Nádia Skorupa Parachin joined Cemvita as vice president of industrial biotechnology. Photo courtesy of Cemvita

Houston-based biotech company Cemvita recently tapped two executives to help commercialize its sustainable fuel made from carbon waste.

Nádia Skorupa Parachin came aboard as vice president of industrial biotechnology, and Phil Garcia was promoted to vice president of commercialization.

Parachin most recently oversaw several projects at Boston-based biotech company Ginkjo Bioworks. She previously co-founded Brazilian biotech startup Integra Bioprocessos.

Parachin will lead the Cemvita team that’s developing technology for production of bio-manufactured oil.

“It’s a fantastic moment, as we’re poised to take our prototyping to the next level, and all under the innovative direction of our co-founder Tara Karimi,” Parachin says in a news release. “We will be bringing something truly remarkable to market and ensuring it’s cost-effective.”

Moji Karimi, co-founder and CEO of Cemvita, says the hiring of Parachin represents “the natural next step” toward commercializing the startup’s carbon-to-oil process.

“Her background prepared her to bring the best out of the scientists at the inflection point of commercialization — really bringing things to life,” says Moji Karimi, Tara’s brother.

Parachin joins Garcia on Cemvita’s executive team.

Before being promoted to vice president of commercialization, Garcia was the startup’s commercial director and business development manager. He has a background in engineering and business development.

Founded in 2017, Cemvita recently announced a breakthrough that enables production of large quantities of oil derived from carbon waste.

In 2023, United Airlines agreed to buy up to one billion gallons of sustainable aviation fuel from Cemvita’s first full-scale plant over the course of 20 years.

Cemvita’s investors include the UAV Sustainable Flight Fund, an investment arm of Chicago-based United; Oxy Low Carbon Ventures, an investment arm of Houston-based energy company Occidental Petroleum; and Japanese equipment and machinery manufacturer Mitsubishi Heavy Industries.

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This article originally ran on EnergyCapital.

Moji Karimi joins the Houston Innovators Podcast to share how Cemvita has evolved with three distinct lines of energy transition businesses. Photo courtesy of Digital Wildcatters

Houston biotech company expands as a network of startups with energy transition solutions

HOUSTON INNOVATORS PODCAST EPISODE 217

A lot has changed since Moji Karimi co-founded his biotech company Cemvita with his sister Tara in 2017. In fact, a lot has changed just in 2023 — for Cemvita, for the energy transition, and for world as a whole.

In the past year, Cemvita has evolved its business to target three verticals, all within the company's mission of using synthetic biology to create solutions for the energy transition. Now, as Karimi explains on the Houston Innovators Podcast, Cemvita is a startup of startups.

Its eCO2 business line targets carbon dioxide utilization for feedstock, the technology's legacy application. But this year, Cemvita spun out its gold hydrogen arm into Gold H2, which has celebrated a successful pilot in the Permian Basin and raised early-stage funding. Cemvita has another vertical, a resource mining operation — under its Endolith spinoff — that operates out of a satellite office in Colorado.

While tackling the various verticals might seem ambitious, Karimi explains that they are all aligned with Cemvita's core mission and technology.

"If you think about it, everything we're doing has something to do with nature," he says on the show. "Environmental microbiology, biotech, and synthetic biology — it's now available, and we have the tools to do it. We want to be the company that goes and finds those applications and translates it from the idea and the science to the technology, and then scale it up into the engineer solution."



The way Cemvita is doing it is through partnerships. Karimi says he doesn't care about his logo being on the side of his plant, rather that a company can take the technology and apply it on a greater scale.

"The core of what we do is collaboration," he says. "What we care about is for the solutions to come to life."

Cemvita has a longstanding partnership with Oxy, first as an early investor in 2019, and later committing to establishing a plant around Cemvita's CO2-converting tech. Similarly, United Airlines invested in Cemvita before securing a massive offtake agreement with the airline for sustainable aviation fuel.

On the podcast, Karimi share some of his advice and observations on tackling startup-corporate relationships, as well as how these partnerships will continue in the new year. Karimi described 2023 as a year of resiliency, and he has big plans to deliver on for 2024.

"This next year is all about focused execution," he says, noting specifically a pre-commercial demo plant for CO2 utilization, a gold hydrogen field trial to prove out tech for Gold H2, and ongoing speed column tests for Endolith.

"We're graduating from the startup phase," Karimi says. "We need to make sure we don't lose the agility of being a startup."

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

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

ready for takeoff

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.

The opening of the pilot plant marks the debut of Cemvita’s eCO2 business as a wholly owned subsidiary. Photo courtesy of Cemvita

Fast-growing startup with carbon-free solution sets up pilot plant in Houston

big moves

Cleantech startup Cemvita has set up a pilot plant in its hometown of Houston to develop technology for converting carbon emissions as feedstock to make products like fertilizer, plastics, methane, and fuel.

The opening of the pilot plant marks the debut of Cemvita’s eCO2 business as a wholly owned subsidiary. The term eCO2 refers to equivalent carbon dioxide, or a way to measure a combination of greenhouse gases such as carbon dioxide and methane.

With a capacity of more than 14,000 gallons, the plant is producing eCO2 oil, an alternative to soybean oil. The company already is shipping samples of eCO2 products to customers, including renewable-fuel companies and plastics manufacturers.

Cemvita says the biofuel industry is facing feedstock shortages and price fluctuations. Biofuel feedstocks produce starches or sugars that can be converted to produce ethanol, while others produce oil that can be used in biodiesel production, according to the Sustainable Agriculture Research & Education (SARE) program.

“Traditional biofuels, including renewable diesel and sustainable aviation fuel, have relied on oils derived from crops, such as soybean and corn, as well as recycled vegetable oils,” Cemvita says. “As demand grows for petroleum-free alternatives, feedstock is in short supply and must compete with food markets. Crops of soybeans, sugar, and corn use huge swaths of land, and the raw materials require extensive refining — two factors that impede the processes from being sustainable.”

By contrast, eCO2 plants like Cemvita’s can supply feedstock production with minimal land and electricity requirements, and without relying on hydrogen or sunlight, the company says. Furthermore, the output of eCO2 plants is designed to carbon-negative, not just carbon-neutral.

Cemvita’s eCO2 biomanufacturing platform uses engineered microbes that absorb and convert carbon dioxide into feedstocks and finished products.

“The energy transition requires completely new, cost-effective approaches for heavy industry,” Charlie Nelson, chief operating officer of Cemvita, says in a news release. “We built this next-generation pilot plant in response to strong demand from … partners who are actively seeking sustainable solutions to the … feedstock shortage.”

Brother-and-sister team Moji and Tara Karimi founded Cemvita in 2017.

Investors in Cemvita include Oxy Low Carbon Ventures, an investment arm of Houston-based Occidental Petroleum, as well as BHP Group, Mitsubishi, and United Airlines Ventures.

Oxy Low Carbon Ventures and United Airlines Ventures are financing Cemvita’s work on sustainable jet fuel. United Airlines operates a hub at George Bush Intercontinental Airport Houston.

Cemvita has some news regarding its C-level execs. Photo courtesy of Cemvita

Houston biotech company expands leadership team

growing biz

An innovative Houston startup that's working with energy companies to decarbonize their operations has made changes to its C-suite.

Tara Karimi, who co-founded Cemvita with her brother Moji, has transition to the company's chief science officer. Liz Dennett has been hired to Karimi's previous role of CTO. The changes enable Karimi to focus on leading Cemvita's scientific research and development efforts as well as participating in driving innovation within the biotech industry as a whole, according to the company's press release.

"I'm excited to take on the role of chief science officer at Cemvita and what it represents for our company's growth," says Karimi in the release. "As chief science officer, I look forward to shaping policy and driving the conversation around the role of biotechnology in the energy transition."

As CTO, Dennett will lead the development of Cemvita's unique biotech products that tap into microbes to decarbonize operations on energy plants. Most recently, Dennett was vice president of data architecture and data engineering at Wood Mackenzie. She previously worked in tech and sustainability-focused roles at Hess Corp., Biota Technology, and Amazon Web Services.

“Working with biological systems presents a unique challenge but also a unique opportunity," says Dennett in the release. "It’s uniquely difficult to go from benchtop to in-situ reactors or oil wells with microbes and to achieve the kind of incredible results that we’re seeing in the lab. You need to build teams with deep specializations in chemistry, biology, energy systems, and geology.”

Dennett, who has her PhD and Master's from the University of Wisconsin-Madison and has served on Cemvita's advisory board for about a year, will report to CEO Moji Karimi directly.

“I know that Tara and Liz are going to make history at Cemvita,” says Moji Karimi in the release. “With 15 years of experience using data-driven approaches to solve pressing energy challenges, Liz brings to bear the kind of creativity and expertise that can quickly and meaningfully advance Cemvita’s impact on the Energy Transition.”

At a recent SXSW panel, four Houston energy experts discussed the importance of research, commercialization, and more in Houston to drive the energy transition. Photo via Getty Images

Experts address Houston's energy transition role — from research to commercialization

Houston @ SXSW

Every part of the energy industry is going to have a role in the energy transition — from the universities where the research and development is happening to the startups and the incumbent industry leaders, as a recent SXSW panel discussed.

“We are well known in Houston for being the energy capital of the world," Jane Stricker, executive director of the Houston Energy Transition Initiative, says as moderator of the panel. "The industry typically comes together with stakeholders to think about the solutions and how to solve this dual challenge of continuing to provide more energy to the world but doing it in a way that significantly reduces emissions at the same time.”

The panel, entitled "Ground Zero: Creating Pathways from Research to Scale Deployment," was put on by HETI, an organization under the Greater Houston Partnership, and took place Sunday, March 12, in Austin at SXSW.

“I often say that I believe Houston is ground zero for the transition because we have this unique combination of assets, infrastructure, innovation, research at universities, and a collective understanding of the importance of energy to people’s lives that allows us to tackle this problem in new ways," she continues.

Sticker was joined by Paul Cherukuri, vice president for innovation at Rice University; Juliana Garaizar, chief development and investment officer at Greentown Labs; and Tara Karimi, co-founder and CTO of Cemvita Factory. The panel highlighted the challenges facing Houston as it promises to lead the energy transition.

For Cherukuri, whose innovation-focused position was newly created when he was appointed to it last August, it's a pivotal moment for research institutions.

"It's really an exciting time in Houston because universities are changing," says Cherukuri. "Rice University itself is changing in dramatic ways, and it's a great opportunity to really plug into the energy transition inside of Houston."

The role he plays, as he explains, is to connect Rice innovators to the rest of the city and the world.

"We have to partner through the accelerators as well as with with companies who can catch what we've made and take it to scale," he continues. "That's uniquely something that we can do in Houston. It's not something that a lot of cities can do."

Representing the scaling efforts is Greentown Labs, and Garaizar explains how the Massachusetts-based organization, which has its second outpost in Houston, connects its member companies to corporate partners that can become funders, pilot partners, customers, and more. But scaling can only be accomplished with the right technologies and the proper funding behind them.

"Sixty percent of the technologies that are going to be used to decarbonize the world haven't yet been invented," she says on the panel. "So, there's a huge pull for technology right now. And we see people who are only on the private equity space now finally invested in a lot of earlier series like series A, but there's still some road to to be made there."

Houston-based Cemvita Factory is in the scale phase, and Karimi explains how she's actively working with companies to apply the company's unique biotechnology to convert CO2 to natural resources to accommodate each customer's needs. Cemvita is on the front lines of interacting with incumbent energy businesses that play a major role in the future of energy.

"The way we communicate with energy companies, we tell them that us to be the innovation arm for you and we work together," Karimi says. "I think it's everybody needs to understand it's a transition. There is no way to just change the way that chemicals are produced just immediately and replace it with something new. It's a transition that needs both aspects."

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13 Houston businesses appear on Time's best midsize companies of 2025

new report

A Houston-based engineering firm KBR tops the list of Texas businesses that appear on Time magazine and Statista’s new ranking of the country’s best midsize companies.

KBR holds down the No. 30 spot, earning a score of 91.53 out of 100. Time and Statista ranked companies based on employee satisfaction, revenue growth, and transparency about sustainability. All 500 companies on the list have annual revenue from $100 million to $10 billion.

According to the Great Place to Work organization, 87 percent of KBR employees rate the company as a great employer.

“At KBR, we do work that matters,” the company says on the Great Place to Work website. “From climate change to space exploration, from energy transition to national security, we are helping solve the great challenges of our time through the high-end, differentiated solutions we provide. In doing so, we’re striving to create a better, safer, more sustainable world.”

KBR recorded revenue of $7.7 billion in 2024, up 11 percent from the previous year.

The other 12 Houston-based companies that landed on the Time/Statista list are:

  • No. 141 Houston-based MRC Global. Score: 85.84
  • No. 168 Houston-based Comfort Systems USA. Score: 84.72
  • No. 175 Houston-based Crown Castle. Score: 84.51
  • No. 176 Houston-based National Oilwell Varco. Score: 84.50
  • No. 234 Houston-based Kirby. Score: 82.48
  • No. 266 Houston-based Nabor Industries. Score: 81.59
  • No. 296 Houston-based Archrock. Score: 80.17
  • No. 327 Houston-based Superior Energy Services. Score: 79.38
  • No. 332 Kingwood-based Insperity. Score: 79.15
  • No. 359 Houston-based CenterPoint Energy. Score: 78.02
  • No. 461 Houston-based Oceaneering. Score: 73.87
  • No. 485 Houston-based Skyward Specialty Insurance. Score: 73.15

Additional Texas companies on the list include:

  • No. 95 Austin-based Natera. Score: 87.26
  • No. 199 Plano-based Tyler Technologies. Score: 86.49
  • No. 139 McKinney-based Globe Life. Score: 85.88
  • No. 140 Dallas-based Trinity Industries. Score: 85.87
  • No. 149 Southlake-based Sabre. Score: 85.58
  • No. 223 Dallas-based Brinker International. Score: 82.87
  • No. 226 Irving-based Darling Ingredients. Score: 82.86
  • No. 256 Dallas-based Copart. Score: 81.78
  • No. 276 Coppell-based Brink’s. Score: 80.90
  • No. 279 Dallas-based Topgolf. Score: 80.79
  • No. 294 Richardson-based Lennox. Score: 80.22
  • No. 308 Dallas-based Primoris Services. Score: 79.96
  • No. 322 Dallas-based Wingstop Restaurants. Score: 79.49
  • No. 335 Fort Worth-based Omnicell. Score: 78.95
  • No. 337 Plano-based Cinemark. Score: 78.91
  • No. 345 Dallas-based Dave & Buster’s. Score: 78.64
  • No. 349 Dallas-based ATI. Score: 78.44
  • No. 385 Frisco-based Addus HomeCare. Score: 76.86
  • No. 414 New Braunfels-based Rush Enterprises. Score: 75.75
  • No. 431 Dallas-based Comerica Bank. Score: 75.20
  • No. 439 Austin-based Q2 Software. Score: 74.85
  • No. 458 San Antonio-based Frost Bank. Score: 73.94
  • No. 475 Fort Worth-based FirstCash. Score: 73.39
  • No. 498 Irving-based Nexstar Broadcasting Group. Score: 72.71

Texas ranks as No. 1 most financially distressed state, says new report

Money Woes

Experiencing financial strife is a nightmare of many Americans, but it appears to be a looming reality for Texans, according to a just-released WalletHub study. It names Texas the No. 1 most "financially distressed" state in America.

To determine the states with the most financially distressed residents, WalletHub compared all 50 states across nine metrics in six major categories, such as average credit scores, the share of people with "accounts in distress" (meaning an account that's in forbearance or has deferred payments), the one-year change in bankruptcy filings from March 2024, and search interest indexes for "debt" and "loans."

Joining Texas among the top five most distressed states are Florida (No. 2), Louisiana (No. 3), Nevada (No. 4), and South Carolina (No. 5).

Texas' new ranking as the most financially distressed state in 2025 may be unexpected, WalletHub says, considering the state has a "bigger GDP than most countries" and still has one of the top 10 best economies in the nation (even though that ranking is also lower than it was in previous years).

Even so, Texas residents are stretching themselves very thin financially this year. Texans had the ninth lowest average credit scores nationwide during the first quarter of 2025, the study found, and Texans had the sixth-highest increase in non-business-related bankruptcy filings over the last year, toppling 22 percent.

"Texas also had the third-highest number of accounts in forbearance or with deferred payments per person, and the seventh-highest share of people with these distressed accounts, at 7.1 percent," the report said.

This is where Texas ranked across the study's six key dimensions, where No. 1 means "most distressed:"

  • No. 5 – "Loans" search interest index rank
  • No. 6 – Change in bankruptcy filings from March 2024 to March 2025 rank
  • No. 7 – Average number of accounts in distress rank
  • No. 8 – People with accounts in distress rank
  • No. 13 – Credit score rank and “debt” search interest index rank
Examining these financial factors on the state level is important for understanding how Americans are faring with economic issues like inflation, unemployment rates, or natural disasters, according to WalletHub analyst Chip Lupo.


"When you combine data about people delaying payments with other metrics like bankruptcy filings and credit score changes, it paints a good picture of the overall economic trends of a state," Lupo said.

On the other side of the spectrum, states like Hawaii (No. 50), Vermont (No. 49), and Alaska (No. 48) are the least financially distressed states in America.

The top 10 states with the most people in financial distress in 2025 are:

  • No. 1 – Texas
  • No. 2 – Florida
  • No. 3 – Louisiana
  • No. 4 – Nevada
  • No. 5 – South Carolina
  • No. 6 – Oklahoma
  • No. 7 – North Carolina
  • No. 8 – Mississippi
  • No. 9 – Kentucky
  • No. 10 – Alabama
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A version of this article originally appeared on CultureMap.com.

Digital Health Institute's new exec director aims to lead innovation and commercialization efforts

new hire

Though our existences have become deeply entangled with technology, our health has been slower to catch up. The creation late last year of the Digital Health Institute was a major step into the future for both Rice University and Houston Methodist, for whom the institute is a joint venture.

The latest news for the Digital Health Institute is the appointment of Pothik Chatterjee to the role of executive director.

“The Digital Health Institute’s collaborative model is uniquely powerful,” Chatterjee told Rice University’s office of media relations. “By bringing together clinicians, engineers and entrepreneurs, we’re building an ecosystem designed to transform how care is delivered and experienced.”

Chatterjee’s role is to help grow the collaboration between the institutions, but the Digital Health Institute already boasts more than 20 active projects, each of which pairs Rice faculty and Methodist clinicians.

“Research is great, but what we really want at the Digital Health Institute is to translate those research findings into products and services that can be used at the patient's bedside,” Chatterjee explained to InnovationMap.

Once the research is in place, it’s up to Chatterjee to find commercial opportunities within the research portfolio. Those include everything from hospital-grade medical imaging wearables to the creation of digital twins for patients to help better treat them.

“As we move from vision to execution, Pothik’s expertise will be essential in helping us strengthen the institutional alignment needed to deliver at scale,” Dr. Khurram Nasir, Methodist’s William A. Zoghbi Centennial Chair in Cardiovascular Medicine and division chief of cardiovascular prevention and wellness, told Rice. “From my vantage point of a health system, the real value lies not just in innovation, but in implementation.”

Nasir’s co-founder is Ashutosh Sabharwal, Rice’s Ernest Dell Butcher Professor of Engineering and professor of electrical and computer engineering.

“The Digital Health Institute is a key step toward advancing health and health care for the benefit of humanity,” Sabharwal said. “We’re thrilled to welcome Pothik to our growing team. His background in health care innovation, research administration and venture investing will be instrumental in translating cutting-edge research into impactful digital health solutions. From leading innovation strategy and forging strong partnerships to driving fundraising and grant development, his leadership will help shape the institute’s long-term success.”

Though Chatterjee has previously worked around the country, including in Boston and Baltimore, he says he believes Houston is uniquely positioned to thrive in the digital health space.

“Houston is the best place to do it, because we have Rice and Houston Methodist,” he told InnovationMap. “[People] want to help keep that innovation in Houston, not just send it off to Silicon Valley or New York or Boston. There seems to be a lot of appetite from the philanthropic community to have homegrown Houston digital health innovation.”