It's not been the easiest year to raise funding, but Houston startup founders managed to secure over $160 million in VC or grant funding last quarter. Photo via Getty Images

The second quarter of 2023 looked a lot like the first when it came to venture capital funding for Houston companies. The whole country — affected by inflation, geopolitical instability, and other factors — has seen a trying time for investment opportunities.

Houston's performance is far from unique. Globally, VC funding is down — a reported 18 percent from Q1 to Q2, per Crunchbase. Year over year, that's a 49 percent decrease from 2022's Q2.

According to InnovationMap reporting, 10 Houston-based, Houston-founded, or soon-to-be Houston-headquartered companies announced VC or grant funding between April and June. Here's a roundup of these second quarter deals — click on each story to read more.


Houston-founded e-commerce unicorn Cart.com raises $60M series C 

Cart.com has secured its unicorn status at a $1.2B valuation with latest round of venture capital funding. Image via Cart.com

A Houston-founded software company — officially a unicorn company, valued at $1 billion or more — has announced the details of its latest fundraise.

Cart.com, which provides a suite of software solutions for commerce and logistics enablement, closed its $60 million series C equity funding round with a $1.2 billion valuation. Investors in the round included B. Riley Venture Capital, Kingfisher Investment Advisors, Snowflake Ventures, Prosperity7 Ventures, Legacy Knight, and more.

According to a news announcement from the company, Cart.com will use the funding for international expansion, continued product development, and to meet increased client demand. Continue reading.

Houston e-commerce company P97 Networks  raises another $40M round to support growth

P97 Networks has again raised $40 million to support its growth. Photo via Getty Images

For the second time in just over a year, a Houston business that provides mobile commerce and digital marketing to the mobility and fuel industries has raised $40 million.

P97 Networks, which has developed a cloud-based mobile commerce platform that helps brands securely do business with customers, announced that it has closed its series C round at $40 million. The equity financing round was led by Portage and included participation from existing investors. The fresh funding will go to support growth strategy.

"In this highly connected world, retail brands are looking for new ways to increase consumer engagement — the power of network effects in the digital world will be a key contributor to revenue growth and margins," says Donald Frieden, CEO of P97 Networks, in a news release. "With consumers of all ages further adopting mobile payment solutions, we are proud to have built the leading connected commerce and digital marketing platform for the convenience retail, energy marketing, and transportation industry." Continue reading.

Podcast: Houston home tech startup SmartAC.com raises $22M to grow sales

Josh Teekell, founder and CEO of SmartAC.com, joins the Houston Innovators Podcast to discuss the latest from his company, which just closed its series B. Photo courtesy

A Houston startup that combines unique sensor technology with software analysis has raised its next round of funding to — according to Founder and CEO Josh Teekell — turbocharge its sales.

SmartAC.com launched in 2020, emerging from stealth with $10 million raised in a series A. Over the past almost three years, the company has firmed up its hardware, developed its software, and pivoted slightly from selling directly to consumers to adopting a B2B approach.

Now, Teekell says he's focused on turbocharging sales to these contractors, and he's going to do that with the funding raised in the series B round that closed this month. He says the company will also grow its team that goes out to deploy the technology and train the contractors on the platform.

"This funding really buys us a couple years of runway through the end of next year and allows us to focus on getting to cash flow breakeven, which is right around our wheelhouse of our abilities here in the next 12 months," Teekell says. "In general, we've accomplished everything we'd be able to accomplish on the hardware side, and now it's just about deployment."

The $22 million SmartAC.com has raised came from local investors. Teekell, who hasn't announced the full list of the round's investors, explains that while traditionally startups might have more opportunity on the coasts for raising money, it's not hard to sell Houstonians on the benefits of SmartAC.com's optimized air conditioning. Continue reading.

Houston fintech startup Brassica raises $8M seed round led by Mercury

A Houston fintech startup is aiming to modernize banking and investing — and has received fresh funding to do it. Photo via Getty Images

A Houston startup has raised millions for its fintech platform — and the company didn't have to go very far to find its lead investor.

Brassica Technologies Inc. closed its seed round at $8 million with Houston-based Mercury Fund leading the round. Valor Equity Partners, Long Journey Ventures, NGC Fund, Neowiz, Broadhaven Ventures, Armyn Capital, VC3DAO, Alpha Asset Management (Korea), and other global FinTech investors participated in the round as well.

The startup's platform has "institutional-grade solutions for the new era of private investing and alternative assets," per the release. Serving the alternative assets industry, Brassica's tools can easily integrate with any operating system to provide proprietary technology and unique regulatory licenses. The technology aims to modernize key banking and investing infrastructure to help enterprises safely grow their business and protect their customer assets. Continue reading.

Houston immunotherapy company 7 Hills Pharma to use $13.5M CPRIT grant to further develop cancer treatments

7 Hills Pharma, an innovative immunotherapy company, was awarded a $13.5 million grant from the Cancer Prevention and Research Institute of Texas. Photo via Getty Images

Between Bangalore and Chennai in the Indian state of Andhra Pradesh, you’ll find the town of Tirupati. It’s home to seven peaks that host a Hindu temple complex devoted to a form of Vishnu, Venkateshvara. It is also the region from which Upendra Marathi originally hails. It’s where his father, and many other family members, attended medical school.

“My father’s first job was to take care of the pilgrims,” recalls Marathi.

It's only natural that his groundbreaking Houston company would be named 7 Hills Pharma.

“That sort of selflessness and giving back, I wanted to embody it in the name of the company,” Marathi says.

Now, 7 Hills Pharma is announcing that last month, it was awarded a $13.5 million grant from the Cancer Prevention and Research Institute of Texas (CPRIT). That’s on top of more than $13 million in NIH grants, making the company the second largest recipient of SBIR/STTR grants in Texas. Continue reading.

Seattle biotech co. OncoResponse to move to Houston thanks to $13.3M grant from CPRIT

OncoResponse in partnership with MD Anderson Cancer Center received a portion of $73 million the Cancer Prevention and Research Institute of Texas has doled out this spring. Photo via oncoresponse.com

A biotech company has landed a more than $13 million grant from the Cancer Prevention and Research Institute of Texas.

The nearly $13.3 million grant given to OncoResponse — which is relocating from Seattle to Houston, according to CPRIT's news release — will help the company develop fully human monoclonal antibodies for treatment of cancer that otherwise would not respond to immunotherapy. OncoResponse already has a partnership with MD Anderson Cancer Center, which is one of the company’s investors.

“We are thrilled to receive this recognition from CPRIT in supporting the potential of our immunotherapy candidate OR502. We greatly appreciate the additional support from our investors as we continue to make significant progress with our drug development efforts advancing immunotherapies derived from clues of Elite Responders,” says Clifford Stocks, CEO of OncoResponse, in a news release. Continue reading.

Houston biotech startup CellChorus secures $2.3M SBIR grant

CellChorus, a biotech startup operating out of the University of Houston Technology Bridge, has secured fresh funding. Photo via Getty Images

They say it’s all in the timing. For CellChorus, it’s all in the TIMING. That’s Time-lapse Imaging Microscopy In Nanowell Grids. TIMING is a visual AI program that evaluates cell activation, killing and movement, which allows scientists to better understand how cells function.

The technology is important to the development of novel therapies in the realms of oncology, infectious diseases, and countless other disorders and diseases. By allowing scientists to observe those maladies at their roots, it will enable them to create, and ultimately deliver new medications and other therapies faster, at lower cost, and with a higher success rate.

CellChorus is a spinoff of the Single Cell Lab at the University of Houston. Part of UH’s Technology Bridge, CEO Daniel Meyer connected with co-founder and leader of Single Cell Lab, Navin Varadarajan, through co-founder Laurence Cooper.

“The company had been established, but there were limited operations,” recalls Meyer during a phone call with InnovationMap.

That was the fall of 2020. Now, the team has just announced a $2.3 million SBIR (Small Business Innovation Research) Fast-Track grant from the National Institute of General Medical Sciences. Continue reading.

Health tech startup Rosarium Health raises $1.7M, plans Houston HQ

Rosarium Health, a member of the Texas Medical Center's 2023 Accelerator for HealthTech cohort, has raised pre-seed funding. Photo courtesy of TMC

A health tech startup that just collected $1.7 million in pre-seed funding aims to eventually plant its headquarters in Houston.

The startup, Rosarium Health, currently has no headquarters; its 10 employees work remotely from various locations. However, co-founder and CEO Cameron Carter — who lives in the Denver area — says the company is eyeing a future headquarters in Houston.

“We believe Houston is the best city to launch a health care startup, given the Texas Medical Center, diverse talent across health and technology, affordable living, and a city with supportive and progressive communities,” Carter tells InnovationMap. “We feel Houston offers meaningful attributes that can enable a high-growth startup to succeed and for its employees to feel safe.” Continue reading.

Houston-based workforce solutions platform Innovapptive closes series B round

A Houston SaaS company has announced a fresh round of funding. Photo via Innovapptive.com

A Houston software-as-a-service company has closed an undisclosed amount of funding in a series B round.

Innovapptive Inc., which has its global headquarters in Greenway Plaza, has announced it's closed a series B investment round led by Austin-based Vista Equity Partners with support from existing investor Tiger Global Management. The fresh funding will be deployed to "accelerate product innovation and reach new regional markets," according to the company.

“We look forward to this next phase of growth as we continue to define the emerging connected worker software category,” says Sundeep Ravande, founder and CEO of Innovapptive, in the news release. “Vista has significant experience scaling enterprise software businesses and emerging technologies." Continue reading.

Venus Aerospace, a Houston startup with hypersonic engine tech, adds new investor

This Houston company is one step closer to enabling high-speed global travel. Photo courtesy of Venus Aerospace

A Houston-based company that's developing an engine that'll enable one-hour global transportation has announced its latest investor.

Venus Aerospace released the news that Silicon Valley venture capital firm, Airbus Ventures, has joined its team of investors. The supersonic combustion engine technology — more akin to a rocket's engine than an airplane's — is revolutionary because allows for travel at a higher elevation. Jet engines rely on air outside of the aircraft to combust, and rocket engines work with a system that supplies air internally.

“Venus has developed the world’s first liquid-propellant rotating detonation rocket engine (RDRE) with a double-digit percentage increase in efficiency over standard regular engines, making the hypersonic economy possible,” says Sassie Duggleby, CEO and co-founder of Venus, in a news release. “We’re delighted to bring Airbus Ventures into the Venus family and look forward to growing our collaboration as we harness the future of hypersonic flight.” Continue reading.

This week's roundup of Houston innovators includes Sarah "Sassie" Duggleby of Venus Aerospace, Youngro Lee of Brassica, and Le Dam of myAvos. Photos courtesy

3 Houston innovators to know this week

WHO'S WHO

Editor's note: In this week's roundup of Houston innovators to know, I'm introducing you to three local innovators across industries — from rocket science to fintech — recently making headlines in Houston innovation.

Sarah "Sassie" Duggleby, CEO and co-founder of Venus Aerospace

Sarah "Sassie" Duggleby of Venus Aerospace joins the Houston Innovators Podcast this week. Photo courtesy of Venus

Sarah "Sassie" Duggleby and her husband were living in Japan and considering a trip back to Texas and wishing there was a faster option than a full day of international travel — with their kids, no less. That's when Andrew Duggleby told Sassie that there actually might be an engine that could do that.

Flash forward a few years, and the husband-wife team has built a company around that idea. Venus Aerospace, originally founded in California, relocated to Houston in 2021 to establish their company in an ecosystem with the tools to advance their tech — and give their employees a good work-life balance, Sassie Duggleby explains on the Houston Innovators Podcast.

"We knew we had to find a location where we could test our engine and still be home for dinner," she says on the show. "Our company vision is 'home for dinner.' We want to fly you across the globe and have you home for dinner. And, if you work for us, we want you home for dinner." Read more.

Youngro Lee has announced funding for his latest fintech endeavor. Photo courtesy

Youngro Lee is no stranger to shaking up the finance world with a new tech-based way of doing business. One of the founders of NextSeed, Lee's newest mission is providing "investment infrastructure as a service" with his company, Brassica, which just raised $8 million in seed funding.

“The future of finance will depend on the ability of trustworthy institutions to provide secure and seamless transitions between traditional financial services and web3 innovations while complying with strict regulations and still providing great customer experience,” says Lee in the news release.

Houston-based Mercury Fund led the round with several other investors participating. Read more.

Le Dam, CEO and founder of OptiChroniX

Le Dam moved from California to Houston to build her company. Photo via LinkedIn

After years on the West Coast, Le Dam has returned to her adopted hometown of Houston — just in time to launch a new app dedicated to providing health resources and information to its users.

“I always knew that I wanted to build my business in Houston,” Dam says, mentioning the assets of the world’s largest medical center, a thriving startup community, and diverse population for whom she wants to build her technology.

myAvos pairs with a user’s smart watch and harnesses their health information such as physical activity and hours slept. The user can also input additional information such as blood test results and meals eaten. The app analyzes the information provided and assesses the user’s risk for chronic illness later in life. Read more.

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These 5 trailblazing Houston startups are leading the energy transition

meet the finalists

Houston is home to a growing number of startups reshaping what it means to be called the "Energy Capital of the World."

As part of the 2026 Houston Innovation Awards, our Energy Transition Business category honors those innovative startups that are providing solutions within renewables, climatetech, clean energy, alternative materials, circular economy and more.

Five clean energy startups have been named finalists for the 2026 award. The finalists, selected by our esteemed panel of judges, range from a lower-emission steel producer to a diagnostics platform developer working to support batteries used in data centers.

Read more about these innovative businesses, their initiatives, and their inspirational founders below. The 2026 winners will be announced on InnovationMap.com in mid-November.

Capwell Services

Methane capture company Capwell Services works to eliminate vented oil and gas emissions economically for operators. According to the company, methane emissions are vented from most oil and gas facilities due to safety protocols, and operators are not able to capture the gas cost-effectively, leading operators to emit more than 14 million metric tons of methane per year in the U.S. and Canada. Founded in 2022, Capwell specializes in low and intermittent flow vents for methane capture.

The company began as a University of Pennsylvania senior design project led by CEO Andrew Lane. It has since participated in programs with Greentown Labs, the Rice Clean Energy Accelerator and the Creative Destruction Lab Energy Cohort at Texas A&M University. The company moved to Houston in 2023 and raised a pre-seed round. It deployed two commercial units this year, according to its application.

FlowCellutions

Energytech startup FlowCellutions is developing a chemistry-agnostic diagnostics platform for flow and metal-air batteries supporting data centers and critical infrastructure. The platform is designed to help reduce operating costs, prevent failures and costly downtime, and extend battery lifetime from approximately seven years to more than 30 years. It has deployed four paid pilots and plans to take insights from the programs to develop its next-gen sensor platform technology.

CEO Becca Segel founded the company in 2022. It is a member of Greentown Labs, and Segel was a 2025 Activate Fellow. The company has raised over $2 million in non-dilutive funding and received a $1.5 million NSF SBIR Fast-Track award earlier this year.

Hertha Metals

Hertha Metals produces lower-cost, lower-emission steel and high-purity iron. The company has developed a single-step process that uses natural gas as a direct reductant instead of metallurgical coal, which cuts production costs by more than 25 percent and emissions by up to 50 percent, according to the company. The same process produces high-purity iron needed for high-purity steels and rare earth magnets. The company says it aims to "re-industrialize America’s production of critical materials."

Hertha Metals was founded by CEO Laureen Meroueh in 2022 and emerged from stealth last year with more than $17 million in venture capital funding. The company closed a $133.65 million Series A this month and also broke ground on its $100M high-purity iron factory known as Chalyx in Conroe.

Mars Materials

Clean chemical manufacturing business Mars Materials is working to convert captured carbon into resources, such as carbon fiber and wastewater treatment chemicals. The company develops and produces its drop-in chemical products in Houston and uses an in-licensed process for the National Renewable Energy Lab to produce acrylonitrile, which is used to produce plastics, synthetic fibers, and rubbers.

Founded in 2019 by CEO Aaron Fitzgerald, CTO Kristian Gubsch, and vice president of operations Trey Sheridan, the company has secured over $7.2M in financing and is backed by Bill Gates’ Breakthrough Energy, Shell, Black & Veatch, and other organizations. It won in the Minority-founded Business Category in last year's Houston Innovation Awards.

Solidec

Chemical manufacturing company Solidec has developed autonomous generators that extract molecules from water and air and convert them into pure chemicals and fuels that are free of carbon emissions on-site, eliminating the need for transport, storage, and permitting. The company was founded around innovations developed by Rice University associate professor Haotian Wang.

The company was selected for the Chevron Technology Ventures’ Catalyst Program, Greentown Labs, NSF I-Corps and was part of the first cohort of the Activate Houston program. It won first place at the 2024 startup pitch competition at CERAWeek. Solidec was founded in 2023 by Wang, who serves as an advisor, CEO Ryan DuChanois, and CTO Yang Xia. It closed a $2.5 million seed round in 2025.

Houston businessman and philanthropist to receive legendary Texas award

Making History

The Texas State History Museum Foundation (TSHMF) has set the date for its 23rd annual Texas Independence Day Dinner and unveiled the 2027 recipients of its prestigious History-Making Texan Award, which includes a prominent Houston businessman.

Since 2005, the organization has honored "living Texas legends whose contributions to the state and the nation have been truly historic and exceptional in scope and nature." Past galas have recognized prominent Texas figures such as former presidents George H.W. and George W. Bush and former first ladies Barbara and Laura Bush, as well as H-E-B chairman Charles Butt, among others.

The two 2027 History-Making Texan Award recipients are Texas Historical Commission chairman, businessman, and philanthropist John L. Nau, III, and trailblazing Texas actor, director, producer, and writer Taylor Sheridan. The 2027 gala will be held at the Bullock Texas State History Museum in Austin on March 2, Texas Independence Day.

"Our honorees are national leaders whose accomplishments have elevated Texas’ distinctive place on the national and international stage," Debbie Raynor, dinner chair and TSHMF Trustee, said in a statement. "John L. Nau, III and Taylor Sheridan have each, in very different ways, helped tell the Texas story — one through the preservation of our history and treasured places, the other through the power of storytelling that has brought Texas and the American West to audiences around the world.

"Nau is the former chairman and CEO of Silver Eagle Beverages, one of the largest Anheuser-Busch distributors in the U.S. He has served as chairman of the Texas Historical Commission since 2015. Raynor said Nau's "commitment to preservation" extends further than his protection of Texas historic sites "to the stewardship and conservation of the land itself, including his bay area lodge in South Texas and his ranch in West Texas.

"[Nau's] leadership and lifelong dedication to history have earned him national recognition, but perhaps his greatest legacy is his determination to ensure that the stories and places that shaped Texas endure for generations to come," Raynor said.Quadruple-threat filmmaker Sheridan is most widely recognized for his award-winning neo-Western TV series Yellowstone and its associated spin-offs 1883, 1923, Marshals, and Dutton Ranch. Raynor hailed Sheridan for his success in bringing a "remarkable new dimension to the way the world sees Texas and the American West."

"As a creator, writer, director, and executive producer of some of television’s most successful series, he has captured the imagination of audiences across the globe while bringing the people, landscapes, traditions and enduring spirit of the West into millions of homes," she said. "And he does more than tell the Texas story — he lives it, as a native Texan, accomplished horseman and steward of two legendary Texas ranches."

A release estimates about 450 "business, political, and community leaders" attend the Texas Independence Day Dinner each year, and proceeds will benefit the Bullock Museum's educational programs and special projects.

The 2027 Texas Independence Day Dinner will take place March 2, 2027, at the Bullock Museum in Austin. A VIP reception will start at 6:30 pm, followed by a 7 pm reception, and 7:30 dinner and program.

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This article first appeared on CultureMap.com.

Houston bio-based materials startup breaks into footwear

cleaner shoes

A more sustainable shoe can’t be built on a single material swap. From the hard plastics hidden inside a heel to the material covering a sneaker’s upper, footwear is a collection of components—and each presents a different challenge for companies trying to move away from conventional, petroleum-based materials.

Houston-based Rheom Materials wants to change that equation. The biomaterials company has launched a sustainable footwear platform featuring two of its bio-based alternatives: Benree, a biodegradable plastic designed for hard internal components, and ShoraiDura, a durable leather alternative for footwear uppers.

“A shoe is not one material; it is multiple parts working together as a system. Substituting a single material has never moved the needle,” Rheom founder and CEO Zimri Hinshaw said in a news release. “Rheom wants to make it easier for brands to make a positive impact. By providing an assortment of bio-based materials, brands can change the system, not just a swatch of it.”

Benree is Rheom’s alternative to conventional hard plastics used in footwear construction. The company says it is a 100 percent USDA-certified bio-based, biodegradable material with performance comparable to acrylonitrile butadiene styrene (ABS), a widely used engineering plastic.

The material has passed SATRA testing for high-heel applications with Bared Footwear, an Australian footwear brand.

“At Bared, we're constantly on a journey to remove plastic from our shoes. At the same time, our brand won't compromise on quality for the end customer,” Millie Richards, Bared’s head of sustainability, added in the release. “From samples and testing, Rheom has proven to be solving both of those problems for us. We look forward to seeing how they develop as a company and would love to use them in our shoes.”

Rheom says it is also exploring Benree for additional internal components, including toe puffs and heel counters.

Rheom's Benree material was used for a high-heel prototype. Photo courtesy Rheom Materials

The company’s ShoraiDura material addresses another major part of shoe construction: the upper, which must withstand repeated flexing, friction and wear while maintaining its appearance.

Containing about 80 percent bio-based content, ShoraiDura is engineered as a durable leather alternative for footwear. Rheom says the material’s molecular structure is designed to deliver the strength and durability required for demanding applications.

To demonstrate how the material could be used in finished products, Rheom worked with a Los Angeles-based footwear manufacturer to create two prototypes: an athletic sneaker and a textured skater shoe, both featuring ShoraiDura uppers.

The two offerings reflect the company’s broader strategy. Rather than asking brands to evaluate a single material in isolation, Rheom is positioning its platform as a way to explore alternatives across different parts of footwear construction.

The next step is broader industry adoption. Benree’s testing with Bared Footwear and ShoraiDura’s footwear prototypes offer early examples of how the materials could be applied, while commercial use will depend on manufacturers’ evaluations and product-development decisions.

Rheom Materials is a Houston-based biomaterials company developing bio-based alternatives to petrochemical plastics. Its product portfolio includes Shorai, a leather alternative, and Benree, a hard plastic alternative.

The company debuted Shorai at the Houston Livestock Show and Rodeo in 2025 and showed a bio-based "leather" collection in Milan earlier this year. Read more here.