| SSSouthern Steel Comapny Limited Liability Company | Charlotte | NC | — | ◇ UNVERIFIED |
| SSSouthern Structural Steel, INC. | Chesapeake | VA | — | ◇ UNVERIFIED |
| SSSouthern Structural Steel Incorporated | Smithfield | VA | — | ◇ UNVERIFIED |
| SSSouthern Structural Steel of Fl, INC | Saint Petersburg | FL | — | ◇ UNVERIFIED |
| STSouthern Thermal Solutions, INC. | Sanford | NC | — | ◇ UNVERIFIED |
| STSouthern Tube Form | Clinton | TN | — | ◇ UNVERIFIED |
| SVSouthern Vac, LLC | Grand Prairie | TX | — | ◇ UNVERIFIED |
| SFSouth Florida Aluminum INC. | Lake Worth | FL | — | ◇ UNVERIFIED |
| SCSouth-land Carbon Products, INC. | Birmingham | AL | — | ◇ UNVERIFIED |
| SFSouthland Fabricators, LLC | Walker | LA | — | ◇ UNVERIFIED |
| SMSouthland Manufacturing INC | Douglasville | GA | — | ◇ UNVERIFIED |
| SPSouthland Pipe CORP. | Rialto | CA | — | ◇ UNVERIFIED |
| SPSouthland Pipe Corporation | Hesperia | CA | — | ◇ UNVERIFIED |
| SLSouthline - Lpgs Tanforan LLC | South San Francisco | CA | — | ◇ UNVERIFIED |
| SPSouth Plains Steel, INC. | Lubbock | TX | — | ◇ UNVERIFIED |
| SSSouth Shore Iron Works | Chicago | IL | — | ◇ UNVERIFIED |
| SSSouth Sligo Compressor Station | Sligo | LA | — | ◇ UNVERIFIED |
| STSouth Texas Sheet Metal LLC | Houston | TX | — | ◇ UNVERIFIED |
| STSouth Texas Steel Service Company LLC | Victoria | TX | — | ◇ UNVERIFIED |
| SVSouth Valley Mfg | Springfield | MO | — | ◇ UNVERIFIED |
| SMSouthwark Metal | Southaven | MS | — | ◇ UNVERIFIED |
| SMSouthwark Metal Manufacturing CO. | Fremont | NE | — | ◇ UNVERIFIED |
| SMSouthwark Metal Manufacturing Company | Powdersville | SC | — | ◇ UNVERIFIED |
| SESouthwest Engineering Company | Oklahoma City | OK | — | ◇ UNVERIFIED |
| SHSouthwestern Hollow Metal | Raton | NM | — | ◇ UNVERIFIED |
| SFSouthwest Fabricators | Hugo | OK | — | ◇ UNVERIFIED |
| SSSouthwest Steel Fabrication LLC | Kansas City | MO | — | ◇ UNVERIFIED |
| SSSouthwest Steel, Llc, a Nevada Limited Liability Company | El Mirage | AZ | — | ◇ UNVERIFIED |
| SCSpaid Corporation, INC. | Pittsburgh | PA | — | ◇ UNVERIFIED |
| SWSpanier Welding & Metal Fabrication INC | Paynesville | MN | — | ◇ UNVERIFIED |
| SISpan-o-matic INC | Brea | CA | — | ◇ UNVERIFIED |
| SSSpare Skid Plate | Aurora | CO | — | ◇ UNVERIFIED |
| SMSparhawk Metals, INC. | Lockwood | NV | — | ◇ UNVERIFIED |
| SESparkman Enterprises LLC | Tucson | AZ | — | ◇ UNVERIFIED |
| SSSpartan Steel LLC | Pocatello | ID | — | ◇ UNVERIFIED |
| SMSpartech Marine Industries Florida | Rockledge | FL | — | ◇ UNVERIFIED |
| S5Spec 5 Steel INC | San Jose | CA | — | ◇ UNVERIFIED |
| SBSpec Built Systems INC | Chula Vista | CA | — | ◇ UNVERIFIED |
| SISpecht Industries,inc | Santa Clarita | CA | — | ◇ UNVERIFIED |
| SFSpecial Fab & Machine, INC. | Lexington | NC | — | ◇ UNVERIFIED |
| SFSpecial Fleet Service | Harrisonburg | VA | — | ◇ UNVERIFIED |
| SBSpeciality Bar Products Company | Blairsville | PA | — | ◇ UNVERIFIED |
| SMSpeciality Manufacturing | Nazareth | PA | — | ◇ UNVERIFIED |
| SFSpecialized Fabrication & Machine INC | Eugene | OR | — | ◇ UNVERIFIED |
| STSpecialized Turning, INC. | Peabody | MA | — | ◇ UNVERIFIED |
| SWSpecialized Welders | Torrance | CA | — | ◇ UNVERIFIED |
| SPSpecial Products Energy | Canton | MA | — | ◇ UNVERIFIED |
| SASpecialty Applications | Ponchatoula | LA | — | ◇ UNVERIFIED |
| SESpecialty Engineering Tool & Die, LLC | Huntington | IN | — | ◇ UNVERIFIED |
| SFSpecialty Fabrication, INC. | Wichita | KS | — | ◇ UNVERIFIED |
| SFSpecialty Fabrication & Powder Coatingllc | Oil City | PA | — | ◇ UNVERIFIED |
| SFSpecialty Fabricators INC. | York | PA | — | ◇ UNVERIFIED |
| SMSpecialty Machine and CNC Inc. | Battle Ground | IN | — | ◇ UNVERIFIED |
| SMSpecialty Maint & Construction | Lakeland | FL | — | ◇ UNVERIFIED |
| SMSpecialty Manufacturing | Amesbury | MA | — | ◇ UNVERIFIED |
| SMSpecialty Metal Fabricators LLC | Portland | OR | — | ◇ UNVERIFIED |
| SMSpecialty Metals Fabrication INC | Santee | CA | — | ◇ UNVERIFIED |
| SPSpecialty Performance LLC | Dahlonega | GA | — | ◇ UNVERIFIED |
| SSSpecialty Steel Fabricators | Olympia | WA | — | ◇ UNVERIFIED |
| SSSpecialty Steel Services Facility | Philadelphia | PA | — | ◇ UNVERIFIED |
| SSSpecialty Support Systems, INC. | Levittown | PA | — | ◇ UNVERIFIED |
| SSSpecific Systems, LLC | Tulsa | OK | — | ◇ UNVERIFIED |
| SISpecsys INC | Prentice | WI | — | ◇ UNVERIFIED |
| SRSpectrum Resources LLC | Suwanee | GA | — | ◇ UNVERIFIED |
| STSpede Tool Mfg CO -yucca Rd | Adelanto | CA | — | ◇ UNVERIFIED |
| SISpengler Industries | Salt Lake City | UT | — | ◇ UNVERIFIED |
| SCSpf Corporation of America | Houston | TX | — | ◇ UNVERIFIED |
| SSSpherion Staffing Services | Little Rock | AR | — | ◇ UNVERIFIED |
| SCSpider Company INC | Machesney Park | IL | — | ◇ UNVERIFIED |
| SSSpider Staging CORP | Seattle | WA | — | ◇ UNVERIFIED |
| SISpig Industries | Bristol | VA | — | ◇ UNVERIFIED |
| SPSpika Properties, LLC | Lewistown | MT | — | ◇ UNVERIFIED |
| SBSpike Brewing, LLC | Milwaukee | WI | — | ◇ UNVERIFIED |
| SMSpill-stop Mfg. LLC | Melrose Park | IL | — | ◇ UNVERIFIED |
| SISpinnaker Industries International, INC. | Louisville | KY | — | ◇ UNVERIFIED |
| SMSpiral Manufacturing CO INC | Minneapolis | MN | — | ◇ UNVERIFIED |
| SFSpirit Fabs, INC. | Green Bay | WI | — | ◇ UNVERIFIED |
| SHSpl Holdings, LLC | Delran | NJ | — | ◇ UNVERIFIED |
| SOSpm Oil & Gas - Fort Lupton | Fort Lupton | CO | — | ◇ UNVERIFIED |
| SSSportsman Steel Safe Company | Long Beach | CA | — | ◇ UNVERIFIED |
| SSSportsman Steel Safe Fabricating CO | Long Beach | CA | — | ◇ UNVERIFIED |
| STSportsman Trailers | Santa Fe | TX | — | ◇ UNVERIFIED |
| SLSportswire LLC | Langley | OK | — | ◇ UNVERIFIED |
 Sportworks Global LLC | Mukilteo | WA | — | ◇ UNVERIFIED |
| SDSpot Design LLC | Ann Arbor | MI | — | ◇ UNVERIFIED |
| SSSpraying System CO | Wheaton | IL | — | ◇ UNVERIFIED |
| SKSpray King Mfg INC | Fresno | CA | — | ◇ UNVERIFIED |
| SESpring Engineers of Dallas Dba Sei Metalforms | Dallas | TX | — | ◇ UNVERIFIED |
| SWSpringfield Welding & Mfg CO INC | Waunakee | WI | — | ◇ UNVERIFIED |
| SMSpring Metal Recycling,llc | Atlanta | GA | — | ◇ UNVERIFIED |
 Springs Fabrication - Waynoka | Colorado Springs | CO | — | ◇ UNVERIFIED |
| SCSps Companies INC Dba Pipe Fabricators | Osseo | MN | — | ◇ UNVERIFIED |
| SDSpx Dock Prods | Carrollton | TX | — | ◇ UNVERIFIED |
| SQS. Q. Fabrication, INC. | Andalusia | AL | — | ◇ UNVERIFIED |
| SLSquare10Source, LLC | Plant City | FL | — | ◇ UNVERIFIED |
| SLSrf LLC | Fredericksburg | VA | — | ◇ UNVERIFIED |
| SISr Iron INC | Healdsburg | CA | — | ◇ UNVERIFIED |
| SMSrp Manufacturing | Pleasant Grove | UT | — | ◇ UNVERIFIED |
| SFSrs Fabrication, INC. | North Las Vegas | NV | — | ◇ UNVERIFIED |
| SASsc & Aluminum Fabrications INC | West Palm Beach | FL | — | ◇ UNVERIFIED |
