| Name | Industry | Sector | Headquarters | Founded | Notes | Status |
| 7-Eleven | Consumer services | Broadline retailers | Dallas | 1927 | Convenience store chain | P | A |
| Acme Brick | Industrials | Building materials & fixtures | Fort Worth | 1891 | Brick and masonry | P | A |
| Airbus Helicopters, Inc. | Industrials | Aerospace | Grand Prairie | 1969 | Part of Airbus (Netherlands) | P | A |
| American Airlines | Consumer services | Airlines | Fort Worth | 1936 | Airline, part of American Airlines Group | P | A |
| American Airlines Group | Consumer services | Airlines | Fort Worth | 2013 | Airline holding company | P | A |
| American National Insurance Company | Financials | Full line insurance | Galveston | 1905 | National insurance firm | P | A |
| APA Corporation | Oil & gas | Exploration & production | Houston | 1954 | Hydrocarbon exploration | P | A |
| Aspyr | Technology | Software | Austin | 1996 | Video games | P | A |
| AT&T | Conglomerate | - | Dallas | 1983 | Telecommunications, technology, entertainment | P | A |
| Atmos Energy | Oil & gas | Pipelines | Dallas | 1906 | Natural gas distribution, Energy | P | A |
| Baker Hughes | Oil & gas | Oil equipment & services | Houston | 1907 | Oil field services | P | A |
| Beal Bank | Financials | Banks | Plano | 1988 | Banking | P | A |
| Bell Helicopter | Industrials | Aerospace | Fort Worth | 1935 | Military and commercial helicopters, Aviation | P | A |
| Bennigan's | Consumer services | Restaurants & bars | Dallas | 1976 | Restaurant chain | P | A |
| Berry Aviation | Consumer services | Airlines | San Marcos | 1983 | Charter airline | P | A |
| Black-eyed Pea | Consumer services | Restaurants & bars | Houston | 1975 | Restaurant chain | P | A |
| Blue Bell Creameries | Consumer goods | Food products | Brenham | 1907 | Ice cream, Food Products | P | A |
| BNSF Railway | Industrials | Railroads | Fort Worth | 1996 | Freight rail | P | A |
| Bombay Company | Consumer services | Specialty retailers | Fort Worth | 1978 | Furniture | P | A |
| Borden Dairy | Consumer goods | Food products | Dallas | 2009 | Dairy | P | A |
| Brantly International | Industrials | Aerospace | Coppell | 1945 | Helicopters, Aviation | P | A |
| Brinker International | Consumer services | Restaurants & bars | Dallas | 1991 | Holding company of Chili's and Maggiano's Little Italy | P | A |
| Broadway Bank | Financials | Banks | San Antonio | 1941 | Community bank | P | A |
| Brookshire Brothers | Consumer services | Food retailers & wholesalers | Lufkin | 1921 | Grocery | P | A |
| Brookshire Grocery Company | Consumer services | Food retailers & wholesalers | Tyler | 1928 | Grocery | P | A |
| Burger Street | Consumer services | Restaurants & bars | Dallas | 1985 | Fast food chain | P | A |
| Cameron International | Oil & gas | Oil equipment & services | Houston | 1920 | Oil well services | P | A |
| Carino's Italian | Consumer services | Restaurants & bars | Austin | 1968 | Italian chain | P | A |
| Carter Aviation Technologies | Industrials | Aerospace | Wichita Falls | 1994 | Aerospace technology | P | A |
| CBI Laboratories | Health care | Pharmaceuticals | Fort Worth | 1982 | Dermatological products | P | A |
| Celanese | Basic materials | Specialty chemicals | Irving | 1918 | Chemicals | P | A |
| CenterPoint Energy | Utilities | Gas distribution | Houston | 1882 | Natural gas utility | P | A |
| Central Market | Consumer services | Food retailers & wholesalers | Dallas | 1994 | Specialized grocer; part of H-E-B | P | A |
| Chicken Express | Consumer services | Restaurants & bars | Burleson | 1988 | Fast food chain | P | A |
| Chili's | Consumer services | Restaurants & bars | Dallas | 1975 | Restaurant chain | P | A |
| Chuck E. Cheese's | Consumer services | Restaurants & bars | Irving | 1977 | Restaurant and entertainment chain | P | A |
| Cicis | Consumer services | Restaurants & bars | Plano | 1985 | Pizza chain | P | A |
| Cinemark Theatres | Consumer services | Recreational services | Plano | 1984 | Theater chain | P | A |
| Citgo | Oil & gas | Integrated oil & gas | Houston | 1910 | Owned by PDVSA (Venezuela) | P | A |
| Commercial Metals Company | Basic materials | Iron & steel | Irving | 1915 | Steel and metals | P | A |
| ConocoPhillips | Oil & gas | Exploration & production | Houston | 1875 | Oil exploration and production | P | A |
| The Container Store | Consumer services | Specialty retailers | Coppell | 1978 | Storage retailer | P | A |
| Cooper Industries | Industrials | Electrical components & equipment | Houston | 1833 | Now part of Eaton Corporation (Ireland) | P | D |
| Coterra | Oil & gas | Exploration & production | Houston | 1989 | Hydrocarbon exploration | P | A |
| Curves International | Consumer services | Specialized consumer services | Waco | 1992 | Fitness chain | P | A |
| D. R. Horton | Consumer goods | Home construction | Arlington | 1978 | Homebuilder | P | A |
| DallasNews Corporation | Consumer services | Publishing | Dallas | 2008 | Newspapers | P | A |
| DataTreasury | Technology | Software | Plano | 1998 | Financial software | P | A |
| Dave & Buster's | Consumer services | Restaurants & bars | Dallas | 1982 | Restaurant and entertainment chain | P | A |