| SMSrp Manufacturing | Pleasant Grove | UT | — | ◇ UNVERIFIED |
| SASsc & Aluminum Fabrications INC | West Palm Beach | FL | — | ◇ UNVERIFIED |
| SCS.S. Connections, LLC | Denver | CO | — | ◇ UNVERIFIED |
| SSS - S Engineering INC Dba Specialty Tool - Engr | Eden Prairie | MN | — | ◇ UNVERIFIED |
| SFS&s Fabrication LLC | Cleveland | TX | — | ◇ UNVERIFIED |
| SFS&S Fire Pits | College Park | GA | — | ◇ UNVERIFIED |
| SCSsi Corporation | Julesburg | CO | — | ◇ UNVERIFIED |
| SSS & S Machine and Design | Akron | OH | — | ◇ UNVERIFIED |
| SSS & S Machining & Fabrication, INC | Groesbeck | TX | — | ◇ UNVERIFIED |
| SISsp International, INC. | Milwaukee | WI | — | ◇ UNVERIFIED |
| SCSst Custom Fabricators | Okeechobee | FL | — | ◇ UNVERIFIED |
| SFSst Foundry | Loveland | OH | — | ◇ UNVERIFIED |
| SSS & S Tool Inc | Conneaut | OH | — | ◇ UNVERIFIED |
| SPStack-on Products | Wauconda | IL | — | ◇ UNVERIFIED |
| SSStadco Standard Tool & Die CO | Los Angeles | CA | — | ◇ UNVERIFIED |
| SMStadler Mold & Die CO. INC. | Denver | CO | — | ◇ UNVERIFIED |
| SDStaerk Design LLC | Jacksonville | FL | — | ◇ UNVERIFIED |
| SHStage House | Las Vegas | NV | — | ◇ UNVERIFIED |
| SAStainless Aesthetics Inc. | Paradise | CA | — | ◇ UNVERIFIED |
| SAStainless and Repair, INC. | Marshfield | WI | — | ◇ UNVERIFIED |
| SCStainless Concepts, LLC | Zeeland | MI | — | ◇ UNVERIFIED |
| SMStainless Manufacturing and Design, INC. | Brandon | WI | — | ◇ 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 |
| SIStandard Iron, INC. | Chattanooga | TN | — | ◇ UNVERIFIED |
| SIStandard Iron, INC. | Grand Island | NE | — | ◇ UNVERIFIED |
| SIStandard Iron & Wire Works | Thomson | GA | — | ◇ UNVERIFIED |
 Standard Machine CO | Minneapolis | MN | — | ◇ UNVERIFIED |
| Standard Machine & Tool, INC. | Bristol | CT | — | ◇ UNVERIFIED |
| Standard Machine Works INC | Houston | TX | — | ◇ UNVERIFIED |
| SPStandard Precision Grinding CO. | Lansing | IL | — | ◇ UNVERIFIED |
| SSStandard Sheet Metal CORP. | Norfolk | VA | — | ◇ UNVERIFIED |
| STStandard Technologies & Machine CO | Wilmington | DE | — | ◇ UNVERIFIED |
| SIStandex International Spincraft Division | Billerica | MA | — | ◇ UNVERIFIED |
| SLStanford Linear Accelerator Center | Stanford | CA | — | ◇ UNVERIFIED |
 Stang Industries INC | Corona | CA | — | ◇ UNVERIFIED |
| SIStanton Industrial LLC | Saint George | UT | — | ◇ UNVERIFIED |
| SRStanton Racing, INC. | Nicholasville | KY | — | ◇ UNVERIFIED |
| SMStark's Metal Works Inc. | Menomonie | WI | — | ◇ UNVERIFIED |
| SLStar Lake Fabrication | Litchfield | MN | — | ◇ UNVERIFIED |
| SMStar Machine | Tulsa | OK | — | ◇ UNVERIFIED |
| SMStar Machine Co. Inc. | Nashua | NH | — | ◇ UNVERIFIED |
| SMStar Manufacturing INC | Blaine | MN | — | ◇ UNVERIFIED |
| SPStar Precision Manufacturing, Inc. | Frederick | CO | — | ◇ UNVERIFIED |
| SLStarting Line Products, INC. | Idaho Falls | ID | — | ◇ UNVERIFIED |
| SIState Industries INC | Franklin | TN | — | ◇ UNVERIFIED |
| SLState Line Foundries INC | Roscoe | IL | — | ◇ UNVERIFIED |
