Clean energy leaders taking the stage at Houston Energy and Climate Week

expert voices

Here's who's speaking at Houston Energy and Climate Week. Photos courtesy and via company websites

Some of the biggest names in the clean energy scene will be sharing their expertise in Houston this week.

From leaders fresh off one of the industry's biggest IPOs to local organizers, here's who's speaking at promising panels and anchor events during Houston Energy and Climate Week—taking place now through Sept. 18. Visit each event's website for a full lineup.

Read more about Houston Energy and Climate Week and its programming in Energy Capital's event preview. Or learn more about the startups pitching at events throughout the week here.

Energy Solutions in a New Era Hosted by JERA & Mitsubishi Heavy Industries — Sept. 15 at the Ion

Mary Dhillon, strategy manager at Fervo Energy
Ricky Sakai, SVP of investment & business development at Mitsubishi Heavy Industries America
Daniel Padilla, strategy & business development lead at Emerald AI
Adrian Trömel, chief innovation officer / interim vice president for innovation at Rice University (moderator)
Shigeki Uchihashi, VP of strategy & corporate venturing at JERA Americas

Cypher Pilotathon and Startup Showcase — Sept. 15 at POST Houston

Nada Ahmed, co-founder and CRO of Energytech Cypher
Taylor Chapman, investment principal at New Climate Ventures
Jason Ethier, co-founder and CEO of Energytech Cypher
Sean Kelly, CEO of Amperon
Ionel Nechiti, investment director for Aramco Ventures
Hema Prapoo, global energy industry leader from Microsoft
Ishan Rao, VP of commercial at Syzygy Plasmonics

Greentown Climatetech Summit — Sept. 16 at Greentown Labs

Arne Ballantine, co-founder of Ohmium International
David Baldwin, partner at SCF Partners
Christopher Hanson, former chair of the U.S. Nuclear Regulatory Commission
Tim Latimer, CEO and co-founder of Fervo Energy
Georgina Campbell Flatter, CEO of Greentown Labs
Nicolaus Radford, CEO and co-founder of Persona AI
Prag Mishra, chief AI officer at Armada
Jeremy Pitts, managing director at Activate
Bobby Gallagher, CEO, CTO and co-founder of Deployable Energy
Jason Wells, chair, president and CEO of CenterPoint Energy
Eliecer Viamontes, CEO of Entergy Texas

Rice Alliance Energy Tech Venture Forum — Sept. 17 at Rice University’s Jones Graduate School of Business

Laurent Alteirac, enabling technology development manager at SLB
Kemal Anbarci, managing executive and general manager of venture capital at Chevron Technology Ventures
Sameer Bandhu, managing director of ventures and licensing at GE Vernova
Brad Burke, former associate vice president at Rice Office of Innovation and former executive director of Rice Alliance for Technology and Entrepreneurship at Rice University (moderator)
Andres Cabada, managing director at Halliburton Labs
Quennie Co, managing partner at Shell Ventures
Rob Crane, technology scouting & venturing manager at ExxonMobil
Ira Ehrenpreis, founder and managing partner at DBL Partners
Menachem Elimelech, director of Rice Center for Membrane Excellence (RiCeME) at Rice University
Brian Iversen, founder & managing partner at Cimbria Capital
Dustin Kinder, CEO of Maverick Water Group
Megan Lund, lead of venturing strategy & strategic partnerships at Woodside Energy
Sean Maher, vice president of investor relations & chief economist at Phillips 66
Robert Mellors, SUPERHOT program director at ARPA-E
John (JR) Reale, interim associate vice president for industry and new ventures at Rice University and executive director of Rice Alliance for Technology and Entrepreneurship at Rice University
Chad Seely, SVP of regulatory policy, general counsel, chief compliance officer, and corporate secretary at ERCOT
David Sholl, executive vice president for research and professor of chemical & biomolecular engineering at Rice University
Jim Sledzik, managing director of strategic venturing, North America, at Aramco Ventures

From Your Site Articles

Here’s what Houston-area companies made the Fortune Global 500, and where they ranked. Photo via Getty Images

Leading energy companies power Houston's presence on Fortune Global 500

world class

Nine Houston companies landed on the 2026 Fortune Global 500 list, which ranks the world's largest corporations by revenue for the 2025 fiscal year.

Houston's showing on the list was led by energy companies, with Spring’s ExxonMobil claiming the top local spot. Here’s what Houston-area companies made the list, and where they ranked:

No. 15 ExxonMobil
No. 36 Chevron
No. 61 Phillip 66
No. 159 Sysco
No. 243 ConocoPhillips
No. 292 Enterprise Products Partners
No. 343 Plains GP Holdings
No. 460 SLB
No. 481 Hewlett Packard Enterprise

After 12 years as No.1, Arkansas-based Walmart was replaced this year by Seattle-based Amazon in the top spot for 2026. Amazon achieved this by bringing in $700 billion in revenue in 2025, representing a 12 percent increase from the previous year.

"Across global business, we see again and again that the leaders who are winning are those who embrace change,” Alyson Shontell, Fortune's editor in chief and chief content officer, said in a news release. "Amazon has topped the Fortune Global 500, knocking Walmart off its pedestal. The company has continually reinvented itself across new businesses and bold bets—including a $200 billion capital commitment, largely to building its capacity for AI and cloud computing, in this year alone."

The U.S. has 141 companies on the 2026 Fortune Global 500 list, which is the most of any country. Companies in America generated $15.5 trillion in aggregate revenues, a 6 percent increase from the previous year.

The number of women CEOs at Fortune Global 500 companies reached a record of 34 top leaders, who represented 6.8 percent of CEOs of companies on the list.

Technology was the standout growth industry on this year’s list, with 38 companies earning revenues that grew 20 percent to about $4 trillion in 2025, with profits climbing 36 percent to $835 billion. The financial sector accounted for the largest share of companies on the list again, with 123 companies in that sector. The energy sector claimed the No. 2 industry spot with 77 companies making the list.

In June, the Fortune 500 list was released, and Texas led the United States with 57 Fortune 500 companies headquartered in the state, generating $2.8 trillion in combined revenue.

Houston is tied with Chicago for the second-most Fortune 500 headquarters. Photo via Getty Images

Houston lands 27 Fortune 500 headquarters, led by energy heavyweights

HQ leader

Editor's note: This article has been updated to correct the number of companies based in the Dallas-Fort Worth area.

Houston is a giant among U.S. hubs for corporate headquarters.

The 2026 Fortune 500 lists 27 companies based in the Houston area, with many energy companies claiming top spots. Houston ties with Chicago for the second-most Fortune 500 headquarters, preceded only by New York City (53). Dallas-Fort Worth is home to 24 Fortune 500 headquarters.

Texas leads the nation for Fortune 500 headquarters (57), with California in the No. 2 spot and New York at No. 3.

“Texas is the undisputed headquarters of headquarters,” Gov. Greg Abbott said in a news release. “The world’s leading businesses invest with confidence in Texas because of our welcoming business climate, predictable regulatory environment, and skilled and growing workforce. People and businesses are choosing Texas because Texas works.”

The 2026 Fortune 500 ranks the largest U.S. corporations based on revenue in fiscal year 2025.

Here’s a rundown of the 27 Fortune 500 companies based in the Houston area.

No. 9 ExxonMobil
No. 21 Chevron
No. 29 Phillips 66
No.55 Sysco
No. 75 ConocoPhillips
No. 89 Enterprise Products Partners
No. 103 Plains GP Holdings
No. 133 Hewlett Packard Enterprise
No. 149 NRG Energy
No. 157 Quanta Services
No. 164 Baker Hughes
No. 173 Occidental Petroleum
No. 179 Waste Management
No. 201 EOG Resources
No. 204 Group 1 Automotive
No. 207 Halliburton
No. 223 Cheniere Energy
No. 236 Corebridge Financial
No. 262 Targa Resources
No. 266 Kinder Morgan
No. 388 Westlake
No. 435 CenterPoint Energy
No. 438 APA
No. 440 Comfort Systems USA
No. 455 NOV
No. 488 KBR
No. 496 Coterra Energy. Oklahoma City, Oklahoma-based Devon Energy and Houston-based Coterra Energy merged in early May, with the combined company retaining the Devon Energy name and the Houston headquarters.

The Greater Houston Partnership notes the Houston area soon will welcome its 28th Fortune 500 company. Expand Energy (formerly Chesapeake Energy), appearing at No. 362 on the 2026 list, says it’s moving its headquarters from Oklahoma City to Spring this year.

As the natural gas producer prepares to relocate to Texas, it’s hunting for a new leader. Nick Dell’Osso stepped down as president and CEO earlier this year. Board Chairman Michael Wichterich is interim president and CEO.

Dell’Osso became president and CEO of Oklahoma City-based Gulfport Energy effective May 28.

Two investment firms have scooped up the majority stake in JET, a subsidiary of Phillips 66 with a rapidly growing EV charging network. Photo via Jet.de Facebook.

Investors close partial acquisition of Phillips 66 subsidiary with growing EV network

M&A activity

Energy Equation Partners, a London-based investment firm focused on clean energy companies, and New York-based Stonepeak have completed the acquisition of a 65 percent interest in JET Tankstellen Deutschland GmbH, a subsidiary of Houston oil and gas giant Phillips 66.

JET is one of the largest and most popular fuel retailers in Germany and Austria with a rapidly growing EV charging network, according to a news release. It also operates approximately 970 service stations, convenience stores and car washes.

“We are delighted to complete this acquisition and to partner with Stonepeak and Phillips 66 to take JET to the next level,” Javed Ahmed, managing partner of Energy Equation Partners, said in a news release. “This investment reflects EEP’s commitment to investing in established players in the energy sector who have the potential to make a meaningful impact on the energy transition, and we are excited to work alongside the entire JET team, including its dedicated service station operators, to realize this vision.”

The deal values JET at approximately $2.8 billion. Phillips 66 will retain a 35 percent non-operated interest in JET and received about $1.6 billion in pre-tax proceeds.

“Under Phillips 66’s ownership, JET has grown into one of the largest fuel retailers in Germany and Austria," Anthony Borreca, senior managing director and co-head of energy at Stonepeak, added in a news release. "We are excited to join forces with them, as well as Javed and the EEP team, who have long-standing experience investing in and operating retail fuel distribution and logistics globally, to support the next phase of JET’s growth.”

ConocoPhillips is one of the Houston companies on the new Forbes 2000 list. Photo via conocophillips.com

18 Houston-based energy companies land on Forbes Global 2000 list

Forbes 2000

More than 60 Texas-based companies appear on Forbes’ 2025 list of the world’s 2,000 biggest publicly traded companies, and nearly half come from Houston, the majority in the energy sector.

Among Texas companies whose stock is publicly traded, Spring-based ExxonMobil is the highest ranked at No. 13 globally.

Rounding out Texas’ top five are Houston-based Chevron (No. 30), Dallas-based AT&T (No. 35), Austin-based Oracle (No. 66), and Austin-based Tesla (No. 69).

Ranking first in the world is New York City-based J.P. Morgan Chase.

Forbes compiled this year’s Global 2000 list using data from FactSet Research to analyze the biggest public companies based on four metrics: sales, profit, assets, and market value.

“The annual Forbes Global 2000 list features the companies shaping today’s global markets and moving them worldwide,” said Hank Tucker, a staff writer at Forbes. “This year’s list showcases how despite a complex geopolitical landscape, globalization has continued to fuel decades of economic growth, with the world’s largest companies more than tripling in size across multiple measures in the past 20 years.”

The U.S. topped the list with 612 companies, followed by China with 317 and Japan with 180.

Here are the rest of the Texas-based companies in the Forbes 2000, grouped by the location of their headquarters and followed by their global ranking.

Houston area (those in the energy sector are in bold)

ConocoPhillips (No. 105)
Phillips 66 (No. 276)
SLB (No. 296)
EOG Resources (No. 297)
Occidental Petroleum (No. 302)
Waste Management (No. 351)
Kinder Morgan (No. 370)
Hewlett Packard Enterprise (No. 379)
Baker Hughes (No. 403)
Cheniere Energy (No. 415)
Corebridge Financial (No. 424)
Sysco (No. 448)
Halliburton (No. 641)
Targa Resources (No. 651)
NRG Energy (No. 667)
Quanta Services (No. 722)
CenterPoint Energy (No. 783)
Coterra Energy (No. 1,138)
Crown Castle International (No. 1,146)
Westlake Corp. (No. 1,199)
APA Corp. (No. 1,467)
Comfort Systems USA (No. 1,629)
Group 1 Automotive (No. 1,653)
Talen Energy (No. 1,854)
Prosperity Bancshares (No. 1,855)
NOV (No. 1,980)

Austin area

Dell Technologies (No. 183)
Flex (No. 887)
Digital Realty Trust (No. 1,063)
CrowdStrike (No. 1,490)

Dallas-Fort Worth

Caterpillar (No. 118)
Charles Schwab (No. 124)
McKesson (No. 195)
D.R. Horton (No. 365)
Texas Instruments (No. 374)
Vistra Energy (No. 437)
CBRE (No. 582)
Kimberly-Clark (No. 639)
Tenet Healthcare (No. 691)
American Airlines (No. 834)
Southwest Airlines (No. 844)
Atmos Energy (No. 1,025)
Builders FirstSource (No. 1,039)
Copart (No. 1,062)
Fluor (No. 1,153)
Jacobs Solutions (1,232)
Globe Life (1,285)
AECOM (No. 1,371)
Lennox International (No. 1,486)
HF Sinclair (No. 1,532)
Invitation Homes (No. 1,603)
Celanese (No. 1,845)
Tyler Technologies (No. 1,942)

San Antonio

Valero Energy (No. 397)
Cullen/Frost Bankers (No. 1,560)

Midland

Diamondback Energy (No. 471)
Permian Resources (No. 1,762)

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A version of this article originally appeared on CultureMap.com.

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

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

biggest companies

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).

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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Rice University spinouts named among 50 top cleantech companies to watch

green team

Two Rice University spinouts, Coflux Purification and DexMat, appear on a new list of the world’s 50 cleantech companies to watch.

Cleantech Group’s 2026 Cleantech 50 to Watch list recognizes early-stage companies “creating groundbreaking solutions to address some of the world’s most pressing environmental and sustainability challenges.”

Cleantech Group, a market research, consulting, and events company, selects the 50 honorees based on insights from analysts and early-stage innovators, along with public nominations.

Destroying “forever chemicals”

Coflux, founded in 2024, offers an onsite treatment system that captures and destroys manufactured “forever chemicals”—per- and polyfluoroalkyl substances—in water and wastewater. It’s a member of Greentown Houston.

Alec Ajnsztajn, CEO; Jeremy Daum, chief technology officer; and Dana Vazquez, chief commercial officer, co-founded Coflux. Ajnsztajn and Daum earned doctoral degrees from Rice, and Vazquez earned an MBA from the university.

Coflux spun out of Rice labs directed by professors Rafael Verduzco and Pulickel Ajayan.

Last year, Coflux received a $175,000 grant from the U.S. Food and Drug Administration’s National Institute of Food and Agriculture. The startup has also raised more than $500,000 in non-dilutive funding, including $80,000 awarded in 2024 by Rice’s One Small Step Grant program.

Promoting an alternative to copper

DexMat, founded in 2015, produces carbon nanotube products such as fibers, yarns, cables, and fabric. The company’s products address demand for materials that can reduce carbon emissions, according to CB Insights.

Its main product, Galvorn, is a copper alternative made of carbon nanotube fibers. CB Insights says Galvorn is engineered to be lighter and stronger than traditional conductive materials like carbon and steel. It’s used in industries such as energy, aerospace, defense, automotive, consumer electronics, and health care.

DexMat emerged from Matteo Pasquali’s Carbon Lab at Rice. Pasquali, co-founder of DexMat, co-invented the company’s technology with the late Nobel Prize-winning chemist Rick Smalley. Smalley was a professor of chemistry, physics, and astronomy at Rice.

Pasquali is a professor of chemical and biomolecular engineering, chemistry, materials science, and nanoengineering at Rice. He co-founded DexMat with Rice graduate Dmitri Tsentalovich, the company’s director of product innovation.

Earlier this year, DexMat raised $5 million in seed funding from Non Sibi Ventures, Governance Partners, Tailwind Futures, BetterWay, Capital Factory, and other investors. The company also secured $3 million in non-dilutive funding.

In 2023, DexMat raised $3 million in a pre-seed round led by Shell Ventures.

Stardust Power, Power Electronics expand to Houston and more top energy news

Trending News

Editor's note: October brings big updates for the energy transition sector, with two companies expanding to Houston and two more announcing major funding. Here are the five most-read stories published on EnergyCapital from September 30-October 15, 2026:

Lithium refiner expands into Houston with new Energy Corridor office

Battery-grade lithium carbonate manufacturer Stardust Power has expanded into Houston’s Energy Corridor, the company tells EnergyCapitalHTX. The company’s new office will serve as a project execution hub to support operations and planning for the company’s forthcoming lithium refinery in Muskogee, Oklahoma. The Greenwich, Connecticut-based, publicly traded company says the facility will be one of the largest lithium refining operations in the United States. The refinery is expected to have production capacity of up to 50,000 metric tons per year and seeks to address the critical shortage of U.S. lithium refining capacity. Continue reading.

Houston geothermal company picks Nevada site for commercial-scale project

Sage Geosystems, a Houston-based developer of geothermal power systems, has chosen a site in Nevada for its commercial-scale Project Vector facility. The company’s two-well enhanced geothermal system (EGS) will deliver around-the-clock geothermal heat to Ormat Technologies’ Blue Mountain geothermal power plant in Winnemucca, Nevada. The startup expects to begin drilling the first well later this year, with the first electricity to be generated in 2027 and full-scale production to start in 2028. Continue reading.

Houston carbon removal company secures $35M in financing

Houston-based Vaulted Deep, a waste management and carbon removal company, has announced a major $35 million debt facility from Italian investment bank Mediobanca to support its national expansion. U.K.-based market energy solutions CFP Energy arranged the deal, which is “the largest publicly disclosed U.S. commercial debt deal in durable carbon removal to be secured by long-term purchase contracts,” according to a news release from the companies. Continue reading.

Hertha Metals raises $133M Series A round, plans high-purity iron plant

Conroe-based Hertha Metals has closed a $133.65 million Series A round that includes a $65 million equity investment from the Pentagon. The startup uses a one-step process to convert iron into molten steel or high-purity iron. Khosla Ventures and Doerr Capital co-led the round, with participation from CEV, Pear Ventures, Gates Frontier, Niterra SUISO no MORI Fund, Toyota Ventures, and Siemens Financial Services. Continue reading.

European cleantech company breaks ground on Houston manufacturing site

Spanish renewable energy company Power Electronics broke ground on its new 53-acre Houston campus on Sept. 24. The new site is expected to create over 400 local jobs and deliver 40 gigawatts of production capacity per year. The company said that the campus is expected to be the largest manufacturing site for power conversion systems in the U.S. Power Electronics specializes in solar, energy storage, data centers and electrification technologies. Continue reading.

TotalEnergies expands solar joint venture with $1.2B portfolio in Texas, Ohio

solar expansion

TotalEnergies, a French company whose U.S. headquarters is in Houston, announced this month that it is expanding its renewable energy joint venture with New York-based investment firm KKR by adding 700 megawatts of utility-scale solar projects.

The deal will add three utility-scale solar assets in Texas and Ohio, which are expected to reach commercial operation by Q1 2027, according to a news release from the company. The portfolio is valued at $1.2 billion.

The 50/50 joint venture between TotalEnergies and KKR currently holds 1.4 gigawatts of renewable energy and will grow to 2.1 gigawatts.

The new deal is expected to close this year. Once completed, TotalEnergies will operate the assets. The electricity generated from the solar projects will be sold to third parties, the company reports.

The companies originally formed the joint venture about a year ago when TotalEnergies sold KKR a 50 percent stake in a North American solar portfolio valued at $1.25 billion. The deal originally included six utility-scale solar assets, primarily located in the U.S.

“TotalEnergies is a renewable energy industry leader globally, and we are thrilled to establish this joint venture with the TotalEnergies team to support their renewables business," Cecilio Velasco, managing director KKR, said in a release last year. “We have long been investors in renewables through our infrastructure platform, having committed more than $23 billion to date in energy transition investments. TotalEnergies’ North American solar portfolio is a great fit for us, representing high-quality renewable energy assets with long term contracts.”

TotalEnergies reports that by June 2026 it held more than 37 gigawatts of gross renewable power generation capacity. It aims to achieve over 100 terawatt-hours of net electricity production by 2030.

The company signed a major power purchase agreement with Google earlier this year. Through the deal, TotalEnergies will supply the tech giant with 1 gigawatt of solar power for its data centers in Texas over a 15-year span.

However, the company also recently redirected nearly $1 billion in capital away from wind energy projects and "decided to renounce offshore wind development in the United States." Read more here.

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