| 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 |
| SMStewart Manufacturing Corporation | Moran | KS | — | ◇ 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 |
| SMSt Marys Pressed Metals INC | Ridgway | PA | — | ◇ UNVERIFIED |
| SIStoddard International | Arlington | WA | — | ◇ UNVERIFIED |
| SIStolberger INC. Dba Wardwell Braiding CO. | Central Falls | RI | — | ◇ UNVERIFIED |
| SMStolle Machineryco North Canton | North Canton | OH | — | ◇ UNVERIFIED |
| SIStoll Industries, INC. | Abbeville | SC | — | ◇ UNVERIFIED |
| SBStonehouse Building Products LLC | Florence | KY | — | ◇ UNVERIFIED |
| SPStone Products of St Cloud INC | Sauk Rapids | MN | — | ◇ UNVERIFIED |
| SStoneycreek | Blairstown | IA | — | ◇ UNVERIFIED |
| SPStork Prints America (spgprints America) | Charlotte | NC | — | ◇ UNVERIFIED |
| SSStork Screens America Incorporated | Charlotte | NC | — | ◇ UNVERIFIED |
| SMStratford Metal Finishing | Winston Salem | NC | — | ◇ UNVERIFIED |
| SPStreamwood Plating CO | Streamwood | IL | — | ◇ UNVERIFIED |
| SPStreet & Performance, INC. | Mena | AR | — | ◇ UNVERIFIED |
| SAStrickland Agriculture Services Incorporated | Spring Hope | NC | — | ◇ UNVERIFIED |
| SOStripmasters of Illinois | Granite City | IL | — | ◇ UNVERIFIED |
| SHStrong Hold Products | Louisville | KY | — | ◇ UNVERIFIED |
| SWStruthers Wells Corp/warren | Warren | PA | — | ◇ UNVERIFIED |
| SCStuder Container Service | Tonganoxie | KS | — | ◇ UNVERIFIED |
| SLSturdy Lantern Manufacturing | Franklin | MA | — | ◇ UNVERIFIED |
| SRSturtevant Richmont Dv Ryeson CORP | Franklin Park | IL | — | ◇ UNVERIFIED |
| SVStutzman Virgil M INC | Los Angeles | CA | — | ◇ UNVERIFIED |
| SCStyle Crest Products | Plant City | FL | — | ◇ UNVERIFIED |
| SPSuburban Plastics CO | Elgin | IL | — | ◇ UNVERIFIED |
| SSSudden Services Inc, Distribution and Operations Center | Philadelphia | MS | — | ◇ UNVERIFIED |
| SPSuffern Plating | Lodi | NJ | — | ◇ UNVERIFIED |
| SMSullivan Metals INC | Holly Springs | MS | — | ◇ UNVERIFIED |
| SPSullivan Palatek | Michigan City | IN | — | ◇ UNVERIFIED |
| SPSulzer Pumps | Portland | OR | — | ◇ UNVERIFIED |
| SPSulzer Pump Services (us) INC. | Mobile | AL | — | ◇ UNVERIFIED |
| SPSummit Plastic Company | Mogadore | OH | — | ◇ UNVERIFIED |
| SPSummit Polymers INC - Valley Plant | Portage | MI | — | ◇ UNVERIFIED |
| SPSummit Polymers Vicksburg | Vicksburg | MI | — | ◇ UNVERIFIED |
| SWSummit Window and Patio Door Spokane | Spokane | WA | — | ◇ UNVERIFIED |
| SPSumner Plating CO | Honeoye Falls | NY | — | ◇ UNVERIFIED |
| SFSunbelt Fabricator | Steele | AL | — | ◇ UNVERIFIED |
| SMSuncoast Metal LLC | Sarasota | FL | — | ◇ UNVERIFIED |
| SMSunflower Mfg CO | Cawker City | KS | — | ◇ UNVERIFIED |
| SPSunlite Plastics | Weyers Cave | VA | — | ◇ UNVERIFIED |
