| SESMP Engineering, Inc. | Arcadia | CA | — | ◇ UNVERIFIED |
| SISmr INC Dba Tube Solutions | Costa Mesa | CA | — | ◇ UNVERIFIED |
| SISms Industries, LLC. | Las Vegas | NV | — | ◇ UNVERIFIED |
| SMS & M Steel Fab INC | Beaverton | OR | — | ◇ UNVERIFIED |
| SMSmtc Manufacturing CORP of Massachusetts | Franklin | MA | — | ◇ UNVERIFIED |
| SMS & M Tool, INC. | Oneida | WI | — | ◇ UNVERIFIED |
| SISMW Inc | Billings | MT | — | ◇ UNVERIFIED |
| STSmw Technologies LLC | Taylor | MI | — | ◇ UNVERIFIED |
| SNS N A P Automotive Performance LLC | Lawrenceburg | KY | — | ◇ UNVERIFIED |
| SESnap-on Equipment, INC. - Snap-on Equipment | Conway | AR | — | ◇ UNVERIFIED |
| STSnapp Tool & Die, Inc. | El Paso | TX | — | ◇ UNVERIFIED |
| SSSnelling Staffing Services | Omaha | NE | — | ◇ UNVERIFIED |
| SMSnell Manufacturing, LLC | Cottontown | TN | — | ◇ UNVERIFIED |
| SVSnell Ventures, LLC | Bradford | TN | — | ◇ UNVERIFIED |
| SPSng Precision Machining, INC. | Prairie Farm | WI | — | ◇ UNVERIFIED |
| SBSno Belt Industries INC | Woodstock | IL | — | ◇ UNVERIFIED |
| SISno-belt Industries INC | Woodstock | IL | — | ◇ UNVERIFIED |
 Snoe INC. Machining & Welding | Caldwell | TX | — | ◇ UNVERIFIED |
| SRSnowfield Rock Products | Hurricane | UT | — | ◇ UNVERIFIED |
| SESnowline Engineering | Shingle Springs | CA | — | ◇ UNVERIFIED |
| SESnyder Equipment Co., INC. | Nixa | MO | — | ◇ UNVERIFIED |
| SISnyder Industries INC | Seattle | WA | — | ◇ UNVERIFIED |
 Snyder Manufacturing, Inc. | Salamanca | NY | — | ◇ UNVERIFIED |
| STSobot Tool and Mfg. Co., INC. | Northbrook | IL | — | ◇ UNVERIFIED |
| SHSocal Hydraulics | El Cajon | CA | — | ◇ UNVERIFIED |
| SCSo Cal Sheet Metal Jatc | City of Industry | CA | — | ◇ UNVERIFIED |
| SSSo-cal Structural Steel Fabrication INC | Marina Del Rey | CA | — | ◇ UNVERIFIED |
| SWSocoastmetalfin.dba West Coast Metal Finishing INC | Los Angeles | CA | — | ◇ UNVERIFIED |
| SASodick America CORP. | San Jose | CA | — | ◇ UNVERIFIED |
| SISoelzer, INC Dba Firestone Fabricators | Signal Hill | CA | — | ◇ UNVERIFIED |
| SRSoiland Repair LLC | Windsor | CA | — | ◇ UNVERIFIED |
| SNSoilmec North America INC. | Paramount | CA | — | ◇ UNVERIFIED |
| SCSolano Concrete Company INC | Fairfield | CA | — | ◇ UNVERIFIED |
| SOSola Operating LLC - Red River Bay Station | Shaw | LA | — | ◇ UNVERIFIED |
| SPSolder Plating Llc, Dba B&w Plating | Fort Smith | AR | — | ◇ UNVERIFIED |
| SISolec International | Carson | CA | — | ◇ UNVERIFIED |
| SFSolid Form Fabrication INC | Mcminnville | OR | — | ◇ UNVERIFIED |
| SPSolidification Products International, INC | North Haven | CT | — | ◇ UNVERIFIED |
| SSSolid Scope Machining CO INC | Carson | CA | — | ◇ UNVERIFIED |
| SSSolid Solutions Manufacturing INC | Huntington Beach | CA | — | ◇ UNVERIFIED |
| SDSolitron Devices INC | Riviera Beach | FL | — | ◇ UNVERIFIED |
| SMSollock Metal Works, LLC | Clute | TX | — | ◇ UNVERIFIED |
| SISolmac, INC. | Buffalo | NY | — | ◇ UNVERIFIED |
| SPSolmar Precision Machining LLC | Ramona | CA | — | ◇ UNVERIFIED |
| STSolomon Tool & Machine LLC | Somerset | KY | — | ◇ UNVERIFIED |
| SOSolors Optional Axis INC | Elk River | MN | — | ◇ UNVERIFIED |
| SOSolors Optional Axis INC | Elk River | MN | — | ◇ UNVERIFIED |
| SOS & O Machines, INC. | Conroe | TX | — | ◇ UNVERIFIED |
| SASomec, a Divison of Snk America, INC. | Sanford | FL | — | ◇ UNVERIFIED |
| SFSomerville Fabricators, INC | Mineral Wells | WV | — | ◇ UNVERIFIED |
| SISomething in the Orange | Colorado Springs | CO | — | ◇ UNVERIFIED |
| SMSondrol Machining LLC | Sunburg | MN | — | ◇ UNVERIFIED |
| SPSonic Plating CO | Gardena | CA | — | ◇ UNVERIFIED |
| SSSonne Steel INC | Smithfield | KY | — | ◇ UNVERIFIED |
| SSSonne Steel INC. | Smithfield | KY | — | ◇ UNVERIFIED |
| STSonny Taylor Enterprises, LLC | Deland | FL | — | ◇ UNVERIFIED |
| SPSonoco - Phoenix | Memphis | TN | — | ◇ UNVERIFIED |
 Sonoco Products Company | Henderson | KY | — | ◇ UNVERIFIED |
| SPSon Phi Ho and Kelly Troung Ho, Trustees of The Ho Family Living Trust Dated 09/ | Campbell | CA | — | ◇ UNVERIFIED |
| SMSooner Manufacturing | Tulsa | OK | — | ◇ UNVERIFIED |
| SPSooner Pipe Crosby Yard | Crosby | TX | — | ◇ UNVERIFIED |
| SPSooner Pipe, LLC | Montoursville | PA | — | ◇ UNVERIFIED |
| SSSopris Steel Construction, Inc. | New Castle | CO | — | ◇ UNVERIFIED |
| SISos/aaa Iron Works INC | Mobile | AL | — | ◇ UNVERIFIED |
| SHSOSD Holdings, LLC | Kentwood | MI | — | ◇ UNVERIFIED |
| SSSos Soda Blasting, INC. | Rockford | IL | — | ◇ UNVERIFIED |
| SBSotek Belrix | Hamburg | NY | — | ◇ UNVERIFIED |
| SFSource Fluid Power INC Dba Vector Engineering CO | Chaska | MN | — | ◇ UNVERIFIED |
| SMSource Machine INC | Burnsville | MN | — | ◇ UNVERIFIED |
| STSource Too Machine INC. | Winnemucca | NV | — | ◇ UNVERIFIED |
| SPSouriau Paande Sequim | Sequim | WA | — | ◇ UNVERIFIED |
| SASousa and Demayo INC | North Attleboro | MA | — | ◇ UNVERIFIED |
| SASouth Anna Stair and Rail Company INC | Ashland | VA | — | ◇ UNVERIFIED |
| SASouth Austin Workshop, LLC | Austin | TX | — | ◇ UNVERIFIED |
| SBSouth Bay Chrome | Santa Ana | CA | — | ◇ UNVERIFIED |
| SESouthbay Eco Blasting INC | Redondo Beach | CA | — | ◇ UNVERIFIED |
 South Central Manufacturing Corporation | Summersville | MO | — | ◇ UNVERIFIED |
| SCSouth Central Precision Machine, CORP | Richfield | UT | — | ◇ UNVERIFIED |
| SCSouth Central Steel Inc. | Harpersville | AL | — | ◇ UNVERIFIED |
| SCSouth Coast Commercial | San Diego | CA | — | ◇ UNVERIFIED |
| SCSouth Coast Quality Gold | Huntington Beach | CA | — | ◇ UNVERIFIED |
| SCSouth County Muffler | Morgan Hill | CA | — | ◇ UNVERIFIED |
| SCSouth County Steel, INC. | West Kingston | RI | — | ◇ UNVERIFIED |
| SCSoutheastern Container | Gautier | MS | — | ◇ UNVERIFIED |
| SESoutheastern Engineering Sales INC | Colonial Heights | VA | — | ◇ UNVERIFIED |
| SISoutheastern Industrial Plating, INC. | Statesville | NC | — | ◇ UNVERIFIED |
| SMSoutheastern Manufacturing Enterprise, INC. | Franklin | TN | — | ◇ UNVERIFIED |
| SMSoutheastern Metal Fabricator | Rockland | MA | — | ◇ UNVERIFIED |
| SPSoutheastern Plateworks | Birmingham | AL | — | ◇ UNVERIFIED |
| SUSoutheastern Unipole INC | Bowling Green | KY | — | ◇ UNVERIFIED |
| SFSoutheast Fabricating, INC. | Cape Girardeau | MO | — | ◇ UNVERIFIED |
| SFSouth-east Fabricators INC. | Rocky Mount | NC | — | ◇ UNVERIFIED |
| SMSoutheast Mechanical Contractors | West Park | FL | — | ◇ UNVERIFIED |
| SASouthern Aluminum Finishing Company | Atlanta | GA | — | ◇ UNVERIFIED |
| SBSouthern Boiler Service INC. | Lakeland | FL | — | ◇ UNVERIFIED |
| SBSouthern Boiler & Tank Works, Incorporat | Memphis | TN | — | ◇ UNVERIFIED |
| SCSouthern California Plating CO INC | San Diego | CA | — | ◇ UNVERIFIED |
| SCSouthern Carbide, INC. | Shreveport | LA | — | ◇ UNVERIFIED |
| SCSouthern Custom Fabrication | Carencro | LA | — | ◇ UNVERIFIED |
| SESouthern Enterprises of Southeast Louisiana, INC. | Ponchatoula | LA | — | ◇ UNVERIFIED |
