| SASmall Assemblies INC | Chicago | IL | — | ◇ UNVERIFIED |
| SMSmart Metals | Lawrence | MA | — | ◇ UNVERIFIED |
| SISmf INC | Minonk | IL | — | ◇ UNVERIFIED |
| SESmithco Engineering INC | Tulsa | OK | — | ◇ UNVERIFIED |
| SESmith Equipment and Welding | Prineville | OR | — | ◇ UNVERIFIED |
| SMSmith Mountain Industries INC | Forest | VA | — | ◇ UNVERIFIED |
| SMSmiths Machine and Welding Company INC | Brookhaven | MS | — | ◇ UNVERIFIED |
| SISmt Incorporated - Raleigh Plant | Raleigh | NC | — | ◇ UNVERIFIED |
| SASnappy Adp Div of Standex International | Detroit Lakes | MN | — | ◇ UNVERIFIED |
| SDSnh Denison | Denison | TX | — | ◇ UNVERIFIED |
| SISnyder Industries INC | Seattle | WA | — | ◇ UNVERIFIED |
| SCSokol & Company | Countryside | IL | — | ◇ UNVERIFIED |
| SOSomerset Office Condominium | Boston | MA | — | ◇ UNVERIFIED |
| SPSoramatic Precision Machining | Warren | MI | — | ◇ UNVERIFIED |
| SBSotek Belrix | Hamburg | NY | — | ◇ UNVERIFIED |
| SSSouthbridge Sheet Metal | Southbridge | MA | — | ◇ UNVERIFIED |
| SCSouth Chicago Property Mgmt LTD | Chicago | IL | — | ◇ UNVERIFIED |
| SMSoutheastern Metals | Jacksonville | FL | — | ◇ UNVERIFIED |
| SPSoutheastern Plateworks | Birmingham | AL | — | ◇ UNVERIFIED |
| SSSoutheastern Stud & Components, INC. | Montgomery | AL | — | ◇ UNVERIFIED |
| STSoutheastern Tool & Die | Aberdeen | NC | — | ◇ UNVERIFIED |
| SESouthern Erectors INC | Pensacola | FL | — | ◇ UNVERIFIED |
| SMSouthern Machinery CORP | Lakeland | FL | — | ◇ UNVERIFIED |
| SSSouthern Sales | Travelers Rest | SC | — | ◇ UNVERIFIED |
| SASouthwest Aluminum Systems INC | Chandler | AZ | — | ◇ UNVERIFIED |
| SMSouthwest Management CO | Alsip | IL | — | ◇ UNVERIFIED |
| SMSouthwest Mill & Lumber Incorporated | N Hollywood | CA | — | ◇ UNVERIFIED |
| SISparkman Industries Plant 2 | Victoria | TX | — | ◇ UNVERIFIED |
| SSSpeciality Stairs and Miscellaneous Fabrication INC | Pearl | MS | — | ◇ UNVERIFIED |
| SESpecial-t Engraving & Gifts | Rockford | IL | — | ◇ UNVERIFIED |
| SGSpecialty Groups INC Shop | Lost Creek | WV | — | ◇ UNVERIFIED |
| SSSpecialty Steel Services Facility | Philadelphia | PA | — | ◇ UNVERIFIED |
| STSpecialty Tank & Equip CO | Jacksonville | FL | — | ◇ UNVERIFIED |
| SBSpectrum Brands Pet Group INC | Blacksburg | VA | — | ◇ UNVERIFIED |
| SRSpoon Ridge Landfill | Fairview | IL | — | ◇ UNVERIFIED |
| SRSport Redi-mix LLC | Mahomet | IL | — | ◇ UNVERIFIED |
| SSSportsman Steel Safes | Long Beach | CA | — | ◇ UNVERIFIED |
| SWSpringbrook Waste Facility & Compost Site | Naperville | IL | — | ◇ UNVERIFIED |
| SFSpx Flow US LLC - Millstead Way | Rochester | NY | — | ◇ UNVERIFIED |
| SWSsab Wear Solutions LLC | Birmingham | AL | — | ◇ UNVERIFIED |
| SPStainless Process Systems | Oxnard | CA | — | ◇ UNVERIFIED |
 Standard Machine Works INC | Houston | TX | — | ◇ UNVERIFIED |
| STStandard Technologies & Machine CO | Wilmington | DE | — | ◇ UNVERIFIED |
| SWStandard Warehouse Company | Lugoff | SC | — | ◇ UNVERIFIED |
| SIStandex International Spincraft Division | Billerica | MA | — | ◇ UNVERIFIED |
| SBStandley Batch Systems INC | Cape Girardeau | MO | — | ◇ UNVERIFIED |
| SSStanford Sign and Awning INC | Chula Vista | CA | — | ◇ UNVERIFIED |
| SIStanley Industries INC | Warrensville Hts | OH | — | ◇ UNVERIFIED |
| SMStanwade Metal Products | Fowler | 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 |
| SFState Fabricators, INC. | Farmingtn Hls | MI | — | ◇ UNVERIFIED |
| SRState Route 85 (sr-85) Landfill | Buckeye | AZ | — | ◇ UNVERIFIED |
| SSState Street Bank - Westwood | Westwood | MA | — | ◇ UNVERIFIED |
| SASteel Art CO | Boston | MA | — | ◇ UNVERIFIED |
| SCSteel City CORP | Youngstown | OH | — | ◇ UNVERIFIED |
| SFSteel Fab | Abingdon | VA | — | ◇ 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 |
| SPStello Products INC | Spencer | IN | — | ◇ UNVERIFIED |
| SJStephanie Joos | Champaign | IL | — | ◇ UNVERIFIED |
| SMStephens Metal Products | Yakima | WA | — | ◇ UNVERIFIED |
| SCStephenson County Choppers | Freeport | IL | — | ◇ 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 |
| SLSt Lucie County International Airport | Fort Pierce | FL | — | ◇ UNVERIFIED |
| SSStonehouse Signs INC | Arvada | CO | — | ◇ UNVERIFIED |
| SOStorage of America | Rock Island | IL | — | ◇ UNVERIFIED |
| SCStrombecker CORP | Chicago | IL | — | ◇ UNVERIFIED |
| SCStructural Composites Ind | Pomona | CA | — | ◇ UNVERIFIED |
| SWStruthers Wells Corp/warren | Warren | PA | — | ◇ UNVERIFIED |
| SGStuart Gessner | Streator | IL | — | ◇ UNVERIFIED |
| SSSudden Services Inc, Distribution and Operations Center | Philadelphia | MS | — | ◇ UNVERIFIED |
| SISugarcreek Industries INC | Sugarcreek | OH | — | ◇ UNVERIFIED |
| SPSulzer Pumps | Portland | OR | — | ◇ UNVERIFIED |
| SPSulzer Pump Services (us) INC. | Mobile | AL | — | ◇ UNVERIFIED |
| SFSunbelt Fabricator | Steele | AL | — | ◇ UNVERIFIED |
| SSSun State Awnings INC | Englewood | FL | — | ◇ UNVERIFIED |
| SWSun Way Forest Products | Wilmington | IL | — | ◇ UNVERIFIED |
| SCSuperior Cleaners | La Grange Park | IL | — | ◇ UNVERIFIED |
| SESuperior Environmental Remediation, INC | Waukegan | IL | — | ◇ UNVERIFIED |
| SFSuperior Fabrication & Welding LLC | Punta Gorda | FL | — | ◇ UNVERIFIED |
| SMSuperior Machine & Pattern, INC. | Talladega | AL | — | ◇ UNVERIFIED |
| SSSuperior Solvents and Chemicals INC | Effingham | IL | — | ◇ UNVERIFIED |
| SLSupreme Laundry / Scranton | Scranton | PA | — | ◇ UNVERIFIED |
| SISwabplus INC | Rancho Cucamonga | CA | — | ◇ UNVERIFIED |
| SRSwanson Robert | Belvidere | IL | — | ◇ UNVERIFIED |
| TGTait Global LLC | Lititz | PA | — | ◇ UNVERIFIED |
| TCTank Components Industries | Springfield | MO | — | ◇ UNVERIFIED |
| TCTankcraft CORP | Walworth | WI | — | ◇ UNVERIFIED |
| TPTank Partners | Seguin | TX | — | ◇ UNVERIFIED |
| TSTank Solutions Inc/smock Plt | Smock | PA | — | ◇ UNVERIFIED |
