Houston brain health co. secures $6.5M for rare disease study

neuro funding

Goldenrod Therapeutics plans to study how its enzyme inhibitor can treat Friedreich’s ataxia. Photo via Unsplash

Houston-based Goldenrod Therapeutics, part of Fannin Partners' portfolio, has announced the initial close of a $6.5 million series seed preferred stock round.

The round was led by Ataxia Ventures and an affiliate of Fannin, according to a news release.

Goldenrod Therapeutics plans to use the funding to support manufacturing, formulation optimization, IND-enabling studies and a Phase I study of its drug to treat brain inflammation, known as 11h.

The study will consider how 11h, which blocks the enzyme PDE4, could treat Friedreich’s ataxia (FA), a rare genetic disease that affects movement, speech and balance. To date, other PDE4 inhibitors have proven to regulate neuroinflammation and neuronal signaling, but have had adverse gastrointestinal side effects or have not reached enough of the central nervous system, according to Goldenrod.

The company says its 11h is expected to have "broad applicability" with limited emetric side effects.

“Our 11h program is a next-generation, orally bioavailable, brain-penetrant PDE4 inhibitor, where researchers overcame longstanding limitations associated with earlier PDE4 inhibitors," Dr. Dev Chatterjee, CEO of Goldenrod, said in the news release. "We believe this creates the potential for a best-in-class therapy for Friedreich’s Ataxia and a potential foundation for development across multiple neurodegenerative and neuroinflammatory disorders.”

11h was first developed at the University of Nebraska Medical Center (UNeMed). Houston-based Fannin Partners in-licensed the product 2020 and landed SBIR Phase I funding to support its initial development for opioid use disorder soon after.

Goldenrod has also received funding to study 11h's effectiveness for multiple sclerosis, methamphetamine addiction and cocaine addiction.

Goldenrod says it is developing 11h to target a variety of neurological and inflammatory conditions, including Alzheimer's disease, multiple sclerosis, ALS, substance use disorders, Batten disease, pain and traumatic brain injury.

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Nexalin develops non-invasive devices that help reset networks in the brain associated with symptoms of anxiety and insomnia. Photo via Getty Images.

How a Houston company is fighting anxiety, insomnia & Alzheimer’s through waveforms

mental health

A Houston-based company is taking a medicine-free approach to target brain neurologically associated with mental illness.

Nexalin Technology’s patented, FDA-cleared frequency-based waveform targets key centers of the midbrain to support the normalization of neurochemicals through a process known as Transcranial Alternating Current Stimulation (tACS). Delivered via a non-invasive device, the treatment gently stimulates the hypothalamus and midbrain, helping to “reset networks associated with symptoms” of anxiety and insomnia. Early clinical evidence suggests this approach can promote healthier brain function and improved sleep.

Through its recently appointed scientific advisory board (SAB), Nexalin also aims to target Alzheimer’s disease with a clinical development pipeline supported by published data and internal data from studies involving its proprietary DIFS technology. Nexalin’s Gen-2 SYNC and Gen-3 Halo headset delivers the DIFS, which is a waveform that can penetrate deep brain structures implicated in cognitive decline and mental illness.

The board includes experts in neurology, neuroimaging and neurodegenerative diseases with Dr. Mingxiong Huang, Dr. David Owens, and Dr. Abe Scheer coming on board. Nexalin plans to initiate new Alzheimer’s-focused clinical studies in the Q3 2025 by incorporating cognitive testing, imaging biomarkers, and guided metrics to assess treatment efficacy and neural activation.

“I am excited to work alongside Nexalin’s leadership and fellow SAB members to help guide the next generation of non-invasive neuromodulation therapies,” Huang said in a news release. “The intersection of neuroimaging, brain stimulation, and clinical science holds enormous potential for treating neurodegenerative disease.”

Recently, Nexalin’s proprietary neurostimulation device moved forward with a clinical trial that evaluated its treatment of anxiety disorders and chronic insomnia in Brazil. The first of Nexalin’s Gen-2 15-milliamp neurostimulation devices was shipped to São Paulo, Brazil, and the study will be conducted at the Instituto de Psiquiatria University Hospital (IPq-HCFMUSP). The shipments aim to support the launch of a Phase II clinical trial in adult patients suffering from anxiety and insomnia. The Nexalin Gen-2 15-milliamp neurostimulation device has also been approved in China, Brazil and Oman. Its Gen 1 device first received FDA clearance in 2003, according to the company's website.

The company also enrolled the first patients in its clinical trial at the University of California, San Diego, in collaboration with the VA San Diego Healthcare System for its Nexalin HALO, which looks to treat mild traumatic brain injury and post-traumatic stress disorder in military personnel and the civilian population.

Nexalin previously raised $5 million through a public stock offering.
FibroBiologics has opened a new 10,000-square-foot Houston lab to scale up research efforts and pave the way for in-house manufacturing. Photo via Fibrobiologics.com

Houston regenerative medicine company expands lab for future trials

new digs

A Houston regenerative medicine company has unveiled new laboratory space with the goal of expanding its pioneering science.

FibroBiologics uses fibroblasts, the body’s most common type of cell, rather than stem cells, to help grow new cells. Fibroblasts are the primary variety of cells that compose connective tissue. FibroBiologics has found in studies that fibroblasts can be even more powerful than stem cells when it comes to both regeneration and immune modulation, meaning they could be a more versatile way forward in those fields.

In 2023, FibroBiologics moved into new lab space in the UH Technology Bridge. Now, with its new space, the publicly traded company, which has more than 240 patents issued or pending, will be even better equipped to power forward with its research.

The new space includes more than 10,000 square feet of space devoted to both labs and offices. The location is large enough to also house manufacturing drug product candidates that will be used in upcoming trials. Additionally, the company reports that it plans to hire additional researchers to help staff the facility.

“This expansion marks a transformative step forward for our company and our mission,” Pete O’Heeron, FibroBiologics founder and CEO, said in a news release. “By significantly increasing the size of our lab, we are creating the space and infrastructure needed to foster greater innovation and accelerate scientific breakthroughs.”

The streamlined, in-house manufacturing process will reduce the company’s reliance on external partners and make the supply chain simpler, O’Heeron added in the release.

Hamid Khoja, the chief scientific officer for FibroBiologics, also chimed in.

“To date, our progress in developing potentially transformative therapeutic candidates for chronic diseases using fibroblasts has been remarkable,” he added in the release. “This new laboratory facility will enable further expansion and acceleration of our research and development efforts. Additionally, the expansive new space will enable us to bring in-house currently outsourced projects, expand our science team and further contribute to the increased efficiency of our R&D efforts.”

This news arrives shortly after a milestone for the company in its research about neurodegenerative disease. Last month, fibroblast treatments in an animal model study demonstrated a notable regeneration of the myelin sheath, the layer that insulates nerves and is worn down by disease.

“Confirming remyelination in a second validated animal model is an important step in our research and development efforts, offering fresh hope for patients with demyelinating diseases, including multiple sclerosis,” O’Heeron added in a separate release. “These findings advance our mission to develop transformative fibroblast-based therapies that address the root causes of chronic disease, not just their symptoms, and reflect our dedication to pushing the frontiers of regenerative medicine."
Daniel Barvin has a neurodegenerative disease in his near future. He joined Houston-based Coya Therapeutics to help fight for a cure to the aggressively deadly ALS. Photo via Getty Images

How this Houston innovator is using his personal connection to ALS fuel his fight for a cure

guest column

We can never predict how our lives will turn out, but then maybe some of us can. Genetic testing showed that I, like my grandfather, aunt, uncle and father before me, would most likely die of amyotrophic lateral sclerosis, more commonly known as ALS, and/or frontotemporal degeneration (FTD) in my 40s.

Being 36, it’s possible that fear could have overtaken my life, but instead I chose to fight for every chance to change not only my life, but the lives of millions who are suffering or may one day suffer from neurodegenerative disease.

ALS is a rare disease that robs one of their ability to control their muscles, leading them to lose their ability to walk, talk and eventually breathe. Eighty percent of cases are sporadic (of unknown origin) and 20 percent have known genetic causes.

When I learned that I carried the C9ORF72 genetic variant, a causative genetic variant for ALS/FTD) my first instincts were to help others understand their status and where they could turn for help. I saw a vacuum for resources and understanding in the genetic ALS space and I knew that thousands were suffering in darkness.

Through the efforts of many, we created the first ever nonprofit – Genetic ALS & FTD: End the Legacy – focused on fighting for the genetic ALS and FTD communities. After making great strides to fight for our rights and access to care, I was asked if I could help my current CEO, Howard Berman, commercialize Dr. Stanley Appel’s regulatory T Cell (Treg) therapy for ALS.

I joined Coya Therapeutics in 2021 as the first employee, working to build a company that would one day bring life changing therapies to patients. Coya’s therapies are based on Dr. Appel’s discovery that neurodegenerative diseases drive an inflammatory response. As inflammation rises, it damages regulatory T cells, and when Tregs are damaged, inflammation becomes a persistent condition driving degeneration and eventually death.

It was at that point that my life changed from the advocacy world to the therapeutic world. Now over three years later, we are closer than ever to making a paradigm change for how patients with ALS and other neurodegenerative diseases are treated.

At Coya, we believe that combination biologics are the future of treating neurodegenerative diseases. COYA 302 is our lead asset, which has shown promising results in a proof-of-concept study released in March of 2023. We are currently working towards a double-blind, placebo-controlled trial for COYA 302 in ALS set to kick off later this year.

I never wanted to live a life so damned by disease, but when put between a rock and a hard place, the only choice is to fight. I don’t know how my life will end, but I hope that my children will know that I faced a great challenge head on with pride and resilience.

In the end, it is the combination of both the worlds I work in that lead to better outcomes for patients, raising awareness and lifesaving research. This ALS Awareness Month, please join us and our partners like the ALS Association, End the Legacy, and I AM ALS in raising awareness about these conditions, their risks, and treatment options.

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Daniel Barvin is the vice president of operations and patient advocacy at Coya Therapeutics.

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Houston ranks among world’s top 30 emerging startup ecosystems

Startup Status

Long known as the Energy Capital of the World, Houston also ranks among the world’s top 30 emerging startup ecosystems, according to a new report.

The report from Startup Genome, a research and advisory organization, doesn’t assign a specific numeric ranking to Houston’s startup ecosystem. Rather, it puts Houston in the ranking range of 21 to 30 for emerging ecosystems. Startup Genome weighed factors such as early-stage funding, performance and talent to identify the top emerging ecosystems.

Houston also gained notice for being one of the world’s 20 emerging ecosystems with at least four unicorn startups in the past 10 years. Houston and nine other ecosystems each had four unicorns.

According to StartupBlink, a startup research platform, Houston’s startup ecosystem grew 24 percent in 2025, with over 1,300 startups and total startup funding exceeding $808 million. StartupBlink places Houston at No. 46 among the world’s top 100 startup ecosystems.

In a recent post on LinkedIn, David Horsup, executive in residence at the Rice Alliance Clean Energy Accelerator, wrote that Houston “has all the ingredients to be wildly successful if it stays true to its differentiated pillars that drive the economy — energy, medical, and aerospace.”

Mumbai topped Startup Genome’s list of emerging ecosystems, followed by Istanbul, Madrid, Salt Lake City-Provo and Barcelona. After Salt Lake City-Provo, the top U.S. ecosystems were Phoenix, Detroit, Minneapolis and Las Vegas.

Silicon Valley led Startup Genome’s ranking of the world’s top established ecosystems, followed by New York City, London, Tel Aviv and Boston. Austin landed at No. 18 in this category and Dallas at No. 27.

“For much of the past decade, this report has chronicled the welcome dispersion of opportunity beyond the traditional hubs,” Startup Genome writes. “That trend has not died — but it has been complicated. Capital and scale are consolidating once more, particularly in the United States, and the gap between leading and emerging ecosystems is widening.”

KBR names C-suite duo to lead $5.3B government services spinoff

new leaders

In advance of the spinoff of its Mission Technology Solutions unit, Houston-based KBR has made two C-suite hires for the new business.

Michael LaRouche is coming aboard as president and CEO of the spinoff, currently called SpinCo, on Sept. 26. Nicholas Veasey is joining as executive vice president and chief financial officer on July 1.

“Michael and Nick bring a highly complementary combination of operational leadership, financial expertise, and mission-driven experience, and together they will accelerate our impact for stakeholders,” Stuart Bradie, chairman, president and CEO of publicly traded KBR, said in a news release.

LaRouche currently is CEO of Serco North America, a Herndon, Virginia-based government services contractor. Veasey most recently was CFO of MAG Aerospace, a Fairfax, Virginia-based defense contractor.

SpinCo, a government services contractor, will launch with more than $5.3 billion in annual revenue and 20,000 employees. KBR’s total headcount is around 36,000. Branding for SpinCo, including a formal name, will be revealed in July.

“SpinCo is positioned as a top-tier provider of differentiated technology solutions, anchored by deep mission expertise, global scale, and a relentless commitment to delivering for our customers,” LaRouche says.

After the spinoff, the slimmed-down KBR will focus on its Sustainable Technology Solutions business, a provider of energy and industrial technology that generated $2.5 billion in revenue in 2025. Bradie will remain chairman, president and CEO of the business.

Both SpinCo and the new KBR will be public companies. The spinoff is scheduled to be completed in January.

Experts: Houston's VC ecosystem has set the foundation — now we need scale

guest column

Fervo Energy went public earlier this summer. The Houston geothermal company priced its IPO at $27 per share, raised $1.89 billion, and opened the next morning at a market capitalization north of $10 billion. By most measures, it is the largest venture-backed cleantech IPO in history and an unambiguous win for Houston. It’s also a useful moment to look at where Houston's venture ecosystem stands and where it can go. The highlight: Houston's venture ecosystem has real foundations and, with increased company formation activity, can grow into the scale our city's ambitions deserve.

A Houston energy story in the national recovery

The recent uptick in Houston venture activity follows national trends. U.S. venture deal count contracted roughly 22 percent from its 2021 peak through 2024 before rebounding to about 16,700 rounds in 2025. Houston's 23 percent increase in VC funding from 2023 to 2024 is part of a national recovery of comparable magnitude over the same time window.

The energy sector is where Houston exhibits unique trends—and where the story turns clearly positive. (Houston's strong health and space sectors deserve their own separate consideration.) By deal count, energy-related rounds have accounted for 15 to 20 percent of Houston activity, roughly consistent over the past few years.

By capital, energy's share surged from about 14 percent in 2023 to over 60 percent in 2025, driven by a small number of large Houston-headquartered rounds, primarily in geothermal and related technologies. Fervo is the obvious anchor, but Sage Geosystems, Quaise Energy, Zeta Energy, Vaulted Deep, Applied Carbon and Mariana Minerals have all closed meaningful rounds. Houston is concentrated and accelerating as an energy capital market, an invaluable position to build upon.

From foundation to scale

The institutional pieces are in place. Greentown Labs, Activate, the Ion and others have built sector-specialized infrastructure most cities would struggle to assemble. Fervo itself is an alum of both Activate and Greentown Labs. Mercury Fund closed its $160 million Fund V, its largest ever. Houston Angel Network, GOOSE Capital, Fathom Fund, and broader pre-seed and seed capital coverage are here. The Houston $10 million-plus Series A list now includes 40 rounds since 2021, which break roughly into two eras. While 2021 to 2022 was biotech-heavy, with companies like Sporos Bioventures, RadioMedix, Cellenkos and Coya Therapeutics, 2024 to 2025 has tilted clearly toward energy, climate, and critical minerals, with Vaulted Deep, Applied Carbon, Mariana Minerals, Sage Geosystems and Ignis H2 Energy among them.

What’s less developed is the volume of seed-stage companies flowing into that capital. Imagine a dozen more Fervos coming out of that infrastructure over the next decade, each generating jobs, recycled founder capital, and the next wave of operators and angel investors. That is the kind of opportunity Houston has within reach if we build the company-formation pipeline to feed it. To be relevant on the national stage as a venture market, and to drive an economy the size of Houston's into the 2030s, the city needs to be doing closer to 20 Series A rounds per month rather than per year. That throughput implies roughly 1,000 seed rounds per year, feeding the funnel at a 20 percent to 30 percent graduation rate. Reaching such throughput depends on how many new founders Houston produces and how quickly our innovation ecosystem can help them achieve lift-off.

Houston in context

The comparative picture brings the scaling challenge into focus. Between 2021 and 2024, Houston-area startups closed between 126 and 153 disclosed venture rounds per year, against a national count between 9,854 and 14,125. That places Houston at a little over 1 percent of the U.S. deal count. For comparison, Austin ran about three times Houston's deal count each year.

At the Series A level, Houston closed between 12 and 24 rounds in any given year. The median Houston Series A across the period was about $10.7 million, compared with $15.4 million in San Francisco. Houston founders are raising fewer and smaller Series A rounds than founders in peer metros, which points directly to where Houston has the most room to grow.

The unicorn picture tells the same story. From 2021 through 2025, the U.S. produced 590 venture-backed unicorns. Four were Houston-based: Solugen and Axiom Space in 2021, Cart.com in 2023, and Fervo Energy in 2024. Adding HighRadius from 2020 brings Houston's all-time total to five. Austin added 19 over the same five-year window. The path from here is to make Houston's entries on lists like these less the exception and more the rule.

Where this leads

Houston has a real opportunity to become the deepest, most credible energy and climate capital market in the country, with the company formation, talent and operator density to support it. The data shows the foundation is already in place. Fervo, Solugen and the growing roster of energy-adjacent Series A graduates are proof. Fervo's IPO is the first of what should be many. Houston has not had a venture-backed cleantech liquidity event of this scale before, and the city now has one to reference, recruit against and build on. With increased company formation at the seed and pre-seed stages, a Fervo-scale outcome need not be a generational event in Houston, but instead, it can become part of a chain reaction powering the city's economy.

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Stephanie T. Schmidt, PhD, is the founder of a stealth startup, a Venture Fellow at Energy Transition Ventures, and an Executive MBA candidate at Rice University's Jones Graduate School of Business. Lawson Gow is the Chief Operating Officer of Greentown Labs. The full Houston VC landscape report is available at Energy Transition Ventures and CleanTech.Org.

Sources: Crunchbase, PitchBook-NVCA, Carta
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