment Manufacturing336212 | — | ◇ UNVERIFIED |
| EFEast Fabricators INC | Vicksburg | MS | Transportation Equipment Manufacturing336611 | — | ◇ UNVERIFIED |
| FPFeuer Powertrain of North America, INC. | Robinsonville | MS | Transportation Equipment Manufacturing336350 | — | ◇ UNVERIFIED |
| GBGe Batesville Composite Operations | Batesville | MS | Transportation Equipment Manufacturing336412 | — | ◇ UNVERIFIED |
| GAGreentech Automotive INC | Tunica | MS | Transportation Equipment Manufacturing336112 | — | ◇ UNVERIFIED |
| HPHolley Performance Products Aberdeen | Aberdeen | MS | Transportation Equipment Manufacturing336310 | — | ◇ UNVERIFIED |
| ISIngalls Shipbuilding, Gulfport Operations | Gulfport | MS | Transportation Equipment Manufacturing336611 | — | ◇ UNVERIFIED |
| JEJohnson Electric Automotive Motors | Columbus | MS | Transportation Equipment Manufacturing336000 | — | ◇ UNVERIFIED |
| LMLockheed Martin Information Systems and Global Services | Stennis Space Center | MS | Transportation Equipment Manufacturing336414 | — | ◇ UNVERIFIED |
| MPMississippi Prison Industries Corporation, Pearl | Pearl | MS | Transportation Equipment Manufacturing336322 | — | ◇ UNVERIFIED |
| MMM M Flechas Shipyard Company | Pascagoula | MS | Transportation Equipment Manufacturing336611 | — | ◇ UNVERIFIED |
| MJModine Jackson INC | Jackson | MS | Transportation Equipment Manufacturing336390 | — | ◇ UNVERIFIED |
| NSNaval Station Pascagoula | Pascagoula | MS | Transportation Equipment Manufacturing336611 | — | ◇ UNVERIFIED |
| NWNew Way Trucks - the Arsenal | Booneville | MS | Transportation Equipment Manufacturing336211 | — | ◇ UNVERIFIED |
| NGNorthrop Grumman Corporation | Moss Point | MS | Transportation Equipment Manufacturing336411 | — | ◇ UNVERIFIED |
| PHParker Hannifin Corporation, Chelsea Products | Olive Branch | MS | Transportation Equipment Manufacturing336350 | — | ◇ UNVERIFIED |
| PHParker Hannifin Corporation, Racor Division | Holly Springs | MS | Machinery Manufacturing333996 | — | ◇ UNVERIFIED |
| PTPines Trailer Division of Great Dane LP | Greenville | MS | Transportation Equipment Manufacturing336212 | — | ◇ UNVERIFIED |
| RRRemy Reman,l.l.c.(formerly A&b Grp.dalex | Bay Springs | MS | Transportation Equipment Manufacturing336000 | — | ◇ UNVERIFIED |
| RRRemy Reman Llc, Raleigh Plant | Raleigh | MS | Transportation Equipment Manufacturing336320 | — | ◇ UNVERIFIED |
| SSSudden Services Inc, Component Rebuild Center | Louisville | MS | Transportation Equipment Manufacturing336350 | — | ◇ UNVERIFIED |
| STSureride Trailers INC | Maben | MS | Transportation Equipment Manufacturing336214 | — | ◇ UNVERIFIED |
| TBTallahatchie Boat Company LLC | Charleston | MS | Transportation Equipment Manufacturing336612 | — | ◇ UNVERIFIED |
| TATci Automotive LLC | Ashland | MS | Transportation Equipment Manufacturing336390 | — | ◇ UNVERIFIED |
| TBToyota Boshoku Mississippi Lcc | Mantachie | MS | Transportation Equipment Manufacturing336211 | — | ◇ UNVERIFIED |
| TCTriple C Trailers Dba Sureride Trailers | Maben | MS | Transportation Equipment Manufacturing336999 | — | ◇ UNVERIFIED |
| TATriton Aluminum Boats | Aberdeen | MS | Transportation Equipment Manufacturing336612 | — | ◇ UNVERIFIED |
| VHVt Halter Marine, Hmp Operations | Moss Point | MS | Transportation Equipment Manufacturing336611 | — | ◇ UNVERIFIED |
| VHVt Halter Marine, Mpm Operations | Escatawpa | MS | Transportation Equipment Manufacturing336611 | — | ◇ UNVERIFIED |
| WIWorthington Industries LLC | New Albany | MS | Transportation Equipment Manufacturing336311 | — | ◇ UNVERIFIED |
| ARAerojet Rocketdyne MS Hancock Stennis Space Center ARSPPS | Stennis Space Center | MS | Transportation Equipment Manufacturing336415 | 100-499 | ◐ LIKELY ACTIVE |