Companies based in Houston

Enron Corporation was an American energy, commodities and services company based in Houston, Texas. It was led by Kenneth Lay and developed in 1985 via a merger between Houston Natural Gas and InterNorth, both relatively small regional companies at the time of the merger. Before its bankruptcy on December 2, 2001, Enron employed approximately 20,600 staff and was a major electricity, natural gas, communications, and pulp and paper company, with claimed revenues of nearly $101 billion during 2000. Fortune named Enron "America's Most Innovative Company" for six consecutive years.

ConocoPhillips Company is an American multinational corporation engaged in hydrocarbon exploration and production. It is based in the Energy Corridor district of Houston, Texas.

RedTube is a pornographic video-sharing site, which in September 2009 held an Alexa ranking within the world's top 100 sites. It is one of several pornographic websites owned by Aylo. In June 2010 it had fallen out of the top 100, but it made a return in mid-2012. As of mid September 2020 its Alexa ranking was 520. Its popularity has been ascribed to its non-sexual name, which is a reference to the non-pornographic video sharing website YouTube. The website is based in Houston, Texas, and has servers in San Francisco, New Orleans and Montreal.

company

SLB, formerly known as Schlumberger (), is an American multinational oilfield services company. Founded in France in 1926, the company is now incorporated as SLB N.V. in Willemstad, Curaçao, with principal executive offices in four cities: Paris, France; Houston, Texas, United States; London, UK; and The Hague, Netherlands. As of 2022, it is both the world's largest offshore drilling company and the world's largest offshore drilling contractor by revenue.

American information technology company

American oil company

American entertainment company

United States-based oil and natural gas exploration and production company

British company in United States

energy technology company

American energy and logistics company

Conoco ( ), formerly known as Continental Oil, is an American petroleum brand that is operating under the current ownership of the Phillips 66 Company since 2012 and is headquartered in the Westchase neighborhood of Houston, Texas. The brand is one of the several successors of the original Standard Oil Company ("oil trust" founded 1870 by John D. Rockefeller). Conoco was a subsidiary of Standard Oil from 1884 until 1911 when the Supreme Court of the United States, in an anti-trust legal case, ruled to decouple and break up the monopolized entity of Standard Oil.

American engineering, procurement, and construction company.

Citgo Petroleum Corporation, or Citgo (stylized as CITGO), is a U.S.-located downstream petroleum company that has existed since 1983. Citgo Petroleum was formed as a spinoff of the retail, marketing, and transportation assets of Cities Service following the latter's takeover by Occidental Petroleum in 1982. Headquartered in the Energy Corridor area of Houston, it is majority-owned by PDVSA, a state-owned company of the Venezuelan government (although due to U.S. sanctions in 2019, they no longer from Citgo).

American seafood restaurant chain

oilfield services company

Holding company for Apache Corporation, an American company engaged in hydrocarbon exploration.

American ultra low-cost airline

American entertainment company

ExpressJet Airlines was a regional airline in the United States that operated from 1987 until 2022. It was headquartered in College Park, Georgia. The company began as Britt Airways and flew exclusively as Continental Express, the contracted codeshare partner for Continental Airlines. The name was changed to ExpressJet at the beginning of 1995 as the company began acquiring regional jets, replacing its fleet of turboprop aircraft. Along with flying as Continental Express, ExpressJet expanded flying under the Delta Connection brand from 2007 through 2008 and again from 2012 through 2018. Servic

American automobile manufacturer and modifier

oil and natural gas service company

Pennzoil is an American motor oil brand currently owned by Shell plc. The former Pennzoil Company had been established in 1913 in Pennsylvania, being active in business as an independent firm until it was acquired by Shell in 2002, becoming a brand of the conglomerate.

brand name for parboiled rice and other related food products

FamilyTreeDNA is a division of Gene by Gene, a commercial genetic testing company based in Houston, Texas. FamilyTreeDNA offers analysis of autosomal DNA, Y-DNA, and mitochondrial DNA to individuals for genealogical purpose. With a database of more than two million records, it is the most popular company worldwide for Y-DNA and mitochondrial DNA, and the fourth most popular for autosomal DNA. In Europe, it is the most common also for autosomal DNA. FamilyTreeDNA as a division of Gene by Gene were acquired by MYDNA, Inc., an Australian company, in January 2021.

sports channel group in the US

natural gas extraction plan between Cyprus, Israel, and Greece

former American aerospace corporation

American communications infrastructure company

Hip hop record label

US record label

American company

American fuel company

oilfield services company

company

American engineering company

company

HostGator is a Houston-based provider of shared, reseller, virtual private server, and dedicated web hosting with an additional presence in Austin, Texas.

alt=|thumb|11 Greenway Plaza houses the headquarters of FlightAware. FlightAware is an American multi-national technology company that provides real-time, historical, and predictive flight tracking data and products. it is one of the world's largest flight tracking platform, with a network of over 40,000 ADS-B ground stations in 196 countries. FlightAware also provides aviation data and predicted ETAs to airlines, airport operators, and software developers. FlightAware is a subsidiary of Collins Aerospace (itself a subsidiary of Raytheon), with headquarters in Eleven Greenway Plaza in Houston,

American multimedia distributor

thumb|601 Travis houses the headquarters of Dynegy

electric and natural gas utility

midstream oil and gas company

company

Independent professional wrestling promotion based in Houston, Texas

American funeral home operator

company

former American engineering company

Petrochemical company

oil, natural gas, and geothermal drilling contractor

American chain of automobile repair shops

50–50 joint venture between Shell Oil Company and Saudi Refining

financial services group and defunct Ponzi scheme

chain of restaurants that was founded in 1991 in Lexington, Kentucky, United States

defunct privately held software holding company based in Houston, Texas

American restaurant chain

American mattress retailer

Coterra Energy Inc. is an American energy company engaged in hydrocarbon exploration. The company has operations in the Permian Basin, Marcellus Shale, and the Anadarko Basin. The company is being acquired by Devon Energy.

American oil and natural gas company