Here's how a visiting venture capitalist explores Houston's startup ecosystem for the first time

a day in the life

Pat Matthews of Active Capital visited Houston with a collaboration with the HX Venture Fund. Photo courtesy of Active Capital

When Houston Exponential established the HX Venture Fund, the goal was to bring out-of-town capital and investors into the city of Houston. The fund of funds invests in a portfolio of venture capital funds with the hope that those funds find a way back into the Houston startup ecosystem.

After a little over a year, HXVF has invested in five funds: Boston-based .406 Ventures, Austin-based Next Coast Ventures, Boston-based OpenView Venture Partners, Washington D.C.-based Updata Partners, and Austin-based LiveOak Venture Partners.

The fund of funds is also regularly hosting those five funds — as well as a mix of potential portfolio fund members — in Houston for what the HXVF calls "immersion days" where the venture capitalists can meet local startups, innovation leaders, and even fellow investors that they could eventually co-invest with.

"The goals of these days are to have venture capitalists travel to Houston, meet with our entrepreneurs (and the startup development organizations like Station, Cannon and WeWork that support them), and provide both capital and expertise in company building to the tech companies," says Sandy Guitar Wallis, managing partner at HXVF. "The venture capitalists also meet with HX Venture Fund corporate LPs, who can be customers or acquirers of their portfolio companies."

Just this month alone, HXVF is hosting four funds — two from their portfolio and two that they haven't yet invested in. San Antonio-based Active Capital, which has raised a $21 million fund, is among the visiting VCs this month. The fund's founder, Pat Matthews, an entrepreneur turned venture capitalist, has shared his busiest day — February 5 — as well as his perspective on Houston innovation with InnovationMap.

A morning too busy for breakfast

After waking up at the Hotel Derek, Matthews starts his second day in Houston by taking a Lyft to the Greater Houston Partnership for what he believes to be a breakfast meeting with Wallis and Guillermo Borda of HXVF, but the group has too much to discuss that a meal falls by the wayside.

Before this trip, Matthews hasn't visited Houston in a professional capacity. While Active Capital is based just down I10 in San Antonio, the firm's investments are split almost in half by deals done in Texas versus the rest of the world. Active Capital focuses on B2B SaaS investments — usually leading — in seed or series A rounds.

Matthews has called Texas home for around a decade. He founded an email marketing startup in Virginia, which was acquired by San Antonio-based Rackspace. He relocated to join Rackspace and worked on growing the organization for six years before creating Active Capital.

Following the meeting — still unfed, Matthews meets up with Serafina Lalany from Houston Exponential to carpool to The Cannon on the west side of town.

Loading up on carbs and fireside chats

Matthews forgoes his usual carb aversion to eat slices of Domino's pizza at The Cannon before beginning his first of three fireside chats with Houston innovators. Patrick Schneidau, CEO of Truss, leads the conversation at The Cannon. (Schneidau is a board member of InnovationMap's.) After the chat, Matthews has a meeting with a startup before heading back into town.

With one fireside chat down, Matthews heads into his second one of the day at Station Houston with Joe Alapat, founder of Liongard. Matthews observes that each of the entrepreneurs who interviewed him had great questions, and seemed to be far along with their companies. Meanwhile, any of the people he met before or after the chat seemed to be at a much earlier stage in their startup journey.

The last fireside chat was hosted by Rakesh Agrawal of Snapstream at WeWork's Jones Building location. Matthews and Agrawal attempted to set up a Facebook livestream for the conversation, but an issue with the technology wouldn't allow for the stream.

An evening of good food and great mentorship

With meetings and fireside chats done, Matthews heads straight to a dinner with Blair Garrou, founder and managing director of Mercury Fund. The two venture capitalists dine at Eunice and split several appetizers and a bottle of wine while discussing their own recent investments and interests. Matthews, who met Garrou in 2014, thinks of him as a great mentor in venture capital.

Matthews headed back to the hotel after dinner and crashes hard after the long day. He would head back to San Antonio on a Vonlane bus — he gets a lot of work done on his trips — the next day.

What's next for Active Capital and Houston?

Matthews says he left Houston with an overall positive opinion of the city, and says it's similar to other Texas cities, aside from Austin, in its startup presence and capacity. While he assumed he'd meet energy and space startups, he realized Houston had a lot more going on than that.

"It definitely seemed like there was a lot of passion and a lot of hustle," Matthews says. "And it seems like the city is really working to support and cultivate that and keep it in Houston. I was inspired."

Throughout the visit, Matthews handed out his business card and some conversations have developed from those connections, he says. Another representative from Active Capital who is focused on sourcing deals with startups will visit next, and Matthews says he also thinks that he'll return to Houston to continue conversations he's been having, including some with other investors.

"I could definitely see doing deals in Houston," Matthews tells InnovationMap.

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Rice University lands $18M to revolutionize lymphatic disease detection

fresh funding

An arm of the U.S. Department of Health and Human Services has awarded $18 million to scientists at Rice University for research that has the potential to revolutionize how lymphatic diseases are detected and help increase survivability.

The lymphatic system is the network of vessels all over the body that help eliminate waste, absorb fat and maintain fluid balance. Diseases in this system are often difficult to detect early due to the small size of the vessels and the invasiveness of biopsy testing. Though survival rates of lymph disease have skyrocketed in the United States over the last five years, it still claims around 200,000 people in the country annually.

Early detection of complex lymphatic anomalies (CLAs) and lymphedema is essential in increasing successful treatment rates. That’s where Rice University’s SynthX Center, directed by Han Xiao and Lei Li, an assistant professor of electrical and computer engineering, comes in.

Aided by researchers from Texas Children’s Hospital, Baylor College of Medicine, the University of Texas at Dallas and the University of Texas Southwestern Medical Center, the center is pioneering two technologies: the Visual Imaging System for Tracing and Analyzing Lymphatics with Photoacoustics (VISTA-LYMPH) and Digital Plasmonic Nanobubble Detection for Protein (DIAMOND-P).

Simply put, VISTA-LYMPH uses photoacoustic tomography (PAT), a combination of light and sound, to more accurately map the tiny vessels of the lymphatic system. The process is more effective than diagnostic tools that use only light or sound, independent of one another. The research award is through the Advanced Research Projects Agency for Health (ARPA-H) Lymphatic Imaging, Genomics and pHenotyping Technologies (LIGHT) program, part of the U.S. HHS, which saw the potential of VISTA-LYMPH in animal tests that produced finely detailed diagnostic maps.

“Thanks to ARPA-H’s award, we will build the most advanced PAT system to image the body’s lymphatic network with unprecedented resolution and speed, enabling earlier and more accurate diagnosis,” Li said in a news release.

Meanwhile, DIAMOND-P could replace the older, less exact immunoassay. It uses laser-heated vapors of plasmonic nanoparticles to detect viruses without having to separate or amplify, and at room temperature, greatly simplifying the process. This is an important part of greater diagnosis because even with VISTA-LYMPH’s greater imaging accuracy, many lymphatic diseases still do not appear. Detecting biological markers is still necessary.

According to Rice, the efforts will help address lymphatic disorders, including Gorham-Stout disease, kaposiform lymphangiomatosis and generalized lymphatic anomaly. They also could help manage conditions associated with lymphatic dysfunction, including cancer metastasis, cardiovascular disease and neurodegeneration.

“By validating VISTA-LYMPH and DIAMOND-P in both preclinical and clinical settings, the team aims to establish a comprehensive diagnostic pipeline for lymphatic diseases and potentially beyond,” Xiao added in the release.

The ARPA-H award funds the project for up to five years.

Houston doctor wins NIH grant to test virtual reality for ICU delirium

Virtual healing

Think of it like a reverse version of The Matrix. A person wakes up in a hospital bed and gets plugged into a virtual reality game world in order to heal.

While it may sound far-fetched, Dr. Hina Faisal, a Houston Methodist critical care specialist in the Department of Surgery, was recently awarded a $242,000 grant from the National Institute of Health to test the effects of VR games on patients coming out of major surgery in the intensive care unit (ICU).

The five-year study will focus on older patients using mental stimulation techniques to reduce incidences of delirium. The award comes courtesy of the National Institute on Aging K76 Paul B. Beeson Emerging Leaders Career Development Award in Aging.

“As the population of older adults continues to grow, the need for effective, scalable interventions to prevent postoperative complications like delirium is more important than ever,” Faisal said in a news release.

ICU delirium is a serious condition that can lead to major complications and even death. Roughly 87 percent of patients who undergo major surgery involving intubation will experience some form of delirium coming out of anesthesia. Causes can range from infection to drug reactions. While many cases are mild, prolonged ICU delirium may prevent a patient from following medical advice or even cause them to hurt themselves.

Using VR games to treat delirium is a rapidly emerging and exciting branch of medicine. Studies show that VR games can help promote mental activity, memory and cognitive function. However, the full benefits are currently unknown as studies have been hampered by small patient populations.

Faisal believes that half of all ICU delirium cases are preventable through VR treatment. Currently, a general lack of knowledge and resources has been holding back the advancement of the treatment.

Hopefully, the work of Faisal in one of the busiest medical cities in the world can alleviate that problem as she spends the next half-decade plugging patients into games to aid in their healing.

New accelerator joins the Ion and more Houston innovation news to know

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Editor's note: The Houston innovation scene is buzzing with big news this month, from a new accelerator joining the fold at the Ion to pre-IPO funding and national expansion plans. Below are the five most-read InnovationMap stories from Feb. 1-15, 2026:

New accelerator for AI startups to launch at Houston's Ion this spring

The new AI Native Dual-Use Sports, Health & Wellness Accelerator is expected to launch in March. Photo courtesy of the Ion

The Collectiv Foundation and Rice University have established a sports, health and wellness startup accelerator at the Ion District’s Collectiv, a sports-focused venture capital platform. The AI Native Dual-Use Sports, Health & Wellness Accelerator is scheduled to formally launch in March. Continue reading.

10+ can't-miss Houston business and innovation events in February

From recurring monthly favorites to the return of annual celebrations and summits, here's what not to miss in February. Photo courtesy the Ion.

February may be a short month, but its event calendar isn’t. From recurring monthly favorites to the return of annual celebrations and summits, here are the Houston business and innovation events not to miss — and how to register. Continue reading.

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