Texas has a business-friendly environment and rich infrastructure, making it home to a variety of large companies across industries, from traditional oil and gas to high-tech and retail. These companies are primarily concentrated in major cities like Dallas (and surrounding areas), Houston, Austin, and San Antonio. Below are some representative companies headquartered in Texas.

- ExxonMobil
- Headquarters: Irving (suburb of Dallas)
- One of the largest oil and gas companies in the world, with significant global influence in refining and chemicals.
- ConocoPhillips
- Headquarters: Houston
- A global energy company focused on the exploration and production of crude oil and natural gas.
- Valero Energy
- Headquarters: San Antonio
- A large energy company specialized in refining and retail distribution.
- Dell Technologies
- Headquarters: Round Rock (suburb of Austin)
- A leading global company in PCs, servers, and storage.
- Texas Instruments
- Headquarters: Dallas
- A representative company in the field of analog semiconductors and embedded processors.
- Oracle
- Headquarters relocation: California → Austin
- A global software and cloud company that has recently moved its headquarters to Texas.
- AT&T
- Headquarters: Dallas
- One of the largest telecommunications companies in the U.S., providing comprehensive communication services including mobile, media, and internet.
- Southwest Airlines
- Headquarters: Dallas (near Dallas Love Field Airport)
- A leader in the low-cost airline sector, operating flights across the U.S. and some international routes.
- American Airlines
- Headquarters: Fort Worth (near DFW Airport)
- A major airline with a global route network, operating out of DFW Airport as its hub.
- H-E-B
- Headquarters: San Antonio
- A large supermarket chain with significant influence in Texas and Mexico.
- Whole Foods Market
- Headquarters: Austin
- A premium organic food chain, currently acquired by Amazon.
- 7-Eleven USA Headquarters
- U.S. Headquarters: Irving (suburb of Dallas)
- A convenience store chain originally owned by a Japanese company, but the U.S. branch is based in Texas.
- USAA
- Headquarters: San Antonio
- An insurance and financial services company targeting military members and veterans.
- Kimberly-Clark
- Headquarters: Irving
- A global consumer goods company known for brands like Kleenex and Huggies.
- Sysco
- Headquarters: Houston
- The largest food distribution company in the U.S.
- Tesla
- Official headquarters relocated to Austin, Texas (between 2021 and 2022). Operates electric vehicle and battery gigafactories.
- Hewlett Packard Enterprise
- Headquarters: Houston
- Provides servers, storage, and cloud solutions, spun off from HP in the past.
- Motiva Enterprises
- Headquarters: Houston
- Focused on refining and distribution (including Circle K gas stations).
Companies headquartered in Texas span a wide range of industries, including oil and gas, IT, retail, and finance. The concentration of industries varies slightly across major metropolitan areas like Dallas-Fort Worth, Houston, Austin, and San Antonio, showcasing Texas's strong economic influence across multiple sectors.








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