Here's what Houston startups scored investment in Q3 of 2023. Photo via Getty Images

Here's what Houston startups snagged fresh funding last quarter

Q3 in review

With Houston's business and innovation community firmly in its final leg of 2023, it's time to look back on funding from the previous quarter.

While last quarter revealed a decline in VC funding in line with the rest of the country, per PitchBook data, around 60 Houston-area companies secured venture funding in the third quarter. These deals spanned across angel and seed rounds all the way up to a monolith of a series C and unicorn status achievement.

According to InnovationMap reporting, 5 Houston-based companies announced VC funding between July and September. Here's a roundup of these second quarter deals — click on each story to read more.

Axiom's $350M series C round

Axiom Space CEO Michael Suffredini (right) has announced the company's series C round with support from Aljazira Capital, led by CEO Naif AlMesned. Photo courtesy of Axiom Space

Houston has another unicorn — a company valued at $1 billion or more — thanks to a recent round of funding.

Axiom Space released the news this week that it's closed its series C round of funding to the tune of $350 million. While the company didn't release its valuation, it confirmed to Bloomberg that it's over the $1 billion threshold. Axiom reports that, according to available data, it's now raised the second-most funding of any private space company in 2023 behind SpaceX.

Saudi Arabia-based Aljazira Capital and South Korea-based Boryung Co. led the round. To date, Axiom has raised over $505 million with $2.2 billion in customer contracts, according to the company.

“We are honored to team with investors like Aljazira Capital, Boryung and others, who are committed to realizing the Axiom Space vision,” Axiom Space CEO and president Michael Suffredini says in a news release. “Together, we are working to serve innovators in medicine, materials science, and on-orbit infrastructure who represent billions of dollars in demand over the coming decade. Read more.

VenoStent's $16M series A round

A Houston startup based out of the TMC Innovation Factory has announced funding and upcoming trials. Photo courtesy of TMC

Fueled by fresh funding in the bank, a medical device startup has announced upcoming trials.

VenoStent, Inc., a company developing an innovative tool to improve outcomes for hemodialysis patients, has closed $16 million in a series A round of financing. Two Charleston, South Carolina-based firms — Good Growth Capital and IAG Capital Partners — led the round.

The company also announced it received Investigational Device Exemption from the FDA for its United States clinical trial, SAVE-FistulaS.

“Our mission at VenoStent is to improve the quality and length of life of dialysis patients. On the heels of our very promising results in several preclinical studies and a 20-patient feasibility study that led to our Breakthrough Designation last year, this recent IDE approval is perhaps our biggest milestone to date," Tim Boire, CEO of VenoStent, says in a news release. "We now enter an exciting new epoch in our company’s development that we believe will ultimately result in FDA Approval and vastly improve the quality and length of life for patients." Read more.

CardioOne's $8 million seed round

CardioOne has fresh funding and new partners, resulting in a five-state expansion. Photo via Getty Images

With fresh funding, a Houston-based health tech platform that's less than a year old has grown its United States footprint.

CardioOne, which has created a cardiology care delivery enablement platform that serves independent cardiologists, has closed an $8 million seed round of funding and secured three new partnerships. Axios and Crunchbase report that the round has closed, and CardioOne confirms the funding and new partnerships in a press release.

The company has three new partnerships with independent cardiology clinics in New Jersey, Florida, and Pennsylvania, Cardiac Associates of New Jersey, Twin Hearts LLC, and Corrieius Cardiology. The trio joins existing partner practices in Texas and Maryland. Read more.

Industrial Daa Labs' $1.5M seed round

Industrial Data Labs announced the close of its $1.5 million seed round of funding. Photo via Getty Images

A Houston startup that's on a mission to transform and expedite data processing for its industrial clients has raised seed funding.

Industrial Data Labs announced this week that it's closed a $1.5 million seed round of funding. The company has created an applied artificial intelligence technology for the pipe, valve, fitting, and flange, or PVF, industry's inside sales team. The terms of the seed round were not disclosed.

"Our groundbreaking AI-Powered Inside Sales Copilot is transforming the way inside sales teams operate in the PVF industry," Marty Dytrych, co-founder and CEO of Industrial Data Labs, says in a news release. "By embedding our solution into existing BOM and MRO workflows, we empower teams to achieve unmatched efficiency, accuracy, and sales performance.” Read more.

Nanotech's oversubscribed funding round

NanoTech closed an oversubscribed round of funding, the company announced this week. Photo courtesy of NanoTech

A Houston startup that has developed an innovative coating material that can reduce energy consumption has raised fresh funding for its cross-country expansion.

NanoTech Inc. announced its latest funding news — an oversubscribed funding round that brings onboard a handful of new investors. The details of the round were not disclosed, but NanoTech did release that the round included participation from three institutional investors, two corporate-strategic investors, and seven family offices. These entities join initial investor, Austin-based Ecliptic Capital.

NanoTech's flagship product is a waterproof thermal coating, called the Nano Shield Cool Roof Coat, which began rolling out across the country this year. Not only does the product reduce energy costs for the building owner, but it reduces emissions as well. Read more.

These eight Houston companies raised over $140 million in venture capital investment in Q2 of 2022. Photo via Getty Images

Here's what Houston startups snagged fresh funding last quarter

following the money

Houston startups are keeping pace when it comes to venture capital raised this year. In this roundup of funding closed in the second quarter, Houston businesses across sectors and industries close significant rounds from seed to series B.

Eight startups raised over $140 million last quarter, according to InnovationMap reporting, which is right on par with Q1's numbers. In chronological order, here's what companies snagged fresh funding recently.

Houston aerospace startup secures $20M series A investment round

Houston-based Venus Aerospace has raised $20 million — and is one step closer to providing one-hour global travel. Photo courtesy of Venus Aerospace

A year after raising $3 million in seed funding, a Space City startup has closed its high-flying series A round to the tune of $20 million.

Venus Aerospace, which is working on a zero-carbon emission spaceplane that will enable one-hour global travel, closed its series A funding round led by Wyoming-based Prime Movers Lab. The firm has a few dozen breakthrough scientific companies in its portfolio, including another Houston-based, space-focused startup, Axiom Space. The round also saw participation from previous investors: Draper Associates, Boost, Saturn 5, Seraph Group, Cantos, The Helm & Tamarack Global.

Venus Aerospace was founded by Sarah "Sassie" and Andrew Duggleby, who serve as the company's CEO and CTO, respectively, in 2020 in California. The Texas A&M University alumni later moved the business into its current facilities in the Houston Spaceport. Click here to continue reading.

Fast-growing energy fintech startup raises $50M series B

The series B capital will allow the company to enhance its core product, while also adding on other workflows that focus on emissions and renewable energy. Image via combocurve.com

Houston-based ComboCurve announced today that it has raised $50 million through a series B funding round led by Dragoneer Investment Group and Bessemer Venture Partners.

Founded in 2017, the company is a cloud-based energy analytics and operating platform that uses sophisticated software to forecast and report on a company's energy assets, including renewables.

The series B capital will allow the company to enhance its core product, while also adding on other workflows that focus on emissions and renewable energy. Click here to continue reading.

Houston medical device startup closes $6M series A

This innovative medical device company has closed $6 million for further product development and clinical trials. Image via Getty Images

A Houston-based medical device company born out of the Texas Medical Center has closed its series A round of funding.

Ictero Medical's oversubscribed $6 million round was led by MedTex Ventures, S3 Ventures, and an undisclosed strategic investor, according to a news release. The company's novel cryoablation system was designed to treat high-risk gallstone disease patients and provide a less invasive and lower risk alternative to gallbladder removal surgery — something over 1 million Americans undergo annually.

“Our technology provides an immediate solution for critically ill patients who currently have no good treatment options, and also has the potential to benefit healthier patients who want to avoid surgery,” says Ictero Co-Founder and CEO Matthew Nojoomi in the release. Click here to continue reading.

Houston entrepreneur adds $1M to seed round

Houston-based Upgrade has raised additional seed funding. Photo via LinkedIn

Houston-based Upgrade Boutique — which uses technology to connect women with high-quality wigs and hair extensions — extended its seed round by $1 million, Fast Company reported. The round's initial seed leaders included Houston-based venture capital firms Artemis Fund and Mercury Fund, as well as Logitech president and CEO Bracken P. Darrell and ANIM.

“This [investment] will enable us to scale even faster and continue to invest in tools and resources that will improve the consumer experience, and help stylists operate more efficiently,” Winters tells Fast Company. “Based on feedback from the stylists on our platform, we see this as a natural development in the company’s evolution.” Click here to continue reading.

Houston startup raises $30M series B, plans to expand its offerings to customers

Growing Houston-based WizeHire tripled its headcount last year and plans to grow even more as it scales up. Photo courtesy of WizeHire

A Houston software company has closed its latest funding round to the tune of $30 million.

WizeHire, a tech-enabled hiring solution for small businesses, announced the closing of its series B round, bringing its total funding to $37.5 million and its valuation to $250 million, according to the news release. The round was led by Tiger Global with participation from prior Houston-based investors Amplo and Mercury.

The pandemic has greatly impacted businesses ability to hire new employees. Founded in 2014, WizeHire launched a free version of its optimized hiring solution at the height of COVID-19. The company also helped small businesses find and apply for refundable tax credits and Payment Protection Program loans to keep their doors open.

“The pandemic was an incredibly tough time for Main Street, and we were right there with them," says Sid Upadhyay, CEO of WizeHire, in the release. "We’re constantly amazed by the depth of our clients’ trust in us and in response, have stepped up to serve them as a trusted advisor in their business growth. We plan to build a marketplace for small businesses to have access to the resources they need to succeed.” Click here to continue reading.

Houston smart bus platform raises $26M to expand operations in Mexico and beyond

This Houston company has rolled out its expansion plans following a $20 million series A. Photo via ridekolors.com

A Houston-based company that's using tech and data to provide its intercity bus network has announced $26 million in funding.

Kolorshas announced the close of its $20 million series A financing round led by UP.Partners with participation from Maniv Mobility, Toyota Ventures, K5 Global, Mazapil — plus contribution from existing investors Tuesday Capital, Garret Camp's Expa, Chris Sacca's Lowercase, Moving Capital, MGV, Brainstorm Ventures, Bling Capital and Amplifica. The round, which brings the company's total investment raised to $26 million, will allow Kolors to grow in Mexico, expand into new Latin American markets, and enable cross-border US travel.

The company has created a "smart-bus-platform," which is defined as being a combination of airline and ridesharing style technology. The service includes attendants superpowered by technology, according to a news release.

"Kolors is redefining the experience of intercity travel. We are thrilled to see Kolors advancing in Mexico and bringing its phenomenal service to other parts of Latin America in the coming months this year," says Ally Warson, partner of UP.Partners. "Kolors is thinking about the next phase for intercity bus travel and intends to design an ecosystem that prioritizes the passenger while providing more profitable and climate-friendly outcomes for bus operators." Click here to continue reading.

Tech startup closes seed round at over $3M, plans to grow Houston team

This tech company wants to replace passwords for good. Photo courtesy of Allthenticate

A California-founded company that recently put down roots in Houston has announced the closing of its seed round of funding.

Allthenticate, a tech startup that enables unified authentication, announced over $3 million raised in its seed funding round led by Austin-based Silverton Partners with participation from California-based Amplify and Denver-based Ping Identity. The total raised in the round is $3,133,337, which, as the press release explains, translates to “elite” in hacker speak.

Allthenticate’s technology and services allow users to utilize smartphone devices to unlock and log in to everything — from doors to computers and servers. The company's mission is to provide safe, easy-to-use security infrastructure for everyday use and to target small- to medium-sized businesses to deploy the technology across their workforces. Click here to continue reading.

Houston SaaS startup raises $10M to keep up with customer growth

Houston-based Liongard has fresh funding to work with. Photo via Getty Images

A Houston software company has announced its latest funding.

Liongard, an IT software provider, has raised an additional $10 million led by Updata Partners with contribution from TDF Ventures — both existing investors in the company. The funding, according to a news release, will go toward providing the best customer service for Liongard's growing customer base.

The technology is providing managed service providers, or MSPs, improved visibility across the IT stack and an optimized user experience.

“Since working with our first MSP partners, we’ve seen time and again the power of visibility into IT data, reducing the time they spend researching customer issues and allowing them to respond faster than their peers,” says Joe Alapat, CEO and co-founder of Liongard, in the release. “This investment enables us to continue to achieve our vision of delivering visibility into each element of the IT stack.” Click here to continue reading.

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3 Houston innovators who made headlines in May 2025

Innovators to Know

Editor's note: Houston innovators are making waves this month with revolutionary VC funding, big steps towards humanoid robotics, and software that is impacting the agriculture sector. Here are three Houston innovators to know right now.

Zach Ellis, founder and partner of South Loop Ventures

Zach Ellis. Photo via LinkedIn

Zach Ellis Jr., founder and general partner of South Loop Ventures, says the firm wants to address the "billion-dollar blind spot" of inequitable distribution of venture capital to underrepresented founders of color. The Houston-based firm recently closed its debut fund for more than $21 million. Learn more.

Ty Audronis, CEO and founder of Tempest Droneworx

Ty Audronis, CEO and founder of Tempest Droneworx

Ty Audronis, center. Photo via LinkedIn.

Ty Audronis and his company, Tempest Droneworx, made a splash at SXSW Interactive 2025, winning the Best Speed Pitch award at the annual festival. The company is known for it flagship product, Harbinger, a software solution that agnostically gathers data at virtually any scale and presents that data in easy-to-understand visualizations using a video game engine. Audronis says his company won based on its merits and the impact it’s making and will make on the world, beginning with agriculture. Learn more.

Nicolaus Radford, CEO of Persona AI

Nicolaus Radford, founder and CEO of Nauticus RoboticsNicolaus Radford. Image via LinkedIn

Houston-based Persona AI and CEO Nicolaus Radford continue to make steps toward deploying a rugged humanoid robot, and with that comes the expansion of its operations at Houston's Ion. Radford and company will establish a state-of-the-art development center in the prominent corner suite on the first floor of the building, with the expansion slated to begin in June. “We chose the Ion because it’s more than just a building — it’s a thriving innovation ecosystem,” Radford says. Learn more.

Houston university to launch artificial intelligence major, one of first in nation

BS in AI

Rice University announced this month that it plans to introduce a Bachelor of Science in AI in the fall 2025 semester.

The new degree program will be part of the university's department of computer science in the George R. Brown School of Engineering and Computing and is one of only a few like it in the country. It aims to focus on "responsible and interdisciplinary approaches to AI," according to a news release from the university.

“We are in a moment of rapid transformation driven by AI, and Rice is committed to preparing students not just to participate in that future but to shape it responsibly,” Amy Dittmar, the Howard R. Hughes Provost and executive vice president for academic affairs, said in the release. “This new major builds on our strengths in computing and education and is a vital part of our broader vision to lead in ethical AI and deliver real-world solutions across health, sustainability and resilient communities.”

John Greiner, an assistant teaching professor of computer science in Rice's online Master of Computer Science program, will serve as the new program's director. Vicente Ordóñez-Román, an associate professor of computer science, was also instrumental in developing and approving the new major.

Until now, Rice students could study AI through elective courses and an advanced degree. The new bachelor's degree program opens up deeper learning opportunities to undergrads by blending traditional engineering and math requirements with other courses on ethics and philosophy as they relate to AI.

“With the major, we’re really setting out a curriculum that makes sense as a whole,” Greiner said in the release. “We are not simply taking a collection of courses that have been created already and putting a new wrapper around them. We’re actually creating a brand new curriculum. Most of the required courses are brand new courses designed for this major.”

Students in the program will also benefit from resources through Rice’s growing AI ecosystem, like the Ken Kennedy Institute, which focuses on AI solutions and ethical AI. The university also opened its new AI-focused "innovation factory," Rice Nexus, earlier this year.

“We have been building expertise in artificial intelligence,” Ordóñez-Román added in the release. “There are people working here on natural language processing, information retrieval systems for machine learning, more theoretical machine learning, quantum machine learning. We have a lot of expertise in these areas, and I think we’re trying to leverage that strength we’re building.”