thumb|Floating cube at [[ExxonMobil headquarters]]
thumb|[[Sysco headquarters]]
thumb|[[Hewlett Packard Enterprise headquarters]]
thumb|[[The Post Oak|Post Oak Tower in Uptown Houston, the headquarters for Landry's and Fertitta Entertainment ]]
thumb|[[Crown Castle headquarters]]
thumb|[[KBR Tower, KBR's headquarters]]
thumb|[[Academy Sports + Outdoors headquarters in Katy, Texas ]]
This is a list of major companies or subsidiaries headquartered in Houston, Texas and Greater Houston.
Fortune 500 companies based in Greater Houston
{| class="wikitable" font-size:75%; text-align:center; margin:1em;"
|-
| colspan="3" style="background:#9BDDFF;"|Fortune 500 companies based in Houston
|- style="background:#ccc;"
|-
! Rank !! Company name
|-
| 7 || style="background:#afa;" |ExxonMobil
|-
| 15 || style="background:#afa;" |Chevron
|-
| 26 || style="background:#afa;" |Phillips 66
|-
| 54 || Sysco
|-
| 90 || style="background:#afa;" |Enterprise Products Partners
|-
| 92 || style="background:#afa;" |Plains GP Holdings
|-
| 106 || Hewlett Packard Enterprise
|-
| 149 || style="background:#afa;" |Occidental Petroleum
|-
| 156 || style="background:#afa;"|ConocoPhillips
|-
| 161 || style="background:#afa;" |Baker Hughes
|-
| 177 || style="background:#afa;" |Halliburton
|-
| 199 || Waste Management
|-
| 200 || style="background:#afa;" |Cheniere Energy
|-
| 268 || style="background:#afa;" |Kinder Morgan
|-
| 278 || |Quanta Services
|-
| 285 || style="background:#afa;"|EOG Resources
|-
| 286 || Group 1 Automotive
|-
| 333 || NRG Energy
|-
| 342 || CenterPoint Energy
|-
| 364 || style="background:#afa;"|Targa Resources
|-
| 388 || Westlake Chemical
|-
| 457 || style="background:#afa;"|NOV Inc.
|-
| 460 || Huntsman Corporation
|-
| 467 || Crown Castle
|-
| 470 || KBR
|-
| 475 || Academy Sports + Outdoors
|-
| colspan="3" style="background:#afa;"|<small>Companies in the petroleum industry</small>
|}
Other notable companies based in Houston
In addition to the Fortune 500 companies above, many other companies in multiple fields are headquartered or have based their US headquarters in Houston.
<!-- This list is only for companies notable by Wikipedia standards. DO not add any that do not have WP articles. -->
- Al's Formal Wear
- Allis-Chalmers Energy
- Allpoint
- American Bureau of Shipping
- American National Insurance Company (Galveston)
- Aon Hewitt
- Archimage
- Avelo Airlines
- Axiom Space
- Baker Botts
- Bill.com
- BMC Software
- Boardwalk Pipeline Partners
- Bracewell LLP
- Bristow Group
- Buc-Ee's (Pearland, Texas)
- Cadence Bank
- Cal Dive International
- CAMAC Energy
- Camden Property Trust
- Cardtronics
- Charming Charlie
- Chord Energy
- Citgo
- Civeo Corporation
- Comfort Systems USA
- Cooper Industries
- cPanel
- Cybersoft
- Diamond Offshore Drilling
- Direct Energy
- DHI Telecom Group
- Dynegy
- Enbridge
- EnergyFunders
- Family Tree DNA
- Fertitta Entertainment
- Fiesta Mart
- FlightAware
- Forum Energy Technologies
- Freeport-McMoRan Oil & Gas
- Fuddruckers
- Fulbright & Jaworski (now Norton Rose Fulbright US LLP)
- Geokinetics
- Gexa Energy
- Great Lakes Dredge & Dock Co
- Gulf South Pipeline
- Gulf States Toyota Distributors
- HCC Insurance Holdings
- Helix Energy Solutions Group
- Hines Interests Limited Partnership
- Honeywell
- HostGator
- Howard Hughes Corporation
- Insperity
- Integrated Electrical Services
- ION Geophysical
- James Coney Island
- Jiffy Lube
- Jim Adler
- Joe's Crab Shack
- KBR, Inc.
- Kelsey-Seybold Clinic
- Key Energy Services
- Kinder Morgan Energy Partners
- Kirby Corporation
- Landry's Restaurants
- Leisure Learning Unlimited
- Luby's
- Lukoil U.S.
- LyondellBasell US headquarters
- Mac Haik#Mac Haik Enterprises Mac Haik Enterprises
- Marathon Oil
- Marble Slab Creamery
- Mattress Firm
- McDermott International
- Memorial Hermann Healthcare System
- The Methodist Hospital
- MetroCorp Bancshares
- Mexican Restaurants, Inc.
- Microvast
- Motiva Enterprises
- Murphy Oil
- Nabors Industries
- Nalco Champion
- National Tire and Battery
- Nutex Health
- Oceaneering International
- Omega Protein
- OpenStax
- Pappas Restaurants
- Par Pacific Holdings
- Patterson-UTI
- Piping Technology and Products
- Powell Industries
- PROS
- Randall's Food Markets
- Rainforest Cafe
- RedTube
- Rice Epicurean Markets
- St. Luke's Episcopal Hospital
- Saltgrass Steakhouse
- Salata Salad Kitchen
- Seaboard International
- Service Corporation International
- Shipley Do-Nuts
- SnapStream
- Southwestern National Bank
- Spec's Wine, Spirits & Finer Foods
- Stage Stores Inc.
- Stewart & Stevenson
- Stewart Information Services Corporation
- Tailored Brands
- Talos Energy
- Tellurian
- Texas Children's Hospital
- Transwestern
- Travel Wifi
- Two Pesos
- Valaris Limited
- Valencia Group
- Vinson & Elkins
- Weatherford International
- Weed Eater
- WidgetCo, Inc.
- Willbros Group
- Woodforest National Bank
- 3DI - Data Driven Development Initiative
Foreign companies with American headquarters in Houston
- Air Liquide
- Banorte
- BHP
- BP
- CEMEX
- Daikin
- EDP Renewables
- Engie
- Equinor
- Fugro
- JX Nippon Oil & Energy
- Mahindra Group
- Mitsubishi Heavy Industries
- PDVSA
- Petrobras
- Rigaku
- Sabic
- Sasol
- Schlumberger
- Shell plc
- SK Innovation
- TC Energy
- TechnipFMC
- Tokio Marine
- TotalEnergies
- Transocean
- Wood Group
- Worley
- Yokogawa Electric
Companies with a large presence in Houston
- AIG
- Amazon
- Aon
- Collins Aerospace
- Deloitte
- ExxonMobil
- Honeywell
- HP Inc.
- Jacobs Engineering Group
- JPMorgan Chase
- Minute Maid
- Stellantis
- United Airlines Holdings
- Wells Fargo