| TRTropical Roofing Products, LLC | Port Arthur | TX | Petroleum and Coal Products Manufacturing324122 | 1-19 | ◇ UNVERIFIED |
| GOGt Omniport Marine Dock | Port Arthur | TX | Transportation Equipment Manufacturing336611 | — | ◇ UNVERIFIED |
| GCGulf Copper and Manufacturing Corporation | Port Arthur | TX | Transportation Equipment Manufacturing336611 | — | ◇ UNVERIFIED |
| IIntegrity | Port Arthur | TX | Transportation Equipment Manufacturing336611 | — | ◇ UNVERIFIED |
| PAPort Arthur Plant | Port Arthur | TX | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| PPPraxair Port Arthur Hydrogen Facility | Port Arthur | TX | Chemical Manufacturing325120 | — | ◇ UNVERIFIED |
| VCVessel Cleaning | Port Arthur | TX | Transportation Equipment Manufacturing336611 | — | ◇ UNVERIFIED |
| GCGulf Copper | Port Arthur | TX | Transportation Equipment Manufacturing336611 | 100-499 | ◇ UNVERIFIED |
| BMBuilding Materials Manufacturing Bmmc | Port Arthur | TX | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| CCCortland Container CORP | Port Arthur | TX | Fabricated Metal Product Manufacturing332439 | — | ◇ UNVERIFIED |
| COCrt Oil | Port Arthur | TX | Chemical Manufacturing325188 | — | ◇ UNVERIFIED |
| DYDock Yard | Port Arthur | TX | Transportation Equipment Manufacturing336611 | — | ◇ UNVERIFIED |
| GPGerman Pellets of Texas | Port Arthur | TX | Wood Product Manufacturing321999 | — | ◇ UNVERIFIED |
| GPGerman Pellets Texas, LLC | Port Arthur | TX | Wood Product Manufacturing321999 | — | ◇ UNVERIFIED |
| GOGt Omniport | Port Arthur | TX | Transportation Equipment Manufacturing336611 | — | ◇ UNVERIFIED |
| GCGulf Copper | Port Arthur | TX | Transportation Equipment Manufacturing336611 | — | ◇ UNVERIFIED |
| PAPort Arthur Facility | Port Arthur | TX | Chemical Manufacturing325110 | — | ◇ UNVERIFIED |
| PAPort Arthur Plant | Port Arthur | TX | Chemical Manufacturing325120 | — | ◇ UNVERIFIED |
| PAPort Arthur Plant | Port Arthur | TX | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| PAPort Arthur Plant | Port Arthur | TX | Chemical Manufacturing325110 | — | ◇ UNVERIFIED |
| PRPremcor Refining Group INC. Port Arthur Refy. | Port Arthur | TX | Petroleum and Coal Products Manufacturing324110 | — | ◇ UNVERIFIED |
| SPSabine Pass Cbp | Port Arthur | TX | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| SPSabine Pass Washout Facility | Port Arthur | TX | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| SISetpoint Integrated Solutions INC | Port Arthur | TX | Fabricated Metal Product Manufacturing332911 | — | ◇ UNVERIFIED |
| SCSulzer Chemtech USA | Port Arthur | TX | Chemical Manufacturing325110 | — | ◇ UNVERIFIED |
| TMTaylor Metal Works & Pipe Co., INC. | Port Arthur | TX | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| TPTotal Petrochemicals USA INC. - Port Arthur Refinery | Port Arthur | TX | Petroleum and Coal Products Manufacturing324110 | — | ◇ UNVERIFIED |
| TPTxi Port Arthur Ready Mix | Port Arthur | TX | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
