| SASouthwest Area High School | Chicago | IL | — | ◇ UNVERIFIED |
| SCSouthwest Christian School-maint Dept | Oak Lawn | IL | — | ◇ UNVERIFIED |
| SMSouthwest Management CO | Alsip | IL | — | ◇ UNVERIFIED |
| SMSouthwest Metal Finishing - 2785 S 167th | New Berlin | WI | — | ◇ UNVERIFIED |
| SMSouthwest Metal Finishing - Dakota St Plant | New Berlin | WI | — | ◇ UNVERIFIED |
| SMSouthwest Metal Finishing, INC. | New Berlin | WI | — | ◇ UNVERIFIED |
| SMSouthwest Mill & Lumber Incorporated | N Hollywood | CA | — | ◇ UNVERIFIED |
| SPSouthwest Plating INC / Duncan Plating Facility | Duncan | OK | — | ◇ UNVERIFIED |
| SPSouthwest Polishing & Gold | Houston | TX | — | ◇ UNVERIFIED |
| SRSouthwind Ras LLC | Fairview Heights | IL | — | ◇ UNVERIFIED |
| SRSouthwind Ras LLC | Urbana | IL | — | ◇ UNVERIFIED |
| SRSouthwind Ras LLC | Thornton | IL | — | ◇ UNVERIFIED |
| SCSouthwood Corporation | Charlotte | NC | — | ◇ UNVERIFIED |
| SFSouthwood Furn CORP - Southampton | Hickory | NC | — | ◇ UNVERIFIED |
| SCSoy City Sock Co., INC. | Monticello | IL | — | ◇ UNVERIFIED |
| SESoy Essentials, LLC | Redmond | OR | — | ◇ UNVERIFIED |
| SFSpanish Fork Metals | Spanish Fork | UT | — | ◇ UNVERIFIED |
| SLSparklesgl, LLC | Howell | NJ | — | ◇ UNVERIFIED |
| SDSparrow Development CORP | Morris | IL | — | ◇ UNVERIFIED |
| SISparrow Industries INC | Morris | IL | — | ◇ UNVERIFIED |
| SISpartan Industries, INC. | Pacolet | SC | — | ◇ UNVERIFIED |
 Spartan Machine LLC | Oak Ridge North | TX | — | ◇ UNVERIFIED |
| SCSp Craftech I LLC | Anaheim | CA | — | ◇ UNVERIFIED |
| SPSpecialized Processing CO INC | El Cajon | CA | — | ◇ UNVERIFIED |
| STSpecialized Transport INC | Waverly | IL | — | ◇ UNVERIFIED |
| SMSpecial Metal Services | Omaha | NE | — | ◇ UNVERIFIED |
| SSSpecial Service for Groups | Los Angeles | CA | — | ◇ UNVERIFIED |
| SSSpecial Service for Groups | Los Angeles | CA | — | ◇ UNVERIFIED |
| SSSpecial Service for Groups INC | Los Angeles | CA | — | ◇ UNVERIFIED |
| SSSpecial Service for Groups INC Project 180 | Los Angeles | CA | — | ◇ UNVERIFIED |
| SSSpecial Systems Design INC | Hopkins | MN | — | ◇ UNVERIFIED |
| STSpecial Team | Yorba Linda | CA | — | ◇ UNVERIFIED |
| SESpecial-t Engraving & Gifts | Rockford | IL | — | ◇ UNVERIFIED |
| STSpecial T Mfg | Meadowview | VA | — | ◇ UNVERIFIED |
| STSpecial T Mfg. Corporation | Damascus | VA | — | ◇ UNVERIFIED |
| SMSpecialty Manufacturing INC | San Diego | CA | — | ◇ UNVERIFIED |
| SPSpecialty Packaging | Smyrna | TN | — | ◇ UNVERIFIED |
| SPSpecialty Plating CO | Mount Vernon | WA | — | ◇ UNVERIFIED |
| SPSpecialty Print Communications | Niles | IL | — | ◇ UNVERIFIED |
| SPSpecific Plating CO | Palo Alto | CA | — | ◇ UNVERIFIED |
| SPSpecified Plating CO | Chicago | IL | — | ◇ UNVERIFIED |
| SLSpectex, LLC | Rochester | NH | — | ◇ UNVERIFIED |
| SRSpectex Realty, LLC | Somersworth | NH | — | ◇ UNVERIFIED |
| SISpectra, INC. | Mishawaka | IN | — | ◇ UNVERIFIED |
| SISpectronics INC | Evansville | IN | — | ◇ UNVERIFIED |
| SASpectrum Aluminum Finishing (former) | Muskego | WI | — | ◇ UNVERIFIED |
| SBSpectrum Brands Pet Group INC | Blacksburg | VA | — | ◇ UNVERIFIED |
| SCSpectrum Commercial Group, LLC | Anaheim | CA | — | ◇ UNVERIFIED |
| SDSpectrum Dermatology-camelback | Phoenix | AZ | — | ◇ UNVERIFIED |
| SLSpectrum Laboratories INC Dba Repligen CORP | Rancho Dominguez | CA | — | ◇ UNVERIFIED |
