Houston-based energy companies have again held a sizable presence on the Fortune 500 ranking. Photo via Getty Images

Fourteen businesses with global or regional headquarters in the Houston area appear on Fortune’s new list of the world’s 500 biggest companies.

Oil and gas company Saudi Aramco, whose headquarters for the Americas is in Houston, leads the Houston-area pack. With annual revenue of $494.9 billion, it lands at No. 4 on the Fortune Global 500. Ahead of Saudi Aramco are U.S. retailers Walmart and Amazon, and Chinese electric company State Grid.

To put Saudi Aramco’s annual revenue in perspective, the total is slightly above the gross domestic product for the Philippines.

For the third year in a row, Saudi Aramco stands out as the most profitable member of the Fortune Global 500. The company racked up $121 billion in profit last year.

Overall, Saudi Aramco and 32 other petroleum refiners — many of them with a significant presence in the Houston area — made the Fortune Global 500.

“The Global 500 is the ultimate scorecard for business success. The aggregate revenue of the Fortune Global 500 in 2023 reached $41 trillion, a record level. That sum represents more than a third of global GDP — a sign of how much economic power is concentrated in these companies,” Scott DeCarlo, Fortune’s vice president of research, says in a news release.

Here’s the rundown of Fortune Global 500 companies with global or regional headquarters in the Houston area, including the ranking and annual revenue for each:

  • Saudi Aramco, No. 4, $494.9 billion, Americas headquarters in Houston
  • ExxonMobil, No. 12, $344.6 billion, global headquarters in Spring
  • Shell, No. 13, $323.2 billion; U.S. headquarters in Houston
  • TotalEnergies, No. 23, $218.9 billion, U.S. headquarters in Houston
  • BP, No. 25, $213 billion, U.S. headquarters in Houston
  • Chevron, No. 29, $200.9 billion, global headquarters relocating to Houston in 2024
  • Phillips 66, No. 52, $149.9 billion, global headquarters in Houston
  • Engie, No. 130, $89.3 billion, North American headquarters in Houston
  • Sysco, No. 163, $76.3 billion, global headquarters in Houston
  • ConocoPhillips, No. 235, $58.6 billion, global headquarters in Houston
  • Enterprise Products Partners, No. 303, $49.7 billion, global headquarters in Houston
  • Plains GP Holdings, No. 311, $48.7 billion, global headquarters in Houston
  • LyondellBasell, No. 368, $41.1 billion, global headquarters in Houston
  • SLB (formerly Schlumberger), No. 479, $33.1 billion, global headquarters in Houston

Fortune uses revenue figures for budget years ending on or before March 31, 2024, to rank the world’s largest companies.

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This article originally ran on EnergyCapital.

Business and government leaders in the Houston area hope the region can become a hub for CCS activity. Photo via Getty Images

3 businesses join Houston initiative for carbon capture and storage

seeing green

Three big businesses — Air Liquide, BASF, and Shell — have added their firepower to the effort to promote large-scale carbon capture and storage for the Houston area’s industrial ecosystem.

These companies join 11 others that in 2021 threw their support behind the initiative. Participants are evaluating how to use safe carbon capture and storage (CCS) technology at Houston-area facilities that provide energy, power generation, and advanced manufacturing for plastics, motor fuels, and packaging.

Other companies backing the CCS project are Calpine, Chevron, Dow, ExxonMobil, INEOS, Linde, LyondellBasell, Marathon Petroleum, NRG Energy, Phillips 66, and Valero.

Business and government leaders in the Houston area hope the region can become a hub for CCS activity.

“Large-scale carbon capture and storage in the Houston region will be a cornerstone for the world’s energy transition, and these companies’ efforts are crucial toward advancing CCS development to achieve broad scale commercial impact,” Charles McConnell, director of University of Houston’s Center for Carbon Management in Energy, says in a news release.

McConnell and others say CCS could help Houston and the rest of the U.S. net-zero goals while generating new jobs and protecting current jobs.

CCS involves capturing carbon dioxide from industrial activities that would otherwise be released into the atmosphere and then injecting it into deep underground geologic formations for secure and permanent storage. Carbon dioxide from industrial users in the Houston area could be stored in nearby onshore and offshore storage sites.

An analysis of U.S Department of Energy estimates shows the storage capacity along the Gulf Coast is large enough to store about 500 billion metric tons of carbon dioxide, which is equivalent to more than 130 years’ worth of industrial and power generation emissions in the United States, based on 2018 data.

“Carbon capture and storage is not a single technology, but rather a series of technologies and scientific breakthroughs that work in concert to achieve a profound outcome, one that will play a significant role in the future of energy and our planet,” says Gretchen Watkins, U.S. president of Shell. “In that spirit, it’s fitting this consortium combines CCS blueprints and ambitions to crystalize Houston’s reputation as the energy capital of the world while contributing to local and U.S. plans to help achieve net-zero emissions.”

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CultureMap Emails are Awesome

Who are Houston's top innovators? Nominate now for 2026 Houston Innovation Awards

Calling All Innovators

Calling all Houston innovators: The 2026 Houston Innovation Awards, presented by InnovationMap, return this fall to celebrate the best and brightest in the Houston innovation ecosystem right now.

We're asking you to nominate Houston's top innovators and startups for this year's awards. Nominations are open now through August 27 and can be made on behalf of yourself, your organization, and other influential leaders in the local innovation scene.

The annual awards program recognizes the most innovative individuals and companies in Houston across 10 prestigious categories.

This year's awards will honor the following categories:

  • Minority-founded Business, honoring an innovative startup founded or co-founded by BIPOC or LGBTQ+ representation.
  • Female-founded Business, honoring an innovative startup founded or co-founded by a woman.
  • Energy Transition Business, honoring an innovative startup providing a solution within renewables, climatetech, clean energy, alternative materials, circular economy, and beyond.
  • Health Tech Business, honoring an innovative startup within the health and medical technology sectors.
  • Deep Tech Business, honoring an innovative startup providing technology solutions based on substantial scientific or engineering challenges, including those in the AI, robotics, and space sectors.
  • Startup of the Year (People's Choice), honoring a startup celebrating a recent milestone or success. The winner will be selected by the community via an interactive voting experience.
  • Scaleup of the Year, honoring an innovative later-stage startup that's recently reached a significant milestone in company growth.
  • Incubator/Accelerator of the Year, honoring a local incubator or accelerator that is championing and fueling the growth of Houston startups.
  • Mentor of the Year, honoring an individual who dedicates their time and expertise to guide and support budding entrepreneurs.
  • Trailblazer, honoring an innovator who's made a lasting impact on the Houston innovation community.

You have three weeks to submit nominees, so don't delay — nominate today at this link or fill out the form below. Qualified nominees will receive a formal application to complete, which will be reviewed by our esteemed panel of judges to determine the finalists and winners.

More announcements about the 2026 Houston Innovation Awards are coming soon, including an introduction to this year's panel of judges. Interested in sponsoring the 2026 Houston Innovation Awards? Please contact sales@innovationmap.com.

KBR unveils name, branding for new government services spinoff

new identity

Houston-based KBR Inc.'s new Mission Technology Solutions unit officially has a name.

The previously announced government services spinoff, which until now has been nicknamed SpinCo, will now be known as Trinzic. The company said in a news release that the name was inspired by the word intrinsic, "reflecting essential, built-in capabilities and deep expertise operating in some of the world’s most complex and mission-critical environments."

New York-based firm Siegel + Gale developed the company's new brand. In addition to the new name, the company shares that its new logo will feature a stylized letter N, with brand colors in orange and gray.

“Trinzic represents who KBR Mission Tech has always been at our core: an essential partner bringing innovation and trusted execution to the missions that matter most,” Stuart Bradie, KBR President and CEO, said in the release. “The new Trinzic brand represents both our strong heritage and the tremendous opportunity ahead. Our teams aim to deliver solutions that address some of the world’s most critical national priorities every day, and this new identity captures the purpose-driven culture and mission focus that we expect to continue to define the company moving forward.”

KBR expects the spin-off to be completed in January 2027. At that time, Trinzic will operate as an independent, publicly traded company that will focus on technology and engineering services for the space and national security sectors.

KBR will remain a separate publicly traded company that will focus on sustainable technology and services to support the energy transition. KBR first announced the spinoff plans in October 2025.

Last month, KBR announced two C-suite hires for Trinzic, or what was then known as SpinCo.

Michael LaRouche will serve as Trinzic's inaugural president and CEO. LaRouche is currently CEO of Serco North America, a Virginia-based government services contractor. Nicholas Veasey, current CFO of Virginia-based MAG Aerospace, was named Trinzic's CFO. Bradie will remain chairman, president and CEO of KBR.

Rice lands $19 million grant to build AI-driven quantum materials lab

Quantum Boost

Rice University has received a $19.9 million award from the National Science Foundation to increase the production of quantum and electronic materials by using a combination of artificial intelligence, cloud-based labs and robotics.

The four-year project will create a remote and automated research platform that aims to accelerate discovery and the testing process, according to Rice. The aptly titled project, "Revolutionizing AI-Driven Autonomous Experimentation for Next-Generation Semiconductor Synthesis” (READINESS), will be led by Rice materials scientist Jun Lou, who serves as principal investigator. SUNY Polytechnic Institute and the University of Texas at Austin will collaborate with Rice on the project.

At first, READINESS will focus on two-dimensional materials, oxide semiconductors and diamond thin films that can support emerging technologies, like quantum devices.

READINESS is one of 20 projects selected for the NSF's Programmable Cloud Laboratories Test Bed initiative, which aims to provide more U.S. researchers with access to automated scientific tools.

Additionally, the project aligns with the Department of Energy’s Genesis Mission, which recently selected four projects from Houston universities and companies, including two from Rice. The national initiative aims to unite government, industry, academia and philanthropy to lead to breakthroughs in energy, scientific discovery and national security.

READINESS will offer more advanced lab systems remotely via a cloud interface to assist startups, other research groups, and companies that don’t have the resources, staffing or equipment to produce quantum materials and advanced electronics. READINESS will also allow researchers to simulate experiments via virtual experiments or digital twins before they conduct the physical experiment.

Rice says this will be particularly useful in quantum materials research, which is often met with barriers— like the adjustments of chemical composition, gas flow, pressure, and temperature—that can change the properties of a material.

“This project will give researchers access to capabilities that have traditionally been available only in a handful of laboratories,” David Sholl, executive vice president for research at Rice, said in a news release. “By lowering those barriers, READINESS can accelerate discovery and expand who can participate in cutting-edge materials research.”

Additionally, the project’s AI aspect will offer recommendations for new tests, recognize safety limits and analyze results to assist researchers.

“Responsible AI should complement researchers’ capabilities rather than replace their judgment,” Luay Nakhleh, Dean of Rice’s George R. Brown School of Engineering and Computing, added in the release. “READINESS embodies this principle by combining automated systems with transparency, safeguards and human oversight at critical decision points.”

READINESS’ lab will be based out of Rice’s Ralph S. O’Connor Building for Engineering and Science. Partner sites will also contribute equipment, expertise and workforce development programs, according to Rice.

Ultimately, READINESS aims to elevate the speed, reliability and reproducibility of experiments, and to promote access to automated scientific tools for U.S. researchers.

“Our goal is to create a laboratory that researchers from across the country can use to produce advanced electronic and quantum materials on demand,” Lou added in the release. “By integrating robotics, AI and digital twins, we aim to learn from every experiment and shorten the pathway from scientific discovery to practical technology.”