| SFSoutheast Finishing Highway 65-closed | Conway | SC | — | ◇ UNVERIFIED |
| SASouthern Aluminum Finishing Company | Atlanta | GA | — | ◇ UNVERIFIED |
| SCSouthern California Plating CO INC | San Diego | CA | — | ◇ UNVERIFIED |
| SDSouthern Die Casting CORP | Miami | FL | — | ◇ UNVERIFIED |
| SESouthern Erectors INC | Pensacola | FL | — | ◇ UNVERIFIED |
| SMSouthern Machinery CORP | Lakeland | FL | — | ◇ UNVERIFIED |
| SMSouthern Metal Processing Company | Oxford | AL | — | ◇ UNVERIFIED |
| SMSouthern Metals Company of Mississippi INC | Laurel | MS | — | ◇ UNVERIFIED |
| SMSouthern Miscellaneous Columbia LLC | West Columbia | SC | — | ◇ UNVERIFIED |
| SPSouthern Painting & Blasting LLC | Casselberry | FL | — | ◇ UNVERIFIED |
| SPSouthern Plating INC | Johnston City | IL | — | ◇ UNVERIFIED |
| SPSouthern Post Texas | San Marcos | TX | — | ◇ UNVERIFIED |
| SRSouthern Rotary Drill | Nauvoo | AL | — | ◇ UNVERIFIED |
| SSSouthern Stamping | Irvington | AL | — | ◇ UNVERIFIED |
| SSSouthern Steel Comapny Limited Liability Company | Charlotte | NC | — | ◇ UNVERIFIED |
| SSSouthern Structural Steel Incorporated | Smithfield | VA | — | ◇ UNVERIFIED |
| SSSouthern Structural Steel of Fl, INC | Saint Petersburg | FL | — | ◇ UNVERIFIED |
| SFSouth Frontier Facility | Lexington | NE | — | ◇ UNVERIFIED |
| SHSouth Holland Metal Finishing | South Holland | IL | — | ◇ UNVERIFIED |
| SJSouth Jersey Container CORP | Winslow | NJ | — | ◇ UNVERIFIED |
| SPSouthland Pipe CORP. | Rialto | CA | — | ◇ UNVERIFIED |
| SMSouthline Metal Products CO | Houston | TX | — | ◇ UNVERIFIED |
| SBSouthport Boats, LLC | Leland | NC | — | ◇ UNVERIFIED |
| SSSouth Shore Finishers INC. (1318008119) | Cleveland | OH | — | ◇ UNVERIFIED |
| SSSouth Sligo Compressor Station | Sligo | LA | — | ◇ UNVERIFIED |
| SVSouth Valley Mfg | Springfield | MO | — | ◇ UNVERIFIED |
| SHSouthwestern Hollow Metal | Raton | NM | — | ◇ UNVERIFIED |
| SMSouthwest Metal Finishing - Calhoun Rd Plt | New Berlin | WI | — | ◇ UNVERIFIED |
| SPSouthwest Plating INC / Duncan Plating Facility | Duncan | OK | — | ◇ UNVERIFIED |
| SSSouthwest Stair INC | El Mirage | AZ | — | ◇ UNVERIFIED |
| SLSpace Lok Incorporated | Gardena | CA | — | ◇ UNVERIFIED |
| SWSpaeth Welding INC | New Baden | IL | — | ◇ UNVERIFIED |
| SISparkman Industries Catalyst Division | Victoria | TX | — | ◇ UNVERIFIED |
| SISparkman Industries Plant 2 | Victoria | TX | — | ◇ UNVERIFIED |
| SSSpartanburg Stainless Products | Spartanburg | SC | — | ◇ UNVERIFIED |
| SISpartan Industrial INC | Detroit | MI | — | ◇ UNVERIFIED |
| SMSpartech Marine Industries Florida | Rockledge | FL | — | ◇ UNVERIFIED |
| SFSpecial Fab & Machine, INC. | Lexington | NC | — | ◇ UNVERIFIED |
| SSSpeciality Stairs and Miscellaneous Fabrication INC | Pearl | MS | — | ◇ UNVERIFIED |
| SPSpecialized Processing CO INC | El Cajon | CA | — | ◇ UNVERIFIED |
| SPSpecial Products Company - Golden Plant | Golden | CO | — | ◇ UNVERIFIED |
| SPSpecial Products Energy | Canton | MA | — | ◇ UNVERIFIED |
| SMSpecialties Mfg Co-brecon Ind Pk | Talladega | AL | — | ◇ UNVERIFIED |
| STSpecial T Mfg | Meadowview | VA | — | ◇ UNVERIFIED |
| STSpecial T Mfg. Corporation | Damascus | VA | — | ◇ UNVERIFIED |
| SCSpecialty Coating Systems INC | Johnstown | PA | — | ◇ UNVERIFIED |
| SESpecialty Engine Components LLC | Taylor | MI | — | ◇ UNVERIFIED |
| SGSpecialty Groups INC Shop | Lost Creek | WV | — | ◇ UNVERIFIED |
| SHSpecialty Heat Treating INC | Grand Rapids | MI | — | ◇ UNVERIFIED |
| SMSpecialty Manufacturing | Amesbury | MA | — | ◇ UNVERIFIED |
| SMSpecialty Manufacturing Company INC. | Bath | SD | — | ◇ UNVERIFIED |
| SPSpecialty Plating CO | Mount Vernon | WA | — | ◇ UNVERIFIED |
| SSSpecialty Screw CORP | Rockford | IL | — | ◇ UNVERIFIED |
| SSSpecialty Steel Services Facility | Philadelphia | PA | — | ◇ UNVERIFIED |
| STSpecialty Tank & Equip CO | Jacksonville | FL | — | ◇ UNVERIFIED |
| STSpecialty Technology | Mcpherson | KS | — | ◇ UNVERIFIED |
| SPSpecified Plating CO | Chicago | IL | — | ◇ UNVERIFIED |
| SISpectra, INC. | Mishawaka | IN | — | ◇ UNVERIFIED |
| SISpectronics INC | Evansville | IN | — | ◇ UNVERIFIED |
| SASpectrum Aluminum Finishing | Muskego | WI | — | ◇ UNVERIFIED |
| SASpectrum Aquatics | Missoula | MT | — | ◇ UNVERIFIED |
| SDSpectrum Decorative Finishes, INC. | Grand Rapids | MI | — | ◇ UNVERIFIED |
| SSSpeed & Sport Chrome Plating | Houston | TX | — | ◇ UNVERIFIED |
| SESpence Electro Plating CO | Burbank | CA | — | ◇ UNVERIFIED |
| SMSpill-stop Mfg. LLC | Melrose Park | IL | — | ◇ UNVERIFIED |
| SMSpokane Metal Finishing | Spokane | WA | — | ◇ UNVERIFIED |
| SISportpaint INC. Plant 3 | Louisville | KY | — | ◇ UNVERIFIED |
| SPSportpaint Plant 2 | Louisville | KY | — | ◇ UNVERIFIED |
| SSSportsman Steel Safes | Long Beach | CA | — | ◇ UNVERIFIED |
| SFSpra Fin Inc/north Wales | North Wales | PA | — | ◇ UNVERIFIED |
| SASpray Art Finishers | Escondido | CA | — | ◇ UNVERIFIED |
| SSSpraying System CO | Wheaton | IL | — | ◇ UNVERIFIED |
| SSSpraying Systems CO | Merrimack | NH | — | ◇ UNVERIFIED |
| SISpraytek INC. Madison Heights | Madison Heights | MI | — | ◇ UNVERIFIED |
| SMSpringfield Metal Finishing INC | Springfield | OH | — | ◇ UNVERIFIED |
| SMSprinkman Manufacturing | Elroy | WI | — | ◇ UNVERIFIED |
| SESpudnik Equipment CO (plant 3) | Blackfoot | ID | — | ◇ UNVERIFIED |
| SISpur Industries INC | Spokane | WA | — | ◇ UNVERIFIED |
| SFSpx Flow US LLC | Delavan | WI | — | ◇ UNVERIFIED |
| SFSpx Flow US LLC - Millstead Way | Rochester | NY | — | ◇ UNVERIFIED |
| SLSpx Lindberg a Division of Spx Corporation | Watertown | WI | — | ◇ UNVERIFIED |
| SWSsab Wear Solutions LLC | Birmingham | AL | — | ◇ UNVERIFIED |
| SSS & S Carbide Tool INC | Spring Valley | CA | — | ◇ UNVERIFIED |
| SCS&s Coating Specialties INC | Lafayette | LA | — | ◇ UNVERIFIED |
| SSS & S Machine & Manufacturing LLC | Pleasantville | IA | — | ◇ UNVERIFIED |
| SSS & S Metal Fabricators | Chamois | MO | — | ◇ UNVERIFIED |
| SSS & S Plating CO | Houston | TX | — | ◇ UNVERIFIED |
| SCSst Custom Fabricators | Okeechobee | FL | — | ◇ UNVERIFIED |
| SSS & S Welding & Fabrication LLC | Lexington | SC | — | ◇ UNVERIFIED |
| SWSs White Technologies INC | Piscataway | NJ | — | ◇ UNVERIFIED |
| SPStabile Plating | Covina | CA | — | ◇ UNVERIFIED |
| SNStabio North America | Trevor | WI | — | ◇ UNVERIFIED |
| SPStack-on Products | Wauconda | IL | — | ◇ UNVERIFIED |
| SAStadco Automatics (0829060007) | Fairborn | OH | — | ◇ UNVERIFIED |
| SMStamplus Mfg INC | Roselle | NJ | — | ◇ UNVERIFIED |
| SIStamptech INC Dba Aoc Metal Works | Lynchburg | VA | — | ◇ UNVERIFIED |
| SGStandard Golf CO | Cedar Falls | IA | — | ◇ UNVERIFIED |
| SHStandard Heat Treating | Cicero | IL | — | ◇ UNVERIFIED |
 Standard Machine Works INC | Houston | TX | — | ◇ UNVERIFIED |
| SNStandard Nut & Bolt Company | Cumberland | RI | — | ◇ UNVERIFIED |
