Houston energy giants rank high on new corporate startup activity report

startup support

Eight Houston-area energy employers ranked on StartupBlink's new Corporate Startup Activity Index 2025. Photo via Getty Images

Eight major players in Houston’s energy industry rank among the world’s top 20 energy companies for corporate startup activity.

The inaugural Corporate Startup Activity Index 2025, published by StartupBlink, ranks global corporations by industry. The eight Houston-area employers fall into the index’s energy and environment category.

Researchers from StartupBlink, an innovation research platform, scored more than 370 companies based on three factors: corporate involvement in startup activity, startup success and ecosystem integration.

The eight Houston-area energy employers that landed in the energy and environment category’s top 20 are:

  • No. 3 BP. Score: 13.547. U.S. headquarters in Houston.
  • No. 5 Saudi Aramco. Score: 7.405. Americas headquarters in Houston.
  • No. 7 Eni. Score: 6.255. Headquarters of Eni U.S. Operating Co. in Houston.
  • No. 8 Shell. Score: 6.217. U.S. headquarters in Houston.
  • No. 11 Occidental Petroleum. Score: 5.347. Global headquarters in Houston.
  • No. 15 Engie. Score: 3.352. North American headquarters in Houston.
  • No. 17 Repsol. Score: 2.980. U.S. headquarters for oil and gas operations in The Woodlands.
  • No. 19 Chevron. Score: 2.017. Global headquarters in Houston.

“Building a startup is hard, and navigating corporate innovation can be just as complex. This ranking is a step toward making the connection between startups and corporations more transparent, enabling startups and corporations to collaborate more effectively for mutual success,” said Eli David Rokah, CEO of StartupBlink.

Salesforce topped the global index with a score of 380.090, followed by Intel, Google, Qualcomm, and Comcast.

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Utility Global’s technology enables reduction of greenhouse gas emissions along with generation of low-carbon fuels and chemicals. Photo courtesy of Utility Global

Houston clean energy company secures $53M series C investment

big raise

Houston-based Utility Global, a maker of decarbonization-focused gas production technology, has raised $53 million in an ongoing series C round.

Among the participants in the round are Canada’s Ontario Power Generation Pension Plan, the XCarb Innovation Fund operated by Luxembourg-based steel company ArcelorMittal, Houston-based investment firm Ara Partners, and Saudi Aramco’s investment arm.

Also, Utility Global and ArcelorMittal have agreed to develop at least one decarbonization facility at an ArcelorMittal steel plant.

The latest infusion of cash will support the rollout of Utility Global’s eXERO technology, including establishment of the company’s first commercial facilities in 2026.

“With the successful completion of its demonstration program at a commercial steel facility resulting in the first hydrogen ever produced from blast furnace off-gasses in a single reactor, the company has shifted to commercial deployments,” Utility Global says in a news release.

Utility Global’s technology enables reduction of greenhouse gas emissions along with generation of low-carbon fuels and chemicals.

“Our eXERO solution is the first of its kind to convert process gasses into clean hydrogen in a single reactor, onsite, in a cost-effective manner that extends the life of existing customer assets and processes while providing significant emissions reductions,” says Claus Nussgruber, CEO of Utility Global.

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This article originally ran on EnergyCapital.

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

Houston companies score big on annual Fortune 500 ranking

by the numbers

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.

Five companies with connections to Houston have made it on this year’s 100 most influential companies by Time magazine. Photo via Getty Images

Houston businesses score spots on prestigious list of most influential companies

leading the pack

Five companies with strong ties to Houston have been named among this year’s 100 most influential companies by Time magazine.

The five companies are:

  • South Korea’s Hanwha Group, whose Hanwha Power Systems Americas subsidiary is in Houston. Hanwha, known as the “Lockheed Martin of Asia,” was praised for winning approval last year from the American Bureau of Shipping for the world’s first large-scale, carbon-free liquefied natural gas (LNG) vessel.
  • Houston-based Intuitive Machines. In February, the company’s Odysseus spacecraft became the first commercial spacecraft to land on the moon. The feat also marked the first U.S. landing on the moon since 1972.
  • Saudi Aramco, whose Americas headquarters is in Houston. Time cited Saudi Aramco’s dominance in the global oil market as a $1.9 billion “giant.”
  • Germany-based ThyssenKrupp Nucera, whose U.S. headquarters is in Houston. The company builds alkaline water electrolyzers to power steel mills and other fossil-fuel-dependent industrial sites.
  • United Airlines, which operates a hub at George Bush Intercontinental Airport. Chicago-based United was lauded for funding startups that help produce sustainable aviation fuel.

To come up with the fourth annual list, Time solicited nominations and polled in-house contributors and correspondents, along with external experts. Editors at Time then evaluated each company based on factors such as impact, innovation, ambition, and success.

“The result is a diverse group of 100 businesses helping chart an essential path forward,” the magazine says.

In a news release, Time’s editor in chief, Sam Jacobs, says the list of 100 companies “is more than an index of business success.”

“It is an argument for what business influence looks like in 2024,” Jacobs adds. “At a time when leadership in other sectors is battered, surveys suggest that many look to corporate leaders first for direction …. Each show us how companies can provide new models and new inspiration for the future of humanity.”

A new ranking looks at the Houston companies with the most patents granted in 2022. Photo via Getty Images

These are the Houston companies with the most patents granted last year

by the numbers

Two major players in Houston’s energy industry are also major players in the patent arena.

A new ranking from the analytics arm of patent law firm Harrity & Harrity puts Saudi Aramco, whose North American headquarters is in Houston, and Halliburton, whose global headquarters is in Houston, puts them in a tie for the number of U.S. patents with 963 patents received in 2022. Saudi Aramco and Halliburton now share the title of Houston’s patent king.

Saudi Aramco saw a 12 percent rise in patents granted in 2022 compared with 2021, according to Harrity & Harrity’s Patent 300 report, while Halliburton experienced a 5 percent jump. Each company tied for 44th place among the top 300 U.S. patient recipients in 2022.

According to the report, Samsung Electronics (8,513 patents) knocked IBM off its longtime pedestal as the No. 1 recipient of U.S. patents. IBM (4,743 patents) now holds the No. 2 position.

Many of Aramco’s U.S. patents come from its R&D centers in Houston, Boston, and Detroit. The Houston R&D hub opened in 2014 and underwent an expansion three years later.

Aramco, a Saudi Arabia-based supplier of oil and natural gas, also generates patents through academic partnerships, such as the one it established last year with Rice University’s Carbon Hub. Aramco has committed $10 million over five years to the carbon initiative.

“While patents are a leading indicator of innovation, the ultimate goal is to create value through the development of solutions that help to address a particular need,” Aramco says. “Such results are often only possible with significant upfront investments, and patents make it possible to recoup these costs and potentially generate additional revenue through commercialization.”

Last year, Aramco boasted that it ranked first in the oil and gas industry for U.S. patents (864) granted in 2021. Until 2011, Aramco had received only 100 U.S. patents over a 78-year span.

“Many of the patents are for innovations Aramco uses itself for competitive advantage, although they can also be licensed to others, creating extra value for the company,” Jamil Bagawi, then the company’s chief engineer, wrote in 2021.

Halliburton also has ramped up its patenting efforts in recent years.

According to Houston law firm Yetter Coleman, those efforts kicked into high gear after Halliburton lost a fracking patent lawsuit to Tomball-based BJ Services, which is now out of business. In 2003, a Houston jury awarded $98 million in damages to BJ in the case, and Halliburton had to stop selling the system that allegedly infringed on BJ’s patent.

In the five years before the verdict, Halliburton averaged 142 patent awards a year, according to Yetter Coleman. The law firm reported in 2013 that Halliburton subsequently averaged 234 patents a year.

Today, of course, Halliburton has far exceeded those numbers. And it vigorously defends its growing patent portfolio. In September 2022, for instance, three subsidiaries of the oilfield services giant filed two lawsuits against Houston-based rival U.S. Well Services alleging infringement of 14 Halliburton patents.

IAM, a website that reports about the intellectual property industry, noted that when Halliburton sued U.S. Well Services, “IP professionals in the oil and gas industry may well have reached for the popcorn. Battles of this magnitude rarely break out in their slice of the patent world.”

Halliburton and Aramco may be the goliaths in Houston’s patent world, but they’re not the only local organizations to appear on the Patent 300 list for 2022. Other Houston-area companies that made the cut are:

  • Spring-based Hewlett Packard Enterprise, No. 84. The tech company received 511 U.S. patents in 2022, down 4 percent from the previous year.
  • Houston-based SLB (Schlumberger), No. 117. The oilfield services company received 372 U.S. patents in 2022, down 14 percent from the previous year.
  • Houston-based Baker Hughes, No. 123. The oilfield services company received 350 U.S. patents in 2022, down 11 percent from the previous year.
  • ExxonMobil, No. 156. The oil and gas company received 281 U.S. patents in 2022, down 8 percent from the previous year. It is in the process of moving its headquarters from Irving to Spring.
  • United Imaging Healthcare, No. 253. The Chinese healthcare equipment company, whose North American headquarters is in Houston, received 175 U.S. patents in 2022, up 31 percent from the previous year.
Jim Sledzik joins the Houston Innovators Podcast to discuss corporate venture, Houston's role in the energy transition, and more. Photo courtesy of Aramco

Houston corporate investor on why Houston is poised to lead the energy transition

HOUSTON INNOVATORS PODCAST EPISODE 145

When it comes to Houston's potential to lead the energy transition, Jim Sledzik, North American managing director of Saudi Aramco Energy Ventures, says it's a no-brainer.

"We understand the energy business — we understand size and scale. And the size and scale of the challenges in front of us to get to net zero is enormous,” he says on this week's episode of the Houston Innovators podcast. “The basics are here. We just need to tap into the talent and experience."

Over the past decade, Saudi Aramco Energy Ventures has invested $320 million into 33 portfolio companies in the United States. Sledzik, who's worked in various energy services roles around the world before entering in to investment, explains that the corporate venture model is ideal for scaling big technology — and fast.

“When you’re using the venture model in a corporate setting, you have the company and the balance sheet behind you, which brings different benefits to companies you’re investing in,” he says. “These entrepreneurs who are looking to figure out how to deploy technology at scale becomes the real interesting item. All entrepreneurs want to grow — and they want to grow fast."

Scaling fast is risky, but big corporates — like Aramco — can help address the risks by providing a foothold in the market, a place to roll out the technology, and more.

“With corporate venture, you can bring the assets and the application of those technologies, and you can work to scale it in a manner that’s somewhat derisked,” Sledzik says on the show. “In corporate venture capital, you have other levers in which to pull to add value to the entrepreneurs you’re investing in. The private side brings different values.”

Earlier this year, Aramco announced a partnership with the Ion, representing its dedication to the Houston innovation ecosystem. Sledzik says Aramco being named a founding partner at the Ion opens the door to more collisions with Houston entrepreneurs. Starting later this month, Sledzik and his team will host office hours every other Friday.

"Ion is the place where you can find those collisions,” he says. “You just never know when serendipity is going to be created.”

He shares more about the types of technology Aramco is looking for and his advice to energy tech entrepreneurs on the podcast. Listen to the interview below — or wherever you stream your podcasts — and subscribe for weekly episodes.


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7+ can't-miss Houston business and innovation events in June 2026

where to be

Editor's note: The FIFA World Cup comes to Houston this month, joined by major energy conferences and a lineup of fan-favorite, recurring events. Here’s what not to miss and how to register. Please note: this article may be updated to add more events.


June 1-4 — CLEANPOWER 2026 Conference and Exhibition

CLEANPOWER unites policymakers, experts, and corporate leaders to solve the challenges that none can solve alone. This must-attend, four-day conference is packed with cutting-edge discussions about wind, solar, storage, and transmission; dealmaking; networking; and fun.

This event begins June 1 at the George R. Brown Convention Center. Register here.

June 2 — Humans of Healthcare

Houston Methodist Center for Innovation will present its quarterly speaker series, Humans of Healthcare. The series will feature a panel of experts who will share about their career paths and discuss the nuances of the health care industry. This month's session will focus on today’s nursing landscape, the industry’s expectations of nurses and what career paths are possible in the field.

The event is Tuesday, June 2, from 5-6:30 p.m. at the Ion. Register here.

June 9 — Greentown Go Make Kickoff

Head to the Ion to celebrate the Greentown Go Make 2026 cohort. The open-innovation program with Shell Catalysts & Technologies and Technip Energies focuses on catalytic solutions for industrial decarbonization and the energy transition. Hear pitches from the founders and network with a select group of startups while enjoying food and drink.

This event is Tuesday, June 9, from 5:30-8 p.m. Register here.

June 9-10 — Texas Brain Economy Summit

The Center for Houston’s Future and UTMB are bringing the Texas Brain Economy Summit back to Houston this summer to continue to position the region as a global leader in brain health. Expect to hear from leaders of global institutions, including the World Economic Forum, U.S. Chamber of Commerce, McKinsey Health Institute, Global Brain Economy Initiative, Davos Alzheimer’s Collaborative, Business Collaborative for Brain Health (UsAgainstAlzheimer’s), Rice University, Memorial Hermann, MD Anderson and many others. Read InnovationMap's full preview of the event here.

This event begins Tuesday, June 9. Purchase tickets here.

June 10 — MIT Future of Healthcare Technology Forum

The MIT Club of South Texas will host an in-person forum to explore how innovation, government and policy are changing the healthcare industry. The event will feature MIT alumni and Houston healthcare leaders, including Dr. Tim Boone, dean of the Texas A&M School of Engineering Medicine; Cynthia Reinhart-King, chair of bioengineering at Rice University; Dr. Tony Lin, CEO and chairman emeritus of Kelsey-Seybold Clinic; and others.

This event is Wednesday, June 10, from 5:15-8:30 p.m. at the TAMU EnMed Building. Register here.

June 11 — Goals & Gigawatts: Houston Energy & Climate Week The Power of & Kickoff Party

Come watch the Mexico City FIFA opening match while celebrating energy and innovation at the Goals & Gigawatts Kickoff Party. The event will feature food, drinks, and a showcase on Houston Energy & Climate Week. Learn what to expect and how to get involved in HECW before closing the night with a DJ and karaoke.

This event is Thursday, June 11, from 1:30-6:30 p.m. Find more information here.

June 16-17 — Energy Projects Conference & Expo

The Energy Projects Conference & Expo (EPC Show) is the largest event in North America for professionals working at the heart of major energy projects. The essential event for engineering, construction, commissioning, operations and maintenance across multiple energy sectors brings together five leading conferences under one roof. Conference subjects span LNG exporting, hydrogen and ammonia, midstream, petrochem and refining, and sustainable aviation fuels.

This event begins June 16 at George R. Brown Convention Center. Register here.

June 25 – NASA Tech Talk

Every fourth Thursday of the month, NASA experts, including longtime engineer Montgomery Goforth, present on technology development challenges NASA’s Johnson Space Center and the larger aerospace community are facing, and how they can be leveraged by Houston’s innovation community. Stick around after for drinks and networking at Second Draught.

This event is Thursday, June 25, from 6-7 p.m. at the Ion. Register here.

Houston researchers report promising first in-human trial for implantable cancer therapy

cancer breakthrough

When it comes to cancer remedies, the treatment can be as challenging for the body as its cause. But what if immunotherapy could be localized? That’s precisely what a Houston team may soon make a reality.

Rice University researchers, in partnership with MD Anderson Cancer Center, recently published their findings from the first in-human trial of an implantable cancer-fighting treatment in the journal Clinical Cancer Research. The paper details testing of AVB-001, encapsulated cells engineered to release interleukin-2 (IL-2)—a naturally occurring signaling protein that boosts immunity—in the peritoneal cavities of 14 patients. The goal is to avoid the toxicity usually experienced with less targeted treatments, as well as find a solution to IL-2s’ abbreviated half-lives.

“Traditional IL-2 therapy has shown potent antitumor activity, but its clinical use has been limited by severe side effects and delivery challenges,” Omid Veiseh, director of the Rice Biotech Launch Pad, professor of bioengineering at Rice and a senior author on the study, said in a press release. “This platform allows us to localize and sustain cytokine exposure directly where tumors reside while minimizing systemic toxicity.”

Serous ovarian carcinoma is especially well-suited to the use of AVB-001 because it tends to spread throughout the abdomen. After a minimally invasive laparoscopic procedure, patients implanted with the cells were noted to tolerate the treatment well. Half of the enrolled patients’ cancer was stabilized, with several among them reporting extended signs of benefit. No maximum tolerated dose was reached and there were no life-threatening events tied to the study.

If that sounds like less-than-earth-shaking results, this is only the beginning. The capsules were implanted for about one week because IL-2 activity drops off after that. The researchers now know that further testing should include either higher levels, repeated doses, or a combination thereof, in order to create stronger advances.

The team has already made early headway on this next step. Preclinical studies in nonhuman primates were not only tolerated well, but without added toxicity, the apes had consistent pharmacological effects.

“This is a foundational step,” Veiseh explained. “We now have evidence that the platform is safe, biologically active and potentially scalable. The next phase is optimizing dosing and exploring combination therapies to unlock its full clinical potential.”

The combination would also include a checkpoint inhibitor, which might improve AVB-001’s tumor-fighting power. “What is exciting is that we are not just delivering a drug, we are programming a microenvironment,” added Dr. Amir Jazaeri, professor of gynecologic oncology at MD Anderson, member of the Rice Biotech Launch Pad’s clinical advisory board and a senior author on the study. “This opens the door to combination strategies that could amplify immune responses in ways that have not been feasible before.”

5 must-read innovation headlines: Pharma giant considers Houston hub + more

Trending news

Editor's note: With May coming to a close, it's time to look back at the biggest innovation headlines for the second half of the month. Major moves were made in May, with NuScale Power entering the market, Persona AI inking a deal with Under Armour, and a pharma giant considering Houston for its next manufacturing hub. Here are the most-read InnovationMap stories published May 15-29, 2026:

1. Pharma giant considers Houston for $1 billion manufacturing campus

Another pharmaceutical giant is considering Houston’s Generation Park for a manufacturing hub. According to a recent filing with the Texas Jobs, Energy, Technology and Innovation (JETI) program, Bristol Myers Squibb Co. is considering the northeast Houston management district for a new $1 billion multi-modal pharmaceutical manufacturing campus.

2. Modular nuclear reactor co. NuScale Power moves into Houston market

The nuclear energy renaissance continues in Texas with an announcement by NuScale Power. The Oregon-based provider of proprietary and innovative advanced small modular reactor (SMR) nuclear technology announced in April it would be opening office space in Houston’s CityCentre.

3. Persona AI teams with Under Armour to protect next-gen robots

Houston-based Persona AI has cemented a partnership with sportswear manufacturer Under Armour to provide materials to protect future robots operating in dangerous conditions. Through the partnership, Persona AI and Under Armour will launch a research initiative to explore whether advanced performance textiles can improve the durability and resilience of humanoid robots operating in harsh industrial environments.

4. Houston quantum energy chip startup emerges from stealth with $12M round

Houston-based Casimir has emerged from stealth with a $12 million seed round to commercialize its quantum energy chip. The round was led by Austin-based Scout Ventures. Lavrock Ventures, Cottonwood Technology, Capital Factory, American Deep Tech, and Tim Draper of Draper Associates also participated in the round. The oversubscribed round exceeded the company’s original $8 million target.

5. Global summit spotlights Houston's growing role in brain health, innovation

The Center for Houston’s Future and UTMB are bringing the Texas Brain Economy Summit back to Houston this summer to continue to position the region as a global leader in brain health. The summit, held June 9-10 at the Texas Medical Center's Helix Park, will bring together more than 500 executives, researchers, policymakers and innovators from around the world to discuss the global brain economy.

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