Houston-based Citroniq Chemicals has secured its series A funding. Photo via Getty Images

A fresh $12 million round of funding will enable Houston-based Citroniq Chemicals to propel planning, design, and construction of its first decarbonization plant.

An unidentified multinational energy technology company led the series A round, with participation from Houston-based Lummus Technology Ventures and cooperation from the State of Nebraska. The Citroniq plant, which will produce green polypropylene, will be located in Nebraska.

“Lummus’ latest investment in Citroniq builds on this progress and strengthens our partnership, working together to lower carbon emissions in the plastics industry,” Leon de Bruyn, president and CEO of Lummus Technology, says in a news release.

Citroniq is putting together a decarbonization platform designed to annually capture 2 million metric tons of greenhouse gas emissions at each plant. The company plans to invest more than $5 billion into its green polypropylene plants. Polypropylene is a thermoplastic resin commonly used for injection molding.

The series A round “is just the first step in our journey towards building multiple biomanufacturing hubs, boosting the Nebraska bioeconomy by converting local ethanol into valuable bioplastics,” says Kelly Knopp, co-founder and CEO of Citroniq.

Citroniq’s platform for the chemical and plastics industries uses technology and U.S.-produced ethanol to enable low-cost carbon capture. Citroniq’s process permanently sequesters carbon into a useful plastic pellet.

Lummus Technology licenses process technologies for clean fuels, renewables, petrochemicals, polymers, gas processing and supply lifecycle services, catalysts, proprietary equipment, and digital transformation.

Margarita Kelrikh, counsel at Pillsbury, joins the Houston Innovators Podcast to discuss her career, legal tips for startups, and why she's dedicated to the Houston startup community. Photo courtesy

Why this lawyer is dedicated to problem solving for the Houston startup ecosystem

HOUSTON INNOVATORS PODCAST EPISODE 249

Margarita Kelrikh has taken a circuitous route to her new role working with her Houston startup clients at Pillsbury.

She started out her legal career in New York as a debt attorney, transitioned to investment banking then worked in-house at WeWork at its peak, before moving to Houston in 2022 with a mission of representing startups as an emerging companies and venture capital lawyer.

The common thread of her career? Tackling the most challenging problems she can get her hands on.

"I have this instinct — when someone tells me a problem, I say, 'Let me solve that for you,'" Kelrikh, who serves as counsel at Pillsbury, explains on the Houston Innovators Podcast.

After working in house for most of her career, her decision to go back into working at a law firm stemmed from wanting new, fresh, and varied problems for the connections she made and continues to make in the startup ecosystems of New York and now Houston.

"I realized I wanted to work with the people who I worked with in the past, and the only way I could do that is if I went back to a law firm," she says, explaining that working in house means you can only have one client: your employer. "It's about having that variety and being able to work with a wide array of people"

Since moving to Houston, she's dove headfirst into the startup community by going at events and other programming to grow her connections locally. Kelrikh says she doesn't see many EC/VC lawyers showing up like she does.

"What I really want to do at Pillsbury is to really spend time on investing in the Houston startup community," she says, explaining that this includes hosting events and office hours. "Pillsbury is really committed to the Texas and Houston markets."

Kelrikh's client list is industry agnostic, and says she usually looks for founders who have started their businesses, maybe reached some product-market fit, and is gearing up to raise their first round of funding. But there are some instances when she'll take promising, high-growth potential companies at incorporation stage.

"Some companies don't need to hire a lawyer — they just need someone to point them in the right direction," she says, adding that even if a company isn't ready to hire Pillsbury yet, the firm has a lot of free and useful resources on its platform, Pillsbury Propel.

In the same vein, Kelrikh shares some of her go-to startup legal advice on the podcast, and she emphasizes how ready and willing she is to serve the Houston startup community.

"What I like about Houston as a startup ecosystem is it's a startup itself, and that's my absolute sweet spot," she says. "For anybody who wants to be involved, not only is there an opportunity to participate, but there's an opportunity to take a really active role to build it."

Fervo Energy went from a 5,158-square-foot space to a 23,782-square-foot office in downtown Houston. Photo via Hines

Growing Houston energy startup scales local office presence

settling in

On the heels of landing more than $240 million in venture capital, Houston-based geothermal power provider Fervo Energy has more than quadrupled the size of its headquarters.

Fervo previously occupied 5,158 square feet at 114 Main St. in downtown Houston. The company recently left the Main Street space and leased 23,782 square feet at downtown Houston’s 910 Louisiana office tower. Houston-based commercial real estate company Hines owns and manages the 50-story former One Shell Plaza.

“We believe Houston is the center of the energy transition, and downtown Houston has long been its center of activity,” Tim Latimer, co-founder and CEO of Fervo Energy, says in a news release. “The availability of dining options, parks, and biking infrastructure continue to be great assets and a huge draw for our team. For these reasons and more, the only place for Fervo’s headquarters is downtown Houston.”

In February 2024, Fervo announced it had raised $244 million in an investment round led by Oklahoma City, Oklahoma-based hydrocarbon exploration company Devon Energy. Fervo has collected $431 million in funding since its founding in 2017.

Energy companies like Fervo occupy about 43 percent of office space in downtown Houston, according to a new report from the Downtown Houston+ organization. Nineteen new tenants set up shop last year in downtown Houston, with 10 of them operating in the energy sector.

Other energy companies that recently leased office space in downtown Houston include:

  • AES Clean Energy
  • Axip Energy Services
  • EnLink Midstream
  • MRC Global
  • Repsol Renewables
  • Stonepeak
Heimdall supplies software and sensors for monitoring overhead power lines. Photo via heimdallpower.com

Power grid tech co. with Houston HQ raises $25M series B

money moves

A Norway-based provider of technology for power grids whose U.S. headquarters is in Houston has raised a $25 million series B round of funding.

The venture capital arm of Polish energy giant Orlen, Norwegian cleantech fund NRP Zero, and the Norway-based Steinsvik Family Office co-led Heimdall Energy's round. Existing investors, including Investinor, Ebony, Hafslund, Lyse, and Sarsia Seed, chipped in $8.5 million of the $25 million round.

“This funding gives us fuel to grow internationally, as we continue to build our organization with the best people and industry experts in the world,” Jørgen Festervoll, CEO of Heimdall, says in a news release.

Founded in 2016, Heimdall supplies software and sensors for monitoring overhead power lines. The company says its technology can generate up to 40 percent in additional transmission capacity from existing power lines.

Heimdall entered the U.S. market in 2023 with the opening of its Houston office after operating for several years in the European market.

“Heimdall Power has built itself a unique position as an enabler for the ongoing energy transition, with fast-increasing electricity demand and queues of renewables waiting to get connected,” says Marek Garniewski, president of Orlen’s VC fund.

Heimdall says it will put the fresh funding toward scaling up production and installation of its “magic ball” sphere-shaped sensors. In the U.S., these sensors help operators of power grids maximize the capacity of the aging power infrastructure.

“In the United States alone, there are over 500,000 miles of power lines — most of which have a far higher transmission capacity than grid operators have historically been able to realize. To increase capacity, many have launched large-scale and expensive infrastructure projects,” Heimdall says.

Now, the U.S. government has stepped in to ensure that utilities are gaining more capacity from the existing infrastructure, aiming to upgrade 100,000 miles of transmission lines over the next five years.

Heimdall's technology enables grid operators and utilities to boost transmission capacity without undertaking lengthy, costly infrastructure projects. Earlier this year, the company kicked off the largest grid optimization project in the U.S. with Minnesota-based Great River Energy.

Octagos Health has announced a $43 million series B raise that will bring their technology to many more hearts. Image via octagoshealth.com

Houston cardiac health startup raises $43 million series B to grow AI-backed platform

money moves

A Houston-based tech company that has a product line of software solutions for cardiac health has raised funding.

Octagos Health, the parent company of Atlas AI — a software platform for cardiac devices like pacemakers, defibrillators, ambulatory monitors and consumer wearables — has announced a $43 million series B raise that will bring their technology to many more hearts.

Morgan Stanley Investment Capital led the investment, which also included funds from Mucker Capital and other continuing strategic investors. The goal of the raise is to supply funds to accelerate Atlas AI’s growth across the United States and to expand into other areas of care, including ambulatory monitors, consumer wearables, and sleep.

"This investment will enable us to accelerate enhancements to our platform, in addition to scaling our commercial team and operations. We are currently the only company that helps cardiology practices migrate their historical data from legacy software providers and fully integrates with any EHR (exertion heart rate) system. We do this while enabling customized reporting supported by patient and practice decision-support analytics," says Eric Olsen, COO of Octagos Health, in a press release.

Octagos Health was founded by a team of healthcare pros including CEO Shanti Bansal, a cardiologist and founder of Houston Heart Rhythm, an atrial fibrillation center. The goal was to find a new way to deal with the massive amount of data that clinicians encounter each day in a way that combines software and the work of human doctors.

According to the Octagos Health website, “Our solution allows clinicians to focus on other ways of delivering meaningful healthcare and more efficiently manage their remotely monitored patients.”

It works thanks to customizable reporting features that allow patients’ healthcare teams to get help while monitoring them, but to do it precisely as they would if they were crunching numbers themselves.

"We are excited to partner with Octagos Health and support their vision of transforming cardiac care," says Melissa Daniels, managing director of Morgan Stanley Expansion Capital. "Octagos Health has demonstrated exceptional growth and innovation in a critical area of healthcare. We believe their platform and vertically integrated software and services significantly improve patient care and streamline cardiac monitoring processes for healthcare providers."

Will Hsu, co-founder and partner of Mucker Capital, agrees. “Octagos Health is poised for scale – industry leading gross margins, a very sticky product that doctors and clinical staff love, and a market ready for disruption with artificial intelligence. This is the new wave for diagnostic care,” he says. And with this raise, it will be available to even more clinicians and patients across the country.

CashPool is a new mobile platform that gives everyday investors the opportunity to derive influence from the investment strategies and trades made by trusted and influential stock traders. Photo via joinmypool.co

Houston investors back new platform for retail traders looking to follow financial influencers

making a splash

As anyone who witnessed the impact Gamestop's meme stock had on the country already realizes, influential investors can drive momentum within the financial sector. And one company with fresh funding from a Houston firm is betting on that exactly.

CashPool is a new mobile platform that gives everyday investors the opportunity to derive influence from the investment strategies and trades made by trusted and influential stock traders who have built substantial followings on social media platforms. By allowing retail traders the chance to join social media influencers’ various “pools” on its platform, CashPool is primed to change the way the masses acquire wealth.

This is the kind of algorithmic trading aimed at a new generation of investors that gets the attention of early-stage venture capital funds like Houston-based Ten X Labs, a pre-seed angel fund that recently invested in CashPool to help the trading platform continue its mission of transforming the investment landscape.

"We are thrilled to receive funding from Ten X Labs, as it validates our innovative approach to trading and investing," CashPool Founder and CEO Averett Barksdale says in a news release. "This investment will enable us to further enhance our platform, expand our user base and continue to revolutionize the industry. We believe that everyone should have transparent, governed access to profitable trading and investment opportunities, and through CashPool we are making that vision a reality."

Connecting the dots

CashPool is broker agnostic connector, allowing its users to keep their current brokers like Robinhood, Coinbase, Charles Schwab, Acorns, Fidelity, ETRADE, Stash, Sofi and Betterment and creates a seamless investment experience.

“We are that middle piece,” says Barksdale. “So your money stays on whatever brokerage you’ve connected to the platform, and we just execute the trades on your brokerage for you.”

Considering that users’ money remains with their original brokerage, how does CashPool monetize its platform?

“We don’t charge users to execute trades,” says Barksdale. “We charge per pool you join. So, on our platform, strategies are called pools and a user can join as many strategies as they want.”

Financial influencers set the strategies. These are profitable traders who have become influencers on various social media platforms and built-up followings comprised of people who are or are desiring to be retail traders themselves.

“There are a ton of people out there who actually are profitable traders,” says Barksdale. “Same as what we saw happen with GameStop and the whole Reddit situation. That was a financial influencer, right? It just so happens that he had a strategy that he thought would work and it turned out for a while it did work, right?

“We want to not only empower the retail trader, but empower these financial influencers who are profitable as well. Just because it's a whole marketplace out there for it. But a lot of times the retail trader doesn't quite understand who to go with. On our platform, you could see the results of these financial influencers right before your eyes on our platform. So you can see if they're profitable or not, or if someone's just on Instagram or whatever, social media platform posting screenshots but aren’t actually executing those trades.”

Increasing transparency

With trading, past success can be an arbiter for future performance, so with CashPool, users can choose to join the pools of influencers who have documented success as a trader on the platform.

“On our platform you can't hide,” says Barksdale. “We're connected to their brokerage account, so we see what trades they're making in real time. We also see their performance in real time, and we display that on the platform. That's something that you really can't get around. So if someone on Instagram says they traded this stock, then I made X amount of dollars and had this percentage of return, then you go to the platform and look at your pool and see they didn't do that and were lying the whole time, it’s literally just putting everything out there in the open. We have the kind of transparency that doesn't exist currently right now in the space.”

Broadcasting one’s successes is easy, but what about the losses?

“I thought it was going to be a lot more difficult just thinking, do people really want to show what they're doing?” says Barksdale. “But the thing that I've seen is a lot of these traders are a whole lot more competitive. And the traders who are doing it, they're constantly talking out against people who aren't actually doing it in real life.

“A lot of the traders who are actually profitable, they do live trades every day. But how do users if they should pay to get into a specific trader’s live trading session? Like, how do they know they're profitable already?

“On CashPool, users can see an actual influencer's win rate and say, 'Okay, 86 percent of the time they are profitable, and I could see how many trades they've made in total.' From that standpoint, users can make an educated decision on what pools to join and pay for.”

CashPool users can join as many pools as they see fit, but the cost of each pool’s membership may vary due to the popularity or success percentage rate of the financial influencer.

“You can join as many pools as you want, but what we suggest is you start by joining the pools of influencers that you already follow and trust, that you're already following like on Twitter or YouTube or Instagram or whatever it may be,” says Barksdale. “We are suggesting that you follow them first and you join their pools first. What we do is on the monetization side is we allow the creators on our platform who are the influencers to set their own price for their pool.”

Building a secure network

Outside of who or what to follow, information security is likely a concern for potential users. Financial influencers’ trade information is readily available (win percentages and number of trades, not dollar amounts), but users’ won’t be able to see other users’ information on the platform.

“Currently, we have a list of 10 brokerages who are on board, and then we're working to onboard more as we keep going on,” says Barksdale. “So, we have like your Interactive brokerages, and we also have a few other ones that are UK specific and Canada specific. We would love to have every single brokerage on the platform, but unfortunately, there are a couple that are still kind of playing hard to get, so to speak.”

The first rollout of CashPool is set, but version two will likely include content creation from the financial influencers.

Barksdale, who has a background in product development and experience working at companies like Charles Schwab and Fidelity, is mostly excited about the prospect of CashPool unlocking expert financial strategies for everyone, not just the financial advisors behind the closed doors of Wall Street.

“Yes, my philosophy is that financial health and financial growth should be accessible for all,” says Barksdale. “The thing that gets me is it needs to be responsible. So, for example, RobinHood is a platform that doesn't necessarily care if you are making responsible decisions, they just care that you're trading on that platform.

“Our platform is strictly focused on actually being the place where these retail traders can make responsible decisions centered around investing and trading.”

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Houston schools lead rankings for best entrepreneurship programs for 6th consecutive year

top of class

Rice University and the University of Houston have once again topped The Princeton Review and Entrepreneur’s lists of the best graduate and undergraduate schools for entrepreneurship studies.

Rice ranks first in the graduate category for the sixth consecutive year, and UH ranks first in the undergraduate category for the sixth consecutive year.

“At Rice Business, our students learn both inside and outside the classroom, drawing on our strong industry and community connections in Houston and beyond,” says Peter Rodriguez, dean of Rice’s Jones Graduate School of Business. “With small class sizes and tailored programs, we aim to equip our students with the skills to create new ventures and excel in a fast-changing business landscape.”

UH President Renu Khator praises the ranking as recognition for the impact of the Cyvia and Melvyn Wolff Center for Entrepreneurship at the C.T. Bauer College of Business.

“This program is a tremendous asset not only to the University of Houston and the Bauer College of Business, but also to the city of Houston, where entrepreneurship fuels both socioeconomic mobility and economic growth,” Khator says. “We are proud to see the impact of this program reverberate throughout our community.”

Rankings for The Princeton Review and Entrepreneur’s 2025 lists were based on a survey of administrators at nearly 300 schools in the U.S., Canada, Mexico, and Europe that offer entrepreneurship studies. Among the more than 40 factors used for the rankings were academic programs, faculty credentials, mentorship opportunities, and alumni entrepreneurship ventures.

The top 10 schools on the list of the 50 best undergraduate schools for entrepreneurship studies are:

  1. University of Houston
  2. University of Texas at Austin
  3. Babson College
  4. University of Washington
  5. Washington University in St. Louis
  6. University of Michigan-Ann Arbor
  7. University of Maryland-College Park
  8. Miami University of Ohio
  9. Tecnológico de Monterrey in Mexico
  10. Northeastern University

The top 10 schools on the list of the 50 best graduate schools for entrepreneurship studies are:

  1. Rice University
  2. University of California-Los Angeles
  3. University of Michigan-Ann Arbor
  4. Washington University in St. Louis
  5. Babson College
  6. University of Washington
  7. University of Texas at Austin
  8. University of Virginia
  9. Erasmus University Rotterdam in the Netherlands
  10. University of South Florida

2 Houston suburbs rank among top 10 US cities for population growth in 2023

by the numbers

Two burgeoning Houston suburbs – Atascocita and Conroe – are among the top 10 U.S. cities that have experienced the biggest population booms nationwide from 2022 to 2023.

A new population growth analysis by SmartAsset examined U.S. Census population estimates for 2023, 2022, and 2018 to determine one-year and five-year population changes for 610 U.S. cities with populations of at least 65,000 residents in 2023 (where the most recent data was available).

Silver Spring, Maryland had the No. 1 biggest population boom from 2022 to 2023, SmartAsset found. The Washington, D.C. suburb grew 12.86 percent year-over-year, bringing the city's total population from 75,313 to 84,996 residents in 2023.

Atascocita trailed close behind with a 11.03 percent increase in population from 2022 to 2023, which landed it the No. 5 spot in the one-year population change analysis. The city gained 11,876 new residents in that time, adding up to a total population of 119,502 residents in 2023.

This should come as no surprise to those who already live in Atascocita, who may know their hometown was ranked one of the most livable small cities in America in 2022, and earned a top-30 spot in a recent ranking of best U.S. suburbs for house renters in 2024.

According to SmartAsset's five-year population comparison, Atascocita had the second highest growth rate in the country, at 38.56 percent. There were only 86,243 residents living in the far-flung Houston suburb in 2018, showing an increase of 33,259 residents within the five-year period.

The report also examined the changes within Atascocita's working-age population:

  • Number of working-age residents in 2022 – 54,095
  • Number of working-age residents in 2023 – 58,297
  • Percent of population of working age in 2022 – 50.26 percent
  • Percent of population of working age in 2023 – 48.78 percent
  • One-year change in the number of working-age residents from 2022 to 2023 – 7.77 percent increase
Meanwhile, Conroe ranked No. 9 nationally with a 6.73 percent one-year change in total population. Conroe gained over 6,800 residents from 2022 to 2023, bringing the city's total population to 108,244 residents. The city had a far more dramatic five-year growth rate, at 23.49 percent.Conroe has also earned some well-deserved time in the spotlight as one of the best small cities in America in 2024, and the fifth best city for renters in Texas.

The report suggested major population shifts in communities like Atascocita and Conroe can result in "a variety of interwoven economic and social impacts."

"The magnitude of the population change can affect demand for businesses and services, which in turn may impact costs – or even the availability of such amenities," the report's author wrote. "Similarly, the relative age of the population can determine the strength or weakness of the local job market, as well as have an impact on local culture, economic trajectory, tax base and more."

Fast-growing cities elsewhere in Texas
Texas cities dominated the top 10 list of cities where population grew the most from 2022 to 2023.

New Braunfels, a San Antonio suburb, ranked No. 2 nationally with an 12.49 percent one-year population boom, and a 29.68 percent growth rate from 2018 to 2023. The city gained 12,318 new residents in that time, adding up to a total population of 110,961 residents in 2023.

The North Austin suburb of Georgetown (No. 4) ranked one spot above Atascocita with an 11.34 percent one-year population boom, and a 29.85 percent growth rate from 2018 to 2023.

The top 10 U.S. cities where population grew the most from 2022 to 2023 are:

  • No. 1 – Silver Spring, Maryland
  • No. 2 – New Braunfels, Texas
  • No. 3 – Glen Burnie, Maryland
  • No. 4 – Georgetown, Texas
  • No. 5 – Atascocita, Texas
  • No. 6 – Pine Hills, Florida
  • No. 7 – Elgin, Illinois
  • No. 8 – Lehi, Utah
  • No. 9 – Conroe, Texas
  • No. 10 – Dale City, Virginia

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This article originally ran on CultureMap.

Houston innovator builds tech to revolutionize pipeline safety, efficiency

HOUSTON INNOVATORS PODCAST EPISODE 261

After working for years in the downstream energy industry where safety and efficiency were top priorities, Dianna Liu thought there was a way technology could make a huge difference.

Despite loving her company and her job, she took a leap of faith to start a robotics company to create technology to more safely and efficiently monitor corrosion in pipelines. ARIX Technologies has developed software and hardware solutions for its customers with pipelines in downstream and beyond.

"Overall, this industry is an industry that really harps on doing things safely, doing things well, and having all the data to make really informed decisions," Liu says on the Houston Innovators Podcast. "Because these are huge companies with huge problems, it takes a lot of time to set up the right systems, adopt new things, and make changes."

But it's an industry Liu knows well, so she founded ARIX in 2017 and created a team of engineers to create the first iteration of the ARIX robot, which was at first made of wood, she says. Now, years later, the much-evolved robot moves up and down the exterior of the pipe, using its technology to scan the interior to evaluate corrosion. The technology works with ARIX's software to provide key data analysis.

With customers across the country and the world, ARIX has a strong foothold in downstream, but has garnered interest from other verticals as well — even working with NASA at one point, Liu says.

"Staying in downstream would be nice and safe for us, but we've been very lucky and have had customers in midstream, upstream, and even outside oil and gas and chemicals," she says. "We've gotten inquiries ranging from cosmetics plants to water or wastewater — essentially anything that's round or a pipe that can corrode, we can help with."

Liu, who goes into detail on the show about how critical establishing a positive company culture has been for ARIX, shares a bit about what it's been like growing her company in Houston.

"Houston being the Energy Capital of the World opens a lot of doors to both customers, investors, and employees in a way that's unparalleled. It is a great place to build a company because of that — you have all this expertise in this city and the surrounding areas that's hard to find elsewhere," she says. "Being such a hub — not only for energy, but in terms transportation — means it's easy for us to get to our customers from around the world."