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30 leading multinational companies in Houston

Tamtam tracks 402 multinational companies headquartered in Houston. This list ranks the 30 largest by number of employees on LinkedIn, led by Hewlett Packard Enterprise, SLB and Baker Hughes. Their median headcount is 15,172. Half of them were founded in 1973 or later.

๐Ÿ‡บ๐Ÿ‡ธ Houston30 companiesUpdated Nov 11, 2026

These multinational companies in Houston are mostly large groups in the energy sector. Hewlett Packard Enterprise is a global edge-to-cloud company. SLB develops technologies to unlock energy access while reducing carbon emissions. Baker Hughes provides innovative solutions for the energy and industrial sectors, and Halliburton engineers solutions to maximize energy asset value. Sysco distributes food and related products, and Houston Methodist is a comprehensive health system.

The data shows that many of these companies were founded in the 21st century, such as Tenaris (2002), LyondellBasell (2007), and ConocoPhillips (2012). The prevalence of oil and gas companies like Chevron, NOV, and Oxy, alongside IT services firms like KBR, Inc., indicates a mix of traditional and technology-driven industries.

#CompanyIndustryHeadquarters EmployeesFounded
1
Hewlett Packard Enterprisehpe.com

This company is a global edge-to-cloud company that drives technology and innovation to fulfill its passion and purpose

IT Services and IT Consulting ๐Ÿ‡บ๐Ÿ‡ธ Houston 90,021 n/a
2
SLBslb.com

Global innovators developing advanced technologies to unlock energy access while reducing carbon emissions through sustainable engineering and diverse technical change maker expertise.

Technology, Information and Internet ๐Ÿ‡บ๐Ÿ‡ธ Houston 79,707 n/a
3
Baker Hughesbakerhughes.com

Energy technology company providing innovative solutions globally, focusing on safety, efficiency, and sustainability in the energy and industrial sectors

Energy Technology ๐Ÿ‡บ๐Ÿ‡ธ Houston 67,440 n/a
4
Halliburtonhalliburton.com

Collaborates to engineer solutions maximizing energy asset value, from locating hydrocarbons, managing data, drilling, evaluating, and constructing wells, to optimizing production.

Oil and Gas ๐Ÿ‡บ๐Ÿ‡ธ Houston 60,277 1919
5
Chevronchevron.com

The company values its people and their innovation in tackling energy challenges, fostering open and respectful communication on LinkedIn

Oil and Gas ๐Ÿ‡บ๐Ÿ‡ธ Houston 55,495 n/a
6
NOVnov.com

Provider of technology-driven solutions for the global energy industry, enabling safe energy production, environmental impact reduction, and advancing towards a more sustainable future

Oil and Gas ๐Ÿ‡บ๐Ÿ‡ธ Houston 37,645 n/a
7
Syscosysco.com

Global leader in selling, marketing, and distributing food and related products to customers preparing meals away from home, including restaurants and facilities.

Food and Beverage Services ๐Ÿ‡บ๐Ÿ‡ธ Houston 31,974 n/a
8
KBR, Inc.kbr.com

Providing science, technology, and engineering solutions to governments and companies worldwide addressing significant contemporary challenges and opportunities.

IT Services and IT Consulting ๐Ÿ‡บ๐Ÿ‡ธ Houston 31,433 n/a
9
McDermott International, Ltdmcdermott.com

Engineering and construction solutions for global energy industry, focusing on sustainable energy infrastructure and energy transition projects worldwide.

Oil and Gas ๐Ÿ‡บ๐Ÿ‡ธ Houston 23,162 n/a
10
Houston Methodisthoustonmethodist.org

Comprehensive health system with hospitals, research institute, residency programs, outpatient and emergency care centers serving Greater Houston area.

Hospitals and Health Care ๐Ÿ‡บ๐Ÿ‡ธ Houston 22,002 n/a
11
Tenaristenaris.com

A leading supplier of tubes and services for the energy industry and other industrial applications, with a global workforce committed to continuous improvement

Oil and Gas ๐Ÿ‡บ๐Ÿ‡ธ Houston 20,000 2002
12
Cameron Productsslb.com

A leading provider of flow equipment products, systems, and services for the global oil, gas, and process industries, with a strong global network

Oil and Gas ๐Ÿ‡บ๐Ÿ‡ธ Houston 18,396 n/a
13
ConocoPhillipsconocophillips.com

A global oil and gas company focusing on safely finding and delivering energy worldwide while fostering a great workplace and community

Oil and Gas ๐Ÿ‡บ๐Ÿ‡ธ Houston 16,478 2012
14
Oxyoxy.com

An international energy company with assets in the US, Middle East, and North Africa, focused on oil production, midstream services, chemical manufacturing, and carbon reduction technologies

Oil and Gas ๐Ÿ‡บ๐Ÿ‡ธ Houston 16,319 n/a
15
LyondellBaselllyondellbasell.com

Leading global chemical company producing innovative polymers and polyolefins for sustainable transportation, food safety, clean water, and healthcare applications.

Chemical Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Houston 15,172 2007

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16
Phillips 66phillips66.com

A global energy company focused on manufacturing petroleum products, natural gas processing, and petrochemical production, prioritizing safety, honor, and commitment

Oil and Gas ๐Ÿ‡บ๐Ÿ‡ธ Houston 14,000 n/a
17
Oceaneeringoceaneering.com

Global technology company providing engineered services, products, and robotic solutions to offshore energy, defense, aerospace, and manufacturing industries worldwide

Oil and Gas ๐Ÿ‡บ๐Ÿ‡ธ Houston 13,838 1964
18
Tailored Brands, Inc.tailoredbrands.com

Company focuses on enhancing customer appearance and confidence for important moments, emphasizing inclusivity, integrity, teamwork, and continuous improvement.

Retail Apparel and Fashion ๐Ÿ‡บ๐Ÿ‡ธ Houston 11,474 n/a
19
Men's Wearhousemenswearhouse.com

They help people love how they look for important moments by offering tailored clothing, valuing customer satisfaction, teamwork, continuous improvement, diversity, and integrity.

Retail ๐Ÿ‡บ๐Ÿ‡ธ Houston 11,000 1973
20
Exproexpro.com

This company provides innovative technologies and high-quality data to support decision-making in energy operations, focusing on well construction and production

Oil and Gas ๐Ÿ‡บ๐Ÿ‡ธ Houston 8,906 1973
21
BMC Softwarebmc.com

It provides open, scalable solutions for complex IT challenges, helping organizations innovate and become Autonomous Digital Enterprises for future success.

IT Services and IT Consulting ๐Ÿ‡บ๐Ÿ‡ธ Houston 8,773 1980
22
Nabors Industriesnabors.com

Provider of advanced drilling rigs, automation, and engineering solutions for safe, efficient, and responsible energy production worldwide.

Oil and Gas ๐Ÿ‡บ๐Ÿ‡ธ Houston 7,492 1952
23
Stewart Titlestewart.com

Global provider of title services and personalized real estate solutions facilitating property ownership through specialized industry expertise and customized transaction support services.

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Houston 7,410 1893
24
OneSubseaonesubsea.slb.com

A leading subsea technology provider focused on innovation to improve asset performance, increase energy efficiency, reduce emissions, and accelerate the energy transition

Oil and Gas ๐Ÿ‡บ๐Ÿ‡ธ Houston 7,149 2023
25
Service Corporation Internationalsci-corp.com

Leading provider of death care products and services across North America with over 1,500 funeral service locations and 470 cemeteries

Individual and Family Services ๐Ÿ‡บ๐Ÿ‡ธ Houston 7,085 n/a
26
Westlakewestlake.com

Manufacturing and supplying petrochemicals, plastics, and building products globally, enhancing daily life through quality products and services.

Chemical Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Houston 6,574 1986
27
Noble Corporationnoblecorp.com

Leading offshore drilling contractor operating advanced fleet focused on ultra-deepwater and high-specification jackup drilling worldwide.

Oil and Gas ๐Ÿ‡บ๐Ÿ‡ธ Houston 6,572 1921
28
Seadrillseadrill.com

Deepwater drilling company providing modern fleet, experienced crews, advanced technologies to unlock oil and gas resources for various oil companies.

Oil and Gas ๐Ÿ‡บ๐Ÿ‡ธ Houston 5,896 2005
29
Hineshines.com

Global real estate investment, development, and property management firm with โ‚ฌ871B in assets across residential, logistics, retail, office, and mixed-use properties Commitment to net zero carbon by 2040

Real Estate ๐Ÿ‡บ๐Ÿ‡ธ Houston 5,802 1957
30
SEGseg.org

A global society promoting collaboration and thought leadership in applied geophysics through education, professional development, and community engagement worldwide

Non-profit Organizations ๐Ÿ‡บ๐Ÿ‡ธ Houston 5,476 1930

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How this list is built

Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 11, 2026.

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