| SBSpike Brewing, LLC | Milwaukee | WI | — | ◇ UNVERIFIED |
| SMSpill-stop Mfg. LLC | Melrose Park | IL | — | ◇ UNVERIFIED |
| SPS & P Metallurgy Services | Warwick | RI | — | ◇ UNVERIFIED |
| SSSportsman Steel Safe Company | Long Beach | CA | — | ◇ UNVERIFIED |
| STSportsman Trailers | Santa Fe | TX | — | ◇ UNVERIFIED |
| SLSportswire LLC | Langley | OK | — | ◇ UNVERIFIED |
 Sportworks Global LLC | Mukilteo | WA | — | ◇ UNVERIFIED |
| SSSpraying System CO | Wheaton | IL | — | ◇ UNVERIFIED |
| SKSpray King Mfg INC | Fresno | CA | — | ◇ UNVERIFIED |
| SWSpringfield Welding & Mfg CO INC | Waunakee | WI | — | ◇ UNVERIFIED |
| SMSpring Metal Recycling,llc | Atlanta | GA | — | ◇ UNVERIFIED |
 Springs Fabrication - Waynoka | Colorado Springs | CO | — | ◇ UNVERIFIED |
| SISpur Industries INC | Spokane | WA | — | ◇ UNVERIFIED |
| SLSpx Lindberg a Division of Spx Corporation | Watertown | WI | — | ◇ UNVERIFIED |
| SQS. Q. Fabrication, INC. | Andalusia | AL | — | ◇ UNVERIFIED |
| SLSquare10Source, LLC | Plant City | FL | — | ◇ UNVERIFIED |
| SMSrp Manufacturing | Pleasant Grove | UT | — | ◇ UNVERIFIED |
| SASsc & Aluminum Fabrications INC | West Palm Beach | FL | — | ◇ UNVERIFIED |
| SCS.S. Connections, LLC | Denver | CO | — | ◇ UNVERIFIED |
| SFS&s Fabrication LLC | Cleveland | TX | — | ◇ UNVERIFIED |
| SFS&S Fire Pits | College Park | GA | — | ◇ UNVERIFIED |
| SCSsi Corporation | Julesburg | CO | — | ◇ UNVERIFIED |
| SCSst Custom Fabricators | Okeechobee | FL | — | ◇ UNVERIFIED |
| SPStack-on Products | Wauconda | IL | — | ◇ UNVERIFIED |
| SHStage House | Las Vegas | NV | — | ◇ UNVERIFIED |
| SAStainless and Repair, INC. | Marshfield | WI | — | ◇ UNVERIFIED |
| SCStainless Concepts, LLC | Zeeland | MI | — | ◇ UNVERIFIED |
| SSStainless Steel Custom Fabricators | Houston | TX | — | ◇ UNVERIFIED |
| SSStainless Steel Fabricators INC. | La Mirada | CA | — | ◇ UNVERIFIED |
| SSStainless Steel Technologies and Pressure Vessels | Saint Paul | MN | — | ◇ UNVERIFIED |
| SUStainless Unlimited, INC. | Omro | WI | — | ◇ UNVERIFIED |
| SMStambaugh Metal Inc/hanover | Hanover | PA | — | ◇ UNVERIFIED |
| SHStandard Heat Treating | Cicero | IL | — | ◇ UNVERIFIED |
| SIStandard Iron, INC. | Chattanooga | TN | — | ◇ UNVERIFIED |
| SIStandard Iron, INC. | Grand Island | NE | — | ◇ UNVERIFIED |
| SIStandard Iron & Wire Works | Thomson | GA | — | ◇ UNVERIFIED |
| SSStandard Sheet Metal CORP. | Norfolk | VA | — | ◇ UNVERIFIED |
| SLStanford Linear Accelerator Center | Stanford | CA | — | ◇ UNVERIFIED |
| SLStar Lake Fabrication | Litchfield | MN | — | ◇ UNVERIFIED |
| SMStar Machine | Tulsa | OK | — | ◇ UNVERIFIED |
| SPStar Precision Manufacturing, Inc. | Frederick | CO | — | ◇ UNVERIFIED |
| SIState Industries INC | Franklin | TN | — | ◇ UNVERIFIED |
| SWState Welding & Fabricating, Inc. | Clinton | CT | — | ◇ UNVERIFIED |
| SASteel Acrylic Bathware | Dallas | TX | — | ◇ UNVERIFIED |
| SISteelarc INC. | Griffin | GA | — | ◇ UNVERIFIED |
| SISteelarc, INC | Griffin | GA | — | ◇ UNVERIFIED |
| SCSteel Co, INC | Bloomington | CA | — | ◇ UNVERIFIED |
| SDSteel Dreams INC | Eugene | OR | — | ◇ UNVERIFIED |
| SLSteel Leaf Designs, LLC | Vancouver | WA | — | ◇ UNVERIFIED |
| SMSteel Management Services, INC. | College Park | GA | — | ◇ UNVERIFIED |
| SRSteel Ridge Enterprises, Inc. | Ridgely | TN | — | ◇ UNVERIFIED |
| SSSteel Services, INC. | Macon | GA | — | ◇ UNVERIFIED |
| SSSteel Summit Tennessee | La Vergne | TN | — | ◇ UNVERIFIED |
| SCSteffes Corporation-grand for | Grand Forks | ND | — | ◇ UNVERIFIED |
| SIStellar Industries LLC | Bremen | IN | — | ◇ UNVERIFIED |
| SMStellar Machine, INC | Concord | CA | — | ◇ UNVERIFIED |
| STStellar Tent, Inc. | Humble | TX | — | ◇ UNVERIFIED |
| SPStephens Pipe and Steel, LLC | Montoursville | PA | — | ◇ UNVERIFIED |
| SPSterling Plumbing Group INC | Los Angeles | CA | — | ◇ UNVERIFIED |
| STSterling Trophy INC | Anoka | MN | — | ◇ UNVERIFIED |
| SLSternschnuppe, LLC | Las Vegas | NV | — | ◇ UNVERIFIED |
| STStewart Tool Company, INC. | Rancho Cordova | CA | — | ◇ UNVERIFIED |
| SFSt Fabrication | Orting | WA | — | ◇ UNVERIFIED |
| STS T G Machine CORP | Santa Clara | CA | — | ◇ UNVERIFIED |
| SEStiles Enterprises, INC. | Rockaway | NJ | — | ◇ UNVERIFIED |
| SMStirrup Metal Products CORP | Newark | NJ | — | ◇ UNVERIFIED |
| SMSTMW Manufacturing LLC | Taylor | TX | — | ◇ UNVERIFIED |
| SEStone Enterprises | Omaha | NE | — | ◇ UNVERIFIED |
| SVStone Valley Welding - Mcalevys Fort Mfg | Huntingdon | PA | — | ◇ UNVERIFIED |
| SPStorage Products Group | Aurora | CO | — | ◇ UNVERIFIED |
| SMStorch Magnetics | Livonia | MI | — | ◇ UNVERIFIED |
| SIStoutco, INC. | Bristol | IN | — | ◇ UNVERIFIED |
| SPSt. Paul's Manor | San Diego | CA | — | ◇ UNVERIFIED |
| SPStraightline Performance Products INC | Forest Lake | MN | — | ◇ UNVERIFIED |
| SIStraitline, INC. | Okarche | OK | — | ◇ UNVERIFIED |
| SFStreamline Fabrication, LLC | Covington | GA | — | ◇ UNVERIFIED |
 Streamline Tool & Engineering LLC | Grain Valley | MO | — | ◇ UNVERIFIED |
| SFStreet Factory Media | Bloomington | MN | — | ◇ UNVERIFIED |
| SRSt Regis Manufacturing LLC Trading /rs Owens | Itasca | IL | — | ◇ UNVERIFIED |
| SAStrickland Agriculture Services Incorporated | Spring Hope | NC | — | ◇ UNVERIFIED |
| SOStripmasters of Illinois | Granite City | IL | — | ◇ UNVERIFIED |
| SBStrong Built, INC | Waterproof | LA | — | ◇ UNVERIFIED |
| SMSTS Machine Incorporated | Tomball | TX | — | ◇ UNVERIFIED |
| SDStull Design and Manufactruring LLC | Burlington | KY | — | ◇ UNVERIFIED |
| SLSturdy Lantern Manufacturing | Franklin | MA | — | ◇ UNVERIFIED |
| SBSudbury Brass Goods Company Incorporated | Malden | MA | — | ◇ UNVERIFIED |
| SBSudbury Brass Goods Company Incorporated | Chelsea | MA | — | ◇ UNVERIFIED |
| SCSufrank Corporation | Lawton | OK | — | ◇ UNVERIFIED |
| SISulvan Industrial Piping | Perth Amboy | NJ | — | ◇ UNVERIFIED |
| SASun Architectural Products, LLC | Cumming | GA | — | ◇ UNVERIFIED |
| SHSuncoast Heat Treat INC | Palm Beach Gardens | FL | — | ◇ UNVERIFIED |
| SMSuncoast Metal LLC | Sarasota | FL | — | ◇ UNVERIFIED |
| SASundrella Aluminum Products CO. | Phoenix | AZ | — | ◇ UNVERIFIED |
| SHSun Heat Treating, Inc./sun Materials Testing | Tulsa | OK | — | ◇ UNVERIFIED |
| SMSunlast Metal, INC. | Palm City | FL | — | ◇ UNVERIFIED |
| SWSunshine Welding, Scallop | Port Canaveral | FL | — | ◇ UNVERIFIED |
| SVSun Valley Bronze, Inc. | Bellevue | ID | — | ◇ UNVERIFIED |
| SASuperheat Advancing Heat Treatment | Sulphur | LA | — | ◇ UNVERIFIED |
 Superheat Fgh Services INC | Cannon Falls | MN | — | ◇ UNVERIFIED |
| SHSuper Heat Treating INC | Syracuse | NY | — | ◇ UNVERIFIED |
