| SNSimplex Nails, INC. | Americus | GA | — | ◇ UNVERIFIED |
| SNSinandode North America | Moses Lake | WA | — | ◇ UNVERIFIED |
| SMSiri Manufacturing Company, INC. | Danielson | CT | — | ◇ UNVERIFIED |
| SESkyline Electric and Mfg CO INC | Seattle | WA | — | ◇ UNVERIFIED |
| SISlammers INC. | Paradise | UT | — | ◇ UNVERIFIED |
| SSSlide Systems INC | Harbor City | CA | — | ◇ UNVERIFIED |
| SESmart Electronics & Assembly, INC | Anaheim | CA | — | ◇ UNVERIFIED |
 Smiths Interconnect Americas INC | Costa Mesa | CA | — | ◇ UNVERIFIED |
 Snyder Mfg. CO. | New Sharon | IA | — | ◇ UNVERIFIED |
| SISolarbos, INC. | Livermore | CA | — | ◇ UNVERIFIED |
| SESolar Electric Texas, LLC | San Antonio | TX | — | ◇ UNVERIFIED |
| SESoles Electric of Huntington, INC. | Huntington | WV | — | ◇ UNVERIFIED |
| SWSonco Worldwide INC | Bladensburg | MD | — | ◇ UNVERIFIED |
| SCSonic Component Systems LLC | Corsicana | TX | — | ◇ UNVERIFIED |
| SBSony Biotechnology INC. | San Jose | CA | — | ◇ UNVERIFIED |
| SMSOS Mfg., Inc. | Roberts | WI | — | ◇ UNVERIFIED |
| SISouthern Imperial LLC | Rockford | IL | — | ◇ UNVERIFIED |
| SSSouthern Steel & Wire | Fort Smith | AR | — | ◇ UNVERIFIED |
| SSSouthern Steel - Wire Incorporated | Madison | NC | — | ◇ UNVERIFIED |
| SCSouthwestern Creations LLC | South West City | MO | — | ◇ UNVERIFIED |
| SWSouthwestern Wire Cloth, INC. | Broken Arrow | OK | — | ◇ UNVERIFIED |
| SCSouthwire Company | Carrollton | GA | — | ◇ UNVERIFIED |
| SISpan.io. INC | San Francisco | CA | — | ◇ UNVERIFIED |
| SLSparton LLC Irvine | Irvine | CA | — | ◇ UNVERIFIED |
| SPSpencer Products INC | North Brookfield | MA | — | ◇ UNVERIFIED |
| SSStafford Specialty Wire Company | Worcester | MA | — | ◇ UNVERIFIED |
| SMStainless Metal Products | Chattanooga | TN | — | ◇ UNVERIFIED |
| SBStanley Black and Decker | East Greenwich | RI | — | ◇ UNVERIFIED |
| SBStanley Black and Decker - Greenfield Operations | Greenfield | IN | — | ◇ UNVERIFIED |
| SFStanley-bostitch Fastening Systems | Clinton | CT | — | ◇ UNVERIFIED |
| SIStanley-bostitch INC Clinton Plant | Clinton | CT | — | ◇ UNVERIFIED |
| SGStar Guide Corporation | Arvada | CO | — | ◇ UNVERIFIED |
| SSStateside Steel & Wire LLC | West Memphis | AR | — | ◇ UNVERIFIED |
| SCStatic Control Components, INC. - Plant 19 | Sanford | NC | — | ◇ UNVERIFIED |
| SCStatic Control Components Plant 3 | Sanford | NC | — | ◇ UNVERIFIED |
| SStauffer | New Holland | PA | — | ◇ UNVERIFIED |
| SWStd Wire Products INC. | Huntington Beach | CA | — | ◇ UNVERIFIED |
| SIStelco Industries INC. | Waxahachie | TX | — | ◇ UNVERIFIED |
 Stephens Pipe & Steel LLC | Madison | TN | — | ◇ UNVERIFIED |
| Stephens Pipe & Steel, LLC | Greensboro | NC | — | ◇ UNVERIFIED |
| Stephens Pipe - Steel LLC | Webbs Cross Roads | KY | — | ◇ UNVERIFIED |
| Stephens Pipe & Steel LLC. Dba Stephens Pipe & Ste | Russell Springs | KY | — | ◇ UNVERIFIED |
| SSteradanlaw | Aurora | CO | — | ◇ UNVERIFIED |
| SFSterling Filter and Metal Products, INC. | Moscow | PA | — | ◇ UNVERIFIED |
| SPStone Panels | Carrollton | TX | — | ◇ UNVERIFIED |
| SCStoody Company / Stoody Deloro Stellite INC | City of Industry | CA | — | ◇ UNVERIFIED |
| SSStraits Steel & Wire | Ludington | MI | — | ◇ UNVERIFIED |
| SFSummertree Fence Company, INC. | Shawnee | OK | — | ◇ UNVERIFIED |
| SISunnyz INC | Saint Petersburg | FL | — | ◇ UNVERIFIED |
| SPSunwize Power & Battery, LLC | Ravenna | OH | — | ◇ UNVERIFIED |
