Tim Latimer and Sean Maher are some of the headliners for this fall's major clean energy events. Photos courtesy

Two Houston energy institutions will host their signature events this September and have named industry leaders as their keynote speakers.

The Rice Alliance Energy Tech Venture Forum and Greentown Lab's Climatetech Summit kick off Sept. 16. The events are part of Houston Energy and Climate Startup Week and Houston Energy and Climate Week.

The two-day Energy Tech Venture Forum will bring together climatech startups and professionals from around the world to hear pitches, participate in one-on-one office hours and connect with energy innovators.

Sean Maher, chief economist at Phillips 66, will open the forum with a keynote address on the macroeconomic forces shaping the energy industry. Maher also serves as vice president of investor relations at Phillips 66. He previously launched Third Gear Investments, a Houston-based energy investment firm.

Ira Ehrenpreis, founder and managing partner of DBL Partner, which manages more than $1 billion of capital and invests in companies driving social change, will present the keynote on the second day of the forum, Sept. 17. Ehrenpreis is a board member of Tesla and an investor of SpaceX. He will share insights on commercializing breakthrough technologies and what investors are looking for in today's energy innovations.

Applications for the Energy Tech Venture Forum close July 17. Register for the event here.

Fresh off a landmark IPO, Tim Latimer, co-founder and CEO of Houston-based Fervo Energy, will present the keynote at Greentown's Climatetech Summit. Latimer was recently named one of Fast Company's 2026 Visionaries of the Year.

He will be joined by Houston-based SCF Partners' David Baldwin, who will moderate the discussion. The conversation will focus on the timing of Fervo's IPO, what Latimer would have done differently at the early stages of the business, and why the company chose Houston as its headquarters.

The Climatetech Summit will bring together philanthropists, executives and innovators in the energy transition space. Greentown member startups will also present their pitches at the event. Learn more and secure tickets here.

Ten climatetech startups were named most-promising at this annual Rice Alliance Energy Tech Venture Forum. Photo courtesy Rice Alliance.

Rice Alliance Energy Tech Venture Forum names most-promising startups

big winners

Investors at the Rice Alliance Energy Tech Venture Forum have named the 10 most-promising startups among the group of 100 clean tech companies participating in the event.

The 22nd annual event was held yesterday, Sept. 18, at Rice University’s Jones Graduate School of Business and was part of the second Houston Energy and Climate Startup Week.

The most-promising startups will receive $7,000 in in-kind legal services from Baker Botts.

The 10 most-promising companies included:

  • Houston-based Xplorobot, which has developed laser gas imaging technology for the first handheld methane detection device approved by the EPA as an alternative test method
  • Seattle-based Badwater Alchemy, a desalination company that uses nano materials to purify saline water at a fraction of the cost of traditional methods
  • San Francisco-based Ammobia, which is developing a clean ammonia production process
  • Illinois-based Celadyne Technologies, which is building hydrogen for industrial decarbonization with durable and efficient fuel cells and electrolyzers
  • Massachusetts-based MacroCycle Technologies, which converts plastic waste in the form of bottles, food trays and polyester textiles into virgin-grade mPET resin
  • Massachusetts-based AtoMe, which uses nano-ceramics to develop ultra-durable metals for 3D printing
  • Colorado-based Advanced Thermovoltaic Systems (ATS) Energy, a renewable energy semiconductor manufacturing company
  • North Carolina-based Lukera Energy, which is converting waste methane into high-value fuel
  • Midland, Texas-based AI Driller, a company that uses AI and machine learning to enable remote operations and provide historical drilling data for survey management, anti-collision monitoring and iob reporting
  • New York-based Fast Metals Inc., which has developed a chemical process to extract valuable metals from complex toxic mine tailings that is capable of producing iron, aluminum, scandium, titanium and other rare earth elements using industrial waste and waste CO2 as inputs

Arculus Solutions won the People's Choice Award. The New Jersey-based company retrofits natural gas pipelines for safe hydrogen transportation. It also won Track A: Hydrogen, Fuel Cells, Buildings, Water, & Other Energy Solutions at the Energy Venture Day and Pitch Competition during CERAWeek earlier this year.

The 100 energy technology ventures selected to participate in the forum were named earlier this year. See the full list here.

Dr. Faisal N. Masud, medical director of critical care at Houston Methodist and a champion for sustainability efforts. Courtesy photo

Houston Methodist leader on the push for sustainable health care and new local event

Q&A

Every industry can play a role in the energy transition, and Houston Methodist is leading the charge in the health care sector.

Culminating at this week’s inaugural Green ICU Conference, part of Houston Energy and Climate Startup Week, the health care system has spent the last three years taking a closer look at its environmental footprint—and showing other hospital systems and medical organizations how they too can make simple changes to reduce emissions.

The event, held tomorrow, Sept. 17, at TMC Helix Park, will bring together health care professionals, industry leaders, policymakers and innovators to explore solutions for building a more sustainable healthcare system.

In an interview with EnergyCapital, Dr. Faisal N. Masud, medical director of critical care at Houston Methodist and a champion for sustainability efforts across the system, shares the inspiration behind the event and what attendees can expect to take away.

Tell us about how the Green ICU Conference came to be.

Houston Methodist’s inaugural Green ICU conference is about three years in the making. It originated because Houston Methodist recognized the significant impact health care has on sustainability and the lack of similar initiatives in the U.S.

The Center for Critical Care at Houston Methodist launched a sustainability-focused ICU initiative, published a roadmap and became involved in international efforts to develop guidelines that many other organizations now use. Our work led to the creation of the first Green ICU Collaborative in the country, and the Green ICU Conference was established to share best practices and address the global impact of critical care on the environment.

What were some of the biggest takeaways from the collaborative, and how are they represented in this new event?

Through the Green ICU Collaborative, we’ve seen that health care professionals can make a significant impact on sustainability through simple, practical changes, and many solutions can be implemented without major costs or compromising patient care. Additionally, there’s a strong link between environmental stewardship and patient safety and quality. These lessons will be represented in the new Green ICU Conference by showcasing easy-to-adopt best practices, emphasizing the importance of sustainability in daily health care operations, and fostering a sense of shared responsibility among attendees to improve both patient outcomes and environmental impact.

Why are ICUs considered to be such carbon hot spots?

ICUs are considered carbon hot spots because they care for the sickest patients, requiring intensive therapies, numerous medications and a large amount of equipment, such as ventilators and pumps. This makes them the most resource- and energy-intensive areas in a hospital. A single day in the ICU can have a greenhouse gas impact equivalent to driving a car 1,000 kilometers.

The U.S. health care sector is responsible for approximately 8.5 percent of greenhouse gas emissions, and hospitals are the second-most energy-intensive commercial buildings in the country. With the Texas Medical Center being in the heart of Houston, it’s critical that health care organizations play a role in this area.

That’s why the Center for Critical Care launched a system-wide Green ICU Initiative with the Houston Methodist Office of Sustainability to help reduce our carbon impact and waste while continuing to provide unparalleled patient care. Innovation is part of our culture, and that extends into our sustainability efforts. Houston Methodist’s Green ICU initiative is the first-of-its-kind in the U.S.

What efforts has Houston Methodist taken to cut emissions?

The first step to cutting emissions is measuring an organization’s carbon footprint to determine the best path forward. Houston Methodist’s Office of Sustainability has aggregated two years of baseline emissions data pending third-party validation. The hospital has taken several steps to cut emissions, including implementing composting programs, installing solar panels, improving energy utilization and participating in global plastic recycling initiatives. These efforts are part of a broader commitment led by our Office of Sustainability to reduce the hospital’s environmental footprint.

Tell us a little more about the event. Who should attend? What do you expect to be some of the highlights?

The Green ICU Conference, taking place during Houston Energy and Climate Week, is focused on health care sustainability, bringing together health care professionals, engineers, experts and anyone interested in reducing health care’s environmental impact. With participants and speakers from six countries, the conference brings together leading experts who aim to raise awareness, share best practices and offer practical, easy-to-adopt solutions for making health care more sustainable.

Highlights include perspectives from leading voices in health care sustainability, real-world examples of successful sustainability initiatives and opportunities for networking and collaboration. Anyone interested in health care, sustainability,or making a positive impact in their community should consider attending.

And, because of increasing interest, we’ve opened up the opportunity for attendees to join virtually at no cost or in person.

What do you hope attendees take away? What are your major goals for the event?

The main goals of hosting the Green ICU Conference for the first time are to raise awareness about the environmental impact of health care; engage and empower attendees to implement easy, practical sustainability solutions; and foster a sense of shared community and responsibility.

I hope attendees leave the event feeling motivated and equipped to make meaningful changes in their own practices, whether that’s improving patient care, supporting their colleagues, or leaving their organization and environment in a better place for future generations.

Houston Energy and Climate Startup Week returns Sept. 15-19. Photo via rice.edu

8+ can't-miss events at Houston Energy and Climate Startup Week 2025

where to be

Editor's note: This article may be updated to include additional events.

The second annual Houston Energy and Climate Startup Week is less than a month away—and the calendar of events is taking shape.

The series of panels, happy hours and pitch days will take place Sept. 15-19. The Ion District will host many of the week's events.

Here are the details on some of the can't-miss events of the week:

Houston Energy & Climate Startup Week Kickoff Panel and Block Party

Join fellow innovators, founders, investors and energy leaders at this kick-off event hosted by The Ion and HETI, which will feature brief welcome remarks, a panel discussion and networking, followed by a block party on the Ion Plaza.

This event is Monday, Sept. 15, at 4 p.m. at The Ion. Register here.

Energytech Nexus Pilotathon

Grab breakfast and take in keynotes and panels by leaders from New Climate Ventures, V1 Climate, Halliburton, Energy Tech Nexus and many others. Then hear pitches during the Pilotathon, which targets startups ready to implement pilot projects within six to 12 months.

This event is Tuesday, Sept. 16, from 8 a.m.-5 p.m. at GreenStreet. Get tickets here.

Meet the Activate Houston Cohort 2025 Fellows

Meet Activate's latest cohort, which was named this summer, and also learn more about its 2024 group.

This event is Tuesday, Sept. 16, at 5 p.m. at the Ion. Register here.

New Climate Ventures Afterparty

Enjoy music, networking and carbon-negative spirits at Axelrad. Houston startups Quaise Energy, Solidec, Dimensional Energy, Rheom Materials, and Active Surfaces will also be on-site.

This event is Tuesday, Sept. 16, from 6:30-9:30 p.m. at Axelrad. Register here.

Green ICU Conference: Sustainability in Health Care for a Healthier Future

Houston Methodist will host its inaugural Green ICU Conference during Houston Energy & Climate Week. The conference is designed to bring together healthcare professionals, industry leaders, policymakers and innovators to explore solutions for building a more sustainable healthcare system.

This event is Wednesday, Sept. 17. from 8 a.m.-3 p.m. at TMC Helix Park. Register here.

Rice Alliance Energy Tech Venture Forum

Hear from clean energy startups from nine countries and 19 states at the 22nd annual Energy Tech Venture Forum. The 12 companies that were named to Class 5 of the Rice Alliance Clean Energy Accelerator will present during Demo Day to wrap up their 10-week program. Apart from pitches, this event will also host keynotes from Arjun Murti, partner of energy macro and policy at Veriten, and Susan Schofer, partner at HAX and chief science officer at SOSV. Panels will focus on corporate innovation and institutional venture capital.

This event is Thursday, Sept. 18, from 7:30 a.m.-5 p.m. at Rice University’s Jones Graduate School of Business. Register here.

Shell STCH Open House

Get a behind-the-scenes look at how Shell is leveraging open innovation to scale climate tech. The open house will spotlight two Houston-based startups—Mars Materials, which converts captured CO2 into acrylonitrile, and DexMat, which transforms methane into high-performance carbon nanotube fibers.

This event is Thursday, Sept. 18, from 8:30 a.m.-12:15 p.m. at Shell Technology Center. Register here.

ACCEL Year 3 Showcase

Celebrate Advancing Climatetech and Clean Energy Leaders Program, or ACCEL, an accelerator program for startups led by BIPOC and other underrepresented founders from Greentown Labs and Browning the Green Space. Two Houston companies and one from Austin are among the eight startups to be named to the 2025 group. Hear startup pitches from the cohort, and from Greentown's Head of Houston, Lawson Gow, CEO Georgina Campbell Flatter and others.

This event is Thursday, Sept. 18, from 5-8 p.m. at Greentown Labs. Get tickets here.

Halliburton Labs Finalists Pitch Day

Hear from Halliburton Labs' latest cohort of entrepreneurs. The incubator aims to advance the companies’ commercialization with support from Halliburton's network, facilities and financing opportunities. Its latest cohort includes one company from Texas.

This event is Friday, Sept. 19, from 8 a.m.-noon at The Ion. Register here.

Chevron Energy Innovation Finals

The University of Houston will present the 4th Annual Chevron Innovation Commercialization Competition.

The event is Friday, Sept. 19, from 10 a.m.-1:30 p.m. at the University of Houston. Register here.

Houston Energy and Climate Startup Week was founded in 2024 by Rice Alliance for Technology and Entrepreneurship, Halliburton Labs, Greentown Labs, Houston Energy Transition Initiative (HETI), Digital Wildcatters and Activate.

Last year, Houston Energy and Climate Startup Week welcomed more than 2,000 attendees, investors and industry leaders to more than 30 events. It featured more than 100 speakers and showcased more than 125 startups.





Here are the 100 startups selected to participate in this year's Rice Alliance Energy Tech Venture Forum. Photo by Natalie Harms

Rice Alliance names participants in 22th annual energy forum

where to be

The Rice Alliance for Technology and Entrepreneurship has named the 100 energy technology ventures that will convene next month at the 22nd annual Rice Alliance Energy Tech Venture Forum, as part of the second annual Houston Energy and Climate Startup Week.

Half of the startups, which hail from nine countries and 19 states, will pitch during the event, which culminates in the annual recognition of the “Most Promising Companies." The 12 companies that were named to Class 5 of the Rice Alliance Clean Energy Accelerator will present during Demo Day to wrap up their 10-week program.

In addition to pitches, the event will also host keynotes from Arjun Murti, partner of energy macro and policy at Veriten, and Susan Schofer, partner at HAX and chief science officer at SOSV. Panels will focus on corporate innovation and institutional venture capital. Attendees can also participate in one-on-one office hours with founders and investors.

The forum will take place Sept. 18 at Rice University’s Jones Graduate School of Business.

The 2025 presenting companies include:

  • Aeromine Technologies
  • AlumaPower
  • Ammobia
  • Aqua-Cell Energy
  • Aquafortus
  • Aquora Biosystems
  • Arculus Solutions
  • Artemis Production Solutions
  • AtmoSpark Technologies
  • AtoMe
  • Badwater Alchemy
  • C+UP
  • Carbon Blade
  • Circul8 Energy & Environment
  • CO2 Lock
  • Direct C
  • DirectH2
  • Ekona Power
  • Exum Instruments
  • Fathom Storage
  • Flyscan Systems
  • Geokiln Energy Innovation
  • Glint Solar
  • Hive Autonomy
  • Horne Technologies
  • Hydrogenious LOHC Maritime
  • Innowind Energy Solutions
  • Iron IQ
  • Kewazo
  • LiNova Energy
  • Lukera Energy
  • Lydian
  • Mcatalysis
  • Metal Light
  • Mithril Minerals
  • Moment Energy
  • Moonshot Hydrogen
  • Muon Vision
  • PolyQor
  • Polystyvert dba UpSolv
  • Precision Additive
  • RapiCure Solutions
  • Resollant
  • SiriNor
  • Skyven Technologies
  • Sperra
  • SpiroPak
  • Sweetch Energy
  • Teverra
  • Utility Global
  • Xplorobot

Companies participating in office hours include:

  • Active Surfaces
  • Advanced Reactor Technologies
  • Advanced Thermovoltaic Systems
  • Ai Driller
  • Airbridge
  • Airworks Compressors
  • Austere Environmental
  • Brint Tech
  • CarbonX Solutions
  • Cavern Energy Storage
  • Celadyne Technologies
  • CERT Systems
  • CubeNexus
  • Deep Anchor Solutions
  • Ellexco
  • Emerald Battery Labs
  • Equipt.ai
  • FAST Metals
  • FieldMesh
  • FlowCellutions
  • Fluidsdata
  • GrapheneTX
  • GS VORTEX SYSTEMS
  • Installer
  • Kanin Energy
  • MacroCycle Technologies
  • Modular MOPU
  • NANOBORNE
  • NetForwards
  • Oxylus Energy
  • PetroBricks
  • PHNXX
  • RASMAG Energy
  • RedShift Energy
  • RENASYS
  • RenewCO2
  • Resonantia Diagnostics
  • Respire Energy
  • Safety Radar
  • SeaStock
  • Secant Fuel
  • SolGrapH
  • Stratos Perception
  • Terraflow Energy
  • Think Energy Holdings
  • Turnover Labs
  • Utiltyx
  • Zenthos Energy

Find information about the full day of events here, or click here to register.

The Rice Alliance Clean Energy Accelerator has named its fifth cohort. Photo via the Ion

Houston cleantech accelerator names 12 startups to 2025 cohort

early-stage accelerator

The Rice Alliance Clean Energy Accelerator has named 12 early-stage startups to its latest cohort.

The hybrid program, which operates in a hybrid capacity based out of the Ion, runs for 10 weeks and provides energy transition startups with training focused on fundraising, pilots, partnerships and sale. It begins July 8 and will be led by executive director Kerri Smith and program director Matthew Peña with support from executives-in-residence Lynn Frostman, John Jeffers, David Horsup and Dev Motiram.

The accelerator will culminate with a demo day on Sept. 18 at the Rice Alliance Energy Tech Venture Forum during the Houston Energy and Climate Startup Week.

Members of this year's cohort come from the Houston area as well as across the U.S. and Canada.

Class 5 for the Rice Alliance Clean Energy Accelerator includes:

  • Aqua-Cell Energy, which builds industrial-scale overnight batteries to provide affordable solar power
  • Arculus, a company that provides multilayer internal coating for pipelines that lowers friction, extends pipeline life and enables carbon dioxide transport and hydrogen blending
  • AtmoSpark, a Houston-based sustainable cooling and freshwater company that provides an electric field-driven air separation system that reduces dehumidification energy costs for data centers and industrial facilities
  • AtoMe, which delivers durable metallic composites to energy and aerospace companies using an eco-friendly dry blade method that eliminates harmful chemicals
  • ConceptLoop, a company that converts plastic waste into eco-friendly, low-carbon aggregate
  • Fathom Storage, which provides a more solidly embedded and steel-efficient anchoring solution for offshore service providers, wind energy developers and research institutes
  • GeoKiln, a Houston-based company that addresses issues of subsurface hydrogen extraction by applying proven oil and gas techniques to accelerate natural hydrogen reactions, enabling hydrogen production
  • Innowind Energy Solutions, a company that provides nonintrusive, active flow control devices to boost energy production and extend turbine lifespan
  • Lukera Energy, which transforms waste methane into high-value methanol using a breakthrough nanobubble technology
  • Metal Light Inc., which has developed a scalable, cost-effective Metal-Air generator to replace diesel generators
  • Moonshot Hydrogen, a company that converts food and agricultural waste into clean hydrogen and bioethanol
  • Resollant, a Woodlands-based company that delivers compact, zero-emission hydrogen and carbon reactors to refineries, petrochemical plants, steel and cement manufacturers and fuel producers

The Rice Alliance Clean Energy Accelerator has supported 55 ventures since it was founded in 2021, collectively raising over $250 million in funding, according to the university. See last year's cohort here.

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Houston’s data center capacity set to grow 80%, report says

data findings

Houston stands to benefit from constraints dogging data center markets elsewhere in Texas, a new report indicates. This comes against the backdrop of Texas surpassing Virginia as the country’s top state for data centers — and amid deepening opposition to these facilities.

The report, published by commercial real estate services provider JLL, foresees Houston continuing to gain traction in data center development as occupants seek “scalable alternatives” to Texas markets experiencing supply-and-demand imbalances.

The Houston area currently hosts data centers with 287 megawatts of capacity, well below capacity levels in the Dallas-Fort Worth, Austin-San Antonio and West Texas markets.

However, the region is witnessing a spike in capacity, with 390 megawatts of capacity under construction, according to the report. Counting newly built data centers, Houston would be home to 677 megawatts of data center capacity, an 80 percent increase from the current inventory, the report says.

Developers target West Houston for large-scale data centers

Developers increasingly are evaluating West Houston and surrounding areas for large-scale campuses capable of supporting behind-the-meter power, according to the report. Data center development in the region is likely to remain concentrated in those areas, where power is readily accessible and flood risks are lower, the report adds.

The report notes that Houston is evolving from a traditionally enterprise-focused co-location market for data centers into a “credible large-scale growth market,” buoyed by rising interest in hyperscale facilities and increased development activity.

Corporate, energy and healthcare users are still active in Houston’s data center market, the report says, with cloud computing and technology tenants making inroads. The Houston market absorbed 25 megawatts of data center capacity in the first half of this year.

Texas crowned No. 1 state market for data center capacity

The growth of Houston’s data center sector is occurring in tandem with Texas’ ascent as a data center market. The report shows Texas now boasts 26 gigawatts of existing and under-construction capacity, followed by Virginia at 13 gigawatts.

JLL declares that “Texas has cemented its position as the state for data centers.”

The “frontier” markets of West Texas, the Carolinas, Louisiana, and Ohio account for 77 percent of all capacity being developed nationwide, according to the report.

As evidence of Texas’ heightened stature in the data center sector, commercial real estate services provider Cushman & Wakefield recently ranked Dallas as the world’s No. 1 primary data center market, while Austin-San Antonio led the list of second-tier markets and West Texas topped the third-tier ranking.

These rankings underscore “Texas’ growing importance as a large-scale AI infrastructure hub,” Cushman & Wakefield says.

Opposition to new data centers in Texas grows

While businesses see the value of adding data centers in Texas, the state’s data center boom is rattling residents and politicians alike.

A recent University of Houston survey finds that although 85 percent of Houston-area residents use AI—a key driver of data center growth—nearly 63 percent oppose construction of a data center within a mile of their home. Experts estimate 6.5 gigawatts of capacity, or roughly one-fifth of the total U.S. pipeline, will join the Texas power grid by 2030, with Houston serving as a main hub.

A poll taken recently by the University of Texas/Texas Politics Project yielded similar results: 56 percent of Texans oppose development of data centers in their community.

“Texas’ grid is already facing pressure from population growth, extreme weather and rising industrial demand,” UH researcher Soran Mohtadi says. “When residents say they are concerned about data centers, they’re mostly referring to grid reliability and affordability.”

Data center backlash prompts action by politicians

Responding to Texans’ concerns over power and water consumption, Gov. Greg Abbott recently imposed a moratorium on new data centers in the state to allow time for regulatory agencies to assess the projects’ impact. Meanwhile, some state lawmakers are calling for a crackdown on data center development.

Last month, a state legislative committee chaired by Sen. Joan Huffman, a Houston Republican, held a hearing on the effects of state sales tax exemptions given to data centers. The cost of these exemptions has climbed from an estimated $14.6 million in 2014-15 to a projected $3.3 billion in 2028-29, according to law firm Holland & Knight.

Two backers of massive data centers in Texas, social media giant Meta Platforms and AI powerhouse OpenAI, agreed this week to comply with Abbott’s recently issued standards regarding data center projects—and more have followed suit.

Dan Diorio, executive vice president of state policy and government affairs for the industry-backed Data Center Coalition, fears backlash against data centers may curb economic growth in Texas.

“I worry that communities that put moratoriums ultimately create too much uncertainty and unpredictability, and what that ultimately means is that those communities may shut themselves off to data center development but also may shut themselves off to broader economic development,” Diorio told Fox 7 News in Austin.

Texas battery startup hits $13 billion valuation & more top energy news

Trending News

Editor's note: Summer is sizzling in the energy transition sector, with a big investment for Base Power and the acquisition of Houston-based Zupt. Plus, an Alabama-based renewables company relocates to Houston. Below are the five most-read EnergyCapitalHTX stories published between July 30-August 13, 2026:

1. Texas battery startup Base Power hits $13B valuation with $1B raise

Base Power, an Austin-based residential power provider with a Houston office, has raised $1 billion in a Series D round, bringing the startup’s valuation to $13 billion. Ribbit, Addition, Valor Equity Partners, and JPMorganChase’s Strategic Investment Group led the round, with participation from Altimeter, D1 Capital Partners, Sands Capital, Coatue, Layer Global, and Energy Impact Partners. Existing investors also added to the round, including Thrive Capital, a16z, Lightspeed, Trust Ventures, and CapitalG. Base Power, which provides residential battery backup systems that automatically turn on during outages and sells electricity to homeowners, says the funding will go toward hiring more people and expanding nationally. Continue reading.

2. Houston subsea firm Zupt acquired in offshore tech deal

Houston-based Zupt LLC, a provider of advanced metrology, inspection, and engineering services for offshore energy and renewable projects, has been acquired by Columbus, Ohio-based Rosenxt Holding USA for an undisclosed amount. Rosenxt says the deal, which closed July 21, represents another step in its long-term strategy to build a portfolio of technology and engineering capabilities for the subsea market in the energy sector. Continue reading.

3. Alabama-based renewable fuels company to move HQ to Houston

An Alabama-based clean tech company is moving its headquarters to Houston. Alléo Energy announced that it will move its headquarters from Bay Minette, Alabama, to Houston's Ion District. The company develops carbon-negative fuels and renewable commodities through its conversion technology that turns wood waste and cellulosic feedstocks into high-energy, high-yield syngas. Continue reading.

4. Houston geothermal startup adds former BP, Calpine execs to C-suite

XGS Energy, a Houston-based developer of geothermal power systems, has added several energy industry veterans to its C-suite this summer. The company named Al Vickers as its new chief operating officer earlier this month. Vickers will replace Ghazal Izadi in the role, as she moves into the chief growth officer position. Vickers previously served as CEO of bp's U.S. Low Carbon Energy business and most recently was COO of Houston-based Grid United, which develops next-generation transmission infrastructure. Continue reading.

5. Woodlands-based Lancium teams up on West Texas data center campus

The Woodlands-based Lancium Technologies, which designs, develops, and manages gigawatt-scale data center campuses, has teamed up with Denver-based data center builder and operator Crusoe Energy Systems on a new grid-connected campus more than 100 miles east of Wichita Falls. Construction on the 1-gigawatt Childress County campus, being built for an unidentified tech company, is expected to start in Q3 of this year. Continue reading.

Houston energy startups help drive $1B funding haul for Q1-Q2 2026

cha-ching

Houston startups started 2026 strong, bringing in nearly $1 billion in venture capital in the first half of the year, Pitchbook data shows.

Here are 17 Houston companies that secured funding since January, according to reporting by Energy Capital and our sister site, InnovationMap.com.

Did we miss a funding round? Let us know by emailing innoeditor@innovationmap.com. This article originally appeared on our sister site, InnovationMap.com.

Sage Geosystems

Sage Geosystems has raised a $97 million Series B. Photo via sagegeosystems.com.

Houston-based geothermal energy startup Sage Geosystems closed its Series B fundraising round in January and plans to use the money to launch its first commercial next-generation geothermal power generation facility.

Ormat Technologies and Carbon Direct Capital co-led the $97 million round, according to a press release from Sage. Existing investors Exa, Nabors, alfa8, Arch Meredith, Abilene Partners, Cubit Capital and Ignis H2 Energy also participated, as well as new investors SiteGround Capital and The UC Berkeley Foundation’s Climate Solutions Fund.

The new geothermal power generation facility will be located at one of Ormat Technologies' existing power plants. The Nevada-based company has geothermal power projects in the U.S. and numerous other countries around the world. The facility will use Sage’s proprietary pressure geothermal technology, which extracts geothermal heat energy from hot dry rock, an abundant geothermal resource. Continue reading.

TrueLeap Inc.

Sandip Bordoloi and Sunny Zhang, founders of True Leap Inc. Photo via trueleapinc.com.

Houston-based edtech company TrueLeap Inc. closed an oversubscribed seed round in January.

The $3.3 million round was led by Joe Swinbank Family Limited Partnership, a venture capital firm based in Houston. Gamper Ventures, another Houston firm, also participated with additional strategic partners.

TrueLeap reports that the funding will support the large-scale rollout of its "edge AI, integrated learning systems and last-mile broadband across underserved communities." Continue reading.

Wellysis

Wellysis is known for its continuous ECG/EKG monitor with AI reporting, known as the S-Patch. Photo via wellysis.com.

Wellysis, a Seoul, South Korea-headquartered wearable biosensing company with its U.S. subsidiary based in Houston, closed a $13.5 million pre-IPO funding round in February and plans to expand its Texas operations.

The round was led by Korea Investment Partners, Kyobo Life Insurance, Kyobo Securities, Kolon Investment and a co-general partner fund backed by SBI Investment and Samsung Securities, according to a news release.

Wellysis reports that the latest round brings its total capital raised to about $30 million. The company is working toward a Korea Securities Dealers Automated Quotations listing in Q4 2026 or Q1 2027.

Wellysis is known for its continuous ECG/EKG monitor with AI reporting. Its lightweight and waterproof S-Patch cardiac monitor is designed for extended testing periods of up to 14 days on a single battery charge. Continue reading.

DexMat

DexMat plans to use its seed funding to commercially scale Galvorn, its carbon-based conductive fiber. Photo courtesy DexMat.

Houston-based material science and climatech startup DexMat closed a $5 million seed round in February.

The round was led by non sibi ventures, with participation from Governance Partners, Tailwind Futures, BetterWay, Capital Factory and other investors. The company additionally announced that it has secured $3 million of non-dilutive funding.

DexMat plans to use the recent round to commercially scale Galvorn, its carbon-based conductive fiber. The high-performance copper alternative, originally developed at Rice University, is made from carbon nanotube (CNT) fibers, which are less energy- and CO2-intensive to produce. Continue reading.

Coya Therapeutics

Coya Therapeutics plans to scale up manufacturing and prepare for the commercialization of COYA 302, its ALS therapy drug. Photo via Getty Images

Houston-based clinical-stage biotechnology company Coya Therapeutics (NASDAQ: COYA) closed a $11.1 million in a private investment round in February.

India-based pharmaceuticals company Dr. Reddy’s Laboratories Inc. led the round with a $10 million investment, according to a news release. New York-based investment firm Greenlight Capital, Coya’s largest institutional shareholder, contributed $1.1 million.

Coya reports that it plans to use the proceeds to scale up manufacturing of low-dose interleukin-2 (IL-2), which is a component of its COYA 302 and will support the commercial readiness of the drug. COYA 302 enhances anti-inflammatory T cell function and suppresses harmful immune activity for treatment of Amyotrophic Lateral Sclerosis (ALS), Frontotemporal Dementia (FTD), Parkinson’s disease and Alzheimer’s disease. Continue reading.

Utility Global

Utility Global’s H2Gen technology aims to decarbonize the heavy industrial sector. Photo courtesy of Utility Global

Houston-based Utility Global raised $100 million in an ongoing Series D round to globally deploy its decarbonization technology at an industrial scale, the company reported in February.

The round was led by Ara Partners and APG Asset, according to a news release. Utility plans to use the funding to expand manufacturing, grow its teams and support its commercial developments and partnerships.

Utility Global's H2Gen technology produces low-cost, clean hydrogen from water and industrial off-gases without requiring electricity. It's designed to integrate into existing industrial infrastructure in hard-to-abate assets in the steel, refining, petrochemical, chemical, low-carbon fuels, and upstream oil and gas sectors. Continue reading.

Cart.com

Cart.com raised $180 million to scale its logistics network, expand AI capabilities and develop workflow automation tools. Photo courtesy of Cart.com

Houston-based commerce and logistics platform Cart.com raised $180 million in growth capital from private equity firm Springcoast Partners, pushing the startup past the $1 billion funding mark since its founding in 2020, the company reported in March.

Cart.com says it will use the capital to scale its logistics network, expand AI capabilities and develop workflow automation tools. Continue reading.

Artemis

Houston-based Artemis, formerly Monalee, closed its latest funding round in March. Rendering courtesy Artemis.

Houston tech startup Artemis raised $6 million from 10 investors, it reported in March. The company offers an AI-supported platform that enables solar, battery storage and home improvement contractors to design, sell and finance energy projects.

Long Journey and Copec WIND Ventures co-led the round, with participation from angel investor Scott Banister, Coalition Operators, FJ Labs, Ludlow Ventures, Palm Tree Crew, Plug and Play Ventures, Shrug Capital and Tribeca Ventures.

To help propel growth, the company secured $10 million in financing last year (under its previous name, Monalee) from venture debt and growth credit provider Applied Real Intelligence. As Monalee, the company raised $16 million in venture capital. Continue reading.

Helix Earth Technologies

Helix Earth's technology is estimated to save up to half of the net energy used in commercial air conditioning, reducing both emissions and costs for operators. Photo via Getty Images

Houston-based Helix Earth Technologies closed a $12 million Seed 2 funding round to scale manufacturing of its energy-efficient commercial HVAC add-on technology in April.

Veriten, a Houston-based energy investment firm, led the round. Rua Ventures, Carnrite Ventures, Skywriter LLC and Textbook Ventures also participated.

Helix Earth—which was founded based on NASA technology, spun out of Rice University and has been incubated at Greentown Labs—is developing high-efficiency retrofit dehumidification systems that aim to reduce the energy consumption of commercial HVAC units. The company reports that its technology can lead to "healthier indoor air, lower energy bills, reduced building maintenance, and more comfortable spaces for building owners and occupants." Continue reading.

NanoTech Materials

The company has developed thermal insulation technology that improves efficiency and safety in buildings and outdoor infrastructure. Photo via LinkedIn

Houston-based NanoTech Materials closed a $29.4 million Series A in April.

The round was led by Austin-based HPI Real Estate & Investments. Houston-based Goose Capital and Austin-based Milliken & Company also participated.

Nanotech has developed its patented Insulative Ceramic Particle (ICP) technology, which reduces heat transfer in buildings and outdoor infrastructure, improving efficiency and safety. It's known for its Cool Roof Coat, Wildfire Shield and Insulative Coat: Cool Touch product lines. Continue reading.

Paige

Paige founder and CEO Emily Cisek. Photo courtesy Paige

Houston-based Paige, a comprehensive life planning and succession software company, secured a $2.5 million investment to expand the AI-driven tools on its platform this spring.

The funding comes from Alabama-based 22nd State Banking Company, according to a news release. Paige says it will use the funding to expand automation, AI-driven onboarding and self-service tools, as well as add to its sales and customer success teams.

The company was originally founded by CEO Emily Cisek in 2020 as The Postage and rebranded to Paige last year. It helps users navigate and organize end-of-life planning with features like document storage and organization, password management, and funeral and last wishes planning. Continue reading.

Ace Green Recycling

The company plans to use the funds to support its flagship Texas facility and planned merger. Photo via LinkedIn

Houston-based Ace Green Recycling raised $32 million in private investment in public equity (PIPE) financing to support its future plans for growth, the company reported in May.

The battery recycling technology company secured the financing with Athena Technology Acquisition Corp. II, a publicly traded special purpose acquisition company that Ace previously announced it plans to merge with. Once the merger is completed, Ace will become a publicly traded company on the Nasdaq Stock Exchange under the ticker symbol "AGXI."

Ace says the financing will be used to complete the merger and scale the company. Continue reading.

Casimir

Casimir’s semiconductor chips can generate power from quantum vacuum fields without the need for batteries or charging. Photo via casimir.inc

Houston-based Casimir emerged from stealth in May 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, according to a news release.

Casimir’s semiconductor chips can generate power from quantum vacuum fields without the need for batteries or charging. The company plans to commercialize its first-generation MicroSparc chip by 2028. Continue reading.

VoltaGrid

VoltaGrid has developed a modular power generation system that improves reliability and limits emissions. Photo via voltagrid.com

Houston-based power generation startup VoltaGrid nailed down a $1 billion equity investment from asset management heavyweight Blackstone and Houston-based oilfield services provider Halliburton in May.

The investment came in two forms:

  • A $775 million primary capital raise
  • A $225 million secondary capital purchase from existing investors

VoltaGrid, founded in 2020, provides behind-the-meter mobile power generation equipment for data centers, microgrids and industrial customers. Continue reading.

Aquanta Vision

Babur Ozden is the founder and CEO of Aquanta Vision. Photo via LinkedIn

Houston climatech startup Aquanta Vision secured pre-seed funding to accelerate the commercialization of its methane leak detection software, the company announced in May.

EIC Rose Rock participated in the round, joining investors like Marathon Petroleum Corporation, Chevron Technology Ventures, Ecosphere Ventures, and Odyssey Energy Advisors. The investment follows successful field trials for Aquanta Vision’s optical gas imaging (OGI) detection software, according to the company. Continue reading.

Axiom Space

Axiom Space closed an oversubscribed $525 million round in June. Image via NASA

Axiom Space tacked on an additional $175 million to a previously announced capital raise in June, bringing the oversubscribed round to a total of more than $525 million.

Axiom shared in February that it had secured $350 million in a financing round led by Type One Ventures and Qatar Investment Authority. In June, the company reported that Japan-based MUFG Bank Ltd. joined the round as a new investor, in addition to continued participation from existing backers.

The funding will go toward developing the company's commercial space station, known as Axiom Station, and the production of its Axiom Extravehicular Mobility Unit (AxEMU) under its NASA spacesuit contract. Continue reading.

Receipts Depositary Corporation

The company's platform makes it easier to buy and trade hard-to-access and less traditional assets. File photo

Houston-based fintech company Receipts Depositary Corporation closed a $7 million oversubscribed funding round in June and plans to scale.

The round was led by Austin-based LiveOak Ventures, with participation from Hivemind Capital, Onigiri Capital, OTC Markets Group, GTS, and Redbeard Ventures, according to a release from RDC.

RDC's platform issues depositary receipts (DRs) to qualified investors on digital and alternative assets, making it easier for investors to buy and trade hard-to-access and less traditional assets. Continue reading.