CERAWeek attendees identified the four energy tech companies to watch. Photo via Getty Images

Wondering what energy tech companies you should keep an eye on? Wonder no more.

As a part of 2021 CERAWeek by IHS Markit, the Rice Alliance for Technology and Entrepreneurship hosted a virtual pitch competition today featuring 20 companies in four sessions. Each entrepreneur had four minutes to pitch, and then a few more to take questions from industry experts.

"Of the companies here today, we've intentionally selected a diverse group," says Brad Burke, managing director of the Rice Alliance at the start of the event. "They range from companies looking for their seed funding to companies that have raised $20 million or more."

The following companies pitched at the event: Acoustic Wells, ALLY ENERGY, Bluefield Technologies, Cemvita Factory, Connectus Global, Damorphe, Ovopod Ltd., DrillDocs, GreenFire Energy, inerG, Locus Bio-Energy Solutions, Nesh, Pythias Analytics, REVOLUTION Turbine Technologies, Revterra, ROCSOLE, Senslytics, Subsea Micropiles, Syzygy Plasmonics, Transitional Energy, and Universal Subsea.

At the end of each session, attendees voted via Zoom poll on which startup had the most potential. According to the event attendees, the most promising energy tech companies are:

REVOLUTION Turbine Technologies

Asheville, North Carolina-based REVOLUTION Turbine Technologies, an inaugural Greentown Houston member company, is working to "put a green spin on power." The company's micro-Expansion Turbine System produces green power for digital oilfield and pipeline initiatives through the recovery of excess natural gas pressure.

"RTT's technology provides a scalable, clean energy source to reliably power digital oilfield and pipeline initiatives at a significantly low operating cost," says Christopher Bean, founder and CEO, in his presentation. "Never has it been more important to make production and pipeline operations greener, safer, and efficient."

Connectus Global

Connectus Global, based in Calgary, provides custom technology solutions that can increase productivity, profits, and competitiveness. Connectus' Real-Time Location System, or RTLS, uses Ultra-Wide Band for communication and triangulation while hosting a Radio Frequency Identification Device, which come in the form of badges, tags, and receivers.

"In our first year, we received $800,000 in revenue and are on track to hit our numbers — $3.6 million — at the end of this fiscal year," says Mike Anderson, CEO of the company, in his presentation." We have a global white labeling agreement with Honeywell and we make up about 75 percent of their digitized workforce management portfolio."

The company's U.S. office is located in Houston.

DrillDocs

Houston-based DrillDocs has created an automated drilling cuttings characterization service, called CleanSight, that supports an operator's understanding of their wellbore's state of stability and cleanness in real time.

"We're taking computer vision to the drilling rig," says Calvin Holt, CEO and co-founder at DrillDocs, in his presentation. "Now for the first time, drilling and geomechanics teams will have unique, real-time data to ascertain the well's condition."

Revterra

Revterra, a Houston-based company and inaugural Greentown Houston member company, is creating a flywheel energy storage system for long-duration grid-scale applications.

"For those of us in Texas, the power outages we experienced a couple weeks ago are a stark reminder that the stability and the resiliency of our electric grid should be a top priority as we transition to low-emission power sources," says Ben Jawdat, founder and CEO at Revterra, in his presentation. "Energy storage is a critical element in both grid stability and enabling our transition to sustainable energy."

Here's what not to miss at the first all-virtual CERAWeek by IHS Markit. Screenshot via virtual.ceraweek.com

5 can't-miss innovation events at CERAWeek featuring Houston speakers

where to be online

While usually hundreds of energy experts, C-level executives, diplomats, members of royal families, and more descend upon Houston for the the annual CERAWeek by IHS Markit conference, this year will be a little different. Canceled last year due to COVID-19, CERAWeek is returning — completely virtually.

The Agora track is back and focused on innovation within the energy sector. The Agora track's events — thought-provoking panels, intimate pods, and corporate-hosted "houses" — can be accessed through a virtual atrium.

Undoubtedly, many of the panels will have Houston representatives considering Houston's dominance in the industry, but here are five innovation-focused events you can't miss during CERAWeek that feature Houstonians.

Monday — New Horizons for Energy & Climate Research

The COVID-19 pandemic has made vivid and real the risks of an uncontrolled virus. Risks posed by climate change are also becoming more palpable every day. At the forefront of understanding these risks, universities are developing solutions by connecting science, engineering, business, and public policy disciplines. Along with industry and governments, universities are critical to developing affordable and sustainable solutions to meet the world's energy needs and achieve net-zero emission goals. Can the dual challenge of more energy and lower emissions be met? What is some of the most promising energy and climate research at universities? Beyond research, what are the roles and responsibilities of universities in the energy transition?

Featuring: Kenneth B. Medlock, III, James A. Baker, III, and Susan G. Baker Fellow In Energy And Resource Economics, Baker Institute and Senior Director, Center For Energy Studies at Rice University

Catch the panel at 1 pm on Monday, March 1. Learn more.

Tuesday — Conversations in Cleantech: Powering the energy transition

With renewables investment outperforming oil and gas investment for the first time ever in the middle of a pandemic, 2020 was a tipping point in the Energy Transition. Low oil prices intensified energy majors' attention on diversification and expansion into mature and emerging clean technologies such as battery storage, low-carbon hydrogen, and carbon removal technologies. Yet, the magnitude of the Energy Transition challenge requires an acceleration of strategic decisions on the technologies needed to make it happen, policy frameworks to promote public-private partnerships, and innovative investment schemes.

Three Cleantech leaders share their challenges, successes, and lessons learned at the forefront of the Energy Transition. What is their vision and strategy to accelerate lowering emissions and confronting climate change? Can companies develop clear strategies for cleantech investments that balance sustainability goals and corporate returns? What is the value of increasing leadership diversity for energy corporations? Can the Energy Transition be truly transformational without an inclusive workforce and a diverse leadership?

Featuring: Emily Reichert, CEO of Greentown Labs, which is opening a location in Houston this year.

The event takes place at 11:30 am on Tuesday, March 2. Learn more.

Wednesday — Rice Alliance Venture Day at CERAWeek

The Rice Alliance for Technology and Entrepreneurship pitch event will showcase 20 technology companies with new solutions for the energy industry. Each presentation will be followed by questions from a panel of industry experts.

Presenting Companies: Acoustic Wells, ALLY ENERGY, Bluefield Technologies, Cemvita Factory, Connectus Global, Damorphe, Ovopod Ltd., DrillDocs, GreenFire Energy, inerG, Locus Bio-Energy Solutions, Nesh, Pythias Analytics, REVOLUTION Turbine Technologies, Revterra, ROCSOLE, Senslytics, Subsea Micropiles, Syzygy Plasmonics, Transitional Energy, and Universal Subsea.

The event takes place at 9 am on Wednesday, March 3. Learn more.

Thursday — How Will the Energy Innovation Ecosystem Evolve?

Although the cleantech innovation ecosystem—research institutions, entrepreneurs, financiers, and support institutions—is diverse and productive, converting cleantech discoveries and research breakthroughs into commercially viable, transformative energy systems has proven difficult. With incumbent energy systems economically efficient and deeply entrenched, cleantech innovation faces a fundamental dilemma—the scale economies necessary to compete require a large customer base that does not yet exist. How is our clean energy innovation ecosystem equipped to be transformative? What needs to be strengthened? Is it profitable to focus on individual elements, or should we consider the system holistically, and reframe our expectations?

Featuring: Barbara Burger, vice president of innovation at Chevron and president at Chevron Technology Ventures

The event takes place at 7:30 am on Thursday, March 4. Learn more.

Friday — Cities: Managing crises & the future of energy

Houston is the capital of global energy and for the past four decades the home of CERAWeek. Mayor Sylvester Turner will share lessons from the city's experience with the pandemic, discuss leadership strategies during times of crisis, and explore Houston's evolving role in the new map of energy.

The event takes place at 8 am on Friday, March 5. Learn more.

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Houston brain health co. secures $6.5M for rare disease study

neuro funding

Houston-based Goldenrod Therapeutics, part of Fannin Partners' portfolio, has announced the initial close of a $6.5 million series seed preferred stock round.

The round was led by Ataxia Ventures and an affiliate of Fannin, according to a news release.

Goldenrod Therapeutics plans to use the funding to support manufacturing, formulation optimization, IND-enabling studies and a Phase I study of its drug to treat brain inflammation, known as 11h.

The study will consider how 11h, which blocks the enzyme PDE4, could treat Friedreich’s ataxia (FA), a rare genetic disease that affects movement, speech and balance. To date, other PDE4 inhibitors have proven to regulate neuroinflammation and neuronal signaling, but have had adverse gastrointestinal side effects or have not reached enough of the central nervous system, according to Goldenrod.

The company says its 11h is expected to have "broad applicability" with limited emetric side effects.

“Our 11h program is a next-generation, orally bioavailable, brain-penetrant PDE4 inhibitor, where researchers overcame longstanding limitations associated with earlier PDE4 inhibitors," Dr. Dev Chatterjee, CEO of Goldenrod, said in the news release. "We believe this creates the potential for a best-in-class therapy for Friedreich’s Ataxia and a potential foundation for development across multiple neurodegenerative and neuroinflammatory disorders.”

11h was first developed at the University of Nebraska Medical Center (UNeMed). Houston-based Fannin Partners in-licensed the product 2020 and landed SBIR Phase I funding to support its initial development for opioid use disorder soon after.

Goldenrod has also received funding to study 11h's effectiveness for multiple sclerosis, methamphetamine addiction and cocaine addiction.

Goldenrod says it is developing 11h to target a variety of neurological and inflammatory conditions, including Alzheimer's disease, multiple sclerosis, ALS, substance use disorders, Batten disease, pain and traumatic brain injury.

27 Houston companies make Fortune 500 for 2026, led by energy giants

Houston HQs

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.

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This article first appeared on EnergyCapitalHTX.com.