| RMRow Manufacturing | Athens | — | ◇ UNVERIFIED |
| RSR. S. Sullivan Investments, INC. | Foley | — | ◇ UNVERIFIED |
| SSSabel Steel Service, INC. | Theodore | — | ◇ UNVERIFIED |
| SBS & B Machine Company, INC | Mobile | — | ◇ UNVERIFIED |
| SSScf Specialty Fabricators, INC. | Calera | — | ◇ UNVERIFIED |
| SIScmg, INC. | Florence | — | ◇ UNVERIFIED |
| SAScroggins a 1 Repair | Troy | — | ◇ UNVERIFIED |
| SCSelf Contained Cleaning Systems, INC | New Brockton | — | ◇ UNVERIFIED |
| SFSelman Fabricating Company, INC. | Bessemer | — | ◇ UNVERIFIED |
| SCSequa Corporation | Hueytown | — | ◇ UNVERIFIED |
| SCShape CORP. - Endeavor Way | Tanner | — | ◇ UNVERIFIED |
| SCShape CORP - Tanner | Tanner | — | ◇ UNVERIFIED |
| SIShiloh Industry, INC. | Anniston | — | ◇ UNVERIFIED |
| SSSkf Solutions Factory | Moody | — | ◇ UNVERIFIED |
| SKS & K Machineworks Company, INC. | Theodore | — | ◇ UNVERIFIED |
| SMSmith Machine, LLC. | Cottondale | — | ◇ UNVERIFIED |
| SMSmith's Machine, LLC | Cottondale | — | ◇ UNVERIFIED |
| SSSnodgrass Sheet Metal | Lanett | — | ◇ UNVERIFIED |
| SISos/aaa Iron Works INC | Mobile | — | ◇ UNVERIFIED |
| SCSouth Central Steel Inc. | Harpersville | — | ◇ UNVERIFIED |
| SCSoutheast Culvert, INC. | Cleveland | — | ◇ UNVERIFIED |
| SSSoutheast Stamping INC. | Montgomery | — | ◇ UNVERIFIED |
| SCSouth-land Carbon Products, INC. | Birmingham | — | ◇ UNVERIFIED |
| SQS. Q. Fabrication, INC. | Andalusia | — | ◇ UNVERIFIED |
| SCSteel City Metal INC | Sterrett | — | ◇ UNVERIFIED |
 Steelfab Inc., Alabama | Roanoke | — | ◇ UNVERIFIED |
| SMSuperior Machine Works, LLC | Mobile | — | ◇ UNVERIFIED |
| SMSuperior Mason Products LLC | Birmingham | — | ◇ UNVERIFIED |
| SMSuperior Mason Products LLC | Homewood | — | ◇ UNVERIFIED |
| SSSupervoid Systems, LLC | Prattville | — | ◇ UNVERIFIED |
| SRSupreme Roofing Products, INC. | Tuscaloosa | — | ◇ UNVERIFIED |
| TTanner | Tanner | — | ◇ UNVERIFIED |
| TCT & C Supply, INC. | Hueytown | — | ◇ UNVERIFIED |
| TTTeel Tooling and Manufacturing, INC. | Wetumpka | — | ◇ UNVERIFIED |
| TFThe Ford Meter Box Company, INC. (dowzer) | Pell City | — | ◇ UNVERIFIED |
| TMThe Machine Shop, INC. | Greenville | — | ◇ UNVERIFIED |
| TSThermagreen Steel Structures, LLC | Homewood | — | ◇ UNVERIFIED |
| TLThermamasters, LLC. | Wetumpka | — | ◇ UNVERIFIED |
| TEThompson Engineering | Flomaton | — | ◇ UNVERIFIED |
| TIThompson Industrial Shop | Gadsden | — | ◇ UNVERIFIED |
| TBThree Brothers Welding and Machine Shop | Montgomery | — | ◇ UNVERIFIED |
| TSTotal Support Tooling, INC. | Florence | — | ◇ UNVERIFIED |
| TPTransportation Products, INC. | Evergreen | — | ◇ UNVERIFIED |
| TSTri Star Manufacturing, LLC | Rogersville | — | ◇ UNVERIFIED |
| TMTri-state Machine Works, INC. | Saraland | — | ◇ UNVERIFIED |
| TATrucor Ammo, LLC | Dothan | — | ◇ UNVERIFIED |
| TMTruemark Metals, LLC | Alabaster | — | ◇ UNVERIFIED |
| TFTubular Fabricating Company INC | Birmingham | — | ◇ UNVERIFIED |
| TMTuscaloosa Machine & Welding, INC. | Tuscaloosa | — | ◇ UNVERIFIED |
| TITvm, INC. Dba Valley Metal Fabricators | Muscle Shoals | — | ◇ UNVERIFIED |
