Houston startup with sustainable biotech solutions lands new customer in United Airlines

ready for takeoff

United Airlines is interested in buying Cemvita's sustainable aviation fuel when it's produced. Photo courtesy of Cemvita

An innovative Houston company is celebrating a new deal with a global airline.

Cemvita Corp. announced a new offtake arrangement with United Airlines. Cemvita's first full-scale sustainable aviation fuel plant will provide up to 1 billion gallons of SAF to United Airlines. The 20-year contract specifies that Cemvita will supply up to 50 million gallons annually to United.

It's not the first collaboration Cemvita has had with the airline. Last year, United invested in the biotech company, which used the funding to open its Houston pilot plant.

“Since our initial investment last year, Cemvita has made outstanding progress, including opening their new pilot plant – an important step towards producing sustainable aviation fuel,” United Airlines Ventures President Michael Leskinen says in a news release. “United is the global aviation leader in SAF production investment, but we face a real shortage of available fuel and producers. Cemvita’s technology represents a path forward for a potentially significant supply of SAF and it’s our hope that this offtake agreement for up to one billion gallons is just the beginning of our collaboration.”

Founded in Houston in 2017 by brother-sister team Moji and Tara Karimi, Cemvita's biotechnology can mimic the photosynthesis process, turning carbon dioxide into feedstock. The company's SAF plan hopes to increase reliability of existing SAFs and lower impact of fuel creation.

“Biology is capable of truly amazing things,” Moji Karimi, CEO of Cemvita, says in the release. “Our team of passionate, pioneering, and persistent scientists and engineers are on a mission to create sustainable BioSolutions that redefine possibilities.”

“We are thrilled to partner with United Airlines in working towards transforming the aviation industry and accelerating the energy transition,” he continues. “This agreement featuring our unique SAF platform is a major milestone towards demonstrating our journey to full commercialization.”

Earlier this year, United, which was reportedly the first airline to announce its goal of net zero carbon emissions by 2050, launched its UAV Sustainable Flight FundSM. The fund, which named Cemvita to its inaugural group of portfolio companies, has raised over $200 million, as of this summer.

Moji and Tara Karimi co-founded Cemvita in 2017. Photo courtesy of Cemvita

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This article originally ran on EnergyCapital.

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Houston energy giants rank high on new corporate startup activity report

startup support

Eight major players in Houston’s energy industry rank among the world’s top 20 energy companies for corporate startup activity.

The inaugural Corporate Startup Activity Index 2025, published by StartupBlink, ranks global corporations by industry. The eight Houston-area employers fall into the index’s energy and environment category.

Researchers from StartupBlink, an innovation research platform, scored more than 370 companies based on three factors: corporate involvement in startup activity, startup success and ecosystem integration.

The eight Houston-area energy employers that landed in the energy and environment category’s top 20 are:

  • No. 3 BP. Score: 13.547. U.S. headquarters in Houston.
  • No. 5 Saudi Aramco. Score: 7.405. Americas headquarters in Houston.
  • No. 7 Eni. Score: 6.255. Headquarters of Eni U.S. Operating Co. in Houston.
  • No. 8 Shell. Score: 6.217. U.S. headquarters in Houston.
  • No. 11 Occidental Petroleum. Score: 5.347. Global headquarters in Houston.
  • No. 15 Engie. Score: 3.352. North American headquarters in Houston.
  • No. 17 Repsol. Score: 2.980. U.S. headquarters for oil and gas operations in The Woodlands.
  • No. 19 Chevron. Score: 2.017. Global headquarters in Houston.

“Building a startup is hard, and navigating corporate innovation can be just as complex. This ranking is a step toward making the connection between startups and corporations more transparent, enabling startups and corporations to collaborate more effectively for mutual success,” said Eli David Rokah, CEO of StartupBlink.

Salesforce topped the global index with a score of 380.090, followed by Intel, Google, Qualcomm, and Comcast.

Houston researchers develop strong biomaterial that could replace plastic

plastic problem

Collaborators from two Houston universities are leading the way in engineering a biomaterial into a scalable, multifunctional material that could potentially replace plastic.

The research was led by Muhammad Maksud Rahman, an assistant professor of mechanical and aerospace engineering at the University of Houston and an adjunct assistant professor of materials science and nanoengineering at Rice University. The team shared its findings in a study in the journal Nature Communications earlier this month. M.A.S.R. Saadi, a doctoral student in material science and nanoengineering at Rice, served as the first author.

The study introduced a biosynthesis technique that aligns bacterial cellulose fibers in real-time, which resulted in robust biopolymer sheets with “exceptional mechanical properties,” according to the researchers.

Biomaterials typically have weaker mechanical properties than their synthetic counterparts. However, the team was able to develop sheets of material with similar strengths to some metals and glasses. And still, the material was foldable and fully biodegradable.

To achieve this, the team developed a rotational bioreactor and utilized fluid motion to guide the bacteria fibers into a consistent alignment, rather than allowing them to align randomly, as they would in nature.

The process also allowed the team to easily integrate nanoscale additives—like graphene, carbon nanotubes and boron nitride—making the sheets stronger and improving the thermal properties.

“This dynamic biosynthesis approach enables the creation of stronger materials with greater functionality,” Saadi said in a release. “The method allows for the easy integration of various nanoscale additives directly into the bacterial cellulose, making it possible to customize material properties for specific applications.”

Ultimately, the scientists at UH and Rice hope this discovery could be used for the “next disposable water bottle,” which would be made by biodegradable biopolymers in bacterial cellulose, an abundant resource on Earth.

Additionally, the team sees applications for the materials in the packaging, breathable textiles, electronics, food and energy sectors.

“We envision these strong, multifunctional and eco-friendly bacterial cellulose sheets becoming ubiquitous, replacing plastics in various industries and helping mitigate environmental damage,” Rahman said the release.

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This article originally appeared on our sister site, EnergyCapitalHTX.com.

U.S. News ranks Houston hospital No. 1 in Texas for 14th year in a row

Topping the Charts

U.S. News & World Report has released its 2025 rankings of the best hospitals in Texas, and they prove that Houston is in good hands.

The esteemed Houston Methodist Hospital was rated the No. 1 best hospital in Texas for the 14th consecutive year, and the No. 1 hospital in the metro area. Eleven more Houston-area hospitals earned spots among the statewide top 35.

U.S. News annually evaluates 581 Texas hospitals to determine which meet the publication's rigorous standards and offer the best care for patients. Hospitals are also ranked among 15 specialties, including cancer, cardiology, heart and vascular surgery, obstetrics and gynecology, orthopedics, psychiatry, rehabilitation, diabetes and endocrinology, and more.

Houston Methodist also appeared on U.S. News' prestigious list of Honor Roll hospitals, consisting of 20 medical centers that are deemed the "best of the best" hospitals in the nation. No other Texas hospitals made the list, further proving that Houston Methodist takes exceptional care of its patients.

"This is a tremendous achievement for our physicians and employees who dedicate themselves every day to our patients," said Marc Boom, M.D., president and CEO of Houston Methodist, in a press release. "We take pride in these national recognitions but more importantly, these accolades reflect our unparalleled commitment to keeping our patients at the center of everything we do."

Houston Methodist earned several top-20 rankings across 11 of the 15 total specialties nationwide. It also earned national recognition for having the 7th best gastroenterology/GI surgery program, the 8th best pulmonology and lung surgery programs, and the 10th best diabetes and endocrinology programs in the country.

Elsewhere in Houston, The University of Texas MD Anderson Cancer Center ranked as the No. 1 best cancer hospital in the nation for the 11th year in a row.

"We are honored to again be ranked as the nation’s top hospital for cancer care – a recognition that reaffirms our commitment to our shared mission to end cancer," said MD Anderson president Peter WT Pisters, M.D., in a release. "We are grateful to every one of our teammates, trainees, students, donors, volunteers, advocates and patients, whose unwavering dedication make it possible for MD Anderson to deliver outstanding patient care."

Other top-performing Houston-area hospitals that ranked among the best in Texas include:

  • No. 4 – Baylor St. Luke's Medical Center
  • No. 5 – Memorial Hermann Greater Heights Hospital
  • No. 6 – Memorial Hermann Hospital
  • No. 8 – Houston Methodist Sugar Land Hospital
  • No. 9 – Houston Methodist Willowbrook Hospital
  • No. 12 – Houston Methodist The Woodlands Hospital
  • No. 13 – Memorial Hermann Memorial City Medical Center (tied with Baylor Scott and White All Saints Medical Center - Fort Worth)
  • No. 21 – Houston Methdodist Baytown Hospital (tied with Methodist Hospital - Stone Oak in San Antonio and Texas Health Harris Methodist Hospital Fort Worth)
  • No. 25 – HCA Houston Healthcare Clear Lake in Webster (tied with St. Luke's Health - The Woodlands Hospital, Baylor Scott and White Medical Center - Round Rock-Lakeway, and Texas Health Presbyterian Hospital Plano)
  • No. 29 – University of Texas Medical Branch in Galveston (tied with Medical City Plano)
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This article originally appeared on CultureMap.com.

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