| SCSpring Creek Golf & Country Club | Ripon | CA | — | ◇ UNVERIFIED |
| SMSpringdale Machine & Gear, Inc. | Holyoke | MA | — | ◇ UNVERIFIED |
| SSSps Spindle Parts and Service LLC | Goffstown | NH | — | ◇ UNVERIFIED |
| SFSpx Flow US LLC - Millstead Way | Rochester | NY | — | ◇ UNVERIFIED |
| SOSquare One Engineering LLC | Tallmadge | OH | — | ◇ UNVERIFIED |
| SRS R Machining-Properties, LLC | Norco | CA | — | ◇ UNVERIFIED |
| SFSrs Fabrication, INC. | North Las Vegas | NV | — | ◇ UNVERIFIED |
| SSS - S Engineering INC Dba Specialty Tool - Engr | Eden Prairie | MN | — | ◇ UNVERIFIED |
| SSS & S Machine and Design | Akron | OH | — | ◇ UNVERIFIED |
| SSS & S Machining & Fabrication, INC | Groesbeck | TX | — | ◇ UNVERIFIED |
| SISsp International, INC. | Milwaukee | WI | — | ◇ UNVERIFIED |
| SSS & S Tool Inc | Conneaut | OH | — | ◇ UNVERIFIED |
| SSStadco Standard Tool & Die CO | Los Angeles | CA | — | ◇ UNVERIFIED |
| SDStaerk Design LLC | Jacksonville | FL | — | ◇ UNVERIFIED |
| SLStage Left Fabrication, LLC | Emerson | GA | — | ◇ UNVERIFIED |
| SCStaging Concepts INC | Brooklyn Park | MN | — | ◇ UNVERIFIED |
| SAStainless Aesthetics Inc. | Paradise | CA | — | ◇ UNVERIFIED |
| SMStainless Manufacturing and Design, INC. | Brandon | WI | — | ◇ UNVERIFIED |
| SFStamped Fittings, INC. | Elmira Heights | NY | — | ◇ UNVERIFIED |
| SIStamptech INC | Chester | VA | — | ◇ UNVERIFIED |
| SIStamptech INC | Lynchburg | VA | — | ◇ UNVERIFIED |
| SIStamptech, INC. | Chester | VA | — | ◇ UNVERIFIED |
| SAStandard Armament INC | Glendale | CA | — | ◇ UNVERIFIED |
| SEStandard Elements, LLC | Carbondale | CO | — | ◇ UNVERIFIED |
| SIStandard Iron - Wire Works INC | Sauk Centre | MN | — | ◇ UNVERIFIED |
| SIStandard Iron & Wire Works INC - Alex | Alexandria | MN | — | ◇ 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 |
| STStandard Technologies & Machine CO | Wilmington | DE | — | ◇ UNVERIFIED |
| SIStandex International Spincraft Division | Billerica | MA | — | ◇ UNVERIFIED |
| SIStanton Industrial LLC | Saint George | UT | — | ◇ UNVERIFIED |
| SRStanton Racing, INC. | Nicholasville | KY | — | ◇ UNVERIFIED |
| SMStanwade Metal Products | Fowler | OH | — | ◇ UNVERIFIED |
| SMStark's Metal Works Inc. | Menomonie | WI | — | ◇ UNVERIFIED |
| SMStar Machine Co. Inc. | Nashua | NH | — | ◇ UNVERIFIED |
| SMStar Manufacturing INC | Blaine | MN | — | ◇ UNVERIFIED |
| SLStarting Line Products, INC. | Idaho Falls | ID | — | ◇ UNVERIFIED |
| SCSt. Charles Stamping, INC. | Saint Charles | IL | — | ◇ UNVERIFIED |
| SCST Company, LLC | Angola | IN | — | ◇ UNVERIFIED |
| SSStead Sheet Metal INC. | Aurora | IL | — | ◇ UNVERIFIED |
| STSteam Turbine Alternative Resources | Marion | OH | — | ◇ UNVERIFIED |
| SBSteel Building Components INC. | Edison | NJ | — | ◇ UNVERIFIED |
| SISteeldeck INC. | Los Angeles | CA | — | ◇ UNVERIFIED |
| SISteeler INC | Seattle | WA | — | ◇ UNVERIFIED |
| SFSteel Fab | Abingdon | VA | — | ◇ UNVERIFIED |
| SFSteel Fab a Div. of Samuel Pressure Vessel Group (plant #2) | Abingdon | VA | — | ◇ UNVERIFIED |
| SNSteel Nutz, Inc. | Murrieta | CA | — | ◇ UNVERIFIED |
| SPSteel Plate L.l.c. | Tallmadge | OH | — | ◇ UNVERIFIED |
| SPSteel Products INC. | Los Angeles | CA | — | ◇ UNVERIFIED |
| STSteel Tech Partners LLC | Mitchell | IN | — | ◇ UNVERIFIED |
| SIStellar Industries, INC. | Hastings | NE | — | ◇ UNVERIFIED |
| SMStellar Machine Incorporated | Kingston | PA | — | ◇ UNVERIFIED |
| SMStenerson Machine INC | Red Wing | MN | — | ◇ UNVERIFIED |
| SJStephen J Vandehey | Cornelius | OR | — | ◇ UNVERIFIED |
| SMStephens Machine Incorporated | Kokomo | IN | — | ◇ UNVERIFIED |
| SMStephens Metal Products | Yakima | WA | — | ◇ UNVERIFIED |
 Sterling Precision LLC Dba Vitesse Systems Clinton Ma | Clinton | MA | — | ◇ UNVERIFIED |
| SCStevenson & CO | Baltimore | MD | — | ◇ UNVERIFIED |
| SSStevens Sheetmetal & Ironworks, INC. | Pearl | MS | — | ◇ UNVERIFIED |
| SRStiles Real Estate, LLC | Addison | IL | — | ◇ UNVERIFIED |
| SIStillion Industries, Inc. | Dexter | MI | — | ◇ UNVERIFIED |
| SIStillion Industries, Inc. | Dexter | MI | — | ◇ UNVERIFIED |
 Stingray Manufacturing, LLC | Brentwood | NH | — | ◇ UNVERIFIED |
| SJSt Joseph Machine & Speed LLC | Saint Joseph | MO | — | ◇ UNVERIFIED |
| SLSt. Louis Metallizing Company | Saint Louis | MO | — | ◇ UNVERIFIED |
| SLSt. Louis Thermal Spray and Grinding, LLC | Granite City | IL | — | ◇ UNVERIFIED |
| SMStockbridge Manufacturing, INC. | Stockbridge | WI | — | ◇ UNVERIFIED |
| SMStockbridge Manufacturing, INC. | Chilton | WI | — | ◇ UNVERIFIED |
| SRStockhouse Realty LLC | Bozrah | CT | — | ◇ UNVERIFIED |
| SWStokes Welding and Machine Shop | Brunswick | GA | — | ◇ UNVERIFIED |
| SMStoll Metalcraft INC | Valencia | CA | — | ◇ UNVERIFIED |
| SCStott Craft, INC. | Mc Intosh | FL | — | ◇ UNVERIFIED |
| SMStout Machine INC | Corvallis | OR | — | ◇ UNVERIFIED |
| SPSt. Paul Corrugating CO. | Minneapolis | MN | — | ◇ UNVERIFIED |
| SPSt Paul Machine & Design INC | Shoreview | MN | — | ◇ UNVERIFIED |
| SPSt Paul Machine - Design INC | Saint Paul | MN | — | ◇ UNVERIFIED |
| SMStp Machine, LLC | El Dorado | AR | — | ◇ UNVERIFIED |
| SMStrand Manufacturing Company INC | Hopkins | MN | — | ◇ UNVERIFIED |
| SIStreamline Industries, LLC | Jeanerette | LA | — | ◇ UNVERIFIED |
| SPStreamline Precision INC. | Fairport | NY | — | ◇ UNVERIFIED |
| SMStrecker Machine INC. | Heizer | KS | — | ◇ UNVERIFIED |
| SIStreetscape INC | Huntington Beach | CA | — | ◇ UNVERIFIED |
| SSStreimer Sheet Metal Works INC | Portland | OR | — | ◇ UNVERIFIED |
| SSStreimer Sheet Metal Works INC | Corvallis | OR | — | ◇ UNVERIFIED |
| STStripping The Gears LLC | Spanish Fork | UT | — | ◇ UNVERIFIED |
| SMStrobel Machine, INC. | Worthington | PA | — | ◇ UNVERIFIED |
| STStroud's Texas Sheetmetal, LLC | Lubbock | TX | — | ◇ UNVERIFIED |
| SCStructural Composites Ind | Pomona | CA | — | ◇ UNVERIFIED |
| SSStuart's Sheet Metal INC. | Austin | TX | — | ◇ UNVERIFIED |
| SSStuart's Sheet Metal, INC. | Leander | TX | — | ◇ UNVERIFIED |
| SAStuebing Automatic Machine Company | Cincinnati | OH | — | ◇ UNVERIFIED |
| SMSturbridge Machining Services LLC | Southbridge | MA | — | ◇ UNVERIFIED |
| SPStx Process Equipment LLC | Freer | TX | — | ◇ UNVERIFIED |
| SMSuburban Machine Corporation | Wheeling | IL | — | ◇ UNVERIFIED |
| SMSuburban Metal Products | Circleville | OH | — | ◇ UNVERIFIED |
| SSSudholt Sheet Metal, INC. | Aviston | IL | — | ◇ UNVERIFIED |
| SHSugar Hollow Machine Shop INC | Jacksboro | TN | — | ◇ UNVERIFIED |
| SPSulfrian Prototype Machining Ltd. | Longmont | CO | — | ◇ UNVERIFIED |
