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11 clean energy-focused startups join Greentown Houston

ready to grow

Meet the newest additions to Greentown Houston. Photo via Greentown Houston

There are some new faces at Houston's Greentown Labs location.

The climatetech incubator announced 22 new startup members between its two locations in Boston and Houston joining the facilities this quarter, and 11 have a local presence. Here are the new Houston additions, according to Greentown Labs:

  • A digital tech company, eVillage.io’s software manages the lifecycle of a clean energy project from the very beginning.
  • With its power-to-heat and power-to-power solutions, NOC Energy is focused on decarbonizing industrial heat to reduce emissions and cost.
  • AI company Pix Force uses computer vision, using machine learning, and deep learning techniques to automate the inspection of assets more safely, remotely, and efficiently.
  • Ardent is a process technology company that is developing membrane-based solutions for point-source carbon capture and other chemical separations. The startup is participating in Year 4 of the Carbon to Value Initiative.
  • Also a C2V Initiative Year 4 cohort member, CarbonBlue develops a chemical process that mineralizes and extracts CO2 from water, which then reabsorbs more atmospheric CO2.
  • Maple Materials develops an electrolysis process to convert CO2 into graphite and oxygen. The startup is a Greentown Go alum that’s returning for Year 4 of the C2V Initiative.
  • A C2V Initiative cohort member, Secant Fuel develops a one-step electrocatalytic process that converts flue gas into syngas.
  • Deep Anchor Solutions accelerates renewable energy project adoption, especially in floating offshore wind and other offshore sectors, with its innovative deeply embedded ring anchor.
  • Thiozen’s proprietary chemical waste-to-hydrogen cycle removes hydrogen sulfide from gas streams and generates zero-emission hydrogen.
  • TS-Nano is an energy technology company focused on reducing methane emissions from abandoned wellbores using its patented sealants, monitoring technologies, and blockchain carbon offsets—enabling its partners to achieve their ESG and decarbonization goals.
  • Seabound builds carbon-capture equipment for new and existing ships. The startup is participating in Year 4 of the C2V Initiative.
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Here's what student-founded startups are leaving CERAWeek with fresh funding. Photo courtesy of HETI

Houston clean tech startup pitch competition awards prizes at annual CERAWeek event

big winners

For the third year, the Greater Houston Partnership's Houston Energy Transition Institute hosted its startup pitch competition at CERAWeek by S&P Global. A dozen startups walked away with recognition — and three some with cash prizes.

HETI joined partners Rice Alliance for Technology and Entrepreneurship and TEX-E for the 2024 Energy Venture Day and Pitch Competition at CERAWeek on Wednesday, March 20. Forty-two companies, which have collectively raised over $265 million in investment funding already, pitched to judges. Nine startups won awards across three tracks.

TEX-E, a Texas nonprofit that supports student-founded upstarts, had five of its companies pitch and three winners walked away with monetary prizes. Teams that competed in the TEX-E Prize track, many of which come from Houston universities, include:

  • AirMax, University of Texas at Austin
  • BeadBlocker, University of Houston
  • Carvis Energy Solutions, Texas A&M University
  • Coflux Purification, Rice University
  • Solidec, Rice University

Solidec, which is working on a platform to produce chemicals from captured carbon, won first place and $25,000. The company also recently scored a $100,000 grant from Rice's One Small Step Grant program, as well as a voucher from the DOE. Coflux Purification, which has a technology that destroys PFAS in filtration, won second place and$15,000. The company also secured a One Small Step Grant to the tune of $80,000. AirMax, which focuses on optimizing sustainability for air conditioning equipment, won third place and $10,000.

Last year, Houston-based Helix Earth Technologies took home the top TEX-E price and $25,000 cash awards. The venture, founded by Rawand Rasheed and Brad Husick from Rice University, developed high-speed, high-efficiency filter systems derived from technology originating at NASA.

The rest of the companies that pitched competed for non-monetary awards. Here's what companies won:

  • Group A (CCUS, oilfield solutions, analytics and minerals):
    • First place: Ardent
    • Second place: Vaulted Deep
    • Third place: Mitico
  • Group B (batteries, renewables, water, and grid technology):
    • First place: SungreenH2
    • Second place: FeX Energy
    • Third place: Mercurius Biorefining
  • Group C (Mobility, Materials, and hydrogen solutions)
    • First place: Thiozen
    • Second place: Power2Hydrogen
    • Third place: Arolytics
  • People's choice: Decimetrix
HETI, Rice Alliance, and TEX-E celebrated the winners at a private reception on Wednesday evening.

———

This article originally ran on InnovationMap.

Next month, 96 startups will pitch at an annual event focused on the future of energy. Here's who will be there. Photo via rice.edu

Exclusive: Rice Alliance announces participants ahead of 20th annual energy symposium

where to be

Dozens of companies will be a part of an upcoming energy-focused conference at Rice University — from climate tech startups to must-see keynote speakers.

The 20th Annual Rice Alliance Energy Tech Venture Forum will take place on September 21 at Rice University’s Jones Graduate School of Business. Anyone who's interested in learning more about the major players in the low-carbon future in Houston and beyond should join the industry leaders, investors, and promising energy and cleantech startups in attendance.

This year's keynote speakers include Christina Karapataki, partner at Breakthrough Energy Ventures, the venture capital fund backed by Bill Gates; Scott Nyquist, vice chairman at Houston Energy Transition Initiative, founded by the Greater Houston Partnership; and Jeff Tillery, COO at Veriten.

Nearly 100 startups will also be pitching throughout the day, and at the end of the program, the most-promising companies — according to investors — will be revealed. See below for the 2023 selection of companies.

Presenting companies:

  • Element Resources
  • Eugenie AI
  • Flash H2 Synthesis from Waste Plastic at Zero Net Cost
  • Fluid Efficiency
  • Galatea Technologies
  • Heimdal
  • Impact Technology SystemsAS
  • INGU
  • Lithos
  • Luminescent
  • Mantel
  • Mars Materials
  • Microgrid Labs
  • Mirico
  • Mobilus Labs
  • Muon Vision
  • Nano Nuclear
  • NobleAI
  • Numat
  • Ourobio
  • Planckton Data Technologies
  • Polystyvert
  • Princeton NuEnergy
  • Protein Evolution
  • Qult Technologies
  • Sage Geosystems
  • Salient Predictions
  • Sawback Technologies
  • SHORELINE AI
  • Solidec
  • Spectral Sensor Solutions
  • Teren
  • Terradote
  • TexPower
  • Thiozen
  • Technology from the Lab of Dr. James Tour
  • Volexion
  • Xecta

CEA Demo Day:

  • Ayrton Energy
  • Carbix
  • CryoDesalination
  • Digital Carbon Bank
  • EarthEn
  • H Quest Vanguard
  • Highwood Emissions Management
  • Icarus RT
  • Khepra
  • Natrion
  • Oceanways
  • Relyion Energy
  • Triton Anchor
  • TROES

Office hours only:

  • 1s1 Energy
  • AKOS Energy
  • Aperta Systems
  • Atargis Energy
  • Ayas
  • C-Power
  • C-Quester
  • Carbon Loop
  • Deep Anchor Solutions
  • DG Matrix
  • Drishya AI Labs
  • Earthbound.ai
  • EarthBridge Energy
  • Enoverra
  • equipcast
  • ezNG Solutions
  • Feelit Technologies
  • FluxWorks
  • Forge
  • Horne Technologies
  • Imperium Technologies
  • LiCAP Technologies
  • Make My Day
  • Moblyze
  • MyPass Global
  • NovaSpark Energy
  • Octet Scientific
  • Perceptive Sensor Technologies
  • PetroBricks
  • Piersica
  • Poseidon Minerals
  • Predyct
  • RIvotto
  • Roboze
  • Talisea
  • ThermoLift Solutions
  • Trout Software
  • Tuebor Energy
  • Undesert Corporation
  • Viridos
  • Vroom Solar
  • Well Information Technologies
  • WellWorth
  • Zsense Systems
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ENGIE strikes clean energy deal with Houston biomanufacturer

energy match

ENGIE North America has signed an agreement with Aker BioMarine to supply around-the-clock, Texas-sourced clean energy to the Norwegian company's Houston manufacturing facility.

The deal is through ENGIE's 24/7 offering, which allows users to "match electricity consumption with local renewable generation on an hourly basis," rather than annual renewable energy matching, according to a news release.

Houston-based ENGIE NA will match 90% of Aker BioMarine's hourly electricity consumption at its Houston facility through renewable energy certificates that link electricity consumed to clean power generated. The renewable energy will be sourced largely from ENGIE's Impact Solar Project in Lamar County, Texas.

“Working with companies that have made sustainability a core part of their strategy is essential to delivering meaningful progress,” Taymur Bunkheila, regional VP and retail supply lead for ENGIE’s U.S. 24/7 product, said in the release. “By aligning energy solutions with operational needs, we can help organizations improve transparency, strengthen accountability, and deliver measurable outcomes. This agreement demonstrates how companies can take practical steps today while building toward long-term sustainability objectives.”

Aker BioMarine, which develops sustainable marine-based ingredients, processes the majority of its krill and algae products at its Houston facility. The company says the deal with ENGIE marks an important step in reducing the environmental footprint of its operations.

“Through this agreement, we expect to reduce our Scope 2 emissions, marking an important milestone in our broader sustainability journey,” Matts Johansen, CEO at Aker BioMarine, added in the release. “ENGIE has delivered an affordable, innovative and transparent solution that allows us to match our electricity consumption for our Houston manufacturing facility with renewable power generation. The transparent data ENGIE provides strengthens our climate reporting while helping us continue delivering high-quality products with a lower environmental footprint."

ENGIE has more than 11 gigawatts of renewable energy projects in operation or under construction in the U.S. and Canada. The company is targeting 95 gigawatts by 2030

ExxonMobil announces date to move legal headquarters to Texas

save the date

Energy giant Exxon Mobil Corp. has set a date to move its legal headquarters to Texas.

The Spring-based company announced this week that the redomiciliation from New Jersey to Texas is expected to be effective July 1. Exxon's board of directors unanimously recommended redomiciling in the Lone Star State in March, and shareholders approved the move to Texas at the company’s annual meeting in May.

As part of the move, ExxonMobil Holdings Corp. will replace Exxon Mobil Corp. of New Jersey and become the publicly traded parent company. Exxon reports that its shares will continue to trade on the New York Stock Exchange under the ticker symbol “XOM,” and that shareholders do not need to take action.

At the time of the recommendation, Exxon said the move would not affect business operations, management, strategy, assets or employee locations.

Exxon Chairman and CEO Darren Woods added that the redomiciliation was in part due to Texas' business-friendly environment and policies.

"Over the past several years, Texas has made a noticeable effort to embrace the business community. In doing so, it has created a policy and regulatory environment that can allow the company to maximize shareholder value,” Woods said in a news release. "Aligning our legal home with our operating home, in a state that understands our business and has a stake in the company’s success, is important.”

The Associated Press reports that about 30 percent of Exxon's employees work in Texas. Exxon's legal headquarters has been based in New Jersey since 1882, when it was Standard Oil Company.

Exxon moved its operational headquarters from Irving, Texas, to the Houston area in 2023.

Exxon was the highest-ranking Houston-area company on this year's Fortune 500 list, coming in at No. 9. Houston tied with Chicago for the second-most Fortune 500 headquarters on this year's list, with Texas leading the nation for the most Fortune 500 headquarters (57).

“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.”

Houston startups named to World Economic Forum cohort for carbon removal, clean technologies

top honor

Two Houston-based startups have been selected to join the World Economic Forum's Technology Pioneers community.

The two-year program aims to help mission-driven, early-stage start-ups scale their innovations through multi-stakeholder initiatives, co-creating partnerships and other gatherings for community members. One-hundred startups are selected each year from around the globe, this year hailing from 23 countries and working in AI, energy, space, biotech markets and more.

Cleantech startup Vaulted Deep was one of 11 energy and climate companies to be named to the cohort. Julia Reichelstein and Omar Abou-Sayed founded the company in 2023. Its technology injects excess organic waste underground to remove carbon dioxide from the atmosphere.

Last year, Vaulted Deep inked a 12-year deal with Microsoft to remove up to 4.9 million metric tons of carbon dioxide from the environment.

The startup has earned several accolades in recent years, including a No. 3 spot on Fast Company’s list of the World’s Most Innovative Companies of 2026. It was also recently named to market intelligence and advisory firm Cleantech Group's annual Global Cleantech 100 list for a second year in a row.

"Waste management is one of the world's great invisible infrastructure systems ... The need for new infrastructure is growing as disposal challenges become more complex and regulations evolve. Vaulted is building the first new disposal pathway for organic waste in decades by putting it deep underground, permanently," the company shared in a LinkedIn post. "This year, we're joining the World Economic Forum's 2026 Tech Pioneers alongside innovators working on the many interconnected challenges shaping our future."

Houston-based Venus Aerospace was also selected to join the cohort, along with six other spacetech companies. The company was founded in 2020 by Sassie and Andrew Duggleby.

The startup specializes in next-generation rocket engine propulsion as a cleaner alternative to traditional combustion engines. The company's rotating detonation rocket engine (RDRE) burns fuel more efficiently and completed a successful high-thrust test flight last year. Venus says it’s the only company in the world that makes a flight-proven, high-thrust RDRE with a “clear path to scaled production.”

"Frontier technologies matter most when they expand what people, industries, and nations can do," Sassie Duggleby, co-founder and CEO of Venus, said in a news release. "For Venus, RDRE does not just represent a more efficient engine. It is a foundation for faster movement, more capable space systems, and new forms of connectivity across the planet. Being named a Technology Pioneer validates the potential of this technology to help shape a future where distance is less limiting."

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