 | Paramount Transportation Systems | san marcos, california, united states | 156 | truck transportation | 1996 | |
 | University of St. Augustine for Health Sciences | san marcos, california, united states | 1.3K | higher education | 1979 | |
 | Hunter Industries | san marcos, california, united states | 1.4K | manufacturing | 1981 | |
 | Callan Swim School | San Marcos, california, united states | 13 | sports | 2004 | |
 | Consulting & Inspection Services, LLC | San Marcos, california, united states | 13 | construction | 1994 | |
 | Action Air Conditioning, Heating & Solar | San Marcos, california, united states | 53 | consumer services | 1975 | |
 | Everstream Analytics | san marcos, california, united states | 215 | truck transportation | - | |
 | Specialized Mechanical | San Marcos, california, united states | 13 | construction | 2007 | |
 | Do It Tennis | San Marcos, california, united states | 7 | sporting goods | 2005 | |
 | California State University San Marcos | san marcos, california, united states | 2.9K | higher education | - | |
 | Twin Oaks Animal Hospital | San Marcos, california, united states | 12 | veterinary | 2013 | |
 | A Frame of Art | San Marcos, california, united states | - | writing and editing | - | |
 | Sell Your House Direct | San Marcos, california, united states | 3 | real estate | - | |
 | PACIFIC COAST GYMNASTICS, INC. | San Marcos, california, united states | 13 | health, wellness and fitness | - | |
 | JC Golf | san marcos, california, united states | 44 | hospitality | 1970 | |
 | Aeroweld, Inc a J&K Business Group Company | San Marcos, california, united states | 4 | airlines and aviation | 1985 | |
 | Samba Futsal Club | san marcos, california, united states | 5 | spectator sports | 2019 | |
 | Vallecitos Water District | san marcos, california, united states | 77 | utilities | 1955 | |
 | TrueCare | san marcos, california, united states | 395 | hospitals and health care | 1971 | |
| SD Rubber & Gasket, Inc | San Marcos, california, united states | - | import and export | 2008 | |
