9 startups named to accelerator program kicked off at Greentown Houston

new cohort

The Carbon to Value Initiative kicked off last week at Greentown Houston. Photo via GreentownLabs.com

A carbon innovation initiative in collaboration with Greentown Houston has named its new cohort.

The Carbon to Value Initiative (C2V Initiative) — a collaboration between NYU Tandon School of Engineering's Urban Future Lab (UFL), Greentown Labs, and Fraunhofer USA — has named nine startup participants for the fourth year of its carbontech accelerator program.

"Once again, the C2V Initiative has been able to select some of the most promising carbontech startups through a very competitive process with a 7 percent acceptance rate," Frederic Clerc, director of the C2V Initiative and interim managing director of UFL, says in a news release. "The diversity of this cohort, in its technologies, products, geographies, and stages, makes it an amazing snapshot of the rapidly evolving carbontech innovation landscape."

The cohort was selected from over a hundred applications from nearly 30 countries. In the six-month program, the nine companies gain access to the C2V Initiative's Carbontech Leadership Council, an invitation-only group of corporate, nonprofit, and government leaders who provide commercialization opportunities and identify avenues for technology validation, testing, and demonstration.

The year four cohort, according to the release, includes:

  • Ardent, from New Castle, Delaware, is a process technology company that is developing membrane-based solutions for point-source carbon capture and other chemical separations.
  • CarbonBlue, from Haifa, Israel, develops a chemical process that mineralizes and extracts CO2 from water, which then reabsorbs more atmospheric CO2.
  • MacroCycle, from Somerville, Massachusetts, develops a chemical recycling process to turn polyethylene terephthalate (PET) and polyester-fiber waste into "virgin-grade" plastics.
  • Maple Materials, from Richmond, California, develops an electrolysis process to convert CO2 into graphite and oxygen.
  • Oxylus Energy, from New Haven, Connecticut, develops a direct electrochemical process to convert CO2 into fuels and chemical feedstocks, such as methanol.
  • Phlair, from Munich, Germany, develops a renewable-energy-powered Direct Air Capture (DAC) system using an electrochemical process for acid and base generation.
  • Secant Fuel, from Montreal, Quebec, Canada, develops a one-step electrocatalytic process that converts flue gas into syngas.
  • RenewCO2, from Somerset, New Jersey, is developing an electrochemical process to convert CO2 into fuels and chemicals, such as sustainable aviation fuel (SAF) or propylene glycol.
  • Seabound, from London, England, builds carbon-capture equipment for new and existing ships.

"The depth and breadth of carbontech innovations represented in this applicant pool speaks volumes to this growing and dynamic industry around the world," adds Kevin Dutt, Interim CEO of Greentown Labs. "We're eager to support these nine impressive companies as they progress through this program and look forward to seeing how they engage with the CLC now and into the future."

The C2V Initiative kicked off at a public event on Sept. 19 at Greentown Houston and via livestream.

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This article originally ran on EnergyCapital.

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Over 500 people attended the 21st annual Energy Tech Venture Forum hosted by the Rice Alliance. Photo courtesy of Rice

10 most-promising energy tech startups named at annual Houston event

top companies

Investors from around the world again identified the most-promising energy tech startups at the Rice Alliance for Technology and Entrepreneurship's annual event.

"The recognition that Houston is the epicenter of energy transition is growing. It's something we are championing as much as possible so that the world can know exactly what we're doing," Paul Cherukuri, chief innovation officer at Rice University says at the 21st annual Energy Tech Venture Forum.

The event took place during the inaugural Houston Energy and Climate Startup Week, and nearly 100 startups from 23 states and seven countries pitched investors Wednesday, September 11, and Thursday, September 12. At the conclusion of the event, the investors decided on 10 companies deemed "most promising" from the presentations.

This year's selected companies are:

  • Revterra, a Houston-based company innovating within kinetic battery technology to enable faster and cleaner electric vehicle charging.
  • From Austin, 360 Mining is a modular data center provider for the oil and gas producers.
  • New York company Andium is a centralized and optimized operations platform for large energy companies.
  • Elementium Materials, a local Katy-based company, created its battery technology that originated out of MIT.
  • Splight is a San Mateo, California-based technology platform that provides real-time operational data based on inverter-based resources assets.
  • Los Angeles-based Mitico, one of the Rice Alliance Clean Energy Accelerator's class 4 participants, provides services and equipment for carbon capture through its granulated metal carbonate sorption technology.
  • From Cambridge, Massachusetts, Osmoses is changing the way molecular gas separations are performed within the chemical, petrochemical, and energy industries.
  • Rice Alliance Clean Energy Accelerator class 4 participant CORROLYTICS, based in Houston, has a corrosion detection and monitoring technology. The company also won over the crowd and secured the People's Choice win too.
  • Ardent, based in New Castle, Delaware, has developed a membrane technology for point-source carbon capture.
  • New Haven, Connecticut-based Oxylus Energy produces an alternative fuel from converting CO2 into green methanol.

Last year, investors named its selection of most-promising companies at Rice.

"We have a responsibility as a city to lead energy transition," Cherukuri continues. "A lot of the investments we're making at Rice are going to change the world."

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12+ can't-miss Houston business and innovation events for September

where to be

Editor's note: Houston's business and innovation events are back in session. From the return of Houston Energy and Climate Startup Week to a send-off for an impactful innovation leader and several health conferences, here's what not to miss and how to register. Please note: this article may be updated to include additional event listings.

Sept. 5-7 — Houston Hackathon

Impact Hub Houston is bringing back the Houston Hacakthon this month, where developers of all skill sets can work together to propose solutions to some of the Bayou City’s most pressing issues. The event is focused on ideating, designing, and developing both policy-based and tech solutions to improve Houston.

This event starts Saturday, Sept. 5, at noon at the Ion. Register here.

Sept. 8 — Community Celebration: A Send-Off for Paul Cherukuri

Come out to the Ion to celebrate Paul Cherukuri, Rice’s first chief innovation officer, whose visionary leadership has left a lasting impact on Houston’s innovation ecosystem. Cherukuri is leaving the university to accept a position at the University of Virginia. Hear remarks from Cherukuri and enjoy a networking reception following the talk.

This event is Monday, Sept. 8, from 2:30-5:00 p.m. at the Ion. Register here

Sept. 11 — Houston Methodist Leadership Speaker Series – Dr. Evan Collins

The Houston Methodist Tech Hub at the Ion will host its recurring leadership speaker series, this time featuring Dr. Evan Collins, chief of the Houston Methodist Hand & Upper Extremity Center at Houston Methodist and the Houston Methodist Center for Innovation's first innovator-in-residency. Collins will present on the creative process of innovation.

This event is Thursday, Sept. 11, from 4:45-6 p.m. at the Ion. Register here.

Sept. 12 — Future of Space

The Greater Houston Partnership’s 2025 Future of Space event will feature a keynote address by Vanessa E. Wyche, acting associate administrator of NASA. In her new role, Wyche serves as NASA’s chief operating officer, leading more than 18,000 employees and overseeing an annual budget exceeding $25 billion. Discussions will highlight how Houston’s space ecosystem is driving economic growth, technological innovation and new opportunities across the region and the nation.

The event is Friday, Sept. 12, from noon-1:30 p.m. at the Royal Sonesta. Find more information here.

Sept. 15-19 — Houston Energy and Climate Startup Week

Houston Energy and Climate Startup Week returns for its second year, with panels, happy hours and pitch days focused on the energy transition. The week features major events, including the Energytech Nexus Pilotathon, the Rice Alliance Energy Tech Venture Forum, Halliburton Labs Finalists Pitch Day and many others. See a preview of the week on our sister site EnergyCapitalHTX.com and learn more in the event listings below.

This event starts Monday, Sept. 15. The Ion District will host many of the week's events. Find more information here.

Sept. 16 — Energytech Nexus Pilotathon

Grab breakfast and take in keynotes and panels by leaders from New Climate Ventures, V1 Climate, Halliburton, Energy Tech Nexus and many others during Houston Energy & Climate Week. Then hear pitches during the Pilotathon, which targets startups ready to implement pilot projects within six to 12 months.

This event is Tuesday, Sept. 16, from 8 a.m.-5 p.m. at GreenStreet. Get tickets here.

Sept. 16 — Meet the Activate Houston Cohort 2025 Fellows

Meet Activate's latest cohort, which was named this summer, and also learn more about its 2024 group during Houston Energy & Climate Week.

This event is Tuesday, Sept. 16, at 5 p.m. at the Ion. Register here.

Sept. 17 — Green ICU Conference: Sustainability in Health Care for a Healthier Future

Houston Methodist will host its inaugural Green ICU Conference during Houston Energy & Climate Week. The conference is designed to bring together healthcare professionals, industry leaders, policymakers and innovators to explore solutions for building a more sustainable healthcare system.

This event is Wednesday, Sept. 17. from 8 a.m.-3 p.m. at TMC Helix Park. Register here.

Sept. 18 — Rice Alliance Energy Tech Venture Forum

Hear from clean energy startups from nine countries and 19 states at the 22nd annual Energy Tech Venture Forum during Houston Energy & Climate Week. The 12 companies that were named to Class 5 of the Rice Alliance Clean Energy Accelerator will present during Demo Day to wrap up their 10-week program. Apart from pitches, this event will also host keynotes from Arjun Murti, partner of energy macro and policy at Veriten, and Susan Schofer, partner at HAX and chief science officer at SOSV. Panels will focus on corporate innovation and institutional venture capital.

This event is Thursday, Sept. 18, from 7:30 a.m.-5 p.m. at Rice University’s Jones Graduate School of Business. Register here.

Sept. 18 — ACCEL Year 3 Showcase

Celebrate Advancing Climatetech and Clean Energy Leaders Program, or ACCEL, an accelerator program for startups led by BIPOC and other underrepresented founders from Greentown Labs and Browning the Green Space. Two Houston companies and one from Austin are among the eight startups to be named to the 2025 group. Hear startup pitches from the cohort, and from Greentown's Head of Houston, Lawson Gow, CEO Georgina Campbell Flatter and others. This event is part of Houston Energy & Climate Week.

This event is Thursday, Sept. 18, from 5-8 p.m. at Greentown Labs. Get tickets here.

Sept. 19 — Halliburton Labs Finalists Pitch Day

Hear from Halliburton Labs' latest cohort of entrepreneurs during Houston Energy & Climate Week. The incubator aims to advance the companies’ commercialization with support from Halliburton's network, facilities and financing opportunities. Its latest cohort includes one company from Texas.

This event is Friday, Sept. 19, from 8 a.m.-noon at The Ion. Register here.

Sept. 21-25 — AI in Health Conference

The Ken Kennedy Institute at Rice University will present the fourth annual AI in Health Conference, which aims to bridge the gap between artificial intelligence and real-world health outcomes. The event will explore the current landscape of artificial intelligence in health and present a research-driven outlook for the future of computational health innovation.

This conference is from Tuesday, Sept. 23, to Wednesday, Sept. 24. Additional workshops will be offered on Monday, Sept. 22, and Thursday, Sept. 25. The events will be held at the BioScience Research Collaborative at Rice University. Find more information here.

Sept. 25 — Industrial AI Nexus Connect

InnovateEnergy and Industrial AI Nexus will host a talk by Matthew Alberts, manager of innovation and emerging technologies at Southern Company and author of "The Gen AI Manufacturing Revolution: Smarter Factories, Enhanced Products, and Reduced Costs." Alberts will present “The Gen AI Revolution," followed by happy hour and a complimentary book signing.

This event is Thursday, Sept. 25, from 5:30-7:30 p.m. at the Ion. Register here.

Texas is the 4th hardest working state in America, report finds

Ranking It

It's no secret that Texans are hardworking people. To align with the Labor Day holiday, a new WalletHub study asserts that the Lone Star State is one of the five most hardworking states in America for 2025.

The report ranked Texas the fourth most hardworking state this year, indicating that its residents are working harder than ever after the state fell into seventh place in 2024. Texas previously ranked No. 4 in 2019 and 2020, slipped into No. 5 in 2021 and 2022, then continued falling into sixth place in 2023. But now the state is making its way back to the top of the list.

WalletHub's analysts compared all 50 states based on "direct" and "indirect" work factors. The six "direct" work factors included each state's average workweek hours, employment rates, the share of households where no adults work, the share of workers leaving vacation time unused, and other data. The four "indirect" work factors consisted of workers' average commute times, the share of workers with multiple jobs, the annual volunteer hours per resident, and the average leisure time spent per day.

North Dakota landed on top as the most hardworking state in America for 2025 for another year in a row, earning a score of 66.17 points out of a possible 100. For comparison, Texas ranked No. 4 with 57.06 points. Alaska (No. 2), South Dakota (No. 3), and Hawaii (No. 5) round out the top five hardest working states.

Across the study's two main categories, Texas ranked No. 5 in the "direct" work factors ranking, and earned a respectable No. 18 rank for its "indirect" work factors.

Broken down further, Texans have the second-longest average workweek hours in America, and they have the 12th best average commute times. Texans have the 6th lowest amount of average leisure time spent per day, the report also found.

According to the study's findings, many Americans nationwide won't take the chance to not work as hard when presented with the opportunity. A 2024 Sorbet PTO report found 33 percent of Americans' paid time off was left unused in 2023.

"While leaving vacation time on the table may seem strange to some people, there are plenty of reasons why workers choose to do so," the report's author wrote. "Some fear that if they take time off they will look less dedicated to the job than other employees, risking a layoff. Others worry about falling behind on their work or are concerned that the normal workflow will not be able to function without them."

The top 10 hardest working states are:

  • No. 1 – North Dakota
  • No. 2 – Alaska
  • No. 3 – South Dakota
  • No. 4 – Texas
  • No. 5 – Hawaii
  • No. 6 – Virginia
  • No. 7 – New Hampshire
  • No. 8 – Wyoming
  • No. 9 – Maryland
  • No. 10 – Nebraska
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This story originally appeared on CultureMap.com.

Houston co. makes waves in brain health and more innovation news to know

Trending Topics

Editor's note: The top innovation news for the second of half of August includes the Inc. 5000, a big contract from NASA, a new energy accelerator's launch, and innovative brain health treatment. Here are the five most-read InnovationMap stories from August 15-31:

1. How a Houston company is fighting anxiety, insomnia & Alzheimer’s through waveforms

Nexalin develops non-invasive devices that help reset networks in the brain associated with symptoms of anxiety and insomnia. Photo via Getty Images.

A Houston-based company is taking a medicine-free approach to target brain neurologically associated with mental illness. Nexalin Technology’s patented, FDA-cleared frequency-based waveform targets key centers of the midbrain to support the normalization of neurochemicals through a process known as Transcranial Alternating Current Stimulation (tACS). Delivered via a non-invasive device, the treatment gently stimulates the hypothalamus and midbrain, helping to “reset networks associated with symptoms” of anxiety and insomnia. Early clinical evidence suggests this approach can promote healthier brain function and improved sleep. Continue reading.

2. Houston innovation hub announces first cohort for energy-focused accelerator

Alabama-based Accelerate Wind is a member of the COPILOT cohort. Courtesy photo

Energytech Nexus, a Houston-based hub for energy startups, has named its inaugural cohort of 14 companies for the new COPILOT accelerator. The eight-month COPILOT program offers mentorship, training and networking for startups. Program participants will be tasked with developing pilot projects for their innovations. Two Houston startups are members of the first COPILOT class. Continue reading.

3. Houston foundation doles out $700K for Texas chemical research

The Welch Foundation has awarded funding through two of its newest grant programs. Photo via Getty Images.

Houston-based The Welch Foundation has issued $700,000 in additional funding to support chemical research through two of its newest grant programs. The foundation has named the recipients of its Welch eXperimental (WelchX) Collaboration Retreat and Pilot Grants and the Welch Postdoctoral Fellows of the Life Sciences Research Foundation Grants. The WelchX grants were awarded to teams of two Texas researchers who presented "innovative and collaborative ideas" addressing challenges in the clean energy space, according to the foundation. Continue reading.

4. Houston tech company secures $450M NASA contract

Barrios Technology has secured a two-year contract with NASA. Photo via Getty Images.

NASA’s Johnson Space Center awarded Houston-based aerospace technology and engineering services company Barrios Technology the Mission Technical Integration Contract (MTIC). The two-year contract is worth $450 million and will begin Oct. 1, 2025. Barrios will provide technical and management support to some of NASA’s human spaceflight programs, which include the Orion and Gateway programs, the International Space Station (ISS) and possibly more human spaceflight initiatives. Continue reading.

5. Fast-growing Houston tech firm leads dozens of local companies on Inc. 5000

Houston-based Action1 landed at No. 29 nationally and No. 1 in the software category in this year's Inc. 5000 ranking. Photo via Getty Images.

Dozens of Houston-area businesses appear in this year’s Inc. 5000 ranking of the 5,000 fastest-growing private companies in the U.S., with a security software provider capturing the region’s No. 1 spot on the list. Landing at No. 29 nationally and No. 1 in the software category, the top-ranked Houston-area private company is Houston-based Action1. The company recorded median revenue growth of 7,188 percent from 2021 to 2024, according to the Inc. 5000. It’s the first appearance on the Inc. 5000 list for Action1, founded in 2018. Continue reading.

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