Meet 5 of the fastest-growing scaleup companies in Houston

houston innovation awards

These five scaleups stood out to the judges of the 2024 Houston Innovation Awards. Photo via Getty Images

The 2024 Houston Innovation Awards will feature a new category: Scaleup of the Year, which honors a Bayou City company that's seen impressive growth in 2024.

From biotech companies to decarbonization startups, the inaugural finalists have expanded internationally, moved to larger facilities, completed clinical trials and more. Read on to learn more about these fast-growing startups.

Secure your tickets to the 2024 Houston Innovation Awards next Thursday, November 14, at TMC Helix Park.

Cart.com, a unified commerce and logistics solutions provider for B2C and B2B companies

With the acquisition of Amify, Cart.com has expanded its workforce and grown its suite of services. Photo courtesy of Cart.com

Clinching unicorn status with its 2023 series C raise, Cart.com is on a mission to unify commerce across sales and distribution channels and digital and physical capabilities with its omnichannel enterprise-grade software, services and logistics.

Founded in 2020 with nine acquisitions and $759.2 million raised to date, according to Crunchbase, Cart.com's recent achievements includes acquiring Pacsun’s fulfillment operators, brining a 2 million-square-foot facility online, expanding its executive team, and more.

"In the last 12 months, Cart.com has dramatically grown its fulfillment network’s scale and technological capabilities," writes CEO Omail Tariq in his Houston Innovation Awards application.

"We have been laser-focused on improving quality, performance and efficiency at scale while continuing to aggressively grow our customer base, expand our capabilities to customers in new industries and grow our physical presence to new locations," he continues. "Prioritizing our strategic growth initiatives has been critical in the current macroeconomic environment as profitable growth remains paramount for our team."

In 2021, Cart.com moved its headquarters to Austin, with most of the leadership team remaining in Houston. Two years later, the company announced its HQ return to the Bayou City.

"We've found Houston's business and university communities to be incredibly supportive of our efforts and have found the city to be a place that is both easier and more affordable to bring together our global employee population at more regular intervals," Tariq adds in the app.

Coya Therapeutics, a clinical-stage company developing therapies for neurodegenerative, autoimmune, and metabolic diseases

Houston company with revolutionary neurodegenerative disease treatment shares milestones since IPOCoya Therapeutics rang the closing bell at Nasdaq last week, celebrating six months since its IPO, new data from trials, and additions to its team. Photo via LinkedIn

Revolutionary biotech company Coya Therapeutics Inc. (NASDAQ: COYA) may have closed its IPO in January 2023 for more than $15 million, but the company has made some of its most significant strides in the development of its lead product that prevents the further spreading of neurodegenerative diseases this year.

Known as COYA 302, the product uses a unique dual mechanism that is now being developed for the treatment of Amyotrophic Lateral Sclerosis (ALS), Frontotemporal Dementia (FTD), Parkinson’s disease and Alzheimer’s disease. The company published its phase 1 proof-of-concept study in the peer-reviewed journal Frontiers in Neurology that showed COYA 302's ability to stop clinical progression in ALS at 24 weeks in combination therapy, which helped earn the company a $5 million in strategic investment from the Alzheimer’s Drug Discovery Foundation to continue to develop the product for a planned Phase 2 trial focused on FTD.

Last year the company also added to its C Suite, naming Dr. Arun Swaminathan as chief business officer and Dr. Fred Grossman as president and chief medical officer.

Coya merged with Nicoya Health Inc. and raised $10 million in its series A in 2020.

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

Growing Houston startup moves into 43,000-square-foot facility amid 'hypergrowth phase'NanoTech Materials celebrated its move into a new facility — a 43,000-square-foot space in Katy, Texas, this week

Mike Francis, co-founder and CEO of NanoTech Materials, told InnovationMap earlier this year that it was in a "hype growth" phase—and meant it.

NanoTech, known for its proprietary Insulative Ceramic ParticleTM (ICP) that uses nanotechnology to optimize energy efficiency and heat control in the built environment, expanded into a new 43,000-square-foot facility this year and tripled its valuation in the last two years, according to its Innovation Awards application. The company also expanded into the Middle East and Singapore and successfully scaled up its NanoTech Cool Roof Coat to commercial markets.

The company closed a $5 million seed round in 2020 and an oversubscribed Series A round last year for $13 million. It was the first company selected for the Houston-based Halliburton Labs in 2021 and joined the Rice Alliance Clean Energy Accelerator in 2023.

Square Robot, an advanced robotics company serving the energy industry and beyond by providing submersible robots for storage tank inspections

Square Robot has a team of 15 in Houston. Photo courtesy\u00a0of Square Robot

Submersible robotics company Square Robot launched its Houston office in 2019 and expanded in the Bayou City this past year.

According to the company's Innovation Award application, the company doubled its fleet of autonomous, submersible robots that service the energy industry, deploying to Malaysia, Vietnam, Thailand, Australia, Kuwait and Saudi Arabia. Its robots are specifically used for storage tank inspections and eliminating the need for humans to enter dangerous and toxic environments.

Square Robot moved to a new, customer-facing Houston facility this year and also developed a new innovative technology that's able to gather phased ultrasonic readings on insulated tank shells while the tank is operational.

The company closed a Series A round in 2018 for $6 million.

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

Houston climatetech startup selected for inaugural global entrepreneur competitionSyzygy Plasmonics is going to be competing in Gastech's new startup competition. Photo courtesy of Syzygy

Known for the world’s first light-powered reactor cell for industrial chemical reactions, Syzygy Plasmonics began taking orders earlier this year for its Rigel reactor cell after meeting initial performance targets. The cell enables a customer to produce up to five tons of low-carbon hydrogen per day.

The groundbreaking technology earned the company regional, national and global attention. Fast Company magazine placed the company on its energy innovation list. It was also named a finalist for Ernst & Young’s Entrepreneur Of The Year 2024 Gulf South Award and was invited to participate in Gastech's global entrepreneur competition.

The company most recently raised $76 million in a Series C round in 2022.

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From green energy to consumer tech, Time names its top innovations of the year — and three Houston-born inventions made the cut. Photo via Getty Images

3 Houston tech companies recognized for creating top inventions of the year

best of the rest

Innovations from three Houston 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.

The third Houston company to be praised by Time is BiVACOR — named to its Experimental category of the list. This year, the company’s artificial heart has kept three U.S. patients alive long enough to wait for donor organs, according to Time, the first of these operations took place this summer in Houston.

Dr. William Cohn, chief medical officer of BiVACOR, previously told InnovationMap that while the Total Artificial Heart is being used currently as a "bridge-to-transplant" device, he believes it has the potential to be a permanent solution for the 200,000 patients who die of heart failure annually. Last year, only around 4,000 patients were able to receive heart transplants.

The full list of this year's top inventions is available online.

Want to work for one of the top startups in Houston? These ones are hiring. Photo via Getty Images

Where to work: These 2024 Houston Innovation Awards finalists are hiring

growing biz

About a third of this year's startup finalists for the Houston Innovation Awards are hiring — from contract positions all the way up to senior-level roles.

The finalists, announced last week, range from the medical to energy to AI-related startups and will be celebrated next month on Thursday, November 14, at the Houston Innovation Awards at TMC Helix Park. Over 50 finalists will be recognized for their achievements across 13 categories, which includes the 2024 Trailblazer Legacy Awards that were announced earlier this month.

Click here to secure your tickets to see which growing startups win.

Let's take a look at where you could land a job at one of Houston's top startups.

Double-digit growth

When submitting their applications for the 2024 Houston Innovation Awards, every startup was asked if it was hiring. Four Houston startups replied that they are growing their teams rapidly.

Houston e-commerce startup Cart.com, one of the city's few $1 billion-plus “unicorns," reported that it is hiring approximately 50 new employees. The company, which focuses on commerce and logistics software development, secured $105 million in debt refinancing from investment manager BlackRock this summer following a $25 million series C extension round that brought Cart.com’s Series C total to $85 million. It currently has about 1,500 employees and 4 offices in three companies since it was founded in 2020, according to its website.

Houston energy tech company Enovate Ai (previously known as Enovate Upstream) reported that it is hiring 10-plus positions. The company, with 35 current employees, helps automate business and operational processes for decarbonization and energy optimization. Its CEO and founder, Camilo Mejia, sat down for an interview with InnovationMap in 2020. Click here to read the Q&A.

Square Robot is hiring about 10 new Houston employees and 15 total between Houston and other markets, according to its application. The advanced robotics company was founded in Boston in 2016 and opened its Houston office in August 2019. It develops submersible robots for the energy industry, specifically for storage tank inspections and eliminating the need for humans to enter dangerous and toxic environments. Last year it reported to be hiring 10 to 30 employees as well, ahead of the 2023 Houston Innovators Award. It currently has 25 Houston employees and about 50 nationally.

InnoVent Renewables LLC is also hiring 15 new employees to be based in Mexico. The company launched last year with its proprietary continuous pyrolysis technology that can convert waste tires, plastics, and biomass into fuels and chemicals. The company scaled up in 2022 and has operations in Pune, India, and Monterrey, Mexico, with plans for aggressive growth across North America and Latin America. It has 20 employees in Mexico and one in Houston currently.

Senior roles

Geothermal energy startup Sage Geosystems reported that it is looking to fill two senior roles in the company. It also said it anticipates further staff growth after its first commercial energy storage facility is commissioned at the end of the year in the San Antonio metro area. The company also recently expanded its partnership with the United States Department of Defense's Defense Innovation Unit and announced this month that it was selected to conduct geothermal project development initiatives at Naval Air Station in Corpus Christi. It has 12 full-time employees, according to its application.

Steady growth

Other companies reported that they are hiring a handful of new workers, which for some will increase headcount by about 50 percent to 100 percent.

Allterum Therapeutics reported that it is adding six employees to its current team of 13. The biopharmaceutical company that is under the Fannin Partners portfolio of med tech companies was awarded a $12 million product development grant from the Cancer Prevention and Research Institute of Texas this spring.

Dauntless XR will add between five and eight employees, according to its application. It currently has four employees. The augmented reality software company, originally founded as Future Sight AR in 2018, recently secured a NASA contract for space weather technology after rebranding and pivoting. The company's CEO, Lori-Lee Elliott, recently sat down with the Houston Innovators Podcast. Click here to hear the interview.

Syzygy Plasmonics is hiring four positions to add to its team of 120. The company was named to Fast Company's energy innovation list earlier this year.

Venus Aerospace is adding five to 10 key hires to its team of 72. Andrew Duggleby founded the company with his wife and CEO Sassie in 2020, before relocating to the Houston Spaceport in 2021. Last year, Venus raised a $20 million series A round, and it successfully ran the first long-duration engine test of their Rotating Detonation Rocket Engine in partnership with the Defense Advanced Research Projects Agency, or DARPA, earlier this year.

Seeking selectively

Other finalists are adding to their teams with a handful of new hires of contract gigs.

InformAI, developing the commercialization of an AI-enabled organ transplant informatics platform, is hiring one or two team members.
Voyager Portal, a logistics SaaS startup in the maritime shipping industry, is adding two to three employees in sales and product development roles, one of which will be in Houston.
Speakerbox Media, a B2B podcasting agency, is hiring two contract workers.
Passport Journeys, an online therapy app tailored for the mother-daughter dynamic, reported that it is hiring an unlimited number of contract therapists.

Future roles

Other finalists reported that they are currently not hiring, but had plans to in the near future.

NanoTech Materials Inc., which recently moved to a new facility, is not currently. Hiring but said it plans with new funding during its series B.

Renewable energy startup CLS Wind is not hiring at this time but reported that it plans to when the company closes funding in late 2024.

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.

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This article originally ran on EnergyCapital.

The 17 finalists are competing for Ernst & Young’s Entrepreneur Of The Year 2024 Gulf South Award. Photo via Getty Images

17 Houston entrepreneurs named finalists in annual regional competition

on to the next round

Entrepreneurs from the Houston area have been named finalists for one of the region’s most prestigious business awards.

The 17 finalists are competing for Ernst & Young’s Entrepreneur Of The Year 2024 Gulf South Award. The Gulf South region includes parts of Texas, along with Louisiana and Mississippi.

An independent panel of judges selected the 48 finalists. Contenders were evaluated based on their demonstration of building long-term value through factors such as entrepreneurial spirit, purpose, growth, and impact.

The Houston-area finalists are:

Shannon Payne, Allied Fire Protection, Pearland
Jay McEntire IV, Arva Intelligence, Houston
Andrew Levy, Avelo Airlines, Houston
Derek Maetzold, Castle Biosciences, Friendswood
Scott Aronstein, Connectivity Source, Houston
Joshua Weisman, Construction Concepts, Houston
Feras Moussa and Ben Suttles, Disrupt Equity, Houston
John Poindexter, J.B. Poindexter, Houston
James Ross, LJA Engineering, Houston
Asher Kazmann, Locke Solutions, Houston
Chad Millis, Millis, Missouri City
Mike Francis, NanoTech Materials, Houston
Stuart Hinchen and Peter Jenkins, Quva Pharma, Sugar Land
Trevor Best and Suman Khatiwada, Syzygy Plasmonics, Houston
Hal Brumfield, Tachus Fiber Internet, The Woodlands
Jared Boudreaux, Vector Controls and Automation Group, Pearland
Ting Qiao, Wan Bridge, Houston

“The finalists of this year are audacious entrepreneurs who are making a significant impact in their respective industries and communities,” says Anna Horndahl, an EY partner and co-director of the EOY Gulf South Program.

“These pioneers, chosen by an independent panel of judges, showcase relentless commitment to their businesses, customers and communities. We are thrilled to acknowledge their accomplishments,” adds Travis Garms, an EY partner and co-director of the EOY Gulf South Program.

Here are the top Houston innovation news stories you need to know about from this week. Photo via Getty Images

Houston's health tech wins, startup opens new facility, and more trending innovation news

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Houston climbs to top 10 spot on North American tech hubs index

tech report

Houston already is the Energy Capital of the World, and now it’s gaining ground as a tech hub.

On Site Selection magazine’s 2026 North American Tech Hub Index, Houston jumped to No. 10 from No. 16 last year. The index relies on data from Site Selection as well as data from CBRE, CompTIA and TeleGeography to rank the continent’s tech hotspots. The index incorporates factors such as internet connectivity, tech talent and facility projects for tech companies.

In 2023, the Greater Houston Partnership noted the region had “begun to receive its due as a prominent emerging tech hub, joining the likes of San Francisco and Austin as a major player in the sector, and as a center of activity for the next generation of innovators and entrepreneurs.”

The Houston-area tech sector employs more than 230,000 people, according to the partnership, and generates an economic impact of $21.2 billion.

Elsewhere in Texas, two other metros fared well on the Site Selection index:

Dallas-Fort Worth nabbed the No. 1 spot, up from No. 2 last year.
Austin rose from No. 8 last year to No. 7 this year.

San Antonio slid from No. 18 in 2025 to No. 22 in 2026, however.

Two economic development officials in DFW chimed in about the region’s No. 1 ranking on the index:

“This ranking affirms what we’ve long seen on the ground — Dallas-Fort Worth is a top-tier technology and innovation center,” said Duane Dankesreiter, senior vice president of research and innovation at the Dallas Regional Chamber. “Our region’s scale, talent base, and diverse strengths … continue to set DFW apart as a national leader.”
“Being recognized as the top North American tech hub underscores the strength of the entire Dallas-Fort Worth region as a center of innovation and next-generation technology,” said Robert Allen, president and CEO of the Fort Worth Economic Development Partnership.

While not directly addressing Austin’s Site Selection ranking, Thom Singer, CEO of the Austin Technology Council, recently pondered whether Silicon Hills will grow “into the kind of community that other cities study for the right reasons.”

“Austin tech is not a club. It is not a scene. It is not a hashtag, a happy hour, or any one place or person,” Singer wrote on the council’s blog. “Austin tech is an economic engine and a global brand, built by thousands of people who decided to take a risk, build something, hire others, and be part of a community that is still young enough to reinvent itself.”

South of Austin, Port San Antonio is driving much of that region’s tech activity. Occupied by more than 80 employers, the 1,900-acre tech and innovation campus was home to 18,400 workers in 2024 and created a local economic impact of $7.9 billion, according to a study by Zenith Economics.

“Port San Antonio is a prime example of how innovation and infrastructure come together to strengthen [Texas’] economy, support thousands of good jobs, and keep Texas competitive on the global stage,” said Kelly Hancock, the acting state comptroller.

14 Houston startups starting 2026 with fresh funding

cha-ching

Houston startups closed out the last half of 2025 with major funding news.

Here are 14 Houston companies—from groundbreaking energy leaders to growing space startups—that secured funding in the last six months of the year, according to reporting by InnovationMap and our sister site, EnergyCapitalHTX.com.

Did we miss a funding round? Let us know by emailing innoeditor@innovationmap.com.

Fervo Energy

Fervo Energy has closed an oversubscribed Series E. Photo via Fervo Energy

Houston-based geothermal energy company Fervo Energy closed an oversubscribed $462 million series E funding round, led by new investor B Capital, in December.

The company also secured $205.6 million from three sources in June.

“Fervo is setting the pace for the next era of clean, affordable, and reliable power in the U.S.,” Jeff Johnson, general partner at B Capital, said in a news release.

The funding will support the continued buildout of Fervo’s Utah-based Cape Station development, which is slated to start delivering 100 MW of clean power to the grid beginning in 2026. Cape Station is expected to be the world's largest next-generation geothermal development, according to Fervo. The development of several other projects will also be included in the new round of funding. Continue reading.

Square Robot

Houston robotics co. unveils new robot that can handle extreme temperatures

Square Robot's technology eliminates the need for humans to enter dangerous and toxic environments. Photo courtesy of Square Robot

Houston- and Boston-based Square Robot Inc. announced a partnership with downstream and midstream energy giant Marathon Petroleum Corp. (NYSE: MPC) last month.

The partnership came with an undisclosed amount of funding from Marathon, which Square Robot says will help "shape the design and development" of its submersible robotics platform and scale its fleet for nationwide tank inspections. Continue reading.

Eclipse Energy

Eclipse Energy and Weatherford International are expected to launch joint projects early this year. Photo courtesy of Eclipse Energy.

Oil and gas giant Weatherford International (NASDAQ: WFRD) made a capital investment for an undisclosed amount in Eclipse Energy in December as part of a collaborative partnership aimed at scaling and commercializing Eclipse's clean fuel technology.

According to a release, joint projects from the two Houston-based companies are expected to launch as soon as this month. The partnership aims to leverage Weatherford's global operations with Eclipse Energy's pioneering subsurface biotechnology that converts end-of-life oil fields into low-cost, sustainable hydrogen sources. Continue reading.

Venus Aerospace

Lockheed Martin Ventures says it's committed to helping Houston-based Venus Aerospace scale its technology. Photo courtesy Venus Aerospace

Venus Aerospace, a Houston-based startup specializing in next-generation rocket engine propulsion, has received funding from Lockheed Martin Ventures, the investment arm of aerospace and defense contractor Lockheed Martin, for an undisclosed amount, the company announced in November. The product lineup at Lockheed Martin includes rockets.

The investment follows Venus’ successful high-thrust test flight of its rotating detonation rocket engine (RDRE) in May. Venus says it’s the only company in the world that makes a flight-proven, high-thrust RDRE with a “clear path to scaled production.”

Venus says the Lockheed Martin Ventures investment reflects the potential of Venus’ dual-use technology for defense and commercial uses. Continue reading.

Koda Health

Tatiana Fofanova and Dr. Desh Mohan, founders of Koda Health, which recently closed a $7 million series A. Photo courtesy Koda Health.

Houston-based digital advance care planning company Koda Health closed an oversubscribed $7 million series A funding round in October.

The round, led by Evidenced, with participation from Mudita Venture Partners, Techstars and Texas Medical Center, will allow the company to scale operations and expand engineering, clinical strategy and customer success, according to a news release.

The company shared that the series A "marks a pivotal moment," as it has secured investments from influential leaders in the healthcare and venture capital space. Continue reading.

Hertha Metals

U.S. Rep. Morgan Luttrell, a Magnolia Republican, and Hertha Metals founder and CEO Laureen Meroueh toured Hertha’s Conroe plant in August. Photo courtesy Hertha Metals/Business Wire.

Conroe-based Hertha Metals, a producer of substantial steel, hauled in more than $17 million in venture capital from Khosla Ventures, Breakthrough Energy Fellows, Pear VC, Clean Energy Ventures and other investors.

The money was put toward the construction and the launch of its 1-metric-ton-per-day pilot plant in Conroe, where its breakthrough in steelmaking has been undergoing tests. The company uses a single-step process that it claims is cheaper, more energy-efficient and equally as scalable as conventional steelmaking methods. The plant is fueled by natural gas or hydrogen.

The company, founded in 2022, plans to break ground early this year on a new plant. The facility will be able to produce more than 9,000 metric tons of steel per year. Continue reading.

Helix Earth Technologies, Resilitix Intelligence and Fluxworks Inc.

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, Resilitix Intelligence and Fluxworks Inc. each secured $1.2 million in federal funding through the Small Business Innovation Research (SBIR) Phase II grant program this fall.

The three grants from the National Scienve foundation officially rolled out in early September 2025 and are expected to run through August 2027, according to the NSF. The SBIR Phase II grants support in-depth research and development of ideas that showed potential for commercialization after receiving Phase I grants from government agencies.

However, congressional authority for the program, often called "America's seed fund," expired on Sept. 30, 2025, and has stalled since the recent government shutdown. Continue reading.

Solidec Inc. (pre-seed)

7 innovative startups that are leading the energy transition in Houston

Houston-based Solidec was founded around innovations developed by Rice University associate professor Haotian Wang (far left). Photo courtesy Greentown Labs.

Solidec, a Houston startup that specializes in manufacturing “clean” chemicals, raised more than $2 million in pre-seed funding in August.

Houston-based New Climate Ventures led the oversubscribed pre-seed round, with participation from Plug and Play Ventures, Ecosphere Ventures, the Collaborative Fund, Safar Partners, Echo River Capital and Semilla Climate Capital, among other investors. Continue reading.

Molecule

Sameer Soleja is the founder and CEO of Molecule, which just closed its series B round. Photo courtesy of Molecule Software.

Houston-based energy trading risk management (ETRM) software company Molecule completed a successful series B round for an undisclosed amount, according to a July 16 release from the company.

The raise was led by Sundance Growth, a California-based software growth equity firm. Sameer Soleja, founder and CEO of Molecule, said in the release that the funding will allow the company to "double down on product innovation, grow our team, and reach even more markets." Continue reading.

Rarefied Studios, Solidec Inc. and Affekta

Houston startups were named among the nearly 300 recipients that received a portion of $44.85 million from NASA to develop space technology this fall. Photo via NASA/Ben Smegelsky

Houston-based Rarefied Studios, Solidec Inc. and Affekta were granted awards from NASA this summer to develop new technologies for the space agency.

The companies are among nearly 300 recipients that received a total agency investment of $44.85 million through the Small Business Innovation Research (SBIR) and Small Business Technology Transfer (STTR) Phase I grant programs, according to NASA.

Each selected company received $150,000 and, based on their progress, will be eligible to submit proposals for up to $850,000 in Phase II funding to develop prototypes. The SBIR program lasts for six months and contracts small businesses. Continue reading.

Intuitive Machines

Intuitive Machines expects to begin manufacturing and flight integration on its orbital transfer vehicle as soon as 2026. Photo courtesy Intuitive Machines.

Houston-based Intuitive Machines secured a $9.8 million Phase II government contract for its orbital transfer vehicle in July.

The contract was expected to push the project through its Critical Design Review phase, which is the final engineering milestone before manufacturing can begin, according to a news release from the company. Intuitive Machines reported that it expected to begin manufacturing and flight integration for its orbital transfer vehicle as soon as this year, once the design review is completed.

The non-NASA contract is for an undisclosed government customer, which Intuitive Machines says reinforces its "strategic move to diversify its customer base and deliver orbital capabilities that span commercial, civil, and national security space operations." Continue reading.

NRG inks new virtual power plant partnership to meet surging energy demands

Powering Up

Houston-based NRG Energy recently announced a new long-term partnership with San Francisco-based Sunrun that aims to meet Texas’ surging energy demands and accelerate the adoption of home battery storage in Texas. The partnership also aligns with NRG’s goal of developing a 1-gigawatt virtual power plant by connecting thousands of decentralized energy sources by 2035.

Through the partnership, the companies will offer Texas residents home energy solutions that pair Sunrun’s solar-plus-storage systems with optimized rate plans and smart battery programming through Reliant, NRG’s retail electricity provider. As new customers enroll, their stored energy can be aggregated and dispatched to the ERCOT grid, according to a news release.

Additionally, Sunrun and NRG will work to create customer plans that aggregate and dispatch distributed power and provide electricity to Texas’ grid during peak periods.

“Texas is growing fast, and our electricity supply must keep pace,” Brad Bentley, executive vice president and president of NRG Consumer, said in the release. “By teaming up with Sunrun, we’re unlocking a new source of dispatchable, flexible energy while giving customers the opportunity to unlock value from their homes and contribute to a more resilient grid

Participating Reliant customers will be paid for sharing their stored solar energy through the partnership. Sunrun will be compensated for aggregating the stored capacity.

“This partnership demonstrates the scale and strength of Sunrun’s storage and solar distributed power plant assets,” Sunrun CEO Mary Powell added in the release. “We are delivering critical energy infrastructure that gives Texas families affordable, resilient power and builds a reliable, flexible power plant for the grid.”

In December, Reliant also teamed up with San Francisco tech company GoodLeap to bolster residential battery participation and accelerate the growth of NRG’s virtual power plant network in Texas.

In 2024, NRG partnered with California-based Renew Home to distribute hundreds of thousands of VPP-enabled smart thermostats by 2035 to help households manage and lower their energy costs. At the time, the company reported that its 1-gigawatt VPP would be able to provide energy to 200,000 homes during peak demand.

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This article originally appeared on EnergyCapitalHTX.com.

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