| SBS & B Power Tool Company | Houston | TX | Machinery Manufacturing333992 | — | ◇ UNVERIFIED |
| SGS&C Group Texas, LLC | Houston | TX | Machinery Manufacturing333912 | — | ◇ UNVERIFIED |
 Schuff Steel-gulf Coast Airline Drive Facility | Houston | TX | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| SISeasafe International Grating INC. | Houston | TX | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| SSemasys | Houston | TX | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| SBSemilla Baking CO. LLC | Houston | TX | Food Manufacturing311811 | — | ◇ UNVERIFIED |
| SGSeojin Global | Houston | TX | Electrical Equipment, Appliance & Component Manufacturing335999 | — | ◇ UNVERIFIED |
| SDSeparation Dynamics International LTD | Houston | TX | Machinery Manufacturing333319 | — | ◇ UNVERIFIED |
| SSepramet | Houston | TX | Primary Metal Manufacturing331492 | — | ◇ UNVERIFIED |
| SCSesco Cement, CORP. | Houston | TX | Nonmetallic Mineral Product Manufacturing327310 | — | ◇ UNVERIFIED |
| SCSfr Capital INC Dba Best Way Promotions | Houston | MN | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| SGS & G Plastics | Houston | TX | Plastics and Rubber Products Manufacturing326111 | — | ◇ UNVERIFIED |
| SFShaw Fabricators | Houston | TX | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| STSigma Tube & Bar LLC | Houston | TX | Primary Metal Manufacturing331491 | — | ◇ UNVERIFIED |
| SASign Age Inc | Houston | TX | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| SASignco America LP | Houston | TX | Miscellaneous Manufacturing339950 | — | ◇ UNVERIFIED |
| SPSimon Printing Company | Houston | TX | Printing and Related Support Activities323110 | — | ◇ UNVERIFIED |
| SYSky Yoga & Coffee LLC | Houston | TX | Food Manufacturing311920 | — | ◇ UNVERIFIED |
| SDSlow Dough Bread CO. | Houston | TX | Food Manufacturing311812 | — | ◇ UNVERIFIED |
| SGSlyde G8 Fabrication Inc | Houston | TX | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| SISmart International INC | Houston | TX | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| SASmartmeals Approved LLC. | Houston | TX | Food Manufacturing311991 | — | ◇ UNVERIFIED |
| SMSmi Manufacturing INC. | Houston | TX | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
 Smith International | Houston | TX | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| SPSnappy Printing | Houston | TX | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| STSolar Tec M X LLC | Houston | TX | Computer and Electronic Product Manufacturing334413 | — | ◇ UNVERIFIED |
| SHSolomatic Holdings, LLC | Houston | TX | Furniture and Related Product Manufacturing337127 | — | ◇ UNVERIFIED |
| SFSolvay Fluorides LLC | Houston | TX | Chemical Manufacturing325120 | — | ◇ UNVERIFIED |
| SISond Industries LLC | Houston | TX | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| SMSoutheast Media | Houston | TX | Printing and Related Support Activities323110 | — | ◇ UNVERIFIED |
| SCSouthern Container, LTD | Houston | TX | Paper Manufacturing322211 | — | ◇ UNVERIFIED |
| STSouth Texas Sheet Metal LLC | Houston | TX | Fabricated Metal Product Manufacturing332322 | — | ◇ UNVERIFIED |
| SSSouthwestern Signs Inc | Houston | TX | Printing and Related Support Activities323113 | — | ◇ UNVERIFIED |
| SOSouthwest Oilfield Products INC | Houston | TX | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| SPSouthwest Polishing & Gold | Houston | TX | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| SPSouthwest Precision Printers & Associates | Houston | TX | Printing and Related Support Activities323110 | — | ◇ UNVERIFIED |
| SPSpartak Products INC. | Houston | TX | Fabricated Metal Product Manufacturing332911 | — | ◇ UNVERIFIED |
| SCSpf Corporation of America | Houston | TX | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| SRSP Realty TX, LLC | Houston | TX | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| SBSpring Branch Alternator & Starter | Houston | TX | Machinery Manufacturing333318 | — | ◇ UNVERIFIED |
| SCSpx Corporation | Houston | TX | Fabricated Metal Product Manufacturing332911 | — | ◇ UNVERIFIED |
| SFSquare Foot Partners LLC | Houston | TX | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| SCSrm Concrete Plant 406 | Houston | TX | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| SSS + S Industries-navigation Site | Houston | TX | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| SSS & S Plating Company Coating Dynamics | Houston | TX | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| SFStaff Force, INC. | Houston | TX | Nonmetallic Mineral Product Manufacturing327310 | — | ◇ UNVERIFIED |
| SSStainless Steel Custom Fabricators | Houston | TX | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| SRStandard Register Company | Houston | TX | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| SPStar Pipe Products | Houston | TX | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| SSState Sign Corporation | Houston | TX | Miscellaneous Manufacturing339950 | — | ◇ UNVERIFIED |
