| RTRanco Transport Maintenance | Sulphur | — | ◇ UNVERIFIED |
| SGSafway Group Holdings LLC | Sorrento | — | ◇ UNVERIFIED |
| SSeatech | Belle Chasse | — | ◇ UNVERIFIED |
| SISetpoint Integrated Solutions INC | Monroe | — | ◇ UNVERIFIED |
| SISeville Industries | Abbeville | — | ◇ UNVERIFIED |
| SPShaw Pipe a Div of Shaw Resources | New Iberia | — | ◇ UNVERIFIED |
| SPShaw Process Fabricators | West Monroe | — | ◇ UNVERIFIED |
| SSShaw Sss Fabricators | Addis | — | ◇ UNVERIFIED |
| SSShaw Sunland Fabricators INC - Sunland East | Walker | — | ◇ UNVERIFIED |
| SESiemens Energy, INC | Geismar | — | ◇ UNVERIFIED |
| SPSimmons Plating & Grinding CO INC | Harahan | — | ◇ UNVERIFIED |
| SMSonat Minerals 18 #1 Facility | De Ridder | — | ◇ UNVERIFIED |
| SCSons Coating LLC | Morgan City | — | ◇ UNVERIFIED |
| SSSouth Sligo Compressor Station | Sligo | — | ◇ UNVERIFIED |
| SCS&s Coating Specialties INC | Lafayette | — | ◇ UNVERIFIED |
| STS Taylor Heirs 14 #3 Tank Battery - Haynesville Field | Haynesville | — | ◇ UNVERIFIED |
| STStork Technical Services USA | Lafayette | — | ◇ UNVERIFIED |
| SCStupp Coatings LLC | Baton Rouge | — | ◇ UNVERIFIED |
| SDSuperior Derrick Services LLC | New Iberia | — | ◇ UNVERIFIED |
| SSSynergy Sales Supplies & Rentals LLC | Sulphur | — | ◇ UNVERIFIED |
| TGTrans Gulf Industrial INC | Harahan | — | ◇ UNVERIFIED |
| UCUmc - Coquina Spearman | Rodessa | — | ◇ UNVERIFIED |
| VWValve & Wellhead Specialists | Scott | — | ◇ UNVERIFIED |
| VEVernon E Faulconer INC - Ambrose #1 | Ruston | — | ◇ UNVERIFIED |
| WFWest Facility - South Bearhead Creek Field | Fields | — | ◇ UNVERIFIED |
| WLWilliam Leckelt Tank Battery | Evangeline | — | ◇ UNVERIFIED |
| APAlloy Piping Products - 642 | Shreveport | 20–99 | ◐ LIKELY ACTIVE |
| AIAmerican Industrial Plant Services , Inc. | st amant | 20–99 | ◐ LIKELY ACTIVE |
Automated Production, LLC | Broussard | 20–99 | ◐ LIKELY ACTIVE |
| BRBaton Rouge | Baton Rouge | 20–99 | ◐ LIKELY ACTIVE |
| BRBaton Rouge LA | Baton Rouge | 1–19 | ◐ LIKELY ACTIVE |
| BMBLUvera Monroe LA BLV0003 | Monroe | 20–99 | ◐ LIKELY ACTIVE |
| BEBO-MAC - Eastern Operations | Louisiana | 20–99 | ◐ LIKELY ACTIVE |
| BCBossier City | Bossier City | 20–99 | ◐ LIKELY ACTIVE |
| BSBray Sales Gulf States | Gonzales | 1–19 | ◐ LIKELY ACTIVE |
| CVCameron Valves | Ville Platte | 100–499 | ◐ LIKELY ACTIVE |
| CICembell Industries, Inc. (Chalmette) | Chalmette | 20–99 | ◐ LIKELY ACTIVE |
| CRCMC Rebar Baton Rouge | Baton Rouge | 20–99 | ◐ LIKELY ACTIVE |
| DSDIS-TRAN Steel - Eunice | Eunice | 20–99 | ◐ LIKELY ACTIVE |
| DSDIS-TRAN Steel - MG | Convent | 1–19 | ◐ LIKELY ACTIVE |
| DSDIS-TRAN Steel - Training Facility | Alexandria | 1–19 | ◐ LIKELY ACTIVE |
| EMEbi Machining LLC | Ponchatoula | 20–99 | ◐ LIKELY ACTIVE |
| EPEpic Piping - Lake Providence | Lake Providence | 20–99 | ◐ LIKELY ACTIVE |
| EFEXCEL Fabrication | Gonzales | 20–99 | ◐ LIKELY ACTIVE |
| FFlowcor | Baton Rouge | 1–19 | ◐ LIKELY ACTIVE |
| GWGeneral Work Products Opelousas | Opelousas | 1–19 | ◐ LIKELY ACTIVE |
| GMGolden Meadow LA | Golden Meadow | 1–19 | ◐ LIKELY ACTIVE |
| GSGordon Sales, Inc | Bossier City | 100–499 | ◐ LIKELY ACTIVE |
Greenberry Industrial - Gulf Coast | Sulphur | 500+ | ◐ LIKELY ACTIVE |
| GIGulf Island - Fabrication Yard | Houma | 100–499 | ◐ LIKELY ACTIVE |