| CACustom Actuation & Machine Service, LLC | Baton Rouge | 1–19 | ◇ UNVERIFIED |
| DCDavid Christman- Gunmaker, INC. | Delhi | 1–19 | ◇ UNVERIFIED |
| DSDeep South Machinist, LLC | Lafayette | — | ◇ UNVERIFIED |
| DCDelta Consolidated, LLC | Harvey | 1–19 | ◇ UNVERIFIED |
| DWDixie Weld-fab, INC. | Belcher | 20–99 | ◇ UNVERIFIED |
| DMDowty Machine Works | Baton Rouge | 1–19 | ◇ UNVERIFIED |
| DADura-lite Aluminum Products INC. | Lafayette | 1–19 | ◇ UNVERIFIED |
| EAEast Aluminum Products, INC. | Lake Charles | 1–19 | ◇ UNVERIFIED |
| EME&e Machine Shop & Services LLC | Houma | 20–99 | ◇ UNVERIFIED |
| EIEro, INC. | Baton Rouge | 1–19 | ◇ UNVERIFIED |
| FIFabex, INC. | Zachary | 20–99 | ◇ UNVERIFIED |
| FFFab-worx Fabricators, LLC | Port Allen | 20–99 | ◇ UNVERIFIED |
| FMFisher Manufacturing Services, LLC | Hammond | 1–19 | ◇ UNVERIFIED |
| FGFlambeaux Gas & Electric Lights, LLC | Westwego | 1–19 | ◇ UNVERIFIED |
| FCFriedrichs Custom Manufacturing, INC | Jefferson | 1–19 | ◇ UNVERIFIED |
| GHGeo Heat Exchangers LLC | Saint Gabriel | 100–499 | ◇ UNVERIFIED |
| GIGuidry Iron Works INC | Lafayette | 1–19 | ◇ UNVERIFIED |
| GSGunderson Systems International, INC. | Shreveport | 1–19 | ◇ UNVERIFIED |
| HIHaynie Industries, LLC | Heflin | 1–19 | ◇ UNVERIFIED |
| HCHess Corporation at Msi US Mid-south Machine | Youngsville | 1–19 | ◇ UNVERIFIED |
| IMInternational Manufacturers Representatives | Baton Rouge | 1–19 | ◇ UNVERIFIED |
| IDIron Design LLC | Baton Rouge | 1–19 | ◇ UNVERIFIED |
| JMJerry's Machine & Fabrication INC. | Lake Charles | 20–99 | ◇ UNVERIFIED |
| LFLa Fabrication INC | Houma | 1–19 | ◇ UNVERIFIED |
| LCLane Custom Metal, INC. | Lafayette | 1–19 | ◇ UNVERIFIED |
| LFLg Fabricators | Lockport | 1–19 | ◇ UNVERIFIED |
| LJLittle Joe's Welding and Sons, INC. | Bossier City | 1–19 | ◇ UNVERIFIED |
| MCMetal Coatings LLC | Abbeville | 1–19 | ◇ UNVERIFIED |
| MWMetal Works Corporation | Baton Rouge | 20–99 | ◇ UNVERIFIED |
| NFNavarre Fabrication, INC. | Lafayette | 1–19 | ◇ UNVERIFIED |
| NDNew Deal Metal Buildings, LLC | Denham Springs | 1–19 | ◇ UNVERIFIED |
| NONew Orleans Metalworks INC | Harvey | 1–19 | ◇ UNVERIFIED |
| OSOld South Fabricators L.l.c. | Lecompte | 1–19 | ◇ UNVERIFIED |
| PVPedal Valves, INC. | Luling | 20–99 | ◇ UNVERIFIED |
| PPermadrain | Baton Rouge | 1–19 | ◇ UNVERIFIED |
| PSPortable Shelters INC. | Oak Grove | 1–19 | ◇ UNVERIFIED |
| PMPrime Machine Works LLC | Thibodaux | 1–19 | ◇ UNVERIFIED |
 Quality Fab & Mechanical, LLC. | Saint Rose | — | ◇ UNVERIFIED |
| QSQuality Sheet Metal INC | Monroe | 1–19 | ◇ UNVERIFIED |
| RCRiver City Metal Fabrication, LLC | Baton Rouge | 1–19 | ◇ UNVERIFIED |
| RTRoberts TCB Inc | Lake Charles | 1–19 | ◇ UNVERIFIED |
| SFScientific Fabrication Service Inc. | Plaquemine | 1–19 | ◇ UNVERIFIED |
| SMSheet Metal Specialties LLC | Monroe | 1–19 | ◇ UNVERIFIED |
| SSSmith & Sons, LLC | Sulphur | 1–19 | ◇ UNVERIFIED |
| SCSouthern Carbide, INC. | Shreveport | 1–19 | ◇ UNVERIFIED |
| SVSt.gabriel Valve Service | St. Gabriel | 1–19 | ◇ UNVERIFIED |
| SIStreamline Industries, LLC | Jeanerette | 20–99 | ◇ UNVERIFIED |
| SSSulphur Sheet Metal & Fabrication, INC. | Sulphur | 1–19 | ◇ UNVERIFIED |
| TITalley Iron Works, LLC | Pearl River | 1–19 | ◇ UNVERIFIED |
| TLTubespec, LLC | Belle Chasse | 1–19 | ◇ UNVERIFIED |
