| SCSolo Cup Operating CORP | Urbana | IL | — | ◇ UNVERIFIED |
| SCSolo Cup Operating Corporation - Thomaston Facility | Thomaston | GA | — | ◇ UNVERIFIED |
| SCSolomon Corporation - Flandreau | Flandreau | SD | — | ◇ UNVERIFIED |
| SOSomerset Office Condominium | Boston | MA | — | ◇ UNVERIFIED |
| SPSonoco Products Company INC Molded Plastics Division | Union | SC | — | ◇ UNVERIFIED |
| SPSoramatic Precision Machining | Warren | MI | — | ◇ UNVERIFIED |
| SBSotek Belrix | Hamburg | NY | — | ◇ UNVERIFIED |
| SPSouriau Paande Sequim | Sequim | WA | — | ◇ UNVERIFIED |
| SSSouthbridge Sheet Metal | Southbridge | MA | — | ◇ UNVERIFIED |
| SCSouth Chicago Property Mgmt LTD | Chicago | IL | — | ◇ UNVERIFIED |
| SMSoutheastern Metals | Jacksonville | FL | — | ◇ UNVERIFIED |
| SSSoutheastern Stud & Components, INC. | Montgomery | AL | — | ◇ UNVERIFIED |
| STSoutheastern Tool & Die | Aberdeen | NC | — | ◇ UNVERIFIED |
| SISouthern Imperial LLC | Rockford | IL | — | ◇ UNVERIFIED |
| SMSouthern Marble Mfg INC | Ocala | FL | — | ◇ UNVERIFIED |
| SMSouthern Metal Processing Company | Oxford | AL | — | ◇ UNVERIFIED |
| SMSouthern Miscellaneous Columbia LLC | West Columbia | SC | — | ◇ UNVERIFIED |
| SSSouthern Sales | Travelers Rest | SC | — | ◇ UNVERIFIED |
| SSSouthern Steel & Wire | Fort Smith | AR | — | ◇ UNVERIFIED |
| SISouthtech INC | Tappahannock | VA | — | ◇ UNVERIFIED |
| SWSouthwestern Wire INC | Mcclellan | CA | — | ◇ UNVERIFIED |
| SMSouthwest Management CO | Alsip | IL | — | ◇ UNVERIFIED |
| SMSouthwest Mill & Lumber Incorporated | N Hollywood | CA | — | ◇ UNVERIFIED |
| SISpacesonic INC | Union City | 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 |
 Special-lite, INC. - | Benton Harbor | MI | — | ◇ UNVERIFIED |
| SESpecial-t Engraving & Gifts | Rockford | IL | — | ◇ UNVERIFIED |
| SGSpecialty Groups INC Shop | Lost Creek | WV | — | ◇ UNVERIFIED |
| SLSpecialty Lens Corporation | Salt Lake City | UT | — | ◇ UNVERIFIED |
| SSSpecialty Steel Services Facility | Philadelphia | PA | — | ◇ UNVERIFIED |
| SASpectrum Aquatics | Missoula | MT | — | ◇ UNVERIFIED |
| SBSpectrum Brands Pet Group INC | Blacksburg | VA | — | ◇ UNVERIFIED |
| SISpeedling, INC. | Ruskin | FL | — | ◇ UNVERIFIED |
| SMSpill-stop Mfg. LLC | Melrose Park | IL | — | ◇ UNVERIFIED |
| SBSplendor Boats, INC. | Silver Lake | IN | — | ◇ UNVERIFIED |
| SRSpoon Ridge Landfill | Fairview | IL | — | ◇ UNVERIFIED |
| SRSport Redi-mix LLC | Mahomet | IL | — | ◇ UNVERIFIED |
| SSSpraying System CO | Wheaton | IL | — | ◇ UNVERIFIED |
| SSSpraying Systems CO | Merrimack | NH | — | ◇ UNVERIFIED |
| SWSpringbrook Waste Facility & Compost Site | Naperville | IL | — | ◇ UNVERIFIED |
| SCSpringdale Complex | Springdale | AR | — | ◇ UNVERIFIED |
| SRSpringfield Re-manuf CORP | Springfield | MO | — | ◇ UNVERIFIED |
| SWSpringfield Wire INC | Springfield | MA | — | ◇ UNVERIFIED |
| SFSpx Flow US LLC - Millstead Way | Rochester | NY | — | ◇ UNVERIFIED |
| SASr - Arkansas | Wilson | AR | — | ◇ UNVERIFIED |
| SISrp Industries LLC | Akron | OH | — | ◇ UNVERIFIED |
| SCSst Custom Fabricators | Okeechobee | FL | — | ◇ UNVERIFIED |
| SPStack-on Products | Wauconda | IL | — | ◇ UNVERIFIED |
| SMStainless Metal Products | Chattanooga | TN | — | ◇ UNVERIFIED |
| SGStandard Glas, Star Glas INC. | Bremen | IN | — | ◇ UNVERIFIED |
| SGStandard Golf CO | Cedar Falls | IA | — | ◇ UNVERIFIED |
 Standard Machine Works INC | Houston | TX | — | ◇ UNVERIFIED |
| SMStandard Motor Electronics | Orlando | FL | — | ◇ UNVERIFIED |
| SPStandard Prods CO | Port Clinton | OH | — | ◇ UNVERIFIED |
| SRStandard Rubber Products | Hanover | MA | — | ◇ UNVERIFIED |
| STStandard Technologies & Machine CO | Wilmington | DE | — | ◇ UNVERIFIED |
| SWStandard Warehouse Company | Lugoff | SC | — | ◇ UNVERIFIED |
| SIStandex International Spincraft Division | Billerica | MA | — | ◇ UNVERIFIED |
| SSStanford Sign and Awning INC | Chula Vista | CA | — | ◇ UNVERIFIED |
| SEStanley Engineered Fastening | Chesterfield | MI | — | ◇ UNVERIFIED |
| SIStanley Industries INC | Warrensville Hts | OH | — | ◇ UNVERIFIED |
| SAStark Auto Sales | Charleston | IL | — | ◇ UNVERIFIED |
| SEStark Excavating | Bloomington | IL | — | ◇ UNVERIFIED |
| SPStarro Precision Products INC | Elgin | IL | — | ◇ UNVERIFIED |
| SRStarved Rock Adventures, INC. | Ottawa | IL | — | ◇ UNVERIFIED |
| SRState Route 85 (sr-85) Landfill | Buckeye | AZ | — | ◇ UNVERIFIED |
| SSState Street Bank - Westwood | Westwood | MA | — | ◇ UNVERIFIED |
| SASteel Art CO | Boston | MA | — | ◇ UNVERIFIED |
| SPSteel Products Company | Leicester | MA | — | ◇ UNVERIFIED |
| SWSteel Warehouse of Ohio | Warren | OH | — | ◇ UNVERIFIED |
| SPStello Products INC | Spencer | IN | — | ◇ UNVERIFIED |
| SJStephanie Joos | Champaign | IL | — | ◇ UNVERIFIED |
| SMStephens Metal Products | Yakima | WA | — | ◇ UNVERIFIED |
| SCStephenson County Choppers | Freeport | IL | — | ◇ UNVERIFIED |
| SDSteris Distribution Center | Mentor | OH | — | ◇ UNVERIFIED |
| SCSterling Custom Sheet Metal | Magnolia | TX | — | ◇ UNVERIFIED |
| SESterling Engines | Rockford | IL | — | ◇ UNVERIFIED |
| SPSteven Piper & Sons | Naperville | IL | — | ◇ UNVERIFIED |
| SIStevers INC | Peoria | IL | — | ◇ UNVERIFIED |
| SLSt. Louis Metallizing Company | Saint Louis | MO | — | ◇ UNVERIFIED |
| SLSt Louis National Stockyards | East Saint Louis | IL | — | ◇ UNVERIFIED |
| SLSt Louis Regional Airport | East Alton | IL | — | ◇ UNVERIFIED |
| SIStoll Industries, INC. | Abbeville | SC | — | ◇ UNVERIFIED |
| SBStonehouse Building Products LLC | Florence | KY | — | ◇ UNVERIFIED |
| SSStonehouse Signs INC | Arvada | CO | — | ◇ UNVERIFIED |
| SPStone Products of St Cloud INC | Sauk Rapids | MN | — | ◇ UNVERIFIED |
| SStoneycreek | Blairstown | IA | — | ◇ UNVERIFIED |
| SCStoody Company / Stoody Deloro Stellite INC | City of Industry | CA | — | ◇ UNVERIFIED |
| SOStorage of America | Rock Island | IL | — | ◇ UNVERIFIED |
| SAStrickland Agriculture Services Incorporated | Spring Hope | NC | — | ◇ UNVERIFIED |
| SOStripmasters of Illinois | Granite City | IL | — | ◇ UNVERIFIED |
| SCStrombecker CORP | Chicago | IL | — | ◇ UNVERIFIED |
| SGStuart Gessner | Streator | IL | — | ◇ UNVERIFIED |
| SCStuder Container Service | Tonganoxie | KS | — | ◇ UNVERIFIED |
| SLSturdy Lantern Manufacturing | Franklin | MA | — | ◇ UNVERIFIED |
| SCStyle Crest Products | Plant City | FL | — | ◇ UNVERIFIED |
| SPSuburban Plastics CO | Elgin | IL | — | ◇ UNVERIFIED |
