Houston cleantech company closes $12M seed round

fresh funding

Helix Earth is developing a retrofit technology that has the potential to cut HVAC energy use by up to 50 percent. Photo via Getty Images

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

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

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

"Building owners are dealing with rising energy costs, uncontrolled humidity, and aging infrastructure with no viable, cost-effective path forward. We are in the field today solving these problems for commercial customers, and this capital puts us on an aggressive path to scale,” Rawand Rasheed, Helix Earth co-founder and CEO, said in a news release.

“The strength of this round reinforces our team's conviction that we can transform innovation-starved sectors with transformational solutions that deliver order-of-magnitude improvements to owners and operators, for both their bottom line and the environment,” Rasheed added.

Maynard Holt, Veriten’s founder and CEO, said that the investment firm is tripling its investment in Helix Earth.

"The team has built breakthrough technology with real applicability across multiple industries,” Holt said in the release. “Their first product will have an immediate and measurable impact on our energy system, and they are already pursuing adjacent innovations to help heavy industries operate more efficiently and with less waste. This is a well-rounded team with a proven track record of strong execution and disciplined capital management.”

Helix Earth also closed a $5.6 million seed funding round in 2024, led by Veriten.

Last year, the company secured a $1.2 million Small Business Innovation Research (SBIR) Phase II grant and won in the Smart Cities, Transportation & Sustainability contest at the 2025 SXSW Pitch Showcase. Rasheed was also named to the Forbes 30 Under 30 Energy and Green Tech list for 2025.

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Helix Earth's technology has the potential to cut AC energy use by up to 50 percent. Photo by Sergei A/Pexels

Houston cleantech startup Helix Earth lands $1.2M NSF grant

federal funding

Renewable equipment manufacturer Helix Earth Technologies is one of three Houston-based companies to secure federal funding through the Small Business Innovation Research (SBIR) Phase II grant program in recent months.

The company—which was founded based on NASA technology, spun out of Rice University and has been incubated at Greentown Labs—has received approximately $1.2 million from the National Science Foundation to develop its high-efficiency retrofit dehumidification systems that aim to reduce the energy consumption of commercial AC units. The company reports that its technology has the potential to cut AC energy use by up to 50 percent.

"This award validates our vision and propels our impact forward with valuable research funding and the prestige of the NSF stamp of approval," Rawand Rasheed, Helix CEO and founder, shared in a LinkedIn post. "This award is a reflection our exceptional team's grit, expertise, and collaborative spirit ... This is just the beginning as we continue pushing for a sustainable future."

Two other Houston-area companies also landed $1.2 million in NSF SBIR Phase II funding during the same period:

Resilitix Intelligence, a disaster AI startup that was founded shortly after Hurricane Harvey, that works to "reduce the human and economic toll of disasters" by providing local and state organizations and emergency response teams with near-real-time, AI-driven insights to improve response speed, save lives and accelerate recovery
Conroe-based Fluxworks Inc., founded in 2021 at Texas A&M, which provides magnetic gear technology for the space industry that has the potential to significantly enhance in-space manufacturing and unlock new capabilities for industries by allowing advanced research and manufacturing in microgravity

The three grants 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 September 30, 2025, and has stalled since the recent government shutdown. Government agencies cannot issue new grants until Congress agrees on a path forward. According to SBIR.gov, "if no further action is taken by Congress, federal agencies may not be able to award funding under SBIR/STTR programs and SBIR/STTR solicitations may be delayed, cancelled, or rescinded."

Three young professionals have made the cut for this year's Forbes Under 30 list in the Energy and Green Tech list for 2025. Photos via Forbes

Under 30: Houston innovators snag spots on Forbes list of top young energy professionals

A handful of Houstonians have been named to the Forbes 30 Under 30 Energy and Green Tech list for 2025.

Kip Daujotas is an investment associate at Aramco Ventures, a $7.5 billion venture capital arm of the world's largest energy company. Houston is the Americas headquarters for Saudi Aramco. Since its inception in 2012, Aramco Ventures has invested in more than 100 tech startups. Daujotas joined the team over two years ago after studying for an MBA at Yale University. He led Aramco’s first direct air capture (DAC) investment — in Los Alamos, New Mexico-based Spiritus.

Also representing the corporate side of the industry, Wenting Gao immigrated from Beijing to obtain an economics degree from Harvard University, then got a job at consulting giant McKinsey, where she recently became the firm’s youngest partner. Gao works on bringing sustainability strategies to energy and materials companies as well as investors. Her areas of expertise include battery materials, waste, biofuels, and low-carbon products.

Last but not least, Houston entrepreneur Rawand Rasheed is co-founder and CEO of Houston-based Helix Earth. He co-founded the startup after earning a doctoral degree from Rice University and co-inventing Helix’s core technology while at NASA, first as a graduate research fellow and then as an engineer. The core technology, a space capsule air filtration system, has been applied to retrofitting HVAC systems for commercial buildings.

Each year, Forbes 30 Under 30 recognizes 600 honorees in 20 categories. The 2025 honorees were selected from more than 10,000 nominees by Forbes staff and a panel of independent judges based on factors such as funding, revenue, social impact, scale, inventiveness, and potential.

Specifically, the Energy & Green Tech category recognizes young entrepreneurs driving innovation that’s aimed at creating a cleaner, greener future.

“Gen Z is one of the fastest-growing groups of entrepreneurs and creators, who are reshaping the way the world conducts business, and our Under 30 class of 2025 proves that you can never begin your career journey too early,” says Alexandra York, editor of Forbes Under 30. “With the expansion across AI, technology, social media, and other industries, the honorees on this year’s list are pushing the boundaries and building their brands beyond traditional scopes.”

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 by Sergei A/Pexels

Houston investor leads Houston climatetech startup's $5.6M seed to transform energy-efficient HVAC challenges

local funding

A Houston startup with clean tech originating out of NASA has secured millions in funding.

Helix Earth Technologies closed an oversubscribed $5.6 million seed funding led by Houston-based research and investment firm Veriten. Anthropocene Ventures, Semilla Capital, and others including individual investors also participated in the round.

“This investment will empower the Helix Earth team to accelerate the development and deployment of our first groundbreaking hardware technology designed to disrupt a significant portion of the commercial air conditioning market, an industry that is ready for innovation,” Rawand Rasheed, Helix Earth co-founder and CEO, says in a news release.

Helix Earth was founded based on NASA technology co-invented by Rasheed and spun out of Rice University and has been incubated at Greentown Labs in Houston since 2022. Currently being piloted, the technology is estimated to save up to half of the net energy used in commercial air conditioning, reducing both emissions and costs for operators.

“The enthusiastic response from investors reinforces our team’s confidence in our ability to transform innovation-starved sectors such as commercial air conditioning with an easy-to-install-and-maintain solution that benefits distributors, mechanical contractors, and most of all, building owners, with a positive benefit to the environment,” Rasheed says.

Prior to its raise, the company received grant funding from the National Science Foundation and the United States Department of Energy.

“We couldn’t be more excited to partner with the Helix Earth team," Maynard Holt, Veriten’s founder and CEO, adds. "We were so impressed with their unique combination of a technology with broad applicability across multiple industries, a product that will have an immediate and measurable impact on our energy system, and a fantastic and well-rounded team.”

Helix Earth, per the release, reports that is also looking to provide solutions for commercial humidity control and carbon capture.

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This article originally ran on InnovationMap.

Houston scores federal funding for energy transition projects — and more things to know this week. Photo via Getty Images

Houston's $1.2B win, events not to miss, and other things to know in energy transition this week

take note

Editor's note: It's a new week — start it strong with three quick things to know in Houston's energy transition ecosystem: Federal funding deployed in Houston, a podcast to stream, and more.

Federal funding deals in HOU

DOE has granted funds big and small to Houston energy organizations. Photo via Getty Images

The big news last week was that a Houston-area project been announced as one of the seven regions to receive a part of the $7 billion in Bipartisan Infrastructure Law funding to advance domestic hydrogen production. President Biden and Energy Secretary Jennifer Granholm named the seven regions to receive funding in a White House statement on Friday, October 13. The Gulf Coast's project, HyVelocity Hydrogen Hub, will receive up to $1.2 billion — the most any hub will receive. Read more.

Also this month, the U.S. Department of Energy's Advanced Research Projects Agency-Energy deployed $10 million into three projects working on superconducting tape innovation. Two of these projects are based on research from the University of Houston. Superconductivity — found only in certain materials — is a focus point for the DOE because it allows for the conduction of direct electric current without resistance or energy loss. Read more.

Must-attend events

Upcoming events to put on your radar. Photo via Getty Images

Put these upcoming events on your radar.

October 30-31 — Fuze is a must-attend event for executives, investors, and founders serious about solving the energy crisis and boosting company efficiency. Learn more.
November 1 — The Greentown Labs Climatetech Summit 2023 will feature energy transition startups, thought leaders, and more both in person and online. Learn more.
November 8 — The Houston Innovation Awards will honor the city's startups, entrepreneurs, and ecosystem, including energy tech innovators. Learn more.

Today's listen: Energy Tech Startups

Rawand Rasheed, the CEO and founder of Helix Earth Technologies, joins the Energy Tech Startups podcast. Photo via LinkedIn

Excessive energy consumption in air conditioning systems is a pressing issue with far-reaching implications for carbon emissions and climate change.

Rawand Rasheed, the CEO and founder of Helix Earth Technologies, is at the forefront of addressing this challenge. With a distinguished background as an aerospace engineer with NASA, Rawand’s expertise is now channeled towards the built environment and heavy industries.

In a recent episode of Energy Tech Startups, we dive into how Rawand’s journey from space technology innovations is now revolutionizing energy consumption in air conditioning systems.

Rawand Rasheed, the CEO and founder of Helix Earth Technologies, joins the Energy Tech Startups podcast. Photo via LinkedIn

From NASA to HVAC: How this Houston tech startup is revolutionizing energy-efficient air conditioning

Q&A

Excessive energy consumption in air conditioning systems is a pressing issue with far-reaching implications for carbon emissions and climate change.

In a recent episode of Energy Tech Startups, we dive into how Rawand’s journey from space technology innovations is now revolutionizing energy consumption in air conditioning systems.

In an era where the urgency to combat climate change is palpable, innovators like Rawand Rasheed are making monumental strides in bridging the gap between space-age technology and sustainable solutions for our planet. Drawing from her unique experiences at NASA and her unwavering commitment to the environment, Rawand's work with Helix Earth Technologies exemplifies the transformative potential of cross-disciplinary expertise. As we witness the evolution of her groundbreaking technology in the HVAC sector, it serves as a potent reminder that with determination, innovation, and a clear vision, we can indeed reshape our world for the better. The future of energy-efficient air conditioning, and by extension, a more sustainable world, is on the horizon, and pioneers like Rawand are leading the way.

Energy Tech Startups: How did your experience at NASA inspire your work in decarbonization and HVAC?

Rawand Rasheed: At NASA, we often faced unique challenges that required innovative solutions, especially in space. One such challenge was fighting fires in space using a micrometer-sized droplet spray of water. This led us to develop an efficient filter that could capture these small droplets without any moving parts. This technology, initially designed for space, turned out to have significant implications for climate tech, particularly in capturing and filtering air streams.

ETS: How does your technology help in reducing energy consumption in air conditioning systems?

RR: Our technology can significantly reduce air conditioning energy loads, cutting them by over 50%. It works by absorbing more from air streams, making the cooling process more efficient. Currently, we're focusing on commercial HVAC systems and are close to scaling our system to a commercial unit. Within the next year, we aim to demonstrate the effectiveness of our system at this scale through pilot projects.

ETS: How did your early life shape your entrepreneurial aspirations?

RR: Growing up, I witnessed firsthand the power of determination and hard work. Starting from scratch, both culturally and financially, and achieving success made me believe that anything is possible. This belief, combined with my passion for the environment and engineering, always fueled my desire to start a company. My graduate studies further solidified this aspiration, merging my interests and leading me to establish my own venture in the realm of environmental engineering.

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This conversation has been edited for brevity and clarity. Click here to listen to the full episode. Hosted by Jason Ethier and Nada Ahmed, the Digital Wildcatters’ podcast, Energy Tech Startups, delves into Houston's pivotal role in the energy transition, spotlighting entrepreneurs and industry leaders shaping a low-carbon future. Digital Wildcatters is a Houston-based media platform and podcast network, which is home to the Energy Tech Startups podcast.

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UH study finds Gulf Coast best positioned for emerging carbon removal technology

coastal impact

The Gulf Coast is an ideal spot for deploying a new ocean-based carbon removal technology that uses seawater to capture and store carbon dioxide, according to a new study from the University of Houston.

The study was led by UH Cullen College of Engineering Professor Mim Rahimi and published in Nature’s Communications Sustainability journal. Abdelrahman Refaie, a PhD student at UH, authored the paper. It aimed to develop a plan for implementing an electrochemical marine carbon dioxide removal (e-mCDR) technology that treats seawater to increase the ocean’s ability to absorb and store carbon dioxide from the air.

Currently, oceans absorb about 30 percent of human-produced carbon dioxide emissions each year, according to UH, making it a great natural resource for carbon removal.

The team at UH scouted and analyzed 38 coastal facilities across the U.S.—including power plants, desalination plants, and liquefied natural gas (LNG) terminals—before determining the Gulf Coast as an attractive option. The South Hub, or the Gulf Coast along Texas and Louisiana, ranked the top-performing area for the technology due to the industrial infrastructure, affordable electricity, hydrogen transportation and storage networks.

Other regions like California and the Northeast also scored well due to their clean energy mix and carbon removal potential, according to UH.

“The South hub has one of the highest diversity factors between power plants, desalination and LNG,” Refaie said in a news release. “That means if, logistically, down the road LNG is not open for this implementation, then we have another option in the area. It reduces the risk factor.”

UH says the findings show how companies could commercialize the technology, which could boost coastal economies.

“The question we had wasn’t technical, rather, it was logistical in regard to implementation down the road,” Rahimi said. “This would be a roadmap if a company or the government wants to utilize this technology.”

Rahimi aims to increase awareness about e-mCDR technology and its potential impact. He recently discussed the ocean-centric carbon removal work with members of Congress in March at the Carbon to Sea’s 2026 Hill Day.

“I think faculty at the University of Houston can do more of this kind of work,” Rahimi said in a separate release. “Meeting with Members of Congress gives us a chance to help policymakers better understand the science and engineering happening at our university. That kind of engagement is an important part of moving new technologies forward. It also shows how the work we do on campus can have a real impact on communities beyond the university.”

The latest Houston energy breakthroughs + more top headlines for June

Trending News

Editor's note: June brings exciting news in the energy transition sector, from major milestones in clean energy production for Cemvita and Merichem to the release of the 2026 Fortune 500 list. Below are the five most-read stories published on EnergyCapitalHTX from June 1-14, 2026:

1. Houston startup strikes deal to develop hydrogen production plant in Canada

Houston-based cleantech startup Vema Hydrogen has reached a tentative agreement with Canada-based CHARBONE Corp. to develop a hydrogen production and processing plant in Québec. The deal would couple Vema’s production of engineered mineral hydrogen with CHARBONE’s purification, compression and distribution capabilities. Engineered mineral hydrogen, also known as orange hydrogen, is produced underground by accelerating naturally occurring geochemical reactions in iron-rich rock formations. Continue reading.

2. Cemvita reaches breakthrough in sustainable fuel feedstock production

Houston-based biotech company Cemvita announced that it recently reached a critical milestone in the development of its FermOil product, which can be used to create Sustainable Aviation Fuel (SAF) and other renewable fuels at industrial scale. The company completed a 75,000-liter industrial fermentation run at Belgium's Bio Base Europe Pilot Plant. The campaign achieved target technical metrics for the production of FermOil, Cemvita’s renewable natural oil (RNO). Continue reading.

3. Houston chemical co. completes successful field trial of cleaner natural gas processing tech

Houston-based Merichem Technologies has announced successful results from the field trial of its new hydrogen sulfide (H2S) removal technology in the Permian Basin. The technology, known as ECOTREAT, removed more than 99 percent of hydrogen sulfide gas from natural gas streams, or “sour gas,” without producing solid waste during the month-long trial. It also showed sustained performance even when operating above the unit’s design capacity. Continue reading.

4. 6+ must-attend Houston energy transition events for June 2026

Editor's note: Summer is here, and June brings a slate of must-attend events for those in the energy transition sector. The month continues with EPC Show and InnovateEnergy Week. Mark your calendars and register now. Continue reading.

5. Houston lands 27 Fortune 500 headquarters, led by energy heavyweights

Houston is a giant among U.S. hubs for corporate headquarters. The 2026 Fortune 500 lists 27 companies based in the Houston area, with many energy companies claiming top spots. Houston ties with Chicago for the second-most Fortune 500 headquarters, preceded only by New York City (53). Dallas-Fort Worth is home to 23 Fortune 500 headquarters. Texas leads the nation for Fortune 500 headquarters (57), with California in the No. 2 spot and New York at No. 3. Continue reading.

Japanese company plans $357M solar manufacturing plant in Houston area

coming soon

Japanese solar manufacturing company TOYO Co. Ltd. plans to invest $357 million to bring a 1.5-gigwatt solar cell manufacturing facility to the Houston area.

TOYO’s latest state-of-the-art facility will be co-located at its existing solar module site in Humble, according to a news release from the company. It will produce heterojunction (HJT) solar cells, which are known to be more durable and efficient with a higher heat threshold.

TOYO reports that the new facility will create 400 full-time manufacturing jobs. The project is expected to be completed in 20 months, which includes an initial pilot production.

"Expanding into domestic cell manufacturing is the natural next step in our commitment to creating an integrated onshore solar supply chain from polysilicon to panels," Takahiko Onozuka, chairman and CEO of TOYO, said in the news release. "Co-locating 1.5 GW of HJT cell capacity at our Houston module site significantly optimizes our capital allocation and infrastructure spend.”

TOYO entered the Houston market in 2024 through its acquisition of a majority stake in Solar Plus Technology Texas LLC.

Earlier this year, it began producing solar modules at its 567,140-square-foot plant in Lovett Industrial’s Nexus North Logistics Park. At the time, the company said it planned to expand manufacturing capacity to 6.5 gigawatts.

"The new cell plant reflects TOYO's long-term strategy to build a fully FEOC-compliant domestic manufacturing platform focused on serving the needs of the U.S. utility-scale solar market," Rhone Resch, TOYO's chief strategy officer, added in the release. "By producing premium solar products in the United States, we will be well positioned to meet the market's evolving domestic content requirements while strengthening supply chain security and reliability. Looking ahead, we believe HJT is the optimal technology platform for integrating next-generation perovskite solar cells, which we expect will drive the next major advancement in solar conversion efficiency and support TOYO's long-term technology roadmap.”

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