| ARAerojet Rocketdyne MS Hancock Stennis Space Center ARSPPS | Stennis Space Center | MS | Transportation Equipment Manufacturing336415 | 100-499 | ◐ LIKELY ACTIVE |
| AHAmerican HOWA Mississippi | Canton | MS | Transportation Equipment Manufacturing336360 | 1-19 | ◐ LIKELY ACTIVE |
| ACAptiv Connections US, LLC | Brookhaven | MS | Transportation Equipment Manufacturing336320 | 100-499 | ◐ LIKELY ACTIVE |
| AAutokiniton | Meridian | MS | Transportation Equipment Manufacturing336370 | 100-499 | ◐ LIKELY ACTIVE |
| BBBoat Building Facilities | Gulfport | MS | Transportation Equipment Manufacturing336612 | 100-499 | ◐ LIKELY ACTIVE |
| CECampbell Enterprise CORP | Biloxi | MS | Transportation Equipment Manufacturing336611 | — | ◐ LIKELY ACTIVE |
| CMCenter - Moeller Products LLC | Greenville | MS | Transportation Equipment Manufacturing336350 | — | ◐ LIKELY ACTIVE |
| CMCoastal Machinery Group LLC | Vancleave | MS | Transportation Equipment Manufacturing336611 | — | ◐ LIKELY ACTIVE |
| CMCummings Marine Services Incorporated | Nesbit | MS | Transportation Equipment Manufacturing336611 | — | ◐ LIKELY ACTIVE |
| EGEdelbrock Group | Olive Branch | MS | Transportation Equipment Manufacturing336310 | 100-499 | ◐ LIKELY ACTIVE |
| GIGrammer Incorporated | Shannon | MS | Transportation Equipment Manufacturing336360 | 100-499 | ◐ LIKELY ACTIVE |
| GCGulf Coast Combat System Alignment LLC | Lucedale | MS | Transportation Equipment Manufacturing336611 | — | ◐ LIKELY ACTIVE |
| GSGulf Ship, L.l.c | Gulfport | MS | Transportation Equipment Manufacturing336611 | — | ◐ LIKELY ACTIVE |
| GSGulf States Marine, LLC | Hattiesburg | MS | Transportation Equipment Manufacturing336611 | — | ◐ LIKELY ACTIVE |
| HAhago Automotive | Iuka | MS | Transportation Equipment Manufacturing336370 | 100-499 | ◐ LIKELY ACTIVE |
| HCHavards Construction LLC | Lucedale | MS | Transportation Equipment Manufacturing336611 | — | ◐ LIKELY ACTIVE |
| HCHol-Mac Corporation Plant 4 | Bay Springs | MS | Transportation Equipment Manufacturing336390 | 20-99 | ◐ LIKELY ACTIVE |
| HSH & S Utility Maintenance Services LLC | Gulfport | MS | Transportation Equipment Manufacturing336214 | — | ◐ LIKELY ACTIVE |
| HSHutchens Stacy D | Gautier | MS | Transportation Equipment Manufacturing336612 | — | ◐ LIKELY ACTIVE |
| LMLockheed Martin Corporation Stennis (1563) | Stennis Space Center | MS | Transportation Equipment Manufacturing336414 | 100-499 | ◐ LIKELY ACTIVE |
| LMLockheed Martin Corporation US MS Meridian (1507) | Meridian | MS | Transportation Equipment Manufacturing336413 | 100-499 | ◐ LIKELY ACTIVE |
| LWLynn's Welding Shop, LLC | Vicksburg | MS | Transportation Equipment Manufacturing336612 | — | ◐ LIKELY ACTIVE |
| MNMarelli NA | Canton | MS | Transportation Equipment Manufacturing336320 | 100-499 | ◐ LIKELY ACTIVE |
| NWNew Way Trucks - Industrial | Booneville | MS | Transportation Equipment Manufacturing336211 | 20-99 | ◐ LIKELY ACTIVE |
| NNgas-r486 | Moss Point | MS | Transportation Equipment Manufacturing336411 | 100-499 | ◐ LIKELY ACTIVE |
| PCPass Christian Yacht Works, LLC | Pass Christian | MS | Transportation Equipment Manufacturing336611 | — | ◐ LIKELY ACTIVE |
| RSRelativity Space- Stennis Space Center | Stennis Space Center | MS | Transportation Equipment Manufacturing336414 | 100-499 | ◐ LIKELY ACTIVE |
| RCRolls-royce Corporation | Meridian | MS | Transportation Equipment Manufacturing336412 | — | ◐ LIKELY ACTIVE |
| SIS&A Industries New Albany Mississippi | New Albany | MS | Transportation Equipment Manufacturing336390 | 100-499 | ◐ LIKELY ACTIVE |
| SMScranton Mfg. Co. INC. | Booneville | MS | Transportation Equipment Manufacturing336211 | 100-499 | ◐ LIKELY ACTIVE |
| SPSerco - Pascagoula, MS | Pascagoula | MS | Transportation Equipment Manufacturing336611 | 20-99 | ◐ LIKELY ACTIVE |
| SPSerco - Pascagoula Wisconsin Loop, MS | Pascagoula | MS | Transportation Equipment Manufacturing336611 | 20-99 | ◐ LIKELY ACTIVE |
| SSSignet Shipbuilding & Repair | Pascagoula | MS | Transportation Equipment Manufacturing336611 | 20-99 | ◐ LIKELY ACTIVE |
| STSolero Technologies | Water Valley | MS | Transportation Equipment Manufacturing336350 | 100-499 | ◐ LIKELY ACTIVE |
| SStennis | Stennis Space Center | MS | Transportation Equipment Manufacturing336412 | 20-99 | ◐ LIKELY ACTIVE |
| TLTopship, L.l.c | Gulfport | MS | Transportation Equipment Manufacturing336611 | — | ◐ LIKELY ACTIVE |
| TATower Automotive Operations USA 1, LLC | Meridian | MS | Transportation Equipment Manufacturing336370 | 100-499 | ◐ LIKELY ACTIVE |
| TMTrident Maritime Systems, LLC | Pascagoula | MS | Transportation Equipment Manufacturing336611 | 20-99 | ◐ LIKELY ACTIVE |
| WMWepfer Marine of Greenville, LLC | Greenville | MS | Transportation Equipment Manufacturing336611 | 20-99 | ◐ LIKELY ACTIVE |
| ATAdvanced Technology | Water Valley | MS | Transportation Equipment Manufacturing336311 | — | ◇ UNVERIFIED |
| AKA & K Supplyu & Marine Work | Gulfport | MS | Transportation Equipment Manufacturing336611 | — | ◇ UNVERIFIED |
| AAvcrad | Gulfport | MS | Transportation Equipment Manufacturing336399 | — | ◇ UNVERIFIED |
| BTBarrentine Trailer Manufacturing CO. | Greenwood | MS | Transportation Equipment Manufacturing336214 | — | ◇ UNVERIFIED |
| BMBay Marine Boatworks INC | Biloxi | MS | Transportation Equipment Manufacturing336612 | — | ◇ UNVERIFIED |
| BTBayou Trailers & Manufacturing, LLC | Waveland | MS | Transportation Equipment Manufacturing336212 | — | ◇ UNVERIFIED |
| BGBollinger Gulport Shipbuilding, LLC | Gulfport | MS | Transportation Equipment Manufacturing336611 | — | ◇ UNVERIFIED |
| CNCalsonic North America INC | Vicksburg | MS | Transportation Equipment Manufacturing336390 | — | ◇ UNVERIFIED |
| CEChahta Enterprisies | Carthage | MS | Transportation Equipment Manufacturing336320 | — | ◇ UNVERIFIED |
Deep South Fire Trucks Inc | Collins | MS | Transportation Equipment Manufacturing336120 | — | ◇ UNVERIFIED |
| DADouglas and Lomason Company, Atlas Body Division | Amory | MS | Transportation Equipment Manufacturing336390 | — | ◇ UNVERIFIED |