Amperon, Hertha Metals and Vaulted Deep were named to this year's Global Cleantech 100 list. Photo via Getty Images
Three Houston-area companies—Amperon, Hertha Metals and Vaulted Deep—appear on this year’s Global Cleantech 100 list.
The unranked list, generated by market intelligence and advisory firm Cleantech Group, identifies the 100 privately held companies around the world that are most likely to make a significant impact in the cleantech market over the next five to 10 years.
For the 2026 list, Cleantech Group received more than 24,000 Global Cleantech 100 nominations from nearly 60 countries. Cleantech Group scored those companies and narrowed the contenders to 264. An expert panel reviewed those nominees, and the list was whittled down to the 100 winners.
Here’s a rundown of the three Houston-area honorees:
Amperon
Founded in 2018 by Sean Kelly and Abe Stanway, Houston-based Amperon offers an AI-enabled energy forecasting and analytics platform designed to help stabilize electric grids. Amperon received undisclosed amounts of venture capital from National Grid Partners and Tokyo Gas Co. Ltd. last year and announced a recent investment from Samsung Ventures earlier this month.
Hertha Metals
Founded in 2022 by Laureen Meroueh, Conroe-based Hertha Metals provides a single-step process for producing sustainable steel. Last year, the company emerged from stealth mode and raised more than $17 million in venture capital.
Vaulted Deep
Vaulted Deep’s technology injects excess organic waste underground to remove carbon dioxide from the atmosphere. Julia Reichelstein and Omar Abou-Sayed founded the Houston-based company in 2023. Last year, the startup raised $32.3 million in venture capital. Also in 2025, Vaulted Deep signed a 12-year deal with software giant Microsoft to remove up to 4.9 million metric tons of carbon dioxide from the environment.
Vaulted Deep also made the list last year, along with Houston-based Syzygy Plasmonics and Fervo Energy. Fervo was also named the 2025 North American Company of the Year by Cleantech Group.
Amperon, a Houston-based AI-powered forecasting solutions company, has received an investment for an undisclosed amount from Samsung Ventures, the corporate venture arm of Samsung Group.
According to Amperon, the funding will be put toward the company's global growth and next-generation product development. Samsung Ventures invests in emerging businesses developing technologies for the AI, advanced devices and energy-related sectors.
“Samsung Ventures’ investment is a strong validation of our mission to transform the way energy is forecasted and traded,” Sean Kelly, CEO and co-founder of Amperon, said in a news release. “Samsung’s global footprint and leadership in semiconductors, data infrastructure, and AI acceleration make them a natural fit as we expand Amperon’s reach into energy-intensive sectors like data centers. Their track record of scaling next-generation technologies aligns perfectly with our vision to build a more intelligent, resilient, and data-driven energy system.”
Amperon was founded in 2018. Its AI models combine real-time weather, consumption and market data for energy retailers, utilities and independent power producers.
Last year, the company launched its weather-informed grid demand Mid-Term Forecast (MTF), which provides users with data on electricity demand up to seven months in advance. It also secured strategic investments from Acario, the corporate venture capital and innovation division of Tokyo Gas, as well as National Grid Partners, the venture investment and innovation arm of National Grid (NYSE: NGG).
After expanding into Europe in 2024, the company has continued to see international growth, and currently operates in the U.S., Canada, Mexico, Australia, Europe and the Middle East.
“Amperon has demonstrated strong technical capabilities and global traction in a rapidly evolving energy landscape,” a spokesperson for Samsung Ventures added in the release. “Their ability to forecast and model real-time energy data at global scale positions them as a key enabler of smarter energy systems and climate resilience. We are pleased to invest in a company developing technologies that support a more sustainable and digitized world.”
Amperon CEO Sean Kelly discuss the AI revolution in energy forecasting. Photo via LinkedIn
“Forecasting isn’t just about demand anymore—it’s about net demand, accounting for the variability of renewables like wind and solar.”
This insight from Sean Kelly, co-founder and CEO of Amperon, captures the seismic shift occurring in energy forecasting. With renewables surging, grid dynamics growing more complex, and demand more unpredictable than ever, the stakes have never been higher.
On a recent Energy Tech Startups Podcast, Kelly breaks down how Amperon’s AI-driven platform is transforming the way energy providers anticipate demand, mitigate risk, and embrace renewables. Named one of the Top 50 AI Companies in the U.S. by Andreessen Horowitz, Amperon is pushing the boundaries of what’s possible in energy technology.
Here’s a closer look at Kelly’s journey, the challenges he’s tackling, and the insights driving Amperon’s success.
What problem is Amperon solving?
Why does the energy sector need better forecasting now?
The energy grid is evolving at lightning speed. With 25 gigawatts of wind and 20 gigawatts of solar in Texas alone, the focus has shifted from simple demand forecasting to net demand forecasting. It’s not just about predicting how much electricity people will use—it’s about understanding how renewables will interact with that demand.
For example, if it’s a windy day in Texas, prices drop, and the grid behaves very differently. Accurate forecasting helps providers mitigate risk, plan ahead, and prevent costly errors in buying or selling electricity.
The Amperon approach: Why AI is essential
What sets Amperon’s technology apart?
Our models retrain every hour—not every month or even daily. Since launching in 2018, we’ve been continuously learning and adapting to the grid’s behavior. This is critical because the energy sector’s complexity is increasing every day.
We also leverage data from over 10 million meters across the U.S. and Europe, giving us unmatched insights into both individual assets and entire markets. Our tech isn’t about static solutions; it’s dynamic, evolving alongside the grid.
Building for scale: A strategic playbook
How has Amperon scaled from a Houston startup to a global player?
It starts with focus. We began with a clear problem: helping Texas retailers manage risk in a deregulated market. From there, we expanded into other customer segments—traders, public utilities, independent power producers, and more.
Partnerships have been key, too. For example, Microsoft has been instrumental in connecting us with utilities through the Azure marketplace. These collaborations not only enhance credibility but also streamline access to new customers.
The Case for Better AI in Energy
Kelly believes the energy industry is overdue for a technological overhaul. While legacy companies rely on outdated models, Amperon is built on cloud-native AI systems that can handle today’s complexity.
“The challenge isn’t just predicting demand—it’s adapting to constant change,” Kelly says. “Legacy systems weren’t built for this level of complexity. AI that learns every hour is no longer optional—it’s essential.”
Lessons for Entrepreneurs
Stay Customer-Centric: Amperon’s early success came from solving a clear, urgent need for Texas energy retailers. “Product-market fit is everything,” Kelly emphasizes.
Invest in Talent: By hiring data scientists from top companies like Google and Meta, Amperon has built a team capable of tackling the hardest problems.
Leverage Partnerships: Collaborations with players like Microsoft have amplified Amperon’s reach and trust in the market.
What’s next for Amperon?
With over $30 million raised and a rapidly growing global presence, Amperon is doubling down on innovation. The company plans to expand its asset-level forecasting capabilities and deepen its presence in international markets.
“The energy transition is running through Houston,” Kelly says. “This city has the talent, the capital, and the expertise to lead the way.”
Listen to the full episode with Sean Kelly on the Energy Tech Startups Podcast
here.
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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.
Clockwise from top left: Sean Kelly of Amperon, Dianna Liu of ARIXTechnologies, Matthew Dawson of Elementium Materials, Vibhu Sharma of InnoVent Renewables, Cindy Taff of Sage Geosystems, and Emma Konet of TierraClimate. Photos courtesy
From finding funding to navigating the pace of traditional oil and gas company tech adoption, energy transition companies face their fair share of challenges.
This year's Houston Innovation Awards finalists in the Energy Transition category explained what their biggest challenge has been and how they've overcome it. See what they said below, and make sure to secure your tickets to the Nov. 14 event to see which of these finalists win the award.
"The evolving nature of the energy industry presents opportunities to solve some of our industry's greatest
challenges. At Amperon we help optimize grid reliability and stability with the power of AI demand
forecasting."
— Sean Kelly, CEO of Amperon, an AI platform powering the smart grid of the future
"The biggest challenge in leading an energy transition-focused startup has been balancing the urgency for
sustainable solutions with the slow pace of change in traditional industries like oil and gas. Many
companies are cautious about adopting new technologies, especially when it comes to integrating
sustainability initiatives. We overcame this by positioning our solutions not just as environmentally
friendly, but as tools that improve safety, efficiency, and cost savings. By aligning our value proposition
with their operational goals and demonstrating real, measurable benefits, we were able to gain traction
and drive adoption in industries that are traditionally resistant to change."
— Dianna Liu, CEO of ARIXTechnologies, an integrated robotics and data analytics company that delivers inspection services through its robotics platforms
"Scaling up production of hard tech is a major challenge. Thankfully, we recruited top-notch talent with
experience in technology scale-up and chemical processes. In addition, we've begun building partnerships
with some of the world's largest chemical manufacturers in our space who are excited to be a part of our
journey and could rapidly accelerate our go to market strategy. We have significant demand for our
product as early as 2025, so partnering with these companies to scale-up will bring our technology to
market years ahead of doing it alone."
— Matthew Dawson, CEO of Elementium Materials, a battery technology with liquid electrolyte solutions
"Our pyrolysis reactor is a proprietary design that was developed during Covid. We ran simulations to
prove that it works, but it was not easy to test it in a pilot facility, let alone scaling it up. We managed ... to run our pilot
plant studies, while working with them remotely. We proved that our reactor worked and produced high
quality products. Later, we built our own pilot plant R&D facility to continue running tests and optimizing
the process. Then, there was the challenge of scaling it up to commercial size. ... We put together a task force of four different companies to come together to design and build this complex reactor in record time."
— Vibhu Sharma, CEO of InnoVentRenewables, a startup with proprietary continuous pyrolysis technology that converts waste tires, plastics, and biomass into valuable fuels and chemicals
"Energy storage and geothermal power generation are capital-intensive infrastructure projects, requiring
investors with a deep commitment and the patience in terms of years to allow the technology to be
developed and proven in the field. One challenge is finding that niche of investors with the vision to join
our journey. We have succeeded in raising our $30 million series A with these types of investors, whom we’re
confident will continue the journey as we scale."
— Cindy Taff, CEO of SageGeosystems, an energy company focused on developing and deploying advanced geothermal technologies to provide reliable power and sustainable energy storage solutions regardless of geography
"The biggest challenge we've faced has been to bring together massive independent power producers on one side who are investing hundreds of millions of dollars into grid infrastructure with multi-
national tech giants on the other that don't have experience working much with energy storage. As a
startup with only four employees, gaining credibility with these players was critical. We overcame this
hurdle by becoming the preeminent thought leader on storage emissions, through publishing white papers,
discussing the issues on podcasts, and (more)."
— Emma Konet, CTO of TierraClimate, a software provider that helps grid-scale batteries reduce carbon emissions
With the collaboration, joint customers can seamlessly integrate accurate energy forecasts into power market trading. Photo via amperon.co
In an effort to consolidate and improve energy data and forecasting, a Houston software company has expanded to a new platform.
Amperon announced that it has expanded its AI-powered energy forecaststoSnowflake Marketplace, an AI data cloud company. With the collaboration, joint customers can seamlessly integrate accurate energy forecasts into power market trading. The technology that Amperon provides its customers — a comprehensive, AI-backed data analytics platform — is key to the energy industry and the transition of the sector.
“As Amperon continues to modernize energy data and AI infrastructure, we’re excited to partner with Snowflake to bring the most accurate energy forecasts into a single data experience that spans multiple clouds and geographies," Alex Robart, chief revenue officer at Amperon, says in a news release. "By doing so, we’re bringing energy forecasts to where they will be accessible to more energy companies looking to increase performance and reliability."
Together, the combined technology can move the needle on enhanced accuracy in forecasting that strengthens grid reliability, manages monetary risk, and advances decarbonization.
“This partnership signifies Amperon’s commitment to deliver world-class data-driven energy management solutions," Titiaan Palazzi, head of power and Utilities at Snowflake, adds. "Together, we are helping organizations to easily and securely access the necessary insights to manage risk and maximize profitability in the energy transition."
With Amperon's integrated short-term demand and renewables forecasts, Snowflake users can optimize power markets trading activity and manage load risk.
"Amperon on Snowflake enables us to easily integrate our different data streams into a single unified view," Jack Wang, senior power trader and head of US Power Analysis at Axpo, says. "We value having complete access and control over our analytics and visualization tools. Snowflake allows us to quickly track and analyze the evolution of every forecast Amperon generates, which ultimately leads to better insights into our trading strategy."
It's official. Houston-based, AI-powered electricity forecasting and analytics services company Amperon Holdings is live in Europe.
The expansion, which Co-Founder and CEO Sean Kelly previously told InnovationMap about, is official, the company announced this month. In addition to the expansion, Amperon announced Jon Ecker as general manager, Europe, and Kelsey Hultberg as executive vice president, communications, and chief of staff.
Now, European companies that buy and sell energy in the renewable energy producers, financial institutions, and utilities markets can leverage Amperon's platform of AI and machine learning technologies to access short- and long-term forecasts for their individual meters and generation assets.
“As a warmer-than-expected June ushers in a hot summer, and increasing uncertainty looms for the calmer fall months due to the influx of wind and solar generation, we are eager to assist our European customers in navigating the power market volatility caused by heat waves, extreme weather events, and shifts in power usage across the region,” Kelly says in a news release.
“Our cutting-edge AI models are enabling our North American customers to benefit from data and asset optimization, on-site solar to commercial load management, and backup generation and we’re excited to bring these tools to our European customers,” he continues.
Leading the new initiative for Amperon is Ecker , who previously served as an executive at energy market simulation software company Energy Exemplar and as CEO of real-time energy data provider Genscape, which is now owned by Wood Mackenzie. He also co-founded at Energy Velocity, an energy data and software company now owned by Hitachi Energy.
“Amperon is providing North American, and now European renewable energy markets, with the critical tools they need to optimize their clean energy operations and support grid reliability,” Ecker says in the release. “As Europe faces high temperatures and rising power demand this summer, power market participants will need precise energy forecasting, and Amperon is looking forward to delivering these critical tools to help participants succeed.”
Hultberg joins Amperon from Houston-based Sunnova Energy International, where she was executive vice president of corporate communications and sustainability.
Founded in 2018, Amperon closed its series B round at $20 million last fall. This year, the company Amperon announced that it replatformed its AI-powered energy analytics technology onto Microsoft Azure. The partnership with the tech giant allows Amperon's energy sector clients to use Microsoft's analytics stack with Amperon data.
"For Amperon, 2024 is the year of partnerships," Kelly shares on the Houston Innovators Podcast. "I think you'll see partnership announcements here in the next couple of quarters."
Artificial intelligence is now everywhere. It is mentioned in every startup pitch deck, and every corporate roadmap claims to use it. However, many early-stage businesses struggle with the simple question, “What does AI actually mean for my business?”
In a recent podcast episode of EnergyTech Startups, Merab Momen, founder of AI CTO Services and a long time AI practitioner, explains why most founders misunderstand AI, how startups can practically apply it and why Houston is quietly becoming a serious hub for AI-driven innovation.
Filling the AI Leadership Gap
Merab’s career has spanned decades of technology transitions. He worked on neutral networks in the 1990s, constructed computer vision systems long before they were common, and helped install AI solutions inside huge industrial companies. However, he noticed a huge problem when generative AI started to explode into the mainstream-The requirement of a real partner by the founders for AI integration but inability to rely on a full-time CTO and project-based consultants.
“I really needed something which is much more engaging where I can give that partner-level advice to the founders,” he said. By giving firms on-demand access to high-level AI knowledge and expertise, his methodology enables them to analyse tools, steer clear of cost blunders and eventually transition to a permanent technology leader when the time is right.
AI is Older than Most People Think
Despite its recent rise in popularity, AI is nothing new. AI actually began in the 1950s. Merab in his conversation explained how he worked on his first AI project back in the year 1996 that worked perfectly, but the processing power wasn’t just there to make it practical. He continued how he utilized the swarm intelligence models to optimize supply chains, now referred to as MLPOs and data engineering.
From Language Models to Physical World
Much of the public conversation about AI revolves around chatbots and text generation. But Merab sees far greater potential in AI’s interaction with the physical world, especially in industrial settings. He emphasized edge computing and vision language models (VLMs) as significant advances in manufacturing and energy. This physical shift is opening doors for new opportunities for robotics, automated inspections, and industrial safety applications. Merab added that Houston is uniquely positioned for this transition.
Why Houston has an AI Advantage
Silicon Valley may dominate the AI headlines, but Merab believes Houston’s advantage lies beneath the surface. The city doesn’t lag in AI utilization; it just operates in industries where results show differently.
Machine learning isn’t new to Houston’s core industries. Energy companies, manufacturers, logistics providers, and healthcare systems have been using advanced analytics for decades. The difference lies in them innovating in industrial sectors rather than consumer technology.
What’s Next
With the AI CTO Services growing, Merab is working with startups across industries to deploy AI in practical, business-first ways.
He is more interested in assisting founders in finding answers to critical issues than following new trends.
For Houston’s energy and climate tech community, it needs to transform AI enthusiasm into real-world impact.
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.
CAMS will provide comprehensive asset management, operations, maintenance, regulatory compliance and remote operations services for the $220 million solar and battery storage project located in Lamar County, Texas, northeast of Dallas.
“The project underscores CAMS’ commitment to supporting dependable, grid-strengthening energy infrastructure across the United States,” Brian Ivany, EVP of CAMS Renewables, said in a news release. “Our team is proud to support Nexus and excited to apply our subject matter expertise and hands-on approach to ensure operational excellence and long-term success of the Goody project.”
Project Goody, or MRG Goody Solar and Storage, will feature a 172-megawatt solar facility paired with 237 megawatts of battery energy storage. The project will be connected to the ERCOT grid. Meta, the parent company of Facebook, has signed on as the power offtaker for the project.
Nexus Renewable Power develops, finances and operates solar and energy storage assets. It currently operates projects generating 325 megawatts of solar and 350 megawatts of battery storage, with another 300 megawatts of solar and 1 gigawatt of battery storage projects under construction, according to its website. Project Goody is the first in a series of renewable developments underway, according to Nexus.
CAMS manages and operates energy infrastructure assets for its clients. Last year, it added InfraRed Capital Partners, which owns the 202-megawatt Mesteño Wind Project in the Rio Grande Valley, to its customer list. It also rolled out services to help deliver power to meet the growing demand from AI data centers.
Project SunRope, a 347-megawatt solar project outside of Houston, has landed $394 million in construction financing.
The project, located in Wharton County, about 60 miles outside of Houston, is slated to begin commercial operation in Q3 2027 and aims to support emission reductions, grid reliability and affordability in one of the highest electricity-demand regions in Texas and the U.S. It’s being developed through a joint venture between San Antonio-based OCI Energy and leading Israeli solar company Arava Power. New York-based ING Capital underwrote the financing package.
“The close of construction financing for Project SunRoper represents an important milestone for OCI Energy and our partners,” Sabah Bayatli, resident of OCI Energy, said in a news release. “This transaction reflects our continued commitment to deliver high-quality, utility-scale solar projects that strengthen grid reliability and provide affordable energy infrastructure.”
The construction financing is supported by a 20-year power purchase agreement with a Fortune 100 company, according to the release. Other collaborators include BHI and Bank of Hapoalim, which provided financing support and letters of credit to support the development of the project.
This is the second transaction between OCI Energy and ING, as they previously worked together on financing for the Alamo City Battery Energy Storage System, a 120-megawatt battery energy storage system under development in Bexar County.
“This project exemplifies the high‑quality renewable infrastructure we seek to finance – a strong sponsor partnership, a long‑term contracted revenue profile, and a well‑located asset in one of the most dynamic power markets in the United States,” Sven Wellock, managing director at ING, added in the release. “We are proud to build on our existing relationship with OCI Energy and to partner with Arava Power on its continued expansion in the U.S. market, advancing a project that will deliver reliable, affordable clean energy for years to come.”
OCI Energy operates several utility-scale solar and battery energy storage system projects outside of the San Antonio area, as well as in Georgia and New Jersey. It has five other projects under construction outside of San Antonio and Waco, with more than 20 under development throughout the state.
