Top innovation leaders talk Houston's strengths, weaknesses

finalists weigh in

Clockwise from top left: Jesse Martinez, Adrianne Stone, Phillip Yates, Carlos Estrada, Atul Varadhachary, and Juliana Garaizar. Photos courtesy

The six finalists in this year's Ecosystem Builder category for the Houston Innovation Awards shared many reasons why Houston has been a great place for them to launch their startups.

Still, they've seen first-hand how Houston can grow and change to better support founders like themselves. We asked each to share their thoughts on the strengths and weaknesses of the local innovation ecosystem and about the roles they're playing in the scene's evolution. Scroll down to see what each finalist had to say.

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What are the strengths of the Houston innovation ecosystem?

Adrianne Stone, founder of Bayou City Startups: "Outside of our obvious advantages in health care, energy and space technology I would say that our biggest strength is in the diversity of our community. Everyone brings such unique perspectives, experiences, and ideas to the table that it allows Houston to truly think outside of the box when we leverage that superpower."

Atul Varadhachary, managing partner at Fannin Innovation Studio: "The city benefits from its strategic location as a hub for various industries, including energy, aerospace and health care/biotechnology. This diversity of sectors fosters cross-pollination of ideas and expertise, promoting innovation in multiple fields. In the biotechnology field, the Texas Medical Center in Houston, is a major driver of intellectual capital and contributes to a highly skilled workforce. This potential has not been fully leveraged as yet, but I have seen and contributed to much progress over the last three decades."

Carlos Estrada, growth partner at First Bight Ventures and head of venture acceleration at BioWell: "Houston’s strengths lie in its diverse industries, from energy to health care to bioindustrial manufacturing and its academic institutions which nurture talent and innovation. A new wave of startup organizations also provides startups and SMBs with mentorship, funding opportunities, and critical networking connections. This combination of industry diversity, academic excellence and supportive organizations creates an ideal environment for startups to grow."

Jesse Martinez, founder and CEO of invincible: "The Houston innovation ecosystem continues evolving as it naturally pivots and iterates like a startup. We have a number of existing and new stakeholders who deeply care about Houston, as we all work together to make it a global tech hub destination. Through our SDOs, TMC, Houston Methodist, Helix Park, The Ion, NASA, our universities, and startup community leaders, it's all about us helping to connect the dots for our entrepreneurs so they may grow and thrive in Houston."

Juliana Garaizar, founding partner of Energy Tech Nexus: "Houston has the talent, the corporations and the great intersection of industries were innovations happen: energy, medical and space. Houston knows how to do hard things. We are doers, and we know how to build on our key strengths and are resilient when things don't go according to plan. Our geographic situation and our port make us a global hub and the most diverse city in the U.S."

Phillip Yates, CEO of Equiliberty Inc.: "I believe Houston's innovative ecosystem's greatest strengths reside in its diverse group of citizens and our healthy local economy, which includes the energy sector, medical, and aerospace industries."

What are the weaknesses of the Houston innovation ecosystem? Are you helping to make improvements to these weaker aspects of the community and, if so, how?

Stone: "The first thing that comes to mind is a lack of early stage funding for startups, especially for those with founders from underserved backgrounds. And the second thing is the sheer size of our geographic distribution makes it hard for folks to connect and those kismet collisions to occur. I'm working to improve this by inviting investors to our events, networking more broadly outside of the region and inviting folks to come back to visit, and by hosting a predictable recurring meetup every month so folks can get plugged into the broader ecosystem."

Varadhachary: "In the life sciences space, where I primarily play, our biggest challenge is that the early-stage drug development process is complex and requires direct product development experience. At Fannin, I have helped address this challenge by creating one of the largest talent development programs in the U.S., boasting over 350 alumni. I am especially proud of our alumni diversity — about half are women and most are BIPOC. Fannin draws from local institutions and major institutions across the country. Half of our alumni remain in Houston, many of whom, alongside students I’ve taught, have gone on to join or found startups. Other Fannin alumni have joined major companies around the U.S. and have often come back to help support our local ecosystem."

Estrada: "Houston’s biggest challenge is limited early-stage venture capital. To address this, I organized pitch events at WeWork Labs to attract outside investors and guided startups on how to raise funds while keeping their headquarters in Houston. Furthermore at Rice University’s Liu Idea Lab and Rice Alliance, supporting commercialization was key to launching more local scientist-entrepreneur-led startups. Through First Bight Ventures, I also support local startups like Via Fuels and attract outside startups to scale their manufacturing operations in Houston, further growing the ecosystem."

Martinez: "The current weaknesses of our current Houston innovation ecosystem is two-fold: We need true early stage capital (pre-seed and seed) to support our founders. We also need more incubators and accelerators across the Houston area to support our geographically disbursed founders and founders-to-be in The Woodlands, Katy, and Sugar Land, along with more in central Houston. At invincible, we are committed to helping support and champion our Houston-area innovation community by launching a Mom Tech Incubator (HERA), an early-stage fund, and an industry-specific venture studio. Long term, we will need a growth-stage fund to better support our local startups and those expanding here for strategic reasons."

Garaizar: "Although Houston has a lot of later stage capital, access to early stage capital is a weakness that we are trying to overcome with capital activation, formation and innovation finance. Although Houston is the most diverse city in the U.S. it is not the most inclusive and equitable, that is why I studied the gender gap in investing and launched initiatives like Portfolia or the Houston Equitable Energy Transition Initiative and I am part of the City of Houston's Women Commission."

Yates: "Houston has a problem with economic disparities, including income inequality, poverty, and lack of access to resources. These economic indicators create real barriers for some individuals to have meaningful access to the Houston innovative ecosystem.Through my work with Equiliberty and other non-profits, I have provided my time and resources to help build a more equitable ecosystem. Through the work I am doing with Equiliberty, Houston Area Urban League, Impact Hub and others, I believe we're making improvements to ensure that any person with a dream of changing the world can do it right here in Houston, Texas. We are all working towards the day when their ZIP code, education background or financial status will not be a determining factor."

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Should your startup opt for SAFEs or convertible notes on your next funding round? This Houston expert weighs in. Photo via Getty Images

Houston startup adviser on navigating SAFE, convertible notes in funding rounds

guest column

As both a founder and occasional early-stage investor in the Houston ecosystem, I've seen firsthand the opportunities and challenges surrounding seed funding for local startups. This critical first fundraising round sets the trajectory, but navigating the landscape can be tricky, especially for first time founders who may not be familiar with the lingo.

One key dynamic is choosing the right deal structure — SAFEs (Simple Agreement for Future Equity) vs. convertible notes are the most common vehicles early stage startups use to raise capital and are far more founder-friendly than a priced round.

Let's start first with what the have in common:

  • Both allow you to defer setting a valuation for your company until a later (likely priced) round, which is useful in early stages or pre-revenue companies
  • Both are cheaper and faster to execute than a priced round, which cash-strapped early stage founders like
  • Both can have terms like valuation cap, discount, conversion event, and pro rata rights.
  • Both are less attractive to investors seeking immediate equity (especially important if starting the QSBS clock is part of your investors strategy or if the investor is newer to startup investing)
  • Both can create messy cap tables and the potential for a lot of dilution for the founders (and investors) if they are used for multiple raises (especially with different terms)

While as you can see they have similarities, they have some important differences. Let's dig in on these next:

SAFEs:

  • Created by Y Combinator in 2013, the intent was to create a simplified, founder friendly agreement as an alternative to the convertible note
  • Is an agreement for future equity for the investor at a conversion event (priced round or liquidation event) which converts automatically.
  • It's not a debt instrument and does not accrue interest or have a maturity date.
  • Generally have much lower upfront legal costs and faster to execute

Convertible Notes:

  • A debt agreement that converts to equity at a later date (or conversion event like a priced round)
  • Accrues interest (usually 2 to 8 percent) and has a maturity date by which the note must either be repaid or convert to equity. If you reach your maturity date before raising a qualifying round, you can often renegotiate to extend the maturity date or convert the note, though be prepared to agree to higher interest rates, additional warrants, or more favorable conversion terms.
  • More complex and take longer to finalize due to non-standard terms resulting in higher legal and administrative costs

It's worth reiterating that in both cases, raising multiple rounds can lead to headaches in the form of complex cap tables, lots of dilution, and higher legal expenses to determine conversion terms. If your rounds have different terms on discounts and valuation caps (likely) it can cause confusion around equity and cap table structure, and leave you (the founder) not sure how much equity you will have until the conversion occurs.

In my last startup, our legal counsel — one of the big dogs in this space for what it's worth — strongly advised us to only do one SAFE round to prevent this.

Why do some investors tend to prefer convertible notes?

There are a few reasons why some investors, particularly angel investors from developing startup ecosystems (like Houston), prefer convertible notes to SAFEs.

  • Because they are structured as debt, note holders have a higher priority than equity investors in recovering their investment if the company fails or is liquidated. This means they would get paid after other creditors (like loans or credit cards) but before equity investors, increasing the likelihood of getting some of their money back.
  • The interest terms protect investors if the founder takes a long time to raise a priced funding round. As time passes, interest accumulates, increasing the investor's potential return. This usually results in the investor receiving a larger equity stake when the note converts. However, if the investor chooses to call in the note instead, the accrued interest would increase the amount of money owed, similar to a traditional loan
  • More defined conversion triggers (including a maturity date) gives investors more control and transparency on when and how their investment will convert.
  • Can negotiate more favorable terms than the standard SAFE agreement, including having both a valuation cap and a discount (uncommon on a SAFE, which usually only has one or the other), interest rates, and amendment clauses to protect them from term revisions on earlier investors by future investors (called a cram-down), etc.
We'll go over what the various terms in these agreements are and what to look out for in a future article

How to choose:

  • Consider your startup's stage and valuation certainty — really uncertain or super early? Either of these instruments are preferable to a priced round as you can defer the valuation discussion
  • Assess investor preferences in your network — often the deciding factor if you don't have a lot of leverage; most local angels prefer c-notes because they see them as less risky though SAFEs are becoming more common with investors in tech hubs like Silicon Valley
  • Evaluate your timeline and budget for legal costs — as I mentioned, SAFEs are way less expensive to execute (though still be prepared to spend some cash).
  • Align the vehicle with your specific goals and growth trajectory

There's no one-size-fits-all solution, so it's crucial to weigh these factors carefully.

The meanings of these round terms like "seed" are flexible, and the average seed funding amount has increased significantly over the past decade, reaching $3.5 million as of January 2024. This trend underscores the importance of choosing the right funding vehicle and approach.

Looking ahead, I'm bullish on Houston's growing startup ecosystem flourishing further. Expect more capital formation from recycled wins, especially once recently minted unicorns like High Radius, Cart.com, Solugen, and Axiom Space exit and infuse the ecosystem with fresh and hungry angels, new platforms beyond traditional venture models, and evolving founder demographics bringing fresh perspectives.

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Adrianne Stone is the principal product manager at Big Cartel and the founder of Bayou City Startups, a monthly happy hour organizer. This article original ran on LinkedIn.

This week's roundup of Houston innovators includes Adrianne Stone of Bayou City Startups, Sarma Velamuri of Luminare, and Curtis Jackson of G-Unity Foundation. 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 health tech to nonprofit — recently making headlines in Houston innovation.

Adrianne Stone, founder of Bayou City Startups

Every month, Adrianne Stone of Bayou City Startups hosts a happy hour for startup founders to create a safe space to network, collaborate, commensurate, and more. Photo courtesy of Adrianne Stone

Adrianne Stone knows firsthand how lonely the startup founder journey is, so she set out to help create a community for founders when she started Bayou City Startups last year. Now, Stone shares on the Houston Innovators Podcast that her monthly happy hours attract over 50 attendees on average.

"Being the venture associate with Capital Factory in Houston, I'd seen what the Houston ecosystem had to offer. There were events — happy hours, coffee meet-ups, all these things," Stone says on the show. "But it was not just a casual networking event usually. I wanted a consistent community where I could show up and say, 'guys, I had the worst week,' to people who got where I was coming from and who could commensurate or lean in and help."

The next opportunity to network with Bayou City Startups is Tuesday, July 18, from 5 to 7 pm at Kirby Ice House. Read more.

Sarma Velamuri, co-founder and CEO of Luminare

Sepsis has been the No. 1 killer hospitals, but this Houston startup has a tech to help mitigate the risk. Photo via Getty Images

When he was an internal medicine physician, Sarma Velamuri watched helplessly as a friend’s 22-year-old daughter lost her life to sepsis. He had to tell his friend that she would not be coming home.

“There are 300,000-plus people a year who die of sepsis,” says Velamuri. “It’s important that people understand it’s not just those who are most susceptible to infections.”

This fact is not only unfortunate, but preventable. And that’s why Velamuri, who describes himself as “a recovering hospitalist,” co-founded Luminare in 2014. A full-time CEO since 2017, Velamuri, who runs the company with co-founder and CTO Marcus Rydberg, is based in the TMC Innovation Factory. Read more.

Curtis Jackson, founder of the G-Unity Foundation

For the second year, Curtis Jackson's program supported Houston student entrepreneurs. Photo courtesy of G-Unity

Chances are, you've heard of 50 Cent — his 2003 album "Get Rich or Die Tryin'" was a soundtrack to many. But Curtis James Jackson III, 50 Cent's real name, has done a lot since gracing your radios. He moved to Houston in 2021 and founded the G-Unity Foundation. In May, he wrapped on the second year of the G-Unity Business Labs, a business development incubator for Houston Independent School District high schoolers.

"I’ve spent years donating my time and energy to communities in need. I started G-Unity to do the same—to give back to kids so they have it a little easier than I did," Jackson writes on the website. "Team building and entrepreneurship are skills I learned along the way, but they are so important to develop early. I look forward to G-Unity supporting programs that are doing the crucial work of teaching kids to excel at life."

Around 150 students participated, and the winners are splitting a $500,000 investment. Read more.

Every month, Adrianne Stone of Bayou City Startups hosts a happy hour for startup founders to create a safe space to network, collaborate, commensurate, and more. Photo courtesy of Adrianne Stone

Houston innovator dedicated to fostering community within local founders

HOUSTON INNOVATORS PODCAST EPISODE 194

Starting a company can be daunting and lonely, but entrepreneurs — at least those who call Houston home — have a monthly opportunity to connect with fellow founders thanks to Adrianne Stone.

Stone, who's had a varied career from getting her PhD in Translational Biology & Molecular Medicine at Baylor College of Medicine and joining the 23andMe team as a scientist to supporting founders at Capital Factory, launched Bayou City Startups last year to help connect Houston founders over beers. Now, Stone shares on the Houston Innovators Podcast that her monthly Bayou City Startups meetups attract over 50 attendees on average.

"Being the venture associate with Capital Factory in Houston, I'd seen what the Houston ecosystem had to offer. There were events — happy hours, coffee meet-ups, all these things," Stone says. "But it was not just a casual networking event usually. I wanted a consistent community where I could show up and say, 'guys, I had the worst week,' to people who got where I was coming from and who could commensurate or lean in and help."

Stone observes a need for that type of community more in Houston than Silicon Valley, where she worked when she was at 23andMe. The Bayou City has less of a concentrated startup scene.

"Houston and the Bay Area could not be more different in a lot of ways," she explains. "Everybody I met had a startup in California — it didn't matter if they worked somewhere else, they had a startup.

"I would love to see more of that here in Houston," Stone continues. "Our founders in Houston are super scrappy. They do so much with so little, and we just do not have the amount of capital floating around this ecosystem that you do in SF. I'd love to see more of that here too."

The next opportunity to network with Bayou City Startups is Tuesday, July 18, from 5 to 7 pm at Kirby Ice House. Stone says she picks different types of bars all over the city to meet people where they are and to offer a variety of locations. She adds that she's always up for co-hosts and partners.

Part of what makes Stone, who consults with startups in a professional capacity, an interesting point of view is her "zig-zagging" career. She's held a wide range of roles at an even wider range of professions before she made it to tech startups.

“The through line for me is following my curiosity,” she says on the show. “I was interested in politics, so I did a White House internship. I had a background in science, so I wanted to do something with it, so I went into teaching. Through teaching, I got interested in web development and blogging, so that's how I made the transition into the digital space.”

Her advice to fellow zig-zaggers? Knowing when to say no to things.

"You can overcommit yourself and you're going to burnout or drop the ball or end up disappointing people," she says, admitting she's had to get better at this herself. "Practice saying no. Make it your default. Founders tend to say yes first."

Stone shares more about her career and her observations on Houston's startup ecosystem on the show. Listen to the interview below — or wherever you stream your podcasts — and subscribe for weekly episodes.

This week's innovators to know include Richard Seline of ResilientH20, Adrianne Stone of Capital Factory, and Ethan Saadia of Wayt. Courtesy photos

3 Houston innovators to know this week

who's who

Editor's note: All three of this week's Houston innovators to know started something new amid a global pandemic — a new job at a Texas-wide accelerator, a new app to help shops and businesses safely serve customers, and a new resilience-focused hub that launched just in time for hurricane season.

Richard Seline, managing director of ResilientH20

Richard Seline of ResilientH2O Partners explains how he's helping foster new hurricane and flood prevention technologies in the Bayou City. Photo courtesy of ResilientH20

Following Hurricane Harvey, Richard Seline saw several emerging startups focusing on flood tech. Meanwhile, he saw insurance companies very interested in finding new technologies in the same space. But, these two entities were not talking.

"It's two different languages," Seline says on the Houston Innovators Podcast. "There's a whole language and a whole mindset within the insurance industry that is not real well known."

Seline, managing director of ResilientH20, along with the Insurance Information Institute and The Cannon, has launched the Gulf Coast & Southwest Resilience Innovation Hub to foster this type of technology and bring insuratech startups and the big insurance players to the table. Stream the podcast and read more.

Adrianne Stone, venture associate for Capital Factory

Adrianne Stone has joined Capital Factory's Houston operations as the company prioritizes digital startup interaction. Photo courtesy of Capital Factory

After spending a year and a half in Silicon Valley on the products team for 23andme, Adrianne Stone is back in Houston, filling the venture associate role for Capital Factory. Stone got her Ph.D from Baylor College of Medicine and replaces Brittany Barreto, another BCM Ph.D who left the position to pursue a new venture.

"The mindset in Silicon Valley is different from how it is here in Texas — in good ways and bad ways. It was interesting to be exposed to a very potent startup vibe," Stone tells InnovationMap. "I'm looking forward to being able to meet all the cool companies, founders, and investors we have here in the Houston area." Read more.

Ethan Saadia, app developer and creator of Wayt

Ethan Saadia, a 17-year-old high school student, created an app to improve the user experience of shopping during a pandemic. Photo courtesy of Wayt

Like most of the world, Ethan Saadia has seen small, local businesses suffer from the social distancing mandates amid the COVID-19 outbreak. Saadia, a rising high school senior, wanted to do something to help.

He created Wayt, a smartphone app that provides businesses and their customers with a platform to communicate making curbside pickup, booking appointments, and even join a virtual line. Ultimately, Wayt has a great opportunity to help businesses — even outside of a pandemic

"From my perspective and experiences from my friends and family," says Saadia, "curbside pickup and virtual lines are definitely here to stay because even before the pandemic, popular places used to have long lines and that presented many new challenges. The pandemic is just accelerating technological change that will make our lives easier." Read more.

Adrianne Stone has joined Capital Factory's Houston operations as the company prioritizes digital startup interaction. Photo courtesy of Capital Factory

Statewide accelerator hires new Houston staffer and embraces 'virtual first' approach amid COVID-19

new hire

For years, Capital Factory has existed to promote innovation and grow startups across Texas and has expanded from its headquarters in Austin to Dallas, Houston, and beyond. In light of COVID-19, the organization has pivoted to make sure it can work with startups remotely and online.

"I think Capital Factory has successfully embraced virtual first," says Bryan Chambers, vice president of the accelerator and fund at Capital Factory. "I think it's gone well and it feels like we're just hitting our stride."

Chambers admits that the onset of the coronavirus had a great effect on Capital Factory — SXSW being canceled did its damage on the organization, which has a huge presence every year. However, cross-state startup collaboration is the driving force behind Capital Factory's Texas Manifesto.

"We're one big state, and we're one big startup ecosystem," Chambers says. "The resources across Dallas, Houston, Austin, North Texas, and San Antonio are available for everybody. Candidly, COVID aligns with that. There's no better time — COVID is erasing the boundaries in a virtual world."

In addition to navigating the transition to virtual operations, Capital Factory has also introduced its newest Houston staff member, as Adrianne Stone has started this week as venture associate for the organization. Stone received her Ph.D in Translational Biology and Molecular Medicine from Baylor College of Medicine before heading out to the West Coast and working at 23andme. She brings both her experience with health tech and Silicon Valley to her position.

"The mindset in Silicon Valley is different from how it is here in Texas — in good ways and bad ways. It was interesting to be exposed to a very potent startup vibe," Stone tells InnovationMap. "I'm looking forward to being able to meet all the cool companies, founders, and investors we have here in the Houston area."

Stone replaces Brittany Barreto, who helped in coordinating her replacement and is staying on part-time for the rest of August to help with training and immersion into the ecosystem. Barreto, who is one of the founders of the recently launched startup masterclass Founder's Compass, has also introduced a new brand called Femtech Focus, that includes a podcast where she talks to innovators in the women's health and wellness space.

"I'm ready to get back into the founder's saddle," Barreto says, adding that there's more to come for Femtech Focus.

Throughout her tenure, Barreto has overseen Capital Factory's Houston portfolio companies — both identifying potential investment opportunities and connecting startups to resources and mentors. She passes the torch to her former BCM classmate, and says she's excited to do so to a fellow Ph.D.

"The last year and a half, I've working really hard on laying this foundation. I don't want all that hard work to go away, so I cared a lot about who was going to take my position," she says. "I wanted to make sure that all my founders had someone who cared about them as much as I do."

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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

8 can't-miss Houston business and innovation events for July

where to be

Editor's note: Summer is in full swing in Houston, but the city's innovation ecosystem isn't slowing down. This month brings AI workshops, energy and manufacturing discussions, entrepreneur-focused networking, and opportunities to connect with investors and industry leaders. Here’s what not to miss and how to register. Please note: this article may be updated to add more events.

July 7 — How Oil and Gas Professionals are Building Wealth Smarter

Hear from oil and gas professionals on how to preserve wealth at this event put on by Financial Advice Center. The conversation will touch on topics like investing, taxes and retirement planning.

This event is Tuesday, July 7, from noon-1 p.m. at the Ion. Register here.

July 7 — What AI, Cybersecurity, and Tequila Have in Common.

Join Blue People and Alpfa Houston for this engaging presentation on the advantages and risks associated with AI at the latest installment of Tech + Tequila Talk. Cybersecurity veteran Reynaldo Gonzalez will lead the conversation.

This event is Tuesday, July 7, from 5-7 p.m. at the Ion. Register here.

July 7 — Speed to Market: Houston’s Advanced Manufacturing Edge

The Greater Houston Partnership presents a forum that explores what allows advanced manufacturing projects in Houston to move from concept to operation, where delays and bottlenecks occur, and more. Industry leaders Jennifer Clement from CliftonLarsonAllen LLP and Sarah Janes from San Jacinto College will lead the discussion.

This event is Tuesday, July 7, from 11:30 a.m.-1 p.m. at the Partnership Tower. Register here.

July 9 — Capital Connections Summit

Houston City College Center for Entrepreneurship will host the Capital Connections Summit this month, with a panel discussion focused on access to capital and technical assistance for small businesses and entrepreneurs. The event will be moderated by the U.S. Small Business Administration Houston District Office and will feature lenders, nonprofit microlenders, business advisors, and entrepreneurial support organizations. A live Q&A will follow the panel.

This event is Thursday, July 9, from 11 a.m.-1:30 p.m. at Houston City College Central Campus. Register here.

July 9 — Upstream: Digital Tech Meetup at Second Draught

Join Timbergrove at this month's gathering of energy, operations and technology professionals from across the upstream ecosystem. Discuss challenges, explore new ideas and network over pizza and beer at Second Draught.

This event is Thursday, July 9, from 5:30–8 p.m. at the Ion. Register here.

July 14 — Why Networking Isn’t Turning Into Deals, And What To Do Instead

Jada Powell, founder of Powell Consulting Group, will break down why networking often fails to convert into deals and what companies can do differently to turn conversations into qualified opportunities. Powell works with oil and gas, energy, and industrial companies on business development solutions. This session is part of the monthly Pipeline Series: How Oil & Gas Companies Actually Grow Revenue.

This event is Tuesday, July 14, from noon-1 p.m. at the Ion. Register here.

July 15 — From Pilot to Performance: Building Your AI Procurement Roadmap

It's not too late to join in on the GHP's two-part AI series on moving from experimentation to implementation. In session two, explore how procurement and supply chain leaders can scale AI responsibly to create long-term business value. This event will be led by Cassye Cook Provost, founder and principal of RossGrigsby Consultancy.

This virtual event is Wednesday, July 15, from 8:30-10 a.m. Register here.

July 30 — Rice University Summer Engineering Innovation Program - Demo Day 2026

Meet the young minds and see the final team project presentations from Rice University’s Summer Engineering Innovation Program. The 10-week program challenges Rice students to solve real-world challenges using AI, digital engineering, model-based systems engineering and Industry 4.0 technologies.

This event is Thursday, July 30, from 6-8 p.m. at the Ion. Find more information here.

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