Three Houston companies pitched their energy transition technologies at an international competition. Photo via Getty Images
It's all hands on deck for pioneering technology to advance the energy transition and climatetech, and three companies with a Houston presence just took the national stage to showcase their climate change solutions.
The United Nations' 2021 COP26, hosted by the Net Zero Technology Centre in Glasgow, featured 10 startup organizations from across the globe battling it out to be crowned the Clean Energy Startup Champion.
The Ion Houston nominated five startups to the competition, and three made it to the finals. Syzygy Plasmonics, which is developing a new type of photocatalytic chemical reactor to reduce both cost and emissions for major commodity chemicals, claimed third place in the competition. The other two Ion nominees that pitched were:
S2G Energy, an Ion Smart Cities Accelerator participant, and cloud-based Energy Assistant platform that collects data and manages devices from almost any source to capture efficiency opportunities
Cemvita Factory, which applies synthetic biology to reverse climate change and transform CO2 into a usable material
"The Ion partnered with Net Zero with the vision to bring innovative and transformative startups out of the North/Central and South American market to the stage in Glasgow," says Jan E. Odegard, executive director of The Ion, in a statement. "We took a look around our own ecosystem both at The Ion and the Ion District and S2G Energy, Syzygy Plasmonics, and Cemvita Factory were easy and obvious nominations, as they were all working towards achieving net zero and are exemplars of startup innovation within our ecosystem."
Australia-based Mineral Carbonation Int'l, focused on carbon transformation, claimed first place and the title of top Clean Energy Startup Champion. PJP Eye, based in Japan and working on commercialised plant-based carbon batteries, came in second.
The second cohort of The Ion Smart and Resilient Cities Accelerator hosted a day full of thought leadership and startup pitches. Photo by Shobeir Ansari, Getty Images
In light of COVID-19, it is more relevant than ever to discuss and support startups with sustainability and resiliency in mind. At The Ion Smart and Resilient Cities Cohort 2 Demo Day, a virtual audience was reminded of that.
"So, 2020 has certainly been a year of unprecedented uncertainty and change for Houston, for Texas, for our country, and for our world," says Christine Galib, director of the accelerator. "The past few months in particular have been especially difficult as the global pandemic and civil unrest continue to spotlight systemic and structural scars on the face of humanity."
The virtual event was streamed on July 1 and hosted several thought leaders and presenters before concluding with pitches from four of the cohort companies.
"Through it all, and in a virtual world, Cohort 2 startups, the mentors, and our Ion team have been the change we wish to see in the world," Galib continues. "For these startups, failure is simply not an option — and neither is going at it alone."
Earlier this year, Galib announced the second cohort would be focused on solutions for Houston's air quality, water purification, and other cleantech needs. The program, backed by Intel, Microsoft, and TX/RX, launched on Earth Day and commenced shortly after. Cohort 3 is expected later this year.
Here are the four companies that pitched and the problems they are trying to solve.
Re:3D
re:3D was founded just down the street from NASA's Johnson Space Center to address the need for a mid-market 3D printing solution. The Houston-based startup also wanted to create their 3D printer that operates on recycled plastics in order to prevent excess waste.
"Where some see trash, we see opportunity," Charlotte Craff, community liaison at Re:3D says in her presentation.
Re:3D's clients can get their hands on their own Gigabot for less than $10,000, and the printer uses pellets and flakes from recycled plastics —not filament — to print new designs. Clients are also supported by the company with design software and training.
"We can help the city of Houston help meet its climate action and resilient city goals by transforming the way people think about recycling," Craff says about Re:3D's future partnerships with the city.
Water Lens
While two-thirds of the world is covered in water, only 0.7 percent is drinkable. And of that fresh water, 92 percent of it is used in agricultural and industrial settings. This is how Keith Cole, CEO and founder of Water Lens, set the scene for his presentation.
Water Lens, which is based in Houston with a lab located in Austin, wants to solve the problem of cities and countries running out of fresh, drinkable water by equipping huge water-using companies with a water testing tool.
"We've developed a system to let anyone test any water literally anywhere in the world," Cole says, citing clients like ExxonMobil, Shell, and Halliburton.
S2G Energy
S2G Energy, based in Mexico, is focused on optimizing energy management in order to digitize, empower, and unlock potential for cost-saving efforts and technology.
In his pitch, Geronimo Martinez, founder of S2G Energy, points out that restaurants, commercial buildings, and other adjacent industries can save money by implementing energy management solutions that come out of S2G Energy's expertise. In Mexico, Martinez says, clients include the top two restaurant chains that — especially during COVID-19 — need optimization and cost saving now more than ever.
Eigen Control
A refinery's distillation columns are expensive — their fuel use accounts for 50 of operating costs, says Dean Guma, co-founder and CEO of Houston-based Eigen Control.
Guma explains in his pitch how Eigen Control's technology can plug into existing sensors, model networks based on data, and employ the startup's artificial intelligent technology to reduce carbon emissions and save money on operating costs.
The Ion Smart and Resilient Cities Accelerator has selected its next cohort. Courtesy of The Ion
As the world celebrated the 50th annual Earth Day on April 22, a Houston innovation organization announced a new group of startups for its accelerator program that will focus on cleantech solutions within the city of Houston and beyond.
The Ion's accelerator, which recently renewed its focus on resiliency, announced its second cohort with six startups that will create solutions for Houston's air quality, water purification, and other cleantech needs.
"Through leveraging the power of our local Ion community, The Ion Smart and Resilient Cities Accelerator is committed to solving challenges Houstonians face every day," says Christine Galib, senior director of accelerator programs at The Ion and the director of the accelerator, in a news release. "We connect participating startups with mentors, partners, and stakeholders, so they gain access to the resources they need to build, validate, and scale their technologies. Together, we are building a safer, smarter, and more accessible city for all Houstonians."
The program is supported by Intel, Microsoft, and TX/RX and has began its programming for the new cohort. The six startups selected for the program are:
Houston-based Eigen Control uses machine learning and chemical engineering models to combat rising CO2 emissions. Distillation process plants emit so much CO2 — and Eigen Control's processes are working to change that.
Houston-based Annapurna Solutions has cloud-based solutions for hazardous and solid waste management.
Mexico City-based S2G Energy focuses on sustainable and optimized solutions for businesses and governments with its energy-management-as-a-service technology.
Houston-based re:3D is a 3D-printing nonprofit that is democratizing small-scale manufacturing. Its Gigabot can use recycled and reclaimed materials for more sustainable and affordable production. The company, which has offices in Puerto Rico and Austin, donates a printer to someone making a difference with every 100 printers it sells.
Austin-based LifePod Corps is a nonprofit that provides disaster relief through renewable and sustainable technologies built and delivered by military veterans.
Houston-based Water Lens has created a real-time water data analytics platform for industries that use a lot of water — like oil and gas, agriculture, power generation, coal mining, and food processing. The technology allows for quicker, more reliable results.
The accelerator's leaders chose its theme for the cohort based on the City of Houston's Resilient Houston Strategy and Climate Action Plan. The program has identified these six startups as movers and shakers within these Smart Cities challenges.
"We are thrilled to collaborate with these startups to further develop Houston as one of America's smartest and most resilient cities," says Gabriella Rowe, executive director of The Ion, in the release. "By leveraging our resources and networks, the accelerator and Cohort 2 improve living conditions for all Houstonians. In this way, we stimulate our local economy with new jobs and economic opportunities."
Last year's inaugural cohort was announced in August and focused on resilience and mobility. After a demo day in December, the cohort continued its work in Houston through 15 pilot programs the startups had with the city. The third cohort is expected to launch toward the end of 2020, but the next theme has not yet been decided.
Affluent Houston neighbor Bellaire is cashing in as the richest small town in Texas for 2025, according to new study from GoBankingRates.
The report, "The Richest Small Town in Every State," used data from the U.S. Census Bureau's American Community Survey to determine the 50 richest small towns in America based on their median household income.
Of course, Houstonians realize that describing Bellaire as a "small town" is a bit of misnomer. Located less than 10 miles from downtown and fully surrounded by the City of Houston, Bellaire is a wealthy enclave that boasts a population of just over 17,000 residents. These affluent citizens earn a median $236,311 in income every year, which GoBankingRates says is the 11th highest household median income out of all 50 cities included in the report.
The average home in this city is worth over $1.12 million, but Bellaire's lavish residential reputation often attracts properties with multimillion-dollar price tags.
Bellaire also earned a shining 81 livability score for its top quality schools, health and safety, commute times, and more. The livability index, provided by Toronto, Canada-based data analytics and real estate platform AreaVibes, said Bellaire has "an abundance of exceptional local amenities."
"Among these are conveniently located grocery stores, charming coffee shops, diverse dining options and plenty of spacious parks," AreaVibes said. "These local amenities contribute significantly to its overall appeal, ensuring that [residents'] daily needs are met and offering ample opportunities for leisure and recreation."
Earlier in 2025, GoBankingRates ranked Bellaire as the No. 23 wealthiest suburb in America, and it's no stranger to being named on similar lists comparing the richest American cities.
Corrosion is not something most people think about, but for Houston's industrial backbone pipelines, refineries, chemical plants, and water infrastructure, it is a silent and costly threat. Replacing damaged steel and overusing chemicals adds hundreds of millions of tons of carbon emissions every year. Despite the scale of the problem, corrosion detection has barely changed in decades.
In a recent episode of the Energy Tech Startups Podcast, Anwar Sadek, founder and CEO of Corrolytics, explained why the traditional approach is not working and how his team is delivering real-time visibility into one of the most overlooked challenges in the energy transition.
From Lab Insight to Industrial Breakthrough
Anwar began as a researcher studying how metals degrade and how microbes accelerate corrosion. He quickly noticed a major gap. Companies could detect the presence of microorganisms, but they could not tell whether those microbes were actually causing corrosion or how quickly the damage was happening. Most tests required shipping samples to a lab and waiting months for results, long after conditions inside the asset had changed.
That gap inspired Corrolytics' breakthrough. The company developed a portable, real-time electrochemical test that measures microbial corrosion activity directly from fluid samples. No invasive probes. No complex lab work. Just the immediate data operators can act on.
“It is like switching from film to digital photography,” Anwar says. “What used to take months now takes a couple of hours.”
Why Corrosion Matters in Houston's Energy Transition
Houston's energy transition is a blend of innovation and practicality. While the world builds new low-carbon systems, the region still depends on existing industrial infrastructure. Keeping those assets safe, efficient, and emission-conscious is essential.
This is where Corrolytics fits in. Every leak prevented, every pipeline protected, and every unnecessary gallon of biocide avoided reduces emissions and improves operational safety. The company is already seeing interest across oil and gas, petrochemicals, water and wastewater treatment, HVAC, industrial cooling, and biofuels. If fluids move through metal, microbial corrosion can occur, and Corrolytics can detect it.
Because microbes evolve quickly, slow testing methods simply cannot keep up. “By the time a company gets lab results, the environment has changed completely,” Anwar explains. “You cannot manage what you cannot measure.”
A Scientist Steps Into the CEO Role
Anwar did not plan to become a CEO. But through the National Science Foundation's ICorps program, he interviewed more than 300 industry stakeholders. Over 95 percent cited microbial corrosion as a major issue with no effective tool to address it. That validation pushed him to transform his research into a product.
Since then, Corrolytics has moved from prototype to real-world pilots in Brazil and Houston, with early partners already using the technology and some preparing to invest. Along the way, Anwar learned to lead teams, speak the language of industry, and guide the company through challenges. “When things go wrong, and they do, it is the CEO's job to steady the team,” he says.
Why Houston
Relocating to Houston accelerated everything. Customers, partners, advisors, and manufacturing talent are all here. For industrial and energy tech startups, Houston offers an ecosystem built for scale.
What's Next
Corrolytics is preparing for broader pilots, commercial partnerships, and team growth as it continues its fundraising efforts. For anyone focused on asset integrity, emissions reduction, or industrial innovation, this is a company to watch.
Energy Tech Startups Podcast is hosted by Jason Ethier and Nada Ahmed. It delves into Houston's pivotal role in the energy transition, spotlighting entrepreneurs and industry leaders shaping a low-carbon future.
Fifty-one scientists and professors from Houston-area universities and institutions were named among the most cited in the world for their research in medicine, materials sciences and an array of other fields.
The Clarivate Highly Cited Researchers considers researchers who have authored multiple "Highly Cited Papers" that rank in the top 1percent by citations for their fields in the Web of Science Core Collection. The final list is then determined by other quantitative and qualitative measures by Clarivate's judges to recognize "researchers whose exceptional and community-wide contributions shape the future of science, technology and academia globally."
This year, 6,868 individual researchers from 60 different countries were named to the list. About 38 percent of the researchers are based in the U.S., with China following in second place at about 20 percent.
However, the Chinese Academy of Sciences brought in the most entries, with 258 researchers recognized. Harvard University with 170 researchers and Stanford University with 141 rounded out the top 3.
Looking more locally, the University of Texas at Austin landed among the top 50 institutions for the first time this year, tying for 46th place with the Mayo Clinic and University of Minnesota Twin Cities, each with 27 researchers recognized.
Houston once again had a strong showing on the list, with MD Anderson leading the pack. Below is a list of the Houston-area highly cited researchers and their fields.
UT MD Anderson Cancer Center
Ajani Jaffer (Cross-Field)
James P. Allison (Cross-Field)
Maria E. Cabanillas (Cross-Field)
Boyi Gan (Molecular Biology and Genetics)
Maura L. Gillison (Cross-Field)
David Hong (Cross-Field)
Scott E. Kopetz (Clinical Medicine)
Pranavi Koppula (Cross-Field)
Guang Lei (Cross-Field)
Sattva S. Neelapu (Cross-Field)
Padmanee Sharma (Molecular Biology and Genetics)
Vivek Subbiah (Clinical Medicine)
Jennifer A. Wargo (Molecular Biology and Genetics)
William G. Wierda (Clinical Medicine)
Ignacio I. Wistuba (Clinical Medicine)
Yilei Zhang (Cross-Field)
Li Zhuang (Cross-Field)
Rice University
Pulickel M. Ajayan (Materials Science)
Pedro J. J. Alvarez (Environment and Ecology)
Neva C. Durand (Cross-Field)
Menachem Elimelech (Chemistry and Environment and Ecology)
