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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2 Houston space tech cos. celebrate major tech milestones

big wins

Two Houston aerospace companies — Intuitive Machines and Venus Aerospace — have reached testing milestones for equipment they’re developing.

Intuitive Machines recently completed the first round of “human in the loop” testing for its Moon RACER (Reusable Autonomous Crewed Exploration Rover) lunar terrain vehicle. The company conducted the test at NASA’s Johnson Space Center.

RACER is one of three lunar terrain vehicles being considered by NASA for the space agency’s Artemis initiative, which will send astronauts to the moon.

NASA says human-in-the-loop testing can reveal design flaws and technical problems, and can lead to cost-efficient improvements. In addition, it can elevate the design process from 2D to 3D modeling.

Intuitive Machines says the testing “proved invaluable.” NASA astronauts served as test subjects who provided feedback about the Moon RACER’s functionality.

The Moon RACER, featuring a rechargeable electric battery and a robotic arm, will be able to accommodate two astronauts and more than 880 pounds of cargo. It’s being designed to pull a trailer loaded with more than 1,760 pounds of cargo.

Another Houston company, Venus Aerospace, recently achieved ignition of its VDR2 rocket engine. The engine, being developed in tandem with Ohio-based Velontra — which aims to produce hypersonic planes — combines the functions of a rotating detonation rocket engine with those of a ramjet.

A rotating detonation rocket engine, which isn’t equipped with moving parts, rapidly burns fuel via a supersonic detonation wave, according to the Air Force Research Laboratory. In turn, the engine delivers high performance in a small volume, the lab says. This savings in volume can offer range, speed, and affordability benefits compared with ramjets, rockets, and gas turbines.

A ramjet is a type of “air breathing” jet engine that does not include a rotary engine, according to the SKYbrary electronic database. Instead, it uses the forward motion of the engine to compress incoming air.

A ramjet can’t function at zero airspeed, so it can’t power an aircraft during all phases of flight, according to SKYbrary. Therefore, it must be paired with another kind of propulsion, such as a rotating detonation rocket engine, to enable acceleration at a speed where the ramjet can produce thrust.

“With this successful test and ignition, Venus Aerospace has demonstrated the exceptional ability to start a [ramjet] at takeoff speed, which is revolutionary,” the company says.

Venus Aerospace plans further testing of its engine in 2025.

Venus Aerospace, recently achieved ignition of its VDR2 rocket engine. Photo courtesy of Venus Aerospace

METRO rolls out electric shuttles for downtown Houston commuters

on a roll

The innovative METRO microtransit program will be expanding to the downtown area, the Metropolitan Transit Authority of Harris County announced on Monday.

“Microtransit is a proven solution to get more people where they need to go safely and efficiently,” Houston Mayor John Whitmire said in a statement. “Connected communities are safer communities, and bringing microtransit to Houston builds on my promise for smart, fiscally-sound infrastructure growth.”

The program started in June 2023 when the city’s nonprofit Evolve Houston partnered with the for-profit Ryde company to offer free shuttle service to residents of Second and Third Ward. The shuttles are all-electric and take riders to bus stops, medical buildings, and grocery stores. Essentially, it works as a traditional ride-share service but focuses on multiple passengers in areas where bus access may involve hazards or other obstacles. Riders access the system through the Ride Circuit app.

So far, the microtransit system has made a positive impact in the wards according to METRO. This has led to the current expansion into the downtown area. The system is not designed to replace the standard bus service, but to help riders navigate to it through areas where bus service is more difficult.

“Integrating microtransit into METRO’s public transit system demonstrates a commitment to finding innovative solutions that meet our customers where they are,” said METRO Board Chair Elizabeth Gonzalez Brock. “This on-demand service provides a flexible, easier way to reach METRO buses and rail lines and will grow ridership by solving the first- and last-mile challenges that have hindered people’s ability to choose METRO.”

The City of Houston approved a renewal of the microtransit program in July, authorizing Evolve Houston to spend $1.3 million on it. Some, like council member Letitia Plummer, have questioned whether microtransit is really the future for METRO as the service cuts lines such as the University Corridor.

However, the microtransit system serves clear and longstanding needs in Houston. Getting to and from bus stops in the city with its long blocks, spread-out communities, and fickle pedestrian ways can be difficult, especially for poor or disabled riders. While the bus and rail work fine for longer distances, shorter ones can be underserved.

Even in places like downtown where stops are plentiful, movement between them can still involve walks of a mile or more, and may not serve for short trips.

“Our microtransit service is a game-changer for connecting people, and we are thrilled to launch it in downtown Houston,” said Evolve executive director Casey Brown. “The all-electric, on-demand service complements METRO’s existing fixed-route systems while offering a new solution for short trips. This launch marks an important milestone for our service, and we look forward to introducing additional zones in the new year — improving access to public transit and local destinations.”

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This article originally ran on CultureMap.