| SSSoriano Special Coatings | Dallas | TX | — | ◇ UNVERIFIED |
| SBSotek Belrix | Hamburg | NY | — | ◇ UNVERIFIED |
| SESound Enhancement Products | Cary | IL | — | ◇ UNVERIFIED |
| SPSouriau Paande Sequim | Sequim | WA | — | ◇ UNVERIFIED |
| SBSouth Bay Chrome | Santa Ana | CA | — | ◇ UNVERIFIED |
| SSSouthbridge Sheet Metal | Southbridge | MA | — | ◇ UNVERIFIED |
| SISoutheastern Industrial Plating, INC. | Statesville | NC | — | ◇ UNVERIFIED |
| SMSoutheastern Metals | Jacksonville | FL | — | ◇ UNVERIFIED |
| SPSoutheastern Plateworks | Birmingham | AL | — | ◇ UNVERIFIED |
| SSSoutheastern Stud & Components, INC. | Montgomery | AL | — | ◇ UNVERIFIED |
| STSoutheastern Tool & Die | Aberdeen | NC | — | ◇ UNVERIFIED |
| SASouthern Aluminum Finishing Company | Atlanta | GA | — | ◇ UNVERIFIED |
| SCSouthern California Plating CO INC | San Diego | CA | — | ◇ UNVERIFIED |
| SESouthern Erectors INC | Pensacola | FL | — | ◇ UNVERIFIED |
| SMSouthern Machinery CORP | Lakeland | FL | — | ◇ UNVERIFIED |
| SMSouthern Metal Processing Company | Oxford | AL | — | ◇ UNVERIFIED |
| SMSouthern Miscellaneous Columbia LLC | West Columbia | SC | — | ◇ UNVERIFIED |
| SPSouthern Painting & Blasting LLC | Casselberry | FL | — | ◇ UNVERIFIED |
| SPSouthern Plating INC | Johnston City | IL | — | ◇ UNVERIFIED |
| SSSouthern Stamping | Irvington | AL | — | ◇ UNVERIFIED |
| SHSouth Holland Metal Finishing | South Holland | IL | — | ◇ UNVERIFIED |
| SSSouth Shore Finishers INC. (1318008119) | Cleveland | OH | — | ◇ UNVERIFIED |
| SMSouthwest Metal Finishing | Tempe | AZ | — | ◇ UNVERIFIED |
| SPSouthwest Plating INC / Duncan Plating Facility | Duncan | OK | — | ◇ UNVERIFIED |
| SLSpace Lok Incorporated | Gardena | CA | — | ◇ UNVERIFIED |
| SISparkman Industries Plant 2 | Victoria | TX | — | ◇ UNVERIFIED |
| SMSpartech Marine Industries Florida | Rockledge | FL | — | ◇ UNVERIFIED |
| SESparton Enterprises LLC | Norton | OH | — | ◇ UNVERIFIED |
| SFSpecial Fab & Machine, INC. | Lexington | NC | — | ◇ UNVERIFIED |
| SPSpecialized Processing CO INC | El Cajon | CA | — | ◇ UNVERIFIED |
| STSpecial T Mfg | Meadowview | VA | — | ◇ UNVERIFIED |
| STSpecial T Mfg. Corporation | Damascus | VA | — | ◇ UNVERIFIED |
| SESpecialty Engine Components LLC | Taylor | MI | — | ◇ UNVERIFIED |
| SGSpecialty Groups INC Shop | Lost Creek | WV | — | ◇ UNVERIFIED |
| SPSpecialty Plating CO | Mount Vernon | WA | — | ◇ UNVERIFIED |
| SSSpecialty Screw CORP | Rockford | IL | — | ◇ UNVERIFIED |
| SSSpecialty Steel Services Facility | Philadelphia | PA | — | ◇ UNVERIFIED |
| STSpecialty Technology | Mcpherson | KS | — | ◇ UNVERIFIED |
| SPSpecified Plating CO | Chicago | IL | — | ◇ UNVERIFIED |
| SISpectra, INC. | Mishawaka | IN | — | ◇ UNVERIFIED |
| SISpectronics INC | Evansville | IN | — | ◇ UNVERIFIED |
| SASpectrum Aluminum Finishing | Muskego | WI | — | ◇ UNVERIFIED |
| SASpectrum Aquatics | Missoula | MT | — | ◇ UNVERIFIED |
| SSSpeed & Sport Chrome Plating | Houston | TX | — | ◇ UNVERIFIED |
| SESpence Electro Plating CO | Burbank | CA | — | ◇ UNVERIFIED |
| SMSpill-stop Mfg. LLC | Melrose Park | IL | — | ◇ UNVERIFIED |
| SMSpokane Metal Finishing | Spokane | WA | — | ◇ UNVERIFIED |
| SSSpraying System CO | Wheaton | IL | — | ◇ UNVERIFIED |
| SSSpraying Systems CO | Merrimack | NH | — | ◇ UNVERIFIED |
| SWSpringfield Wire INC | Springfield | MA | — | ◇ UNVERIFIED |
| SFSpx Flow US LLC | Delavan | WI | — | ◇ UNVERIFIED |
| SFSpx Flow US LLC - Millstead Way | Rochester | NY | — | ◇ UNVERIFIED |
| SISrp Industries LLC | Akron | OH | — | ◇ UNVERIFIED |
| SWSsab Wear Solutions LLC | Birmingham | AL | — | ◇ UNVERIFIED |
| SSS & S Plating CO | Houston | TX | — | ◇ UNVERIFIED |
| SCSst Custom Fabricators | Okeechobee | FL | — | ◇ UNVERIFIED |
| SSS & S Welding & Fabrication LLC | Lexington | SC | — | ◇ UNVERIFIED |
| SPStabile Plating | Covina | CA | — | ◇ UNVERIFIED |
| SNStabio North America | Trevor | WI | — | ◇ UNVERIFIED |
| SPStack-on Products | Wauconda | IL | — | ◇ UNVERIFIED |
| SAStadco Automatics (0829060007) | Fairborn | OH | — | ◇ UNVERIFIED |
| SPStainless Process Systems | Oxnard | CA | — | ◇ UNVERIFIED |
| SAStandardaero Alliance Inc., Plant 2 | Maryville | TN | — | ◇ UNVERIFIED |
| SAStandardaero (san Antonio) INC | San Antonio | TX | — | ◇ UNVERIFIED |
| SGStandard Golf CO | Cedar Falls | IA | — | ◇ UNVERIFIED |
 Standard Machine Works INC | Houston | TX | — | ◇ UNVERIFIED |
| SNStandard Nut & Bolt Company | Cumberland | RI | — | ◇ UNVERIFIED |
| SPStandard Plating Incorporated | West Springfield | MA | — | ◇ UNVERIFIED |
| SPStandard Prods CO | Port Clinton | OH | — | ◇ UNVERIFIED |
| SRStandard Rubber Products | Hanover | MA | — | ◇ UNVERIFIED |
| STStandard Technologies & Machine CO | Wilmington | DE | — | ◇ UNVERIFIED |
| SIStandex International Spincraft Division | Billerica | MA | — | ◇ UNVERIFIED |
| STStanhope Tool INC | Madison Heights | MI | — | ◇ UNVERIFIED |
| SIStanley Industries INC | Warrensville Hts | OH | — | ◇ UNVERIFIED |
| SKStanley Knight CORP. | Three Oaks | MI | — | ◇ UNVERIFIED |
| SBStar Bright Chrome Plating | Oregon City | OR | — | ◇ UNVERIFIED |
| SBStar Brite Plating-joplin | Joplin | MO | — | ◇ UNVERIFIED |
| SPStar Plating | New Bedford | MA | — | ◇ UNVERIFIED |
| SFState Fabricators, INC. | Farmingtn Hls | MI | — | ◇ UNVERIFIED |
| SPState Plating | Elwood | IN | — | ◇ UNVERIFIED |
| SCStatic Control Components INC Plant #2 | Sanford | NC | — | ◇ UNVERIFIED |
| SPStat Processing INC | Cincinnati | OH | — | ◇ UNVERIFIED |
| SHSteel Heddle LLC | Greenville | SC | — | ◇ UNVERIFIED |
| SRSteel Related Technology | Huger | SC | — | ◇ UNVERIFIED |
| STSteel Tank & Fabricating CO. | Mancelona | MI | — | ◇ UNVERIFIED |
| SWSteel Warehouse of Ohio | Warren | OH | — | ◇ UNVERIFIED |
| SMSteffes Metal Products, LLC - Grand Forks West | Grand Forks | ND | — | ◇ UNVERIFIED |
| SMStephens Metal Products | Yakima | WA | — | ◇ UNVERIFIED |
| SDSteris Distribution Center | Mentor | OH | — | ◇ UNVERIFIED |
| SBSterling Boiler & Mechanical LLC | Evansville | IN | — | ◇ UNVERIFIED |
| SCSterling Custom Sheet Metal | Magnolia | TX | — | ◇ UNVERIFIED |
| SMStevken Manufacturing | Billerica | MA | — | ◇ UNVERIFIED |
| SEStewart Efi Finishing | El Paso | TX | — | ◇ UNVERIFIED |
| SFStillwater Fasteners | Freetown, Town of | MA | — | ◇ UNVERIFIED |
| SLSt. Louis Metallizing Company | Saint Louis | MO | — | ◇ UNVERIFIED |
| SLSt Louis Plating Company Inc-st Louis Plating Company INC | Saint Louis | MO | — | ◇ UNVERIFIED |
| SLSt Louis Screw & Bolt | Madison | IL | — | ◇ UNVERIFIED |
| SLSt Lucie County International Airport | Fort Pierce | FL | — | ◇ UNVERIFIED |
| SIStolberger INC. Dba Wardwell Braiding CO. | Central Falls | RI | — | ◇ UNVERIFIED |
| SIStoll Industries, INC. | Abbeville | SC | — | ◇ UNVERIFIED |
