| SMSeminole Marine INC. | Cairo | GA | — | ◇ UNVERIFIED |
| SESenga Eng INC | Santa Ana | CA | — | ◇ UNVERIFIED |
| SCSenju Comtek Corporation | San Jose | CA | — | ◇ UNVERIFIED |
| SASenko Advance Components | Camarillo | CA | — | ◇ UNVERIFIED |
| SMSenseeker Machining Company | Goleta | CA | — | ◇ UNVERIFIED |
| SESeoyon E-hwa Interior Systems Al, LLC | Selma | AL | — | ◇ UNVERIFIED |
| SCSerra CORP. | Nevada City | CA | — | ◇ UNVERIFIED |
| SISerrano Industries | El Paso | TX | — | ◇ UNVERIFIED |
| SMService Metal Fabricating INC | Rockaway | NJ | — | ◇ UNVERIFIED |
| SPService Partners Gutter Supply LLC | Jackson | TN | — | ◇ UNVERIFIED |
| SWSetzers Welding and Manufacturing | Beatrice | NE | — | ◇ UNVERIFIED |
| SPSeven Peaks, LLC & Bratek Engineering & Manufacturing, Inc. | Denver | CO | — | ◇ UNVERIFIED |
| SSSeven Seas Fishing CO | Seattle | WA | — | ◇ UNVERIFIED |
| SMSf Motors, INC | Mishawaka | IN | — | ◇ UNVERIFIED |
| SSSg Steel Services CO. | Fort Lauderdale | FL | — | ◇ UNVERIFIED |
| SVShady Vent Aluminum Products INC. | Atlanta | GA | — | ◇ UNVERIFIED |
| SIShakespeare, INC Dba Embree Marine | Saint Petersburg | FL | — | ◇ UNVERIFIED |
| SCShaklee CORP | Pleasanton | CA | — | ◇ UNVERIFIED |
| SSShallow Sport of Texas, INC. | Los Fresnos | TX | — | ◇ UNVERIFIED |
| SASh America, INC. - Roanoke 1 | Roanoke | IN | — | ◇ UNVERIFIED |
| SMSheet Metal Designs | Jamesport | MO | — | ◇ UNVERIFIED |
| SMSheet Metal Engineers, INC. | Martinez | GA | — | ◇ UNVERIFIED |
| SMSheet Metal Forms L.l.c. | Glendale | AZ | — | ◇ UNVERIFIED |
 Sheet Metal Solutions INC | Tangent | OR | — | ◇ UNVERIFIED |
| Sheet Metal Solutions INC | Tangent | OR | — | ◇ UNVERIFIED |
| SMSheet Metal Specialist of Edmond, LLC | Edmond | OK | — | ◇ UNVERIFIED |
| SMSheet Metal Specialties Inc | Bismarck | ND | — | ◇ UNVERIFIED |
| SMSheet Metal Systems, INC | Pinellas Park | FL | — | ◇ UNVERIFIED |
| SMSheet Metal Unlimited PL Inc. | Sunrise | FL | — | ◇ UNVERIFIED |
| SMSheet Metal Works | West Valley City | UT | — | ◇ UNVERIFIED |
| SMSheet Metal Works LLC | Nashville | TN | — | ◇ UNVERIFIED |
| SSShelburne Shipyard | Shelburne | VT | — | ◇ UNVERIFIED |
| SBShelter Bay Marina and Storage | Marathon | FL | — | ◇ UNVERIFIED |
| SIShelton Industrial Pattern INC. | Saint Louis | MO | — | ◇ UNVERIFIED |
| SSSheridan Sheet Metal CO | New Hope | MN | — | ◇ UNVERIFIED |
| SBSherman Boat Works, INC. D/b/a Mclaughlin Boat Works | Hixson | TN | — | ◇ UNVERIFIED |
| SUShick U.s.a. | Kansas City | MO | — | ◇ UNVERIFIED |
| SIShiloh Industries INC Dickson Manufacturing Div | Dickson | TN | — | ◇ UNVERIFIED |
| SIShiloh Industries, LLC | Dover | PA | — | ◇ UNVERIFIED |
| SIShiloh Industries, LLC | New Freedom | PA | — | ◇ UNVERIFIED |
| SIShipwrights INC | Saint Paul | MN | — | ◇ UNVERIFIED |
| SHS & H Metal Products Inc | Topeka | IN | — | ◇ UNVERIFIED |
| SJShm Jamestown Boat Yard INC. | Jamestown | RI | — | ◇ UNVERIFIED |
| SLShm Lmc LLC | Fort Lauderdale | FL | — | ◇ UNVERIFIED |
| SRShon Reim | Temecula | CA | — | ◇ UNVERIFIED |
| SRShon Reim | San Jacinto | CA | — | ◇ UNVERIFIED |
| SIShouldice Industrial Manufacturers & Contractors INC. | Battle Creek | MI | — | ◇ UNVERIFIED |
| SBSierra Biosystems INC | Sonora | CA | — | ◇ UNVERIFIED |
| SESignature Equipment Corporation | Salt Lake City | UT | — | ◇ UNVERIFIED |
| SBSign Builders, INC. | Birmingham | AL | — | ◇ UNVERIFIED |
| SCSii Companies, INC. | Sun Valley | CA | — | ◇ UNVERIFIED |
| SFSike's Fiberglass Products | Cobbtown | GA | — | ◇ UNVERIFIED |
| SVSilicon Valley Elite Manufacturing INC | Santa Clara | CA | — | ◇ UNVERIFIED |
| SBSilva Boys Corporation Dba Performance Parts Exchange | La Puente | CA | — | ◇ UNVERIFIED |
| SSSilver Stone Sheet Metal Fabrications Corp. | Millstone Township | NJ | — | ◇ UNVERIFIED |
| SSSilver Stone Sheet Metal Fabrications Corp. | Brooklyn | NY | — | ◇ UNVERIFIED |
| SMSilverton Marine Corporation | Millville | NJ | — | ◇ UNVERIFIED |
| SISimar Industries, INC. | Ocala | FL | — | ◇ UNVERIFIED |
| SFSimonian Fruit Company | Fowler | CA | — | ◇ UNVERIFIED |
| SNSivax North America INC | Irvine | CA | — | ◇ UNVERIFIED |
| SJS & J Tube, INC. | Wapello | IA | — | ◇ UNVERIFIED |
| SFSka Fab Steel, LLC | Durango | CO | — | ◇ UNVERIFIED |
| SCSketch Consulting INC | North Hills | CA | — | ◇ UNVERIFIED |
| SCSkier's Choice INC | Maryville | TN | — | ◇ UNVERIFIED |
| SBSkippers Boatique | Cadiz | KY | — | ◇ UNVERIFIED |
| SASkips Auto Parts and Machine | Seaside | CA | — | ◇ UNVERIFIED |
| SSSki Supreme | Palmetto | FL | — | ◇ UNVERIFIED |
| SMSkytek Mfg CO | Ontario | CA | — | ◇ UNVERIFIED |
| SMSlabaugh Metal Fab | Bremen | IN | — | ◇ UNVERIFIED |
| SMSlatem Metals LLC | Great Falls | MT | — | ◇ UNVERIFIED |
| SISlaughter Industrial Fabrication Company, LLC | Houston | TX | — | ◇ UNVERIFIED |
| SMSlh Metals | Corunna | MI | — | ◇ UNVERIFIED |
| SMS&l Machine Logics INC | San Jose | CA | — | ◇ UNVERIFIED |
| SLS. L. M., Inc. | Broadview Heights | OH | — | ◇ UNVERIFIED |
| SCSlo County Flood Control & Water Conservation Dist | Arroyo Grande | CA | — | ◇ UNVERIFIED |
| SLSlow Lane Garage | Montebello | CA | — | ◇ UNVERIFIED |
| SASlt Auto Repair | Sunnyvale | CA | — | ◇ UNVERIFIED |
| STSl Tennessee, LLC | Clinton | TN | — | ◇ UNVERIFIED |
| SSSmall Space Design, LLC | West Hatfield | MA | — | ◇ UNVERIFIED |
| SMSmart Metals | Lawrence | MA | — | ◇ UNVERIFIED |
| SVSmart Vent Products Inc | Juno Beach | FL | — | ◇ UNVERIFIED |
| SCSmith Custom Boats | Largo | FL | — | ◇ UNVERIFIED |
| SWSmith Welding | Cedartown | GA | — | ◇ UNVERIFIED |
| SISmoker-craft INC | Stayton | OR | — | ◇ UNVERIFIED |
| SSSmokercraft South | New Paris | IN | — | ◇ UNVERIFIED |
| SASmooth As Glass | Riverbank | CA | — | ◇ UNVERIFIED |
| SASmp Automotive Systems Alabama, INC. | Vance | AL | — | ◇ UNVERIFIED |
| SISms Industries LLC | Hamden | CT | — | ◇ UNVERIFIED |
| SISmt Incorporated - Raleigh Plant | Raleigh | NC | — | ◇ UNVERIFIED |
| SMSnail Motorsports | North Las Vegas | NV | — | ◇ UNVERIFIED |
| SASnappy Adp Div of Standex International | Detroit Lakes | MN | — | ◇ UNVERIFIED |
| SMSnappy Manufacturing | Medina | NY | — | ◇ UNVERIFIED |
| SSSnodgrass Sheet Metal | Lanett | AL | — | ◇ UNVERIFIED |
| SCSnow & Company INC | Seattle | WA | — | ◇ UNVERIFIED |
| SISnyder Industries | Houston | TX | — | ◇ UNVERIFIED |
| SCSo Cal Maritime Support | Chula Vista | CA | — | ◇ UNVERIFIED |
| SSSocket Source | Cerritos | CA | — | ◇ UNVERIFIED |
| SSSolutions Sheetmetal Inc. | Brooklyn | NY | — | ◇ UNVERIFIED |
| SSomarts | Richmond | CA | — | ◇ UNVERIFIED |
| SPSound Propeller Services INC | Seattle | WA | — | ◇ UNVERIFIED |
