Houston climatech startup raises $29M funding round

fresh funding

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

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

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.

With the new funding, Nanotech plans to scale operations and expand its market reach for its products.

“We’re addressing one of the pressing and urgent challenges facing infrastructure owners today: controlling energy costs and extending asset life,” Mike Francis, CEO and co-founder of NanoTech Materials, said in a news release. “This financing marks a transformative moment for us. It allows us to rapidly scale production and bring our high-performance materials to market faster, while delivering measurable cost savings and redefining what resilience looks like in today’s built environment.”

Nanotech launched in 2020 and was the first company selected for Halliburton Labs. It moved into a 43,000-square-foot space in Katy in 2023. It brought on new partners that expanded the company's reach in the Middle East and Singapore the following year. Its technology was recognized as one of Time magazine's 200 Best Inventions of 2024.

“We were early investors in Nanotech Materials and are pleased to continue supporting the company as it becomes a leader in breakthrough materials science and technology,” John Chaney, investor at Goose Capital and board member at NanoTech, added in the release. “NanoTech’s ability to elevate fire resilience and energy efficiency in the built environment is critical for strengthening and hardening infrastructure. Its pioneered approach is transforming current building standards and making our lives safer.”

The company has secured $34.4 million in total to date, according to the release. It raised an oversubscribed funding round in 2023 and a $5 million seed round in 2020.

From Your Site Articles

Time named its top innovations of the year — and two Houston-born energy transition inventions made the cut. Photo via Getty Images

2 Houston energy transition companies recognized for creating top inventions of the year

bright ideas

Innovations from two Houston energy transition companies have been crowned among the top inventions of the year.

Time magazine’s "200 Best Inventions of 2024" identified top innovations across consumer goods, home health, robotics, sustainability, and two dozen other categories.

Fervo Energy, a provider of geothermal power, was recognized the Green Energy category for its FervoFlex system. As Time explains, the system enables horizontal drilling into hot rock under the earth’s surface and pumping in water to generate hot water and steam. The geothermal energy that’s produced can be stored and released for future use by Fervo customers.

Jack Norbeck, Fervo’s co-founder and chief technology officer, predicts that by 2050, geothermal energy will become “the backbone of the decarbonized energy system.”

In September, Fervo secured a $100 million bridge loan for the first phase of its ongoing Cape Station project in Utah, which is being touted as the world’s largest geothermal energy plant. Slated for completion in June 2026, this initial phase is expected to generate 90 megawatts of renewable energy. Ultimately, the plant is supposed to supply 400 megawatts of clean energy by 2028 for customers in California.

Time also lauded NanoTech Materials among its Manufacturing and Materials honorees for its Insulative Ceramic Particle. This powder can be added to materials like drywall or shingles to improve fire resistance and decrease heat penetration, according to Time. NanoTech’s Wildfire Shield coating for buildings contains the powder. Wildfire Shield prevents damage to materials and harm from noxious smoke.

NanoTech’s other product, Cool Roof Coat, is painted on a building to decrease HVAC use. This year, NanoTech moved into a 43,000-square-foot space in Katy, Texas, and brought on new partners that expanded the company's reach in the Middle East and Singapore.

A third Houston company was also praised byTime is BiVACOR — named to its Experimental category of the list. The full list of this year's top inventions is available online.

———

This article originally ran on InnovationMap.

Nearly 20 Houston startups and innovators were named finalists for the 2024 Houston Innovation Awards this week. Photo via Getty Images

Houston energy transition innovators named finalists for annual awards program

best of the rest

The Houston Innovation Awards have named its honorees for its 2024 awards event, and several clean energy innovators have made the cut.

The finalists, which were named on EnergyCapital's sister site InnovationMap this week, were decided by this year's judges after they reviewed over 130 applications. More 50 finalists will be recognized in particular for their achievements across 13 categories, which includes the 2024 Trailblazer Legacy Awards that were announced earlier this month.

All of the honorees will be recognized at the event on November 14 and the winners will be named. Registration is open online.

Representing the energy industry, the startup finalists include:

Amperon, an AI platform powering the smart grid of the future, was named a finalist in the Energy Transition Business category.
ARIXTechnologies, an integrated robotics and data analytics company that delivers inspection services through its robotics platforms, was named a finalist in the Energy Transition Business and the AI/Data Science Business categories.
CLS Wind, a self-erection wind turbine tower system provider for the wind energy industry, was named a finalist in the Minority-Founded Business category.
Corrolytics, a technology startup founded to solve microbiologically influenced corrosion problems for industrial assets, was named a finalist in the Minority-Founded Business and People's Choice: Startup of the Year categories.
Elementium Materials, a battery technology with liquid electrolyte solutions, was named a finalist in the Energy Transition Business category.
Enovate Ai, a provider of business and operational process optimization for decarbonization and energy independence, was named a finalist in the AI/Data Science Business category.
FluxWorks, developer and manufacturer of magnetic gears and magnetic gear-integrated motors, was named a finalist in the Deep Tech Business category.
Gold H2, a startup that's transforming depleted oil fields into hydrogen-producing assets utilizing existing infrastructure, was named a finalist in the Minority-Founded Business and the Deep Tech Business categories.
Hertha Metals, developer of a technology that cost-effectively produces steel with fewer carbon emissions, was named a finalist in the Deep Tech Business category.
InnoVentRenewables, a startup with proprietary continuous pyrolysis technology that converts waste tires, plastics, and biomass into valuable fuels and chemicals, was named a finalist in the Energy Transition Business and the People's Choice: Startup of the Year categories.
NanoTech Materials, a chemical manufacturer that integrates novel heat-control technology with thermal insulation, fireproofing, and cool roof coatings to drastically improve efficiency and safety, was named a finalist in the Scaleup of the Year category.
SageGeosystems, an energy company focused on developing and deploying advanced geothermal technologies to provide reliable power and sustainable energy storage solutions regardless of geography, was named a finalist in the Energy Transition Business category.
Square Robot, an advanced robotics company serving the energy industry and beyond by providing submersible robots for storage tank inspections, was named a finalist in the Scaleup of the Year category.
Syzygy Plasmonics, a company that's decarbonizing chemical production with a light-powered reactor platform that electrifies the production of hydrogen, syngas, and fuel with reliable, low-cost solutions, was named a finalist in the Scaleup of the Year category.
TierraClimate, a software provider that helps grid-scale batteries reduce carbon emissions, was named a finalist in the Energy Transition Business category.
Voyager Portal, a software platform that helps commodity traders and manufacturers in the O&G, chemicals, agriculture, mining, and project cargo sectors optimize the voyage management lifecycle, was named a finalist in the AI/Data Science Business category.

In addition to the startup finalists, two energy transition-focused organizations were recognized in the Community Champion Organization category, honoring a corporation, nonprofit, university, or other organization that plays a major role in the Houston innovation community. The two finalists in that category are:

Energy Tech Nexus, a new global energy and carbon tech hub focusing on hard tech solutions that provides mentor, accelerator and educational programs for entrepreneurs and underserved communities.
Greentown Houston, a climatetech incubator and convener for the energy transition community that provides community engagement and programming in partnership with corporations and other organizations.

Lastly, a few energy transition innovators were honored in the individual categories, including Carlos Estrada, growth partner at First Bight Ventures and head of venture acceleration at BioWell; Juliana Garaizar, founding partner of Energy Tech Nexus; and Neal Dikeman, partner at Energy Transition Ventures.

NanoTech is targeting new overseas markets for its energy efficiency products. Photo via Getty Images

Promising Houston startup expands energy efficiency product to Middle East, Singapore

big move

NanoTech Materials has announced a big expansion for its business.

The Houston company, which created a roof coating using nanotechnology that optimizes energy efficiency, has partnered with Terminal Subsea Solutions Marine Service SP to bring its products to the Gulf Cooperation Council and Singapore. TSSM will become a partner of Houston’s NanoTech Materials products, which will include the Cool Roof Coat, Vehicular Coat, and Insulative Coat for the GCC countries and Singapore.

NanoTech Materials technology that ranges from roof coatings on mid- to low-rise buildings to shipping container insulation to coating trucks and transportation vehicles will be utilized by TSSM in the partnership. NanoTech’s efforts are focused on heat mitigation that can reduce energy costs, enhance worker safety, and minimize business risks in the process.

“Businesses and communities within the GCC and Singapore feel the impact of extreme temperatures and longer Summers more acutely than any other region in the world,” Mike Francis, CEO of NanoTech Materials, says in a news release. “We have an opportunity to make a real impact here through reduced energy load, cooler and safer working conditions, and a reduced carbon emissions output from the hottest, driest place on earth. We are incredibly excited to be partnering with our colleagues at TSSM to bring this powerful technology to the region.”

One of the areas that will benefit from this collaboration is the Middle East. The GCC region is characterized by a desert climate, which has average annual temperature reaching 107.6°F and summer peaks climbing as high as 130°F. The effects of these extreme conditions can be dangerous for workers especially with strict labor laws mandating midday work bans under black flag conditions, which can result in productivity losses as well.

NanoTech’s proprietary technology, the Insulative Ceramic Particle (ICP), will be used to address challenges in energy efficiency and heat control in the logistics and built environment sector. The platform can be integrated into many applications, and the impact can range from reducing greenhouse gas emissions to protecting communities that are wildfire-prone. The core of the technology has a lower conductivity than aerogels. It also has a “near-perfect emissivity score” according to the company. The NanoTech ICP is integrated with base matrix carriers; building materials, coatings, and substrates, which gives the materials heat conservation, rejection, or containment properties.

By combining the ICP into an acrylic roof coating, NanoTech has created the Cool Roof Coat, which reflects sunlight and increases the material's heat resistance. This can lower indoor temperatures by 25 to 45°F in single-story buildings and reduce the carbon emissions of mid to low-rise buildings. This can potentially equal energy savings from 20 percent up to 50 percent, which would surpass the average 15 percent savings of traditional reflective only coatings.

“This technology will have a huge impact on supporting the region's aggressive climate initiatives, such as Saudi Arabia’s Green Initiative, aiming to reduce carbon emissions by 278 million tons annually by 2030,” Jameel Ahmed, managing director at TSSM, says in the release. “The regional efforts to enhance climate action and economic opportunities through substantial investments in green technologies and projects are evident, and we are proud to be offering a product that can make a difference.”

NanoTech says its coating maintains its effectiveness over time and doesn’t suffer UV degradation issues which are helpful, especially in extreme weather conditions workers and businesses face in regions like the Middle East.

With a new partnership, NanoTech is hoping to help cool off Arizona. Photo via nanotechmaterials.com

Houston eco-focused materials startup launches initiative in Arizona

stay cool

Home to a persistent dry heat, Arizona is a prime market for energy-reducing tools and technologies — and one Houston company is jumping on the opportunity.

NanoTech Materials, which created the Cool Roof Coat that can extend a building's roof lifespan and reduce energy costs by seven to 15 percent, has announced a joint campaign with Cool Roof Coating Systems, a subsidiary of Tesson Roofing. Cool Roof Coating Systems will provide the installation of NanoTech's product, which is available nationwide.

"NanoTech products are designed to provide extraordinary heat rejection, and the team at Tesson is among the very best in the roof restoration market, which made a joint initiative in the extreme heat and intense Arizona sun a natural fit," Mike Francis, CEO and founder at NanoTech Materials, says in a news release. "As a direct-to-installer product, we rely on collaboration with highly qualified contractors. I am delighted at the founding of Cool Roof Coating Systems to bring a new level of sustainability to Arizona.

"Our vision at NanoTech is to transform sustainability in the built environment, starting with one of the biggest energy drains and sources of carbon emissions, one roof at a time," he adds.

The elastic, polymeric roof remediation solution is able to cut internal temperatures by 25°F to 30°F, which can be responsible for cutting carbon emissions by 76 tons annually in a 25,000-square-foot building, according to the company.

"Put simply, the heat-rejection performance of NanoTech Cool Roof Coat is so compelling that Tesson decided to form an Arizona-based company to tackle one of the hottest markets in the U.S. directly," Brett Tesson, president at Cool Roof Coating Systems, says in the release. "During my two decades in the roofing industry, NanoTech Cool Roof Coat is by far the most game-changing product for the roof restoration business because it allows us to coat, waterproof and protect, while adding unprecedented savings in HVAC cooling for our customers."

Last summer, NanoTech announced an oversubscribed funding round that brought onboard a handful of new investors. The details of the round were not disclosed, but the round was raised to help the company continue to roll out its product nationally.

Ad Placement 300x100

Ad Placement 300x600

CultureMap Emails are Awesome

Property Showcase

Electric truck charging network expands to Houston-Dallas freight corridor

electric trucking

Greenlane Infrastructure, an electric public charging station developer and operator, is expanding outside of its home state of California and into Texas.

The Santa Monica-based company plans to launch its high-power charging sites along the Dallas–Houston I-45 corridor, which is one of the highest-volume commercial trucking routes in the country, according to a news release from Greenlane.

The sites will feature 6-8 pull-through lanes with chargers supporting combined charging system (CCS) and megawatt charging system (MCS) connectors that allow electric truck drivers to recharge their vehicles during standard rest periods. They will also offer tractor parking and charging, as well as operations that will allow for overnight stops.

Drivers can reserve chargers in advance, monitor charging activity in real time, and manage billing from the Greenlane Edge platform.

“Our customers are making commitments to electrify their fleets, and they need a charging network that can grow alongside them,” Patrick Macdonald-King, CEO of Greenlane, said in the release. “This is the first leg of the Texas triangle, one of the more important freight arteries in the country, so bringing high-power charging there is the next logical step in building a network that serves how freight moves across America.”

Greenlane is also expanding across the West Coast, with five locations under development in California and Nevada. It opened its flagship Greenlane Center in Colton, California, in April 2025. The company plans to open locations in Blythe, California, and Port of Long Beach this year.

Greelane was founded in 2023 as a joint venture between Daimler Truck North America, NextEra Energy Resources and BlackRock. It has secured partnerships with electric long-haul truck developer Windrose Technology, Velocity Truck Centers and Volvo Trucks North America.

Major Oxy announcement, new AI platform, and more Houston energy headlines

Trending News

Editor's note: The top Houston energy headlines for the first half of May include the rollout of a new AI platform and a big announcement from Oxy. Plus, a nuclear reactor company opens a Houston office and a local battery recycling company secures millions in financing. Here are the most-read EnergyCapitalHTX stories published May 1-14, 2026:

1. Houston AI startup rolls out platform to reshape oil and gas workflows

Houston-based Collide is looking to solve AI issues in the energy industry from within. Co-founded by former oil roughneck Collin McLelland, the company has developed AI software for operators and field teams, shaped by firsthand oilfield experience. Its AI-native platform “retrieves and synthesizes data from authoritative sources to deliver accurate, cited, and energy-focused insights to oil and gas professionals,” it says. Continue reading.

2. Houston battery recycling company secures $32M in financing

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

3. Modular nuclear reactor company opens office in Houston

The nuclear energy renaissance continues in Texas with an announcement by NuScale Power. The Oregon-based provider of proprietary and innovative advanced small modular reactor (SMR) nuclear technology announced in April it would be opening office space in Houston’s CityCentre. “Opening this space in Houston underscores our commitment to meeting rising energy demand with safe, scalable nuclear technology,” John Hopkins, NuScale president and CEO, said. Continue reading.

4. Oxy officially announces CEO transition, names successor

Houston-based Occidental (Oxy) has officially announced its longtime CEO's retirement and her successor. Oxy shared that Vicki Hollub will retire June 1. Reuters first reported Hollub's plan to retire in March, but a firm date had not been set. Hollub will remain on Oxy's board of directors. Richard Jackson, who currently serves as Oxy's COO, will replace Hollub in the CEO role. Continue reading.

5. Texas data center proposed by U.S. Army could use more power than El Paso

The U.S. Army is proposing developing a gargantuan, 3-gigawatt data center complex on Fort Bliss property that within a few years would consume more electricity than all of El Paso Electric’s 460,000 customers combined – even as questions about its development, water usage and air pollution remain unanswered. If built, it would be the third major data center project in the El Paso region, along with Meta Platform’s $10 billion facility in Northeast and the $165 billion Project Jupiter campus that Oracle and OpenAI are building in Santa Teresa, New Mexico. The combined scale and size of the three facilities could quickly transform the Borderland into one of the nation’s core hubs of power generation and AI infrastructure. Continue reading.

Houston startup lands $1B from Blackstone and Halliburton, plans acquisition

power deal

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

The investment comes 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.

Aside from the $1 billion investment, VoltaGrid has agreed to buy Propell Energy Technology, a VoltaGrid supplier, for an undisclosed amount. Propell offers a natural gas power generation platform for AI data centers. VoltaGrid plans to add two manufacturing plants at Propell’s facilities in Granbury, a Dallas-Fort Worth suburb.

The investment and acquisition deals are expected to close in mid-2026.

Funds managed by Blackstone Tactical Opportunities are contributing to the $1 billion investment. William Nicholson, managing director of Blackstone, called VoltaGrid “a highly differentiated platform addressing one of the most important infrastructure needs of the AI era: reliable, rapidly deployable power. This investment is a strong example of Tac Opps’ focus on providing flexible, scaled capital to exceptional entrepreneurs and businesses operating in Blackstone’s highest-conviction investment themes.”

Nathan Ough, founder and CEO of VoltaGrid, said in a release that the Blackstone investment “is a powerful endorsement of the platform we have built and the role VoltaGrid is playing in delivering the energy infrastructure of the AI era.”

Last October, VoltaGrid and Halliburton said they had forged a partnership to supply power for data centers around the world, with the Middle East picked as the initial target. Two months later, the companies said they had arranged the manufacturing of 400 megawatts of natural gas power systems that’ll be delivered in 2028 to support new data centers in the Eastern Hemisphere.

Jeff Miller, president and CEO of Halliburton, said his company’s investment in VoltaGrid “reflects our shared focus on long-term solutions for the world’s most demanding power environments, and advances VoltaGrid’s ability to deliver reliable, distributed power at scale.”

View All Listings

ENERGYCAPITALHTX EMAILS ARE AWESOME