Meet the new arrivals at Greentown Houston. Photo courtesy of Greentown Labs

Greentown Labs closed out the second quarter with the addition of 17 startups, and just over half are collaborating with the Houston location.

The technology represented by the new additions span the industries of energy, agriculture, and manufacturing, with a focus on carbon capture, electrical usage efficiency, and resource accessibility.

Carbon capture

Two of the newest Houston members, Capture6 and C-Quester, are also part of the Carbon2Value Initiative, a global partnership between the Greentown Labs, Urban Future Lab in New York, and Fraunhofer, headquartered in Michigan. C2V focuses on accelerating technology solutions that capture carbon dioxide for conversion into value-adding products and services.

Similar to the way a sponge is moistened and later wrung out, C-Quester pulls CO2 from flue gas into a temperature-sensitive material that can be heated later to release carbon, making the storage and transport of CO2 easier to manage.

Capture6 uses CO2 pulled from the atmosphere through their Direct Air Capture technology in combination with water treatment methodologies to remove excess salinity from saltwater and brine, resulting in greater freshwater recovery, usable elements for a variety of industries, and carbonates transformed into mineralized form to prevent continued carbon emissions.

Energy efficiency

The Helix MICRA filters created by Helix Earth Technologies can remove CO2 from power plants and other pollutants commonly encountered in the shipping industry. The filtering technology, initially developed for NASA, also dehumidifies air conditioning systems for more efficient energy use.

H2PRO uses its water-splitting technology, E-TAC, to produce green hydrogen in a two-step process that requires less energy to perform than the more common process of electrolysis with improved safety aspects.

Steam production and distribution get an upgrade with Imperium Technologies, the first electromechanical solution that enables previously unseen systems monitoring for reduction in greenhouse gas emissions by 20 percent, on average.

With a keen focus on predictive insights, eologix deploys smart sensors to give operators advance warning of situations that could cause rotor imbalances to keep wind turbines – and the energy they produce – optimized.

Resource accessibility

NW NA supports the goals of stability, predictability, and accessibility of electric-powered vehicle use with its high-power EV-charging station, mobile electricity storage units, and renewable energy measurement and forecasting tool.

From the Metaversity under development, to its oil and gas line leak detection systems, Kauel goes all-in on AI for its clients, even helping children with kinesthetic rehabilitation through augmented and virtual reality programs.

Finally, SkyH2O brings fresh, clean water to areas with limited access to existing infrastructure or natural water resources for commercial, military, and industrial use.

Another eight startups join the cohort named above as members of the Greentown Labs Boston location: Capro-X, Carbon2Stone, Cottage, Dioxycle, enaDyne, Global Algae Innovations, Terrafixing, and Thola.

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This article originally ran on EnergyCapital.

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Houston hypersonic engine company lands investment from deep-tech firm

super speed

Hypersonic engine technology company Venus Aerospace announced an investment for an undisclosed amount from deep-tech investment firm America's Frontier Fund (AFF).

Venus plans to use the funds to advance its VDR2 engine has the potential to support a commercial flight from Los Angeles to Tokyo in under two hours, according to a statement.

"AFF's investment in Venus Aerospace underscores our focus on supporting American companies that are revolutionizing industries of the future," Jordan Blashek, Co-Founder and Managing Partner of AFF, said in a news release. "With recent hypersonic advancements from China and Russia, safeguarding American innovation and securing our industrial base has never been more urgent. Venus Aerospace is poised to redefine hypersonic flight and ensure America's continued leadership in aerospace innovation."

Venus plans to integrate components of its RDRE engine into the advanced VDR2 engine, increasing efficiency with air-augmentation technology capable of 2,000 pounds of thrust. This will allow the VDR2 engine to operate at wider ranges of speeds and altitudes. The company plans to ground-test the VDR2 in 2025.

Venus also plans to make history this year by conducting the first atmospheric flight of its RDRE engine, which has applications in the space and defense industries.

"AFF's commitment to pioneering technological advancements aligns seamlessly with our mission to enhance American competitiveness in hypersonics,” Sassie Duggleby, CEO and co-Founder of Venus Aerospace, added in the news release. “Their deep-tech expertise and proven track record in scaling innovative companies will be invaluable as we work to achieve our goals."

Venus Aerospace believes these innovations can “strengthen U.S. leadership in aerospace, defense, and energy innovation."

Venus also aims to use its engine technology to power the Stargazer M4, the world's first Mach 4 reusable commercial aircraft and a prime example of advanced propulsion systems.

The company launched in 2020 and has gained $78.3 million in total investments, according to Pitchbook data.

Houston manufacturer names location of its $193.7 million facility

coming soon

Houston-based manufacturer of high-temperature superconducting wires MetOx International Inc. will build a major production facility in Chatham County, North Carolina, which is expected to create 333 jobs, and invest $193.7 million in the state.

MetOx is a leader in High Temperature Superconducting technology (HTS), which is an advanced power delivery technology that is capable of transmitting extremely high power at low voltage with zero heat generation or energy loss. The technology is assisting in the energy sectors like power transmission, distribution, and grid expansion.

“Establishing our new large-scale manufacturing facility in Chatham County is a pivotal step toward securing a reliable, domestic supply of HTS wire for the development of critical infrastructure in the United States,” Bud Vos, CEO of MetOx, says in a news release. “This facility will not only deliver transformative energy technologies that strengthen our grid and reduce carbon emissions but also create high-paying manufacturing jobs in a community eager to lead in innovation. We are proud to partner with North Carolina to drive forward a resilient energy future built on cutting-edge science and strong local collaboration.”

The new facility is funded in part by an $80 million investment from the United States Department of Energy, which the company announced in October. In September, the company closed $25 million in a series B extension round.

In late 2024, MetOx also announced that it received an undisclosed investment from Hawaii-based Elemental Impact, which is a leading climate-focused investment platform. As a national implementation partner for the EPA's $27 billion Greenhouse Gas Reduction Fund, Elemental Impact has received $100 million to deploy later-stage commercialized technologies according to the company.

The funding is expected to advance the expansion of MetOx’s Houston production line and the deployment of its HTS wire, which can make transmission cables up to ten times more efficient than traditional copper cables and will be used at the North Carolina facility.

“Building domestic manufacturing capacity for critical grid technologies is essential for America’s energy future," Danya Hakeem, vice president of Portfolio at Elemental Impact, says in a news release. “MetOx’s expansion in Houston demonstrates how we can simultaneously advance grid modernization and create quality manufacturing jobs. Their technology represents exactly the kind of innovation needed to unlock the next wave of clean energy deployment.”

The project in North Carolina will be facilitated with a Job Development Investment Grant formally awarded to a new company being created by MetOx. In the 12-year term of the grant, economists in the Department of Commerce estimated the project will grow North Carolina’s economy by $987.8 million.

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This article originally was published on our sister site, EnergyCapital.

Houston Nobel Prize nominee earns latest award for public health research

Prized Research

Houston vaccine scientist Dr. Peter Hotez can add one more prize to his shelf.

Hotez — dean of the National School of Tropical Medicine and professor of Pediatrics and Molecular Virology & Microbiology at Baylor College of Medicine, co-director of the Texas Children’s Center for Vaccine Development (CVD) and Texas Children’s Hospital Endowed Chair of Tropical Pediatrics — is no stranger to impressive laurels. In 2022, he was even nominated for a Nobel Peace Prize for his low-cost COVID vaccine.

His first big win of 2025 is this year’s Hill Prize, awarded by the Texas Academy of Medicine, Engineering, Science and Technology (TAMEST).

Hotez and his team were selected to receive $500,000 from Lyda Hill Philanthropies to help fund The Texas Virosphere Project. The endeavor was born to help create a predictive disease atlas relating to climate disasters. Because the climate crisis has ushered in changes to the distribution of diseases, including dengue, chikungunya, Zika, Chagas disease, typhus and tick-borne relapsing fever, it’s important to predict outbreaks before they become a menace.

Rice University researchers are collaborating with Hotez and his team on a project that combines climate science and metagenomics to access 3,000 insect genomes. The goal is to aid health departments in controlling disease and informing policy.

The Hill Prize, which is being awarded to six innovators for the first time, thanks to a $10 million commitment from the philanthropic organization, is intended to back ideas that are high-risk and high-reward. Each of the projects was chosen for its potential real-life impact on some of Texas's — and the world’s — most challenging situations. Hotez’s prize is the first Hill Prize to be given in the realm of public health. The additional winners are:

  • Hill Prize in Medicine: Kenneth M. Hargreaves, D.D.S., Ph.D., The University of Texas Health Science Center at San Antonio
  • Hill Prize in Engineering: Joan Frances Brennecke, Ph.D. (NAE), The University of Texas at Austin
  • Hill Prize in Biological Sciences: David J. Mangelsdorf, Ph.D. (NAM, NAS), UT Southwestern Medical Center
  • Hill Prize in Physical Sciences: James Chelikowsky, Ph.D., The University of Texas at Austin
  • Hill Prize in Technology: Robert De Lorenzo, M.D., EmergenceMed, LLC
Read about other Houston-area researchers recognized by TAMEST here.