| SSemco | Jacksonville | FL | — | ◇ UNVERIFIED |
| SDSemco Duct and Acoustical Products, INC. | Roanoke | VA | — | ◇ UNVERIFIED |
| SISemco Incorporated Chillicothe | Chillicothe | MO | — | ◇ UNVERIFIED |
| SMSeminole Machine & Welding, INC. | Largo | FL | — | ◇ UNVERIFIED |
| SPSen-dure Products INC | Fort Lauderdale | FL | — | ◇ UNVERIFIED |
| SPSentinel Products | Hyannis | MA | — | ◇ UNVERIFIED |
| SGSentry Group | Rochester | NY | — | ◇ UNVERIFIED |
| SMSentry Metal Blast INC | Niagara Falls | NY | — | ◇ UNVERIFIED |
| SCSerra CORP. | Nevada City | CA | — | ◇ UNVERIFIED |
| SDServ-all Die & Tool CO. | Crystal Lake | IL | — | ◇ UNVERIFIED |
| SIService Iron Works-s Lyon | South Lyon | MI | — | ◇ UNVERIFIED |
| SMService Metal Fabricating INC | Rockaway | NJ | — | ◇ UNVERIFIED |
| SWService Welding and Machine | Louisville | KY | — | ◇ UNVERIFIED |
| SISeville Industries | Abbeville | LA | — | ◇ UNVERIFIED |
| SASfc Adams INC. | Buffalo | NY | — | ◇ UNVERIFIED |
| STSfpp,lp - Tucson Terminal | Tucson | AZ | — | ◇ UNVERIFIED |
| SVShady Vent Aluminum Products INC | Powder Springs | GA | — | ◇ UNVERIFIED |
| SDShae Design Studios (sds) | Knoxville | TN | — | ◇ UNVERIFIED |
| SCShakespeare Composite Structure LLC | Varnville | SC | — | ◇ UNVERIFIED |
| SAShaw App Tubeline | New Brunswick | NJ | — | ◇ UNVERIFIED |
| SPShaw Power Services | Vacaville | CA | — | ◇ UNVERIFIED |
| SPShaw Process Fabricators | West Monroe | LA | — | ◇ UNVERIFIED |
| SSShaw Sss Fabricators | Addis | LA | — | ◇ UNVERIFIED |
| SSShaw Sunland Fabricators INC - Sunland East | Walker | LA | — | ◇ UNVERIFIED |
| SVSheet Vinyl Flooring Mfg Facility | Stillwater | OK | — | ◇ UNVERIFIED |
| SSShelby Steel LLC | Pell City | AL | — | ◇ UNVERIFIED |
| SSShelby Steel Vincent Incorporated | Vincent | AL | — | ◇ UNVERIFIED |
| SSShelco Steel Works INC | South Holland | IL | — | ◇ UNVERIFIED |
| STSheyenne Tooling & Mfg CO | Cooperstown | ND | — | ◇ UNVERIFIED |
| SCShinsei Corporation | Peachtree City | GA | — | ◇ UNVERIFIED |
| SSShoreline Steel South | Paducah | KY | — | ◇ UNVERIFIED |
| SMShugart Manufacturing | Chester | SC | — | ◇ UNVERIFIED |
| SASiag Aerisyn LLC | Chattanooga | TN | — | ◇ UNVERIFIED |
| SLSic Lazaro US INC | Milwaukee | WI | — | ◇ UNVERIFIED |
 Siemens Industry INC | El Paso | TX | — | ◇ UNVERIFIED |
| SOSigma Ohio Industries Plant 3 | Jefferson | OH | — | ◇ UNVERIFIED |
| SASignet Armorlite INC | San Marcos | CA | — | ◇ UNVERIFIED |
| SPSilgan Plastic Closure Solutions | Tolleson | AZ | — | ◇ UNVERIFIED |
| SWSilgan White Cap CORP | Champaign | IL | — | ◇ UNVERIFIED |
| SWSilgan White Cap Corporation | Athens | GA | — | ◇ UNVERIFIED |
| SLSilver Line Windows - Aluminum Div | Middlesex | NJ | — | ◇ UNVERIFIED |
| SSSilver State Plastics INC | Greeley | CO | — | ◇ UNVERIFIED |
| SISimonds International | Ridgefield | WA | — | ◇ UNVERIFIED |
| SWSimonton Windows | Paris | IL | — | ◇ UNVERIFIED |
 Sinicon Plastics INC | Dalton | MA | — | ◇ UNVERIFIED |
| SCSix C Fabrication INC | Winnfield | LA | — | ◇ UNVERIFIED |
| SGSkf Gastonia Facility | Gastonia | NC | — | ◇ UNVERIFIED |
| SSSkf Sealing Solutions | Elgin | IL | — | ◇ UNVERIFIED |
| SSSkf Sealing Solutions / Hobart Plt | Hobart | OK | — | ◇ UNVERIFIED |
| SSSkyline Steel | Newton | IL | — | ◇ UNVERIFIED |
| SLS L Auburn INC | Auburn | NY | — | ◇ UNVERIFIED |
| SISledgecraft, INC. | Murfreesboro | TN | — | ◇ UNVERIFIED |
| SJSlm Jetran Mfg CORP | Franklin Twp | NJ | — | ◇ UNVERIFIED |
| SMSmart Metals | Lawrence | MA | — | ◇ UNVERIFIED |
| SSmf | Minonk | IL | — | ◇ UNVERIFIED |
| SJSmi Joist Sc | Eastover | SC | — | ◇ UNVERIFIED |
| SSSmi Steel Fabricators, INC. Dba Cmc Rebar-orlando | Kissimmee | FL | — | ◇ UNVERIFIED |
| SUSmithers-oasis USA | Dayton | NV | — | ◇ UNVERIFIED |
| STSmiths Tubular Systems | Laconia | NH | — | ◇ UNVERIFIED |
| SSSmith System Manfacturing CO | Princeton | MN | — | ◇ UNVERIFIED |
| SMS & Molders, INC | Manalapan | NJ | — | ◇ UNVERIFIED |
| STSms Technical Services LLC Taylor Division | Taylor | MI | — | ◇ UNVERIFIED |
| SMSmtc Manufacturing CORP of Massachusetts | Franklin | MA | — | ◇ UNVERIFIED |
| SISmt Incorporated - Raleigh Plant | Raleigh | NC | — | ◇ UNVERIFIED |
| SASnappy Adp Div of Standex International | Detroit Lakes | MN | — | ◇ UNVERIFIED |
| SISnyder Industries | Lincoln | NE | — | ◇ UNVERIFIED |
| SISnyder Industries,inc. | Marked Tree | AR | — | ◇ UNVERIFIED |
| SISoelzer, INC Dba Firestone Fabricators | Signal Hill | CA | — | ◇ UNVERIFIED |
| SLSoft-lite LLC | Streetsboro | OH | — | ◇ UNVERIFIED |
| STSolar Turbines Turbofab Facility | Channelview | TX | — | ◇ UNVERIFIED |
| SCSollid Cabinetry | Tempe | AZ | — | ◇ UNVERIFIED |
| SCSolo Cup CO | Highland Park | IL | — | ◇ UNVERIFIED |
| SCSolo Cup CO | Wheeling | IL | — | ◇ UNVERIFIED |
| SCSolo Cup Operating CORP | Urbana | IL | — | ◇ UNVERIFIED |
| SCSolo Cup Operating Corporation - Thomaston Facility | Thomaston | GA | — | ◇ UNVERIFIED |
| SCSolomon Corporation - Flandreau | Flandreau | SD | — | ◇ UNVERIFIED |
| SPSonoco Products Company INC Molded Plastics Division | Union | SC | — | ◇ UNVERIFIED |
| SPSouriau Paande Sequim | Sequim | WA | — | ◇ UNVERIFIED |
| SASousa and Demayo INC | North Attleboro | MA | — | ◇ UNVERIFIED |
| SSSouthbridge Sheet Metal | Southbridge | MA | — | ◇ UNVERIFIED |
| SMSoutheastern Metals | Jacksonville | FL | — | ◇ UNVERIFIED |
| SPSoutheastern Plateworks | Birmingham | AL | — | ◇ UNVERIFIED |
| SSSoutheastern Stud & Components, INC. | Montgomery | AL | — | ◇ UNVERIFIED |
| STSoutheastern Tool & Die | Aberdeen | NC | — | ◇ UNVERIFIED |
| SFSoutheast Fabricators, INC. | Cottondale | AL | — | ◇ UNVERIFIED |
| SESouthern Erectors INC | Pensacola | FL | — | ◇ UNVERIFIED |
| SMSouthern Machinery CORP | Lakeland | FL | — | ◇ UNVERIFIED |
| SMSouthern Marble Mfg INC | Ocala | FL | — | ◇ UNVERIFIED |
| SMSouthern Metal Processing Company | Oxford | AL | — | ◇ UNVERIFIED |
| SMSouthern Metals Company of Mississippi INC | Laurel | MS | — | ◇ UNVERIFIED |
| SMSouthern Miscellaneous Columbia LLC | West Columbia | SC | — | ◇ UNVERIFIED |
| SPSouthern Post Texas | San Marcos | TX | — | ◇ UNVERIFIED |
| SSSouthern Steel Comapny Limited Liability Company | Charlotte | NC | — | ◇ UNVERIFIED |
| SSSouthern Structural Steel Incorporated | Smithfield | VA | — | ◇ UNVERIFIED |
| SSSouthern Structural Steel of Fl, INC | Saint Petersburg | FL | — | ◇ UNVERIFIED |
| SSSouth Sligo Compressor Station | Sligo | LA | — | ◇ UNVERIFIED |
| SISouthtech INC | Tappahannock | VA | — | ◇ UNVERIFIED |
| SVSouth Valley Mfg | Springfield | MO | — | ◇ UNVERIFIED |
| SHSouthwestern Hollow Metal | Raton | NM | — | ◇ UNVERIFIED |
| SSSouthwest Stair INC | El Mirage | AZ | — | ◇ UNVERIFIED |
