Houston earns No. 3 spot among cities with most Fortune 500 headquarters

biggest companies

Twenty-six Houston-area companies landed on the latest Fortune 500 list. Photo via Getty Images

Last year, 23 Houston-area companies landed on the Fortune 500 list. Fortune bases the list on revenue that a public or private company earns during its 2024 budget year.

On the Fortune 500 list for 2025, Spring-based ExxonMobil remained the highest-ranked company based in the Houston area as well as in Texas, sitting at No. 8 nationally. That’s down one spot from its No. 7 perch on the 2024 list. During its 2024 budget year, ExxonMobil reported revenue of $349.6 billion, up from $344.6 billion the previous year.

Here are the rankings and 2024 revenue for the 25 other Houston-area companies that made this year’s Fortune 500:

No. 16 Chevron, $202.8 billion
No. 28 Phillips 66, $145.5 billion
No. 56 Sysco, $78.8 billion
No. 75 Conoco Phillips, $56.9 million
No. 78 Enterprise Products Partners, $56.2 billion
No. 92 Plains GP Holdings, $50 billion
No. 143 Hewlett-Packard Enterprise, $30.1 billion
No. 153 NRG Energy, $28.1 billion
No. 155 Baker Hughes, $27.8 billion
No. 159 Occidental Petroleum, $26.9 billion
No. 183 EOG Resources, $23.7 billion
No. 184 Quanta Services, $23.7 billion
No. 194 Halliburton, $23 billion
No. 197 Waste Management, $22.1 billion
No. 214 Group 1 Automotive, $19.9 billion
No. 224 Corebridge Financial, $18.8 billion
No. 256 Targa Resources, $16.4 billion
No. 275 Cheniere Energy, $15.7 billion
No. 289 Kinder Morgan, $15.1 billion
No. 345 Westlake Corp., $12.1 billion
No. 422 APA, $9.7 billion
No. 443 NOV, $8.9 billion
No. 450 CenterPoint Energy, $8.6 billion
No. 474 Par Pacific Holdings, $8 billion
No. 480 KBR Inc., $7.7 billion

Nationally, the top five Fortune 500 companies are:

Walmart
Amazon
UnitedHealth Group
Apple
CVS Health

“The Fortune 500 is a literal roadmap to the rise and fall of markets, a reliable playbook of the world's most important regions, services, and products, and an indispensable roster of those companies' dynamic leaders,” Anastasia Nyrkovskaya, CEO of Fortune Media, said in a news release.

Among the states, Texas ranks second for the number of Fortune 500 headquarters (54), preceded by California (58) and followed by New York (53).

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A new joint venture will work on four projects supplying 5 gigawatts of power from combined-cycle power plants for the ERCOT and PJM Interconnection grids. Photo via Getty Images.

NRG Energy forms joint venture to build power plants for ERCOT and AI-driven demand

teaming up

Houston-based power provider NRG Energy Inc. has formed a joint venture with two other companies to meet escalating demand for electricity to fuel the rise of data centers and the evolution of generative AI.

NRG’s partners in the joint venture are GE Vernova, a provider of renewable energy equipment and services, and TIC – The Industrial Co., a subsidiary of construction and engineering company Kiewit.

“The growing demand for electricity in part due to GenAI and the buildup of data centers means we need to form new, innovative partnerships to quickly increase America’s dispatchable generation,” Robert Gaudette, head of NRG Business and Wholesale Operations, said in a news release. “Working together, these three industry leaders are committed to executing with speed and excellence to meet our customers’ generation needs.”

Initially, the joint venture will work on four projects supplying 5 gigawatts of power from combined-cycle power plants, which uses a combination of natural gas and steam turbines that produce additional electricity from natural gas waste. Electricity from these projects will be produced for power grids operated by the Electric Reliability Council of Texas (ERCOT) and PJM Interconnection. The projects are scheduled to come online from 2029 through 2032.

The joint venture says the model it’s developing for these four projects is “replicable and scalable,” with the potential for expansion across the U.S.

The company is also developing a new 721-megawatt natural gas combined-cycle unit at its Cedar Bayou plant in Baytown, Texas. Read more here.

NRG and Renew Home expect the virtual power plant program to arrive for Texas customers in spring of 2025. Photo via Getty Images

NRG Energy partners to launch Texas' largest AI-powered virtual power plant

dream team

NRG Energy is partnering with a virtual power plant company to distribute hundreds of thousands of VPP-enabled smart thermostats by 2035 in an overall effort to improve the Texas grid's resiliency and help households manage and lower their energy costs.

Renew Home will create a nearly 1 gigawatt AI-powered VPP, which will be enabled by Google Cloud technology and be the largest AI-enabled VPP in Texas. NRG and Renew Home expect the VPP program to arrive for Texas customers in spring of 2025.

A 1 gigawatt VPP can deliver a capacity that is equivalent to 200,000 homes during peak demand times. NRG and Renew Home plan to offer Vivint and Nest smart thermostats, which will include professional installation at no cost to eligible customers as part of the goal to build the VPP.

The advanced thermostats can make automatic HVAC adjustments that can help customers shift their energy use to times when electricity is less expensive, and cleaner. The program will combine smart devices, energy intelligence, and AI. The companies expect to add devices like batteries and electric vehicles to the VPP.

“By partnering with industry leaders like Renew Home and Google Cloud, we are set to deliver cutting-edge, AI-driven solutions that will bolster grid resilience and contribute to a more sustainable future,” Rasesh Patel, president of NRG Consumer, says in a news release. “We are excited about the transformative impact this collaboration will have on our customers and the broader energy landscape.”

NRG will also be utilizing the multi-year technology transformation with Google Cloud. NRG will be able to better predict weather conditions, forecast wind and solar generation output, and create predictive pricing models through the use of Google Cloud's data, analytics, and AI technology.

"As we move toward a more sustainable future and face increasing energy demands, Google Cloud recognizes the importance of partnering with innovators like NRG and Renew Home to help transform the consumer energy experience with AI and the best of Google Cloud,” Michael Clark, president - North America at Google Cloud, adds. "Our collaboration will help Texas meet its growing energy demands, and also empower consumers to get more from their energy, smart home, and essential home services in the future.”

Texas reached an unprecedented demand surge of 85 gigawatts in 2023.

“As rapid population growth and weather events create new challenges for meeting demand in ERCOT, VPPs can deliver a reliable, flexible and dispatchable energy resource,” Renew Home CEO Ben Brown continues. “NRG’s commitment to creating a more resilient and sustainable energy future while also making electricity bills more affordable makes them an ideal partner for co-developing this unique VPP program. This initiative raises the bar for future-proofing our electricity infrastructure and delivering cost savings to customers.”

Dallas-based CBRE has acquired NRG's renewable advisory group. Photo via NRG.com

Houston-based NRG Energy exits renewables group to Texas real estate company

M&A Moves

NRG Energy, headquartered in Houston, has sold its renewable advisory group to Dallas-based commercial real estate services powerhouse CBRE. Financial terms weren’t disclosed.

The advisory group, led by Miro Sutton, brokers renewable energy deals, such as community- and utility-scale transactions, and advises clients on handling tax credits for renewable energy projects. The team works primarily with Fortune 500 companies.

Sutton joined CBRE as head of renewables and energy after overseeing the NRG advisory group. The group has arranged deals involving more than 5,000 megawatts of clean power.

“CBRE targeted this specific advisory team because of their unique approach to renewable procurement and expansive coverage of renewable offerings. They have enabled hundreds of projects and thousands of [megawatts] through their innovative contract structures that reduce risk and enhance economics for their customers,” Robert Bernard, CBRE’s chief sustainability officer, told Utility Dive.

In a news release, Bernard says market demand for renewable energy continues to grow rapidly as companies seek to meet their net-zero goals and other energy-related commitments.

“However, integrating renewable energy into a company’s real estate can be a complex process,” Bernard adds. “This acquisition enables CBRE to offer a wide range of energy-related sustainability services to all our clients, both occupiers and investors, and help them simplify the complexity associated with planning, sourcing and managing renewable energy.”

Here's how Direct Energy hopes to grow its renewable energy clientbase. Photo via Getty Images

Houston company incentivizes renewable energy plans

big perk

It pays to be a responsible energy consumer.

Direct Energy will be offering two-years of Amazon Prime for its new customers. The On Us promotion is part of an ongoing partnership with Amazon since 2018, and will include a fixed-rate electricity plan or a fixed-rate electricity plan with free nights or free weekends, and will be 100 percent renewable.

The On Us electricity suite will include free electricity between 9 p.m. and 9 a.m., free power from Friday night at 6 p.m. until midnight on Sunday, and a fixed rate for 24 months. Customers who already have Amazon Prime will receive a $15 gift card. The plan incentivizes new customers to join and receive the Prime membership, which is a $139 value.

“With this newest offer, Direct Energy makes it easy and seamless for customers to find the right electricity plan for their needs, with the added savings, convenience, and entertainment with Amazon Prime—all in a single membership,” Britany Keller, marketing lead at Direct Energy, says in a news release.

“Our customers can begin enjoying Prime membership as quickly as a day after they start service on an eligible plan with Direct Energy," she continues. "We are thrilled to continue to bring our customers new ways to enjoy Amazon Prime through our suite of ‘On Us’ plans.”

Direct Energy reports that it utilizes renewable energy from green sources like wind, geothermal, hydro, and solar energy to help reduce the carbon footprint.

Originally founded in Canada, Direct Energy is a subsidiary of Houston-based NRG Energy, which has recently announced its own sustainability advancements to NRG Park.

Companies like ExxonMobil, NRG, and Shell play an important role in helping the world transition to renewable energy sources. Photo via htxenergytransition.org

3 Houston companies leading the way towards a low-carbon future

the view from heti

As the world population makes a jump towards more than 9 billion people by 2050, the race to net-zero is more important than ever. An increase in population means an increase in the demand for energy. With everything from greenhouse gases, pollution, carbon and nitrogen deposition putting a strain on planet Earth, community and business leaders are making commitments to advance the energy transition.

Companies like ExxonMobil, NRG, and Shell play an important role in helping the world transition to renewable energy sources. Here are three ways that these energy companies are working towards an energy abundant, low-carbon future.

NRG Energy

Headquarted in Houston, NRG Energy is the leading integrated power company in the U.S. In 2022, NRG introduced a new Sustainability and Resiliency Impact Study as part of Harris County’s Climate Action Plan to reduce the city’s carbon emissions by 40% by 2030. The initiative includes $34 million in park upgrades and is expected to save $54 million.

That same year, Evolve Houston, a nonprofit working to accelerate electric vehicle adoption within the Greater Houston area, launched an e-mobility microgrant initiative funded by Evolve Corporate Catalysts, General Motors and bp. With five founding members, among them being NRG Energy and Shell, the goal of the initiative is to improve regional air quality and reduce greenhouse gas emissions in the Greater Houston area.

At the top of 2023, Reliant Energy and NRG launched the Simple Solar Sell Back electricity plan for Texans aimed at providing solar panels to local homes for lower electricity bills.

Shell

On a mission to improve their own operations, Shell is addressing energy efficiency over time and capturing or offsetting unavoidable greenhouse gas emissions. Headquartered in London. Shell is on a mission to become a net-zero emissions energy business by 2050. In 2022, the British multinational company invested $6 million to create the Prairie View A&M Shell Nature-Based Solutions Research Program, funded through the company’s Projects & Technology organization dedicated to funding research to develop new technology solutions.

In March of 2022, Shell gifted the University of Houston $10 million to bolster the institution’s efforts to establish the Energy Transition Institute which focuses on the production and use of reliable, affordable and cleaner energy for all. The company also launched the residential power brand Shell Energy offering 100% renewable electricity plans.

ExxonMobil

ExxonMobil is one of the world’s largest publicly traded international oil and gas companies. In 2021, the multinational oil and gas corporation pledged to invest more than $15 million in solutions to lower greenhouse gas emissions initiatives across six years. As a part of their approach to improve air quality, ExxonMobil is working to:

Understand the composition and extent of our emissions
Meet or exceed environmental regulations
Reduce air emissions to minimize potential impacts on local communities
Monitor the science and health standards related to air quality

Throughout the years, plastics have become an essential component of products, packaging, construction, transportation, electronics and more. While plastics are durable, lightweight and cheap, they also emit 3.4% of global greenhouse gas emissions. Late last year, the major corporation announced the successful startup of one of the largest advanced recycling facilities in North America. Located in Baytown, Texas, the recycling facility uses proprietary technology to break down raw materials for new products and is expected to have nearly 1 billion pounds of annual advanced recycling capacity by the end of 2026.

According to their 2023 Advancing Climate Action Progress Report released early this year, the corporation plans to reduce greenhouse gas emissions through 2030.

From resolving power grid issues to developing renewable energy technologies, Houston energy companies are powering today to empower the future.

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This article originally ran on the Greater Houston Partnership's Houston Energy Transition Initiative blog. HETI exists to support Houston's future as an energy leader. For more information about the Houston Energy Transition Initiative, EnergyCapitalHTX's presenting sponsor, visit htxenergytransition.org.

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Houston's Rhythm Energy expands nationally with clean power acquisition

power deal

Houston-based Rhythm Energy Inc. has acquired Inspire Clean Energy for an undisclosed amount. The deal allows Rhythm to immediately scale outside of Texas and into the Northeast, Midwest and mid-Atlantic regions, according to a release from the company.

Inspire offers subscription-based renewable electricity plans to customers in Pennsylvania, New York, New Jersey, Massachusetts, Ohio, Delaware, Illinois, Maryland, and Washington, D.C. By combining forces, Rhythm will now be one of the largest independent green-energy retailers in the country.

“Adding Inspire to the Rhythm family gives us the geographic reach to serve millions of new customers with the highly rated customer experience Texans already enjoy,” PJ Popovic, CEO of Rhythm, said in the release. “Together we become one of the largest independent green-energy retailers in the country and can roll out innovations like our PowerShift Time-of-Use plan and device-enabled demand-response programs that put customers fully in control of their energy costs.”

Rhythm was founded by Popovic in 2020 and offers 100 percent renewable energy plans using solar power, wind power and other renewable power sources.

In addition to scaling geographically, the acquisition will "(marry) Rhythm's data-driven technology with Inspire's successful subscription model." Rhythm also plans to upgrade its digital tools and provide more advanced services to help lower clean energy costs, according to the release.

Popovic spoke with EnergyCapital in 2023 about where he thinks renewables fit into Texas’s energy consumption. Read more here.

Fervo Energy lands $200 million in capital for new geothermal project

fresh funding

Houston-based Fervo Energy, a producer of geothermal power, has secured $205.6 million in capital to help finance its geothermal project in southern Utah.

The money will go toward the first and second phases of Cape Station, a geothermal energy plant being developed in Beaver County, Utah. Beaver County is roughly an equal distance between Salt Lake City and Las Vegas.

The $205.6 million in capital came from three sources:

$100 million in equity from Breakthrough Energy Catalyst, a Kirkland, Washington-based platform that invests in emissions-reducing projects.
$60 million addition to Fervo’s existing loan from Mercuria, a Swiss energy and commodities trader. The revolving loan now totals $100 million.
$45.6 million in additional bridge debt financing from XRL-ALC, an affiliate of Irvington, New York-based X-Caliber Rural Capital. X-Caliber is a USDA-approved lender. The initial bridge loan was $100 million.

The first phase of Cape Station will supply 100 megawatts of carbon-free electricity to the power grid starting next year. Another 400 megawatts of capacity is supposed to go online by 2028. Fervo has permission to expand Cape Station’s capacity to as much as 2 gigawatts. On an annual basis, 2 gigawatts can supply enough electricity to power about 1.4 million homes.

“These investments demonstrate what we’ve known all along: Fervo’s combination of technical excellence, commercial readiness, and market opportunity makes us a natural partner for serious energy capital. The confidence our investors have in Fervo and in the Cape asset affirms that next-generation geothermal is ready to play a defining role in America’s energy future,” David Ulrey, Fervo’s CFO, said in a news release.

ExxonMobil tops Fortune 500 list and more Houston energy news to know

Trending News

Editor's note: It's time to look back at the biggest energy transition news for the first half of June 2025. Here are the five most-read EnergyCapital stories from June 1-13:

1. Houston earns No. 3 spot among cities with most Fortune 500 headquarters

Twenty-six Houston-area companies landed on the latest Fortune 500 list. Photo via Getty Images

Houston maintained its No. 3 status this year among U.S. metro areas with the most Fortune 500 headquarters. Fortune magazine tallied 26 Fortune 500 headquarters in the Houston area, behind only the New York City area (62) and the Chicago area (30). On the Fortune 500 list for 2025, Spring-based ExxonMobil remained the highest-ranked company based in the Houston area as well as in Texas, sitting at No. 8 nationally. Continue reading.

2. Tech entrepreneur turned climate investor is on a mission to monetize carbon removal

Yao Huang is the guest on the latest episode of the Energy Tech Startups Podcast. Courtesy photo

A seasoned tech entrepreneur turned climate investor, Yao Huang brings sharp clarity to one of the biggest challenges in climate innovation: how do we fund and scale technologies that remove carbon without relying on goodwill or government subsidies? In this episode of the Energy Tech Startups Podcast, Yao sits down for a wide-ranging conversation that redefines how we think about decarbonization. Continue reading.

3. Houston students take home top prizes at DOE wind energy competition

Rice Wind Energy had a strong showing at the DOE's 2025 Collegiate Wind Competition. Photo courtesy Rice University.

The student-led Rice Wind Energy team clinched second place overall at the U.S. Department of Energy’s 2025 Collegiate Wind Competition (CWC), which challenges students nationwide to design and build wind turbines, develop wind energy projects and engage in public outreach to promote renewable energy. Continue reading.

4. Houston biotech company continues to expand in Brazil with new research partner

Cemvita has partnered with Brazilian sustainable research institution REMA. Photo courtesy of Cemvita

Houston biotech company Cemvita has announced a strategic collaboration with Brazilian sustainable research institution REMA. The move aims to promote Cemvita’s platform for evaluating and testing carbon waste streams as feedstocks for producing sustainable oil. Continue reading.

5. 6 Houston energy transition events to attend in June 2025

Meet the newest members of Greentown Labs at Transition on Tap. Photo via Greentown Labs

June has arrived, and with it come more must-attend events in the energy transition sector. Mark your calendar today for these conferences, symposiums, summits, expos, and more. Continue reading.

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