| GRGeist Robotics, INC. | San Marcos | TX | Computer and Electronic Product Manufacturing334290 | — | ◐ LIKELY ACTIVE |
| IRIngram Readymix, Inc.-san Marcos #13 | San Marcos | TX | Nonmetallic Mineral Product Manufacturing327320 | 20-99 | ◐ LIKELY ACTIVE |
| KSKamps San Marcos | San Marcos | TX | Wood Product Manufacturing321920 | 1-19 | ◐ LIKELY ACTIVE |
| KMK-tech Machine, INC. | San Marcos | CA | Fabricated Metal Product Manufacturing332710 | — | ◐ LIKELY ACTIVE |
| LFLa Fleur's Winery | San Marcos | CA | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| MDMACKAY Distillers | San Marcos | CA | Beverage and Tobacco Product Manufacturing312140 | — | ◐ LIKELY ACTIVE |
| MMMeadiocrity Mead | San Marcos | CA | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| MSM&q Smtx | San Marcos | TX | Plastics and Rubber Products Manufacturing326111 | 20-99 | ◐ LIKELY ACTIVE |
| NENaval Engineering Technology LLC. | San Marcos | CA | Transportation Equipment Manufacturing336611 | 1-19 | ◐ LIKELY ACTIVE |
| OHO'neill Honey Company LLC | San Marcos | CA | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| PVParadis Vineyard and Winery, LLC | San Marcos | TX | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| PSPerfect Soul Whiskey, LLC | San Marcos | CA | Beverage and Tobacco Product Manufacturing312140 | — | ◐ LIKELY ACTIVE |
Playcore Wisconsin, Inc., dba GFRC | San Marcos | TX | Miscellaneous Manufacturing339920 | 1-19 | ◐ LIKELY ACTIVE |
| RCRaging Cider & Mead Co. | San Marcos | CA | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| RIRealStuff, Inc dba Yellowbird Food | San Marcos | TX | Food Manufacturing311941 | 20-99 | ◐ LIKELY ACTIVE |
| RCReitz, Charles | San Marcos | CA | Fabricated Metal Product Manufacturing332999 | — | ◐ LIKELY ACTIVE |
| RHRuby Heels Wine Shoppe | San Marcos | TX | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| SMSan Marcos | San Marcos | CA | Miscellaneous Manufacturing339113 | 1-19 | ◐ LIKELY ACTIVE |
| SPSATP Pavestone | San Marcos | TX | Nonmetallic Mineral Product Manufacturing327331 | 20-99 | ◐ LIKELY ACTIVE |
| TOTwin Oaks Valley Winery | San Marcos | CA | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| TDTideborn Defense, LLC | San Marcos | TX | Transportation Equipment Manufacturing336611 | — | ◐ LIKELY ACTIVE |
| BIBaked in the Sun Dba House of Tudor | San Marcos | CA | Food Manufacturing311812 | — | ◇ UNVERIFIED |
| BHB & H Tool CO | San Marcos | CA | Machinery Manufacturing333514 | — | ◇ UNVERIFIED |
| CMCart Mart INC | San Marcos | CA | Transportation Equipment Manufacturing336999 | 100-499 | ◇ UNVERIFIED |
| CGCotechno Group, INC. | San Marcos | TX | Plastics and Rubber Products Manufacturing326199 | 20-99 | ◇ UNVERIFIED |
| GCGsi Capital Partners LLC | San Marcos | CA | Leather and Allied Product Manufacturing316110 | 1-19 | ◇ UNVERIFIED |
| GBGulf Business Forms | San Marcos | TX | Printing and Related Support Activities323113 | 20-99 | ◇ UNVERIFIED |
| IBInnovative Biosciences Corporation | San Marcos | CA | Miscellaneous Manufacturing339999 | 20-99 | ◇ UNVERIFIED |
| IGInternational Greenscapes LLC | San Marcos | CA | Miscellaneous Manufacturing339999 | 20-99 | ◇ UNVERIFIED |
| JDJay-Mar Designs, Inc. | San Marcos | CA | Miscellaneous Manufacturing339950 | 1-19 | ◇ UNVERIFIED |
| PGPeter Grimm Ltd., INC. | San Marcos | CA | Apparel Manufacturing315991 | 20-99 | ◇ UNVERIFIED |
| SPSienna Print & Design INC Dba Alphagraphics 554 | San Marcos | CA | Printing and Related Support Activities323119 | 1-19 | ◇ UNVERIFIED |
| SASpecialized Aero, LLC | San Marcos | TX | Transportation Equipment Manufacturing336413 | 20-99 | ◇ UNVERIFIED |
| WSWestern Sign and Awning | San Marcos | CA | Miscellaneous Manufacturing339950 | 20-99 | ◇ UNVERIFIED |
| WGWimberley Glass Works | San Marcos | TX | Nonmetallic Mineral Product Manufacturing327215 | 1-19 | ◇ UNVERIFIED |
| 2V237 Via Vera Cruz | San Marcos | CA | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| 7W74 Weld, Inc. | San Marcos | CA | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| ACAbba Collision Paint & Body Dba La Mirada Paint and Body Shop | San Marcos | CA | Transportation Equipment Manufacturing336360 | — | ◇ UNVERIFIED |
| ABAbel & Brothers Custom Iron Works | San Marcos | CA | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| AIAeroweld INC | San Marcos | CA | Transportation Equipment Manufacturing336412 | — | ◇ UNVERIFIED |
| AGA & G Industries INC | San Marcos | CA | Machinery Manufacturing333414 | — | ◇ UNVERIFIED |
| ACAll City Storage | San Marcos | CA | Machinery Manufacturing333921 | — | ◇ UNVERIFIED |
| AIAltra Industrial Motion | San Marcos | TX | Machinery Manufacturing333613 | — | ◇ UNVERIFIED |
| ALAquaneering LLC | San Marcos | CA | Apparel Manufacturing315990 | — | ◇ UNVERIFIED |
| AAAudience AV, Inc. | San Marcos | CA | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| BBBestop Baja LLC Dba Baja Designs | San Marcos | CA | Transportation Equipment Manufacturing336321 | — | ◇ UNVERIFIED |
| BFBiodriven Fuel LP | San Marcos | CA | Petroleum and Coal Products Manufacturing324191 | — | ◇ UNVERIFIED |
| BEBlackhawk Enterprises Company | San Marcos | TX | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| BSBoral Stone Products LLC | San Marcos | CA | Nonmetallic Mineral Product Manufacturing327999 | — | ◇ UNVERIFIED |
| BVBravo Visual Solutions LLC | San Marcos | TX | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |