Investors from Houston and Boston fuel Greentown with $4M commitment

next era

A mix of public and private investors have funded Greentown Labs. Photo via GreentownLabs.com

Greentown Labs, a climatetech incubator with locations in the Houston and Boston areas, has announced it has received funding from a mix of investors.

The $4 million in funding came from both of the Houston and Massachusetts locations. Houston investors included Bobby Tudor, CEO of Artemis Energy Partners and chairman of the Houston Energy Transition Initiative; David Baldwin, co-founder of OpenMinds and TEX-E and partner at SCF Partners; and Rice University. Other investors included MassDevelopment and the City of Somerville.

“The challenges of the energy transition are immense, and the role played by technology incubators like Greentown Labs is essential,” Tudor says in a news release. “We believe this role, which is a partnership between academia, industry, philanthropists, entrepreneurs, and governments, is the best way to get to effective, scalable solutions in a time frame that the urgency of the challenge requires. We need all hands on deck, and this partnership between Massachusetts and Texas can be a role model for others.”

According to Greentown, the funding will support its financial position and contribute to preparing the incubator for its next chapter of supporting its its leadership team prepare for Greentown’s next chapter supporting and growing its 575 startups.

“Greentown’s mission aligns closely with the Houston Energy Transition Initiative’s goal of accelerating global solutions to address the dual challenge of meeting growing energy demand globally while also significantly reducing CO2 emissions,” adds Steve Kean, president and CEO of the Greater Houston Partnership.

With the announcement of the funding, Greentown named its board members, including Tudor, who will serve as Greentown Labs Board Chair. The other Houston-based board members are:

David Baldwin, co-founder of OpenMinds and TEX-E; partner atSCF Partners
Bob Harvey, former president and CEO of GHP; board member of TEX-E
Jane Stricker, senior vice president of energy transition and executive director of HETI

“With this new funding, Greentown is poised to expand its impact across its existing ecosystems and support even more climatetech startups,” adds Kevin Dutt, interim CEO of Greentown Labs. “We believe in the essential role entrepreneurship will play in the energy transition and we’re grateful for the support of our partners who share in that belief and our collective commitment to commercializing these technologies as quickly and efficiently as possible.”

According to Greentown, the incubator plans to announce its new CEO in the coming months.

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The GHP and HETI announced that it has signed a memorandum of understanding with Argonne National Laboratory, a a federally-funded research and development facility in Illinois. Photo via Getty Images

HETI to partner with national research organization to promote energy transition innovation in Houston

team work

A new partnership between the Greater Houston Partnership and Argonne National Laboratory has been established to spur development of commercial-scale energy transition solutions.

The GHP and the Houston Energy Transition Initiative, or HETI, announced that it has signed a memorandum of understanding with Argonne National Laboratory, a federally-funded research and development facility in Illinois. The lab is owned by the United States Department of Energy and run by UChicago Argonne LLC of the University of Chicago.

“The U.S. Department of Energy’s national laboratories have long been the backbone of research, development, and demonstration for the energy sector," Bobby Tudor, CEO of Artemis Energy Partners and Chair of HETI, says in a news release. "The Partnership and HETI, working with our industry members, business community and top research and academic institutions, in collaboration with Argonne, will work across our energy innovation ecosystem to drive this critical effort for our region.”

The partnership, announced at HETI House at CERAWeek by S&P Global, is intended to provide resources and collaboration opportunities between Houston's energy innovation ecosystem — from corporates to startups — to "accelerate the translation, evaluation and pre-commercialization of breakthrough carbon reduction technologies," per the news release.

“A decarbonization center of excellence in Houston is the missing link in the region’s coordinated approach to advancing critical energy transition technologies needed to mitigate the risks associated with climate change, while also promoting economic growth and job creation for the region,” Tudor continues.

Established in 1946, Argonne works with universities, industry, and other national laboratories on large, collaborative projects that are expected to make a big impact on the energy transition.

“Partnerships are essential to realizing net zero goals,” Argonne Director Paul Kearns adds. “We are pleased to extend DOE national laboratory expertise and work with HETI to focus the region’s considerable energy and industrial assets, infrastructure, and talent on broad commercial deployment of needed technologies.”

An Austin-based energy software company just scored funding from Houston investors. Photo via Getty Images

Houston VCs back energy software startup in $3.25M seed round

fresh funding

Houston-based investment firm Goose Capital led a $3.25 million round of seed funding revealed recently by Austin-based cleantech software company P6 Technologies.

Other participants in the round are Houston-based investment firms Artemis Energy Partners, Tupper Lake Partners, and Veritec Ventures. The seed round represents the first outside funding for P6, which maintains an office in Houston.

In conjunction with the seed funding:

Artemis founder and CEO Bobby Tudor has joined P6’s board of directors. He is an investor in Goose Capital.
Paal Kibsgaard, managing partner of Veritec, also has joined the P6 board. Kibsgaard is former chairman and CEO of Houston-based oilfield services company Schlumberger, which now does business as SLB.

Joe Berti, CEO of P6, says Kibsgaard’s “unparalleled experience” will benefit his company.

“Veritec’s strategic vision and active support of energy transition solutions align perfectly with our goals, and I am confident their contribution will be instrumental in shaping our future success,” Berti says in a news release.

Berti is former chief product officer of IBM’s sustainability software unit.

P6, founded in 2022, sells enterprise software to businesses in the energy, transportation fuel, and petrochemical sectors. The startup’s software for product lifecycle assessment enables measurement of the product-level intensity of greenhouse gas (GHG) emissions as energy companies try to achieve sustainability goals.

Tudor applauds P6 for helping fossil fuel-anchored companies reduce GHG emissions.

“Energy is the sector that needs a solution like P6 the most,” says Tudor. “P6 has the right approach and is going to make a step-change improvement to how product-level carbon intensity and GHG emissions are tracked today.”

Bobby Tudor has joined the board of an energy tech company. Photo via Houston.org

Houston energy transition leader joins California company's board with investment

seat at the table

A Houston business leader has taken a seat at the table of a San Francisco-based tech company.

Puloli, an IoT solutions-as-a-service company has announced an investment from, Artemis Energy Partners, a Houston group founded by Bobby Tudor. The terms of the deal were not disclosed.

With the transaction, Tudor joins Puloli's board of directors, bringing expertise from a storied career in energy transition from his roles at Tudor Pickering Holt & Co. and the Greater Houston Partnership.

"Bobby brings a tremendous amount of credibility and energy industry insight to Puloli and complements what Jodi Jahic and Aligned Partners bring to Puloli," Kethees Ketheesan, CEO of Puloli, says in a news release. "Bobby's endorsement of Puloli solution will be a big boost in accelerating our growth."

The investment from Artemis Energy Partners will be used to support research and development, operations, and more at Puloli, which recently launched a continuous methane monitoring service for energy producers. The funding will also support this new technology, called the Paradigm M-Series, as it rolls out across North America.

"I'm very pleased and excited to be a part of the Puloli team," Tudor says in the release. "The energy industry is hungry for solutions I'm confident Puloli can provide. Kethees and his team are poised to become a leader in the methane detection and measurement space, and I look forward to supporting that growth opportunity."

Tudor was the 2020 chair of the GHP and currently serves as the chairman of the Houston Energy Transition Initiative, or HETI. He founded Artemis Energy Partners in 2017 after his firm TPH merged with Perella Weinberg Partners in 2016.

Students from the 2023 cohort of The Energy Project showcased their innovations at the Puranik Foundation Lotus Innovation Awards. Photo courtesy of Jacob Power Photography

Sustainability-focused philanthropy recognizes student innovations, local leaders

EMPOWERING THE TRANSITION

From the moment of arrival at the Puranik Foundation Lotus Innovation Awards, attendees engaged in an experience that stimulated the senses and excited the mind – a precise reflection of the foundation’s approach to a holistic education for future innovators.

The event, held last week at the Post Oak Hotel in Uptown, honored Houston leaders supporting the next generation of aspiring entrepreneurs and celebrated the dedication of high school students dreaming sustainability solutions into reality.

“[These students] have the potential to reach innovative places that none of us can think of because we are so set in our ways,“ says Bhakti Puranik, executive director of Puranik Foundation, just steps from where the students showcased their prototypes to secure the gala’s Fan Favorite award. “They are open-minded and creative and constantly inspired by the community that surrounds us.”

The Energy Project, launched in 2020 by the foundation, supports young minds tackling environmental challenges for sustainable development across five sectors: alternative power generation, sustainable consumption, waste management, urban design, and water sustainability.

Multiple small student teams from across the country met for design thinking lessons before creating prototypes of their own solutions at TXRX Labs. The foundation’s primary sponsor, Worldwide Oilfield Machine, provided mentors and resources to the 25 students in this year’s cohort alongside Rice University.

For the winning team, Refoam Maine, the application of mushroom mycelium in lieu of plastic for floating buoys came from the optimistic minds of Maggie Blood, Olivia Huard, Tula Bradley Prindiville, and Laura Riordan, students of Camden Hills Regional High School near Rockport, Maine.

A close-knit community, Camden Hills has collectively seen thousands of orphaned buoys pile up against their docks and beaches for years. The team plans to use their Lotus Innovation Award grant of $15,000 to get their floats in the water, and is actively working with boatyards, aquaculture farmers, and others to bring that vision to reality this summer.

Cyrus Golshan, Nathaniel Lemon, and Alexander Kristof took home the Fan Favorite Award for their solution Piezot, which harnesses energy from revolutionary piezoelectric tiles that convert pressure into energy and electricity.

The team studies at the Energy Institute High School in Houston and envisions an energy ecosystem that doesn’t rely so heavily on natural forces, but rather on human movement as a means to generate power. Placement of the tiles in high-traffic areas like airports, schools, and shopping centers could mean an exponential growth in power supply created simply by the many feet that pass through these areas every day.

Bobby Tudor, CEO and founder of Artemis Energy Partners, and recipient of the Sustainability Lotus Award from Puranik Foundation, attributes the success of the program to the convergence of expertise, a collaborative ecosystem, and global connectivity available from Houston as part of the burgeoning Energy Transition industry.

“We are the energy capital of the world because we are the intellectual capital of energy,“ says Tudor. “The knowledge, the engineering, the expertise, sits here in a more concentrated way than it sits anywhere else in the world. It is that intellectual capital that will pave the way for us to continue to be the energy capital of the world a decade from now, two decades from now, and five decades from now.”

Additionally, Paula Harris, senior vice president of the Houston Astros Community Affairs and Executive Director for the Astros Foundation, accepted the Education Lotus Award for her continued commitment to advancing STEM education across underserved communities.

For his positive impact on the mental well-being of students, Bradley H. Smith, Ph.D., Professor of Psychological, Health, and Learning Services at the University of Houston School of Psychology, Puranik Foundation honored him with Mindfulness Lotus Award.

Applications for The Energy Project are due by 1 November each fall. In addition to the team competition, next year’s cohort includes an immersive experience in India for holistic learning and leadership development.

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Houston maritime startup raises $43M to electrify cargo vessels

A Houston-based maritime technology company that is working to reduce emissions in the cargo and shipping industry has raised VC funding and opened a new Houston headquarters.

Fleetzero announced that it closed a $43 million Series A financing round this month led by Obvious Ventures with participation from Maersk Growth, Breakthrough Energy Ventures, 8090 Industries, Y Combinator, Shorewind, Benson Capital and others. The funding will go toward expanding manufacturing of its Leviathan hybrid and electric marine propulsion system, according to a news release.

The technology is optimized for high-energy and zero-emission operation of large vessels. It uses EV technology but is built for maritime environments and can be used on new or existing ships with hybrid or all-electric functions, according to Fleetzero's website. The propulsion system was retrofitted and tested on Fleetzero’s test ship, the Pacific Joule, and has been deployed globally on commercial vessels.

Fleetzero is also developing unmanned cargo vessel technology.

"Fleetzero is making robotic ships a reality today. The team is moving us from dirty, dangerous, and expensive to clean, safe, and cost-effective. It's like watching the future today," Andrew Beebe, managing director at Obvious Ventures, said in the news release. "We backed the team because they are mariners and engineers, know the industry deeply, and are scaling with real ships and customers, not just renderings."

Fleetzero also announced that it has opened a new manufacturing and research and development facility, which will serve as the company's new headquarters. The facility features a marine robotics and autonomy lab, a marine propulsion R&D center and a production line with a capacity of 300 megawatt-hours per year. The company reports that it plans to increase production to three gigawatt-hours per year over the next five years.

"Houston has the people who know how to build and operate big hardware–ships, rigs, refineries and power systems," Mike Carter, co-founder and COO of Fleetzero, added in the release. "We're pairing that industrial DNA with modern batteries, autonomy, and software to bring back shipbuilding to the U.S."

Shell partners with UK-based co. for hydrogen electrolyzer pilot

ultra-efficient electrolyzer

Shell Global Solutions International, a subsidiary of Shell, which maintains its U.S. headquarters in Houston, has signed a collaboration agreement with London-based Supercritical Solutions to advance Supercritical’s ultra-efficient hydrogen electrolyzer technology toward a field pilot demonstration.

In the deal, the companies will collaborate on a paid technology feasibility study that will support the evaluation and planning of the pilot demonstration, according to a news release. Supercritical Solutions’ technology aims to deliver high-efficiency renewable hydrogen at a lower cost for the industrial hydrogen market.

"Signing this collaboration agreement with Shell is a major milestone for Supercritical Solutions and an important step on our commercialisation journey,” Luke Tan, co-founder of Supercritical, said in the news release. “We are directly addressing the cost and complexity barriers facing the renewable hydrogen market. We are excited to move forward with a company like Shell, whose global leadership has been proven to accelerate innovative technologies to market.”

Supercritical’s hydrogen electrolyser technology can operate at high temperatures and pressures of up to 220 bar without the need for an external hydrogen compressor, rare-earth materials or easily degradable membranes. The technology removes the typical compression step in the process while delivering hydrogen at industry standards. It requires significantly less energy than many traditional electrolyzers and is more cost-efficient.

This recent investment builds on an ongoing relationship between Shell and Supercritical. Supercritical was founded in 2020 and was runner-up in Shell’s New Energy Challenge, which helps startups and scaleups develop sustainable technologies, in 2021. Shell Ventures then invested in Supercritical’s Series A funding round in 2024 with Toyota Ventures.

3 Houston-area companies named to Global Cleantech 100

Energized

Three Houston-area companies—Amperon, Hertha Metals and Vaulted Deep—appear on this year’s Global Cleantech 100 list.

The unranked list, generated by market intelligence and advisory firm Cleantech Group, identifies the 100 privately held companies around the world that are most likely to make a significant impact in the cleantech market over the next five to 10 years.

For the 2026 list, Cleantech Group received more than 24,000 Global Cleantech 100 nominations from nearly 60 countries. Cleantech Group scored those companies and narrowed the contenders to 264. An expert panel reviewed those nominees, and the list was whittled down to the 100 winners.

Here’s a rundown of the three Houston-area honorees:

Amperon

Founded in 2018 by Sean Kelly and Abe Stanway, Houston-based Amperon offers an AI-enabled energy forecasting and analytics platform designed to help stabilize electric grids. Amperon received undisclosed amounts of venture capital from National Grid Partners and Tokyo Gas Co. Ltd. last year and announced a recent investment from Samsung Ventures earlier this month.

Hertha Metals

Founded in 2022 by Laureen Meroueh, Conroe-based Hertha Metals provides a single-step process for producing sustainable steel. Last year, the company emerged from stealth mode and raised more than $17 million in venture capital.

Vaulted Deep

Vaulted Deep’s technology injects excess organic waste underground to remove carbon dioxide from the atmosphere. Julia Reichelstein and Omar Abou-Sayed founded the Houston-based company in 2023. Last year, the startup raised $32.3 million in venture capital. Also in 2025, Vaulted Deep signed a 12-year deal with software giant Microsoft to remove up to 4.9 million metric tons of carbon dioxide from the environment.

Vaulted Deep also made the list last year, along with Houston-based Syzygy Plasmonics and Fervo Energy. Fervo was also named the 2025 North American Company of the Year by Cleantech Group.

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