Thomas Vassiliades, CEO of BiVACOR, joins the Houston Innovators Podcast. Photo courtesy of BiVACOR

Heart disease is one of the most common causes of death in the United States — one in five deaths, according to the CDC. But there's not a long-term solutions for patients — even for those lucky enough to have a successful heart transplant. But a Houston-headquartered medical device company is working on one.

BiVACOR has created a technology that, theoretically, could completely replace a patient's heart and last them the rest of their lives.

"The design is critical," says Thomas Vassiliades, CEO of BiVACOR, on the Houston Innovators Podcast. He joined the organization last year after spending 20 years of a heart surgeon, then transitioning to medical device development over a decade ago.

Vassiliades explains the industry's challenges on the show, saying that there's no comprehensive, lasting replacement to the human heart on the market. While some treatments — like transplants and medical devices that partially replace the heart's capabilities — exist, nothing that completely replaces the heart lasts longer than 10 to 12 years.

"The BiVACOR system is based on magnetic levitation," Vassiliades says about the technology. "Our pump is just one moving impeller that sits in the middle of the housing where the blood is. Imagine an artificial heart — the container that has your blood — and the device spinning in the inside — basically a wheel spinning your blood to the rest of your body.

"The device is suspended by magnets — it's not touching anything," he continues. "So, theoretically, the device has no wear and can last as long as the patient can possibly live. That's new to the field."

Daniel Timms, BiVACOR's founder and CTO, knew there had to be a better, more permanent solution and has been working on the technology since he was a postdoctoral student at Queensland University of Technology in Australia. His work took him to Houston's Texas Heart Institute, the "center of the universe when it comes to blood pumps," says Vassiliades.

The company recently raised $18 million in funding to support its growing team and continued growth. BiVACOR is a Class 3 medical device — the most rigorously regulated type of device, so the funding raised will support the company as it continues to meet the FDA's requirements and proceeds into implantation and clinical trials.

While headquartered in Houston and has close ties to THI, most of BiVACOR's team works out of Huntington Beach, California, just 30 minutes away from its manufacturing partner — something that has been critical for the design phase. Other employees work in Europe and Australia, which has resulted in government grant funding. Each market the company works in has a strategic purpose — and Houston's role is testing.

"We're going to be training all our clinical sites in Houston, and we're going to continue to do ongoing testing," he says. "We're very comfortable with the design of the device, ... but there's always more. And we have a long-term plan to iterate on the device to make it even better."

Vassiliades shares more of the challenges he's facing as he commercializes BiVACOR's technology on the podcast. Listen to the interview below — or wherever you stream your podcasts — and subscribe for weekly episodes.


Houston-based Procyrion has closed a $30 million round — doubling its total funding to date. Getty Images

Houston medical device company closes $30 million round

Follow the money

A clinical-stage medical device company based in Houston has rounded up $30 million for its Series D funding. Procyrion Inc.'s round was lead by Bluebird Ventures — a new funding partner for the company.

Procyrion is developing a blood pump, called the Aortix™ system, that's optimized for patients with heart and kidney failure. Joining in on the round with Bluebird are return investors, including Fannin Partners, Scientific Health Development, the State of Texas, and an undisclosed strategic investor. This round has now more than doubled the company's total funding, bringing that figure now to $59 million.

"Of the more than 1 million patients per year in the U.S. admitted to the hospital with acute decompensated heart failure, 25 to 30 percent also have worsening renal function," says Eric S. Fain, president and CEO of the company, in a release. "These are typically the most difficult to treat patients with high mortality and rehospitalization rates."

The funds, Fain says, will go toward advancing the medical device, specifically enhancing the system's ability to decongest cardio renal patients in the company's pilot program.

"Today there is a major gap in effective therapies that are available to treat these critically ill patients, and as such, there is a significant opportunity to improve patient outcomes," Fain continues in the release. "The Aortix device is uniquely designed and positioned in the body to simultaneously decrease the workload of the heart and improve kidney function."

The Aortix device is a solution for patients who haven't seen success from medical therapy, but don't have the immediate need for a transplant or more drastic solution. The device is thinner than a pencil, the release says, and can be inserted in a matter of minutes in a cath-lab setting. The size and ease of application could be transformational for the large population of heart patients that would need it.

In addition to the funds, Jeff Bird, managing director of Bluebird Ventures, will join the company's board of directors.

"The Procyrion Aortix device provides an elegant solution for managing heart failure, a serious and difficult-to-treat problem," says Bird in the release. "We are excited to work with this experienced team as they begin clinical testing."


The device is thinner than a pencil and can be inserted in less than 10 minutes. Photo via procyrion.com

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Houston shines among top 10 tech metros in the South, study says

Tops in Tech

A study analyzing top U.S. locales for the tech industry ranked Houston the No. 9 best tech hub in the South.

The report by commercial real estate platform CommercialCafe examined the top 20 Southern metros across nine metrics, such as the growth rates of tech establishments and employment, median tech earnings, a quality of life index, and more.

Like other Texas metros, the study attributes Houston's tech powerhouse status to its growing presence of major tech companies. However, Houston leads the nation with the highest number of patents granted between 2020 and 2024.

"The second-largest metro by population in the South, Houston led the region with an impressive 8,691 tech patent grants in the last five years," the report said. "Once synonymous with oil, Houston is increasingly making its mark as a cleantech hub — and patents reflect this shift."

Houston also experienced an impressive 14 percent growth in tech establishments, with nearly 500 new tech companies moving to the metro. An impressive 32 percent job growth rate also accompanied this change, with over 30,500 tech jobs added between 2019 and 2023.

Here's how Houston stacked up across the remaining five rankings:
  • No. 11 – Tech establishment density
  • No. 15 – Median tech earnings
  • No. 19 – Median tech earnings growth
  • No. 20 – Tech job density
  • No. 20 – Quality of life index

In a separate 2024 report, Houston was the No. 22 best tech city nationwide, showing that the city is certainly making efforts to improve its friendliness toward the tech industry in 2025.

Other top Texas tech hubs in the South
The only other Texas metros to earn spots in the report were Austin (No. 1) and Dallas-Fort Worth (No. 4). Most notably, CommercialCafe says Austin saw a 25 percent increase in tech company density from 2019 to 2023, which is the third-highest growth rate out of all 20 metros.

"Moreover, the metro’s tech scene thrives on a diverse range of segments, including AI and green energy (bolstered by the University of Texas), as well as globally recognized events like [South by Southwest]," the report says. "Thus, with tech companies accounting for more than half of all office leasing activity in 2024, Austin remains a magnet for innovation, talent and investment."

Dallas, on the other hand, has a far greater diversity when it comes to its tech sector and its thriving economic opportunities.

"Not to be outdone, Dallas-Fort Worth moved up from sixth to fourth in this year’s rankings, driven by a 25.9 percent growth in tech company presence — the second-highest increase among the top 20 metros," the report said. "For instance, companies like iRely (which relocated to Irving, Texas) and Diversified (now in Plano, Texas) have joined homegrown successes, such as StackPath and Bestow."

The top 10 best tech metros in the South are:

  • No. 1 – Washington, D.C.
  • No. 2 – Austin, Texas
  • No. 3 – Raleigh, North Carolina
  • No. 4 – Dallas-Fort Worth, Texas
  • No. 5 – Huntsville, Alabama
  • No. 6 – Baltimore, Maryland
  • No. 7 – Durham, North Carolina
  • No. 8 – Atlanta, Georgia
  • No. 9 – Houston, Texas
  • No. 10 – Charlotte, North Carolina
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This story originally appeared on our sister site, CultureMap.com.

Houston startup, researchers awarded millions to develop Brain Mesh implant

brain health

Houston startup Motif Neurotech and several Rice research groups have been selected by the United Kingdom's Advanced Research + Invention Agency (ARIA) to participate in its inaugural Precision Neurotechnologies program. The program aims to develop advanced brain-interfacing technologies for cognitive and psychiatric conditions.

ARIA will invest $84.2 million over four years in projects that “explore and unlock new methods to interface with the human brain at the circuit level,” according to a news release.

Three of the four Rice labs will collaborate with Houston health tech startup Motif Neurotech to develop Brain Mesh, which is a distributed network of minimally invasive implants that can stimulate neural circuits and stream neural data in real time. The project has been awarded approximately $5.9 million.

Motif Neurotech was spun out of the Rice lab of Jacob Robinson, a professor of electrical and computer engineering and bioengineering and CEO of Motif Neurotech. It will be developed in collaboration with U.K.-based startup MintNeuro, which will help develop custom integrated circuits that will help to miniaturize the implants, according to a separate release.

Robinson will lead the system and network integration and encapsulation efforts for Mesh Points implants. According to Rice, these implants, about the size of a grain of rice, will track and modulate brain states and be embedded in the skull through relatively low-risk surgery.

The Rice lab of Valentin Dragoi, professor of electrical and computer engineering at Rice and the Rosemary and Daniel J. Harrison III Presidential Distinguished Chair in Neuroprosthetics at Houston Methodist, will conduct non-human primate experimental models for Brain Mesh. Kaiyuan Yang, associate professor of electrical and computer engineering who leads the Secure and Intelligent Micro-Systems Lab at Rice, will work on power and data pipeline development to enable the functional miniaturization of the Mesh Points.

“Current neurotechnologies are limited in scale, specificity and compatibility with human use,” Robinson said in a news release. “The Brain Mesh will be a precise, scalable system for brain-state monitoring and modulation across entire neural circuits designed explicitly for human translation. Our team brings together a key set of capabilities and the expertise to not only work through the technical and scientific challenges but also to steward this technology into clinical trials and beyond.”

The fourth Rice lab, led by assistant professor of electrical and computer engineering Jerzy Szablowski, will collaborate with researchers from three universities and two industry partners to develop closed-loop, self-regulating gene therapy for dysfunctional brain circuits. The team is backed by an award of approximately $2.3 million.

“Our goal is to develop a method for returning neural circuits involved in neuropsychiatric illnesses such as epilepsy, schizophrenia, dementia, etc. to normal function and maybe even make them more resilient,” Szablowski said in a news release.

Neurological disorders in the U.K. have a roughly $5.4 billion economic burden, and some estimates run as high as $800 billion annually in terms of economic disruptions in the U.S. These conditions are the leading cause of illness and disability with over one in three people impacted according to the World Health Organization.

Electricity startup expands to Houston with promise of backup battery power

Power Up

An Austin startup that sells electricity and couples it with backup power has entered the Houston market.

Base Power, which claims to be the first and only electricity provider to offer a backup battery, now serves the Houston-area territory served by Houston-based CenterPoint Energy. No solar equipment is required for Base Power’s backup batteries.

The company is initially serving customers in the Cy-Fair, Spring, Cinco Ranch and Mission Bend communities, and will expand to other Houston-area places in the future.

Base Power already serves customers in the Austin and Dallas-Fort Worth markets.

The company says it provides “a cost-effective alternative to generators and solar-battery systems in an increasingly unreliable power grid.”

“Houston represents one of the largest home backup markets in the world, largely due to dramatic weather events that strain the power grid,” says Base Power co-founder and CEO Zach Dell, son of tech billionaire Michael Dell. “We’re eager to provide an accessible energy service that delivers affordable, reliable power to Houston homeowners.”

After paying a $495 or $995 fee that covers installation and permitting, and a $16- or $29-per-month membership fee, Base Power customers gain access to a backup battery and competitive energy rates, the company says. The startup is waiving the $495 setup fee for the first 500 Houston-area homeowners who sign up and make a refundable deposit.

With the Base Power backup package, electricity costs 14.3 cents per kilowatt-hour, which includes Base Power’s 8.5 cents per kilowatt-hour charge and rates charged by CenterPoint. The average electric customer in Houston pays 13 cents per kilowatt-hour, according to EnergySage.

“Base Power is built to solve a problem that so many Texans face: consistent power,” says Justin Lopas, co-founder and chief operating officer of Base Power and a former SpaceX engineer. “Houstonians can now redefine how they power their homes, while also improving the existing power grid.”

Founded in 2023, Base Power has attracted funding from investors such as Thrive Capital, Valor Equity Partners, Altimeter Capital, Trust Ventures, and Terrain. Zach Dell was previously an associate on the investment team at Thrive Capital.

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This story originally appeared on our sister site, EnergyCapitalHTX.com.