| SSSartorius Stedim Filters, INC | Bda Lluberas | PR | Plastics and Rubber Products Manufacturing326111 | — | ◇ UNVERIFIED |
| SISashco INC | Brighton | CO | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| SCSchall Chemical Supply LLC | Monte Vista | CO | Chemical Manufacturing325320 | — | ◇ UNVERIFIED |
| SDSecurity Door Controls | Camarillo | CA | Fabricated Metal Product Manufacturing332439 | 20-99 | ◇ UNVERIFIED |
| SIServatron INC Spokane Valley | Spokane Valley | WA | Computer and Electronic Product Manufacturing334418 | — | ◇ UNVERIFIED |
| SISfi INC | Sparta | WI | Chemical Manufacturing325991 | 20-99 | ◇ UNVERIFIED |
| SOSfi of Arkansas | Conway | AR | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| SGS & G Concrete Company, Llc- Grantley Ave. Plant | Baltimore | MD | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| SRShafer Readi-mix INC | Albion | MI | Nonmetallic Mineral Product Manufacturing327320 | 20-99 | ◇ UNVERIFIED |
| SNShaw Naptech INC | Clearfield | UT | Fabricated Metal Product Manufacturing332439 | — | ◇ UNVERIFIED |
 Siemens Industry INC | Cincinnati | OH | Electrical Equipment, Appliance & Component Manufacturing335312 | — | ◇ UNVERIFIED |
| SSSilver State Plastics INC | Greeley | CO | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| SSSimpson Strong-tie CO INC | West Chicago | IL | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| SDSintertec Div of Bpi INC - Muskogee Cnty Plant | Muskogee | OK | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| SISio International Wisconsin, INC. | Mount Pleasant | WI | Computer and Electronic Product Manufacturing334310 | — | ◇ UNVERIFIED |
| SASkana Aluminum Company | Clarksburg | WV | Primary Metal Manufacturing331318 | — | ◇ UNVERIFIED |
| SMS.k. Mold & Tool | Tipp | OH | Machinery Manufacturing333515 | 20-99 | ◇ UNVERIFIED |
| SASlw Automotive INC / Sallisaw Plt | Sallisaw | OK | Primary Metal Manufacturing331523 | — | ◇ UNVERIFIED |
| SMSolvox Mfg CO | Milwaukee | WI | Chemical Manufacturing325188 | — | ◇ UNVERIFIED |
| SMSorrentino Mariani & Company Incorporated | Norfolk | VA | Furniture and Related Product Manufacturing337122 | 1-19 | ◇ UNVERIFIED |
| SCSouthern Concrete Materials - Sylva Plant | Sylva | NC | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| SSSouthern Structural Steel Incorporated | Smithfield | VA | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| SSSouth Shore Plating Company Incorporated | Quincy | MA | Fabricated Metal Product Manufacturing332312 | 1-19 | ◇ UNVERIFIED |
| SBSpecialty Brands | Lampasas | TX | Food Manufacturing311412 | — | ◇ UNVERIFIED |
| SLSpi Lighting Holdings LLC | Mequon | WI | Electrical Equipment, Appliance & Component Manufacturing335122 | 100-499 | ◇ UNVERIFIED |
| SMSps Medical Supply CORP | Rush | NY | Miscellaneous Manufacturing339114 | — | ◇ UNVERIFIED |
| SWStanley Works INC Tools Div | Cheraw | SC | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| SKSteel King Industries | Rome | GA | Primary Metal Manufacturing331111 | — | ◇ UNVERIFIED |
| SCSterling Colors, LLC | Neenah | WI | Chemical Manufacturing325510 | 1-19 | ◇ UNVERIFIED |
| SLSterrx LLC | Plattsburgh | NY | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| SGStillwater Graphics INC | Williamstown | VT | Printing and Related Support Activities323110 | 1-19 | ◇ UNVERIFIED |
| SIStream Intl INC Provo Mfg Plant | Provo | UT | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| SISunox INC | Rock Hill | SC | Chemical Manufacturing325120 | — | ◇ UNVERIFIED |
| SCSuperior Concrete - Dulles | Chantilly | VA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| SMSuperior Materials 32 | Detroit | MI | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| SSSuper Store Industries Turlock Dairy Division | Turlock | CA | Food Manufacturing311514 | — | ◇ UNVERIFIED |
| SYSuzio York Hill Concrete | New Haven | CT | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| SMSweet Metal Finishing | Attleboro | MA | Fabricated Metal Product Manufacturing332813 | 20-99 | ◇ UNVERIFIED |
| SMSymmetry Medical INC Polyvac | Manchester | NH | Fabricated Metal Product Manufacturing332112 | — | ◇ UNVERIFIED |
| SCSynectic CORP | St Albans | WV | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| TATahoe Asphalt INC | South Lake Tahoe | CA | Petroleum and Coal Products Manufacturing324121 | 1-19 | ◇ UNVERIFIED |
 Taylor Devices INC - North | North Tonawanda | NY | Machinery Manufacturing333995 | — | ◇ UNVERIFIED |
| TPTaylor Pallets INC | Anderson | SC | Wood Product Manufacturing321920 | — | ◇ UNVERIFIED |
| TCTech Circuits INC | Wallingford | CT | Computer and Electronic Product Manufacturing334412 | — | ◇ UNVERIFIED |
| TLTeleflex Limerick Plt | Limerick | PA | Fabricated Metal Product Manufacturing332618 | — | ◇ UNVERIFIED |
| TRTexas Recreation LP | Wichita Falls | TX | Printing and Related Support Activities323113 | — | ◇ UNVERIFIED |
| TDThe Dow Chemical - La Porte Facility | La Porte | TX | Chemical Manufacturing325110 | — | ◇ UNVERIFIED |
| TEThe Eggo Company | Rossville | TN | Food Manufacturing311412 | — | ◇ UNVERIFIED |
| TLThe Lankota Group | Huron | SD | Machinery Manufacturing333111 | 20-99 | ◇ UNVERIFIED |
| TMThermafiber Manufacturing Plant | Wabash | IN | Nonmetallic Mineral Product Manufacturing327993 | — | ◇ UNVERIFIED |
