This week's roundup of Houston innovators includes Tim Latimer of Fervo Energy, Karen Leal of Insperity, and Kevin Knobloch of Greentown Labs. Photos courtesy

Editor's note: Every week, I introduce you to a handful of Houston innovators to know recently making headlines with news of innovative technology, investment activity, and more. This week's batch includes a podcast with the founder of a fast-growing geothermal company, a human resources expert, and an outgoing climatetech CEO.

Tim Latimer, co-founder and CEO of Fervo Energy

Tim Latimer, CEO and co-founder of Fervo Energy, joins the Houston Innovators Podcast. Photo courtesy of Fervo Energy

Geothermal energy has been growing in recognition as a major player in the clean energy mix, and while many might think of it as a new climatetech solution, Tim Latimer, co-founder and CEO of Fervo Energy, knows better.

"Every overnight success is a decade in the making, and I think Fervo, fortunately — and geothermal as a whole — has become much more high profile recently as people realize that it can be a tremendous solution to the challenges that our energy sector and climate are facing," he says on the Houston Innovators Podcast.

In fact, Latimer has been bullish on geothermal as a clean energy source since he quit his job as a drilling engineer in oil and gas to pursue a dual degree program — MBA and master's in earth sciences — at Stanford University. He had decided that, with the reluctance of incumbent energy companies to try new technologies, he was going to figure out how to start his own company. Through the Stanford program and Activate, a nonprofit hardtech program that funded two years of Fervo's research and development, Latimer did just that. Read more.

Karen Leal, performance specialist at Insperity

Karen Leal, performance specialist at InsperityTime to think ahead, business owners. Here's what this expert thinks you need to prioritize. Photo courtesy

Not only is upskilling your workforce on a regular basis good for performance purposes, it also contributes to a positive company culture, writes Karen Leal, performance specialist with Houston-based Insperity, in a guest column.

"Learning and development (L&D) programs give employees the resources to grow within their current role and ready them for their possible advancement into new positions and/or another role or function," she writes. "This development should be a collaborative effort with the employee to support the employee’s growth goals. L&D programs build and strengthen your organization’s learning culture, which encourages employees to lean into the overall corporate culture and promotes employee engagement."

She goes on to outline the major benefits when developing L&D programs that impact business success. Read more.

Kevin Knobloch, CEO of Greentown Labs

Kevin Knobloch is stepping down as Greentown Labs CEO, effective on July 31. Photo via LinkedIn

While not based full time in Houston, Kevin Knobloch has led Greentown Labs, which is co-located in the Boston and Houston areas, as president and CEO for the past several months. Last week, he announced he's stepping down.

Knobloch will continue in his role until the end of July 2024.

“It has been an honor to lead this incredible team and organization, and a true privilege to get to know many of our brilliant startup founders," Knobloch says in the news release. “Greentown is a proven leader in supporting early-stage climatetech companies and I can’t wait to see all that it will accomplish in the coming years.” Read more.

Kevin Knobloch is stepping down as Greentown Labs CEO, effective on July 31. Photo via LinkedIn

Clean energy nonprofit CEO to step down, search for replacement to begin

moving on

Greentown Labs, which is co-located in the Boston and Houston areas, has announced its current CEO is stepping down after less than a year in the position.

The nonprofit's CEO and President Kevin Knobloch announced that he will be stepping down at the end of July 2024. Knobloch assumed his role last September, previously serving as chief of staff of the United States Department of Energy in President Barack Obama’s second term.

“It has been an honor to lead this incredible team and organization, and a true privilege to get to know many of our brilliant startup founders," Knobloch says in the news release. “Greentown is a proven leader in supporting early-stage climatetech companies and I can’t wait to see all that it will accomplish in the coming years.”

The news of Knobloch's departure comes just over a month after the organization announced that it was eliminating 30 percent of its staff, which affected 12 roles in Boston and six in Houston.

According the Greentown, its board of directors is expected to launch a national search for its next CEO.

“On behalf of the entire Board of Directors, I want to thank Kevin for his efforts to strengthen the foundation of Greentown Labs and for charting the next chapter for the organization through a strategic refresh process,” says Dawn James, Greentown Labs Board Chair, in the release. “His thoughtful leadership will leave a lasting impact on the team and community for years to come.”

Knobloch reportedly shifted Greentown's sponsorship relationships with oil companies, sparking "friction within the organization," according to the Houston Chronicle, which also reported that Knobloch said he intends to return to his clean energy consulting firm.

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This article originally ran on EnergyCapital.

The cuts to positions affects both Greentown Labs locations. Photo via Greentown

Greentown Labs reduces roles at Houston, Boston incubators

tough decisions

Greentown Labs has announced a reduction in its staff, which affects both of its locations.

In a letter addressed to the Greentown Labs community, the organization's CEO and President Kevin Knobloch reported that Greentown will be reducing its staff by 30 percent, eliminating 12 roles in Boston and six in Houston. Knobloch noted changes in leadership, growth of the team, and adjustments following the pandemic.

"Greentown Labs grew rapidly over the past four years in pursuit of advancing its mission to catalyze climate action through entrepreneurship, partnership, and collaboration," Knobloch writes in the letter. "This created a structural deficit where growth outpaced revenue."

The letter did not provide details of which positions were eliminated at either location.

With these resizing of the staff and reduced expenses, Knobloch writes that the organization is positioned well for its future.

"Despite this decision, I remain optimistic about the future for Greentown and the impact we will have on addressing the climate crisis," Knobloch tells the community. "Our mission is as urgent as ever and we remain committed to supporting all of you—our startups—by prioritizing core operations, member services, and strategic partner engagements."

Knobloch took the helm of Greentown last summer. He previously served as chief of staff of the United States Department of Energy in President Barack Obama’s second term.

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This article originally ran on EnergyCapital.

Meet the six startups that will be working with Shell and Greentown Labs for the next six months. Photo via Greentown

6 energy tech startups named to corporate-backed manufacturing accelerator

go make

Greentown Labs has named the six participating climatetech startups for an accelerator for a global energy leader.

Shell and Greentown Labs announced the cohort for Greentown Go Make 2023 — a program designed to accelerate partnerships between startups and corporates to advance carbon utilization, storage, and traceability solutions with manufacturing in mind. Shell, which invests in net-zero and carbon-removal technologies, is hoping to strategically align with startups within carbon utilization, storage, and traceability across the energy transition spectrum.

“At Greentown Labs we recognize and appreciate the role energy incumbents must play in the energy transition, and we’re eager to facilitate meaningful partnerships between these impressive startups and Shell—not only to advance these technologies but also to help Shell achieve its sustainability goals,” Kevin Knobloch, CEO and President of Greentown Labs, says in a news release. “We know carbon utilization, storage, and traceability will play a critical role in our collective efforts to reach net-zero, and we’re enthusiastic about the potential impact these companies can have in that work.”

The cohort, selected from 110 applications, is co-located at Greentown's Houston and Somerville, Massachusetts, locations and includes:

  • Portland-based Caravel Bio is developing a novel synthetic biology platform that uses microbial spores and enzymes to create catalysts that are long-lasting and can withstand extreme conditions and environments.
  • Circularise, which is based in the Netherlands, is developing a blockchain platform that provides digital product passports for end-to-end traceability and secure data exchange for industrial supply chains.
  • Corumat, based in Washington, converts organic waste into high-performance, insulating, greaseproof, and biodegradable packaging materials.
  • Cambridge, Massachusetts-headquartered Lydian develops a fully electrified reactor that can convert a variety of gaseous, non-fossil feedstocks into pure syngas with high efficiency.
  • Maple Materials from Richmond, California is developing a low-cost electrolysis process to split carbon dioxide into graphite and oxygen.
  • Ontario, Canada-founded Universal Matter develops a proprietary Flash Joule Heating process that converts carbon waste into high-value and high-performance graphene materials to efficiently create sustainable circular economies.

The program, which includes $15,000 in non-dilutive stipend funding for each company, will work closely with Shell and Greentown over six months via mentorship, networking opportunities, educational workshops, and partnership-focused programming to support collaboration. Go Make 2023 concludes with a showcase event on March 27 at Greentown Labs’ Houston location.

This week, Shell announced another accelerator cohort it's participating in. The Shell GameChanger Accelerator, a partnership with the U.S. Department of Energy’s National Renewable Energy Laboratory (NREL), named four West Coast climatetech companies: DTE Materials, Hexas Biomass, Invizyne Technologies, and ZILA BioWorks. The program provides early-stage cleantech startups with access to experts and facilities to reduce technology development risk and accelerate commercialization of new cleaner technologies.

“Tackling the climate challenge requires multifaceted solutions. At Shell, we believe technology that removes carbon dioxide from the atmosphere will be essential for lowering emissions from energy and chemical products,” Yesim Jonsson, Shell’s GCxN program manager, says in a statement. “The companies in GCxN's sixth cohort embody these objectives and have the potential to usher in a more sustainable future.”

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This article originally ran on EnergyCapital.

This week's roundup of Houston innovators includes Jeremy Pitts of Activate Houston, Tim Boire of VenoStent, and Kevin Knobloch of Greentown Labs. Photos courtesy

3 Houston innovators to know this week

Editor's note: In this week's roundup of Houston innovators to know, I'm introducing you to three local innovators across industries — from medical device to climatetech — recently making headlines in Houston innovation.

Jeremy Pitts, managing director for Activate Houston

Jeremy Pitts has been named the inaugural Houston managing director for Activate. Photo via LinkedIn

Activate named Jeremy Pitts as the Houston managing director this month. The nonprofit, which announced its new Houston program earlier this year, was founded in Berkeley, California, in 2015 to bridge the gap between the federal and public sectors to deploy capital and resources into the innovators creating transformative products.

For Activate Houston, the challenge is to focus on finding and supporting innovators within the energy sector.

"There are so many reasons to be excited about the energy transition and overall innovation ecosystem in Houston — the region's leadership in energy and desire to maintain that leadership through the energy transition, the many corporations leading the charge to be part of that change who are speaking with their actions and not just their words, the incredible access to talent, the region's diversity, the list goes on and on," Pitts tells InnovationMap. Read more.

Tim Boire, CEO and co-founder of VenoStent

Tim Boire shares his company's roadmap on this week's episode of the Houston Innovators Podcast. Photo via LinkedIn

Commercializing a health tech innovation is a long game — fraught with regulatory obstacles, cyclical rounds of funding, and continuous improvement — all fueled by the desire to enhance treatment and save lives.

That's Tim Boire's plan. And it's a thorough one at that. On this week's episode of the Houston Innovators Podcast, Boire — president and CEO of VenoStent, a medical device startup that’s designing a unique material for hemodialysis patients — shares his roadmap for his company.

"We believe we can be pioneers of a paradigm shift in vascular surgery — to not just treat problems after they've already occurred, but actually prevent them from occurring in the first place," he says in the episode. Read more.

Kevin Knobloch , CEO of Greentown Labs

Kevin Knobloch will lead Greentown Labs as CEO. Photo via LinkedIn

While not based in Houston, Kevin Knobloch, who served as chief of staff of the United States Department of Energy in President Barack Obama’s second term, is definitely going to be someone to know in the innovation ecosystem. He will be CEO of Greentown Labs, effective September 5. In his role, Knobloch will oversee both Greentown locations in Houston and Somerville, Massachusetts, outside of Boston.

“I’m honored and thrilled to have the opportunity to once again pass the leadership baton,” Greentown Co-Founder Jason Hanna says, who has been serving as interim CEO. “Especially so given Kevin’s incredible record of climate leadership. I’m excited for the future of this organization and the impact he can make as Greentown enters the second decade of its climate mission.” Read more.

Kevin Knobloch will lead Greentown Labs as CEO. Photo via LinkedIn

Greentown Labs names new CEO to oversee Houston, Boston incubators

seeing green

The largest climatetech incubator in North America has named an Obama Administration appointee as its next CEO.

Kevin Knobloch, who served as chief of staff of the United States Department of Energy in President Barack Obama’s second term, will be CEO of Greentown Labs, effective September 5. In his role, Knobloch will oversee both Greentown locations in Houston and Somerville, Massachusetts, outside of Boston.

“Kevin has a proven and impressive track record of growing, operationalizing, and leading a dynamic mix of organizations at different stages and in various industries, all of which have aligned with his unwavering commitment to addressing the climate crisis,” Greentown Labs Board Chair Dawn James says in a news release. “On behalf of the entire Board of Directors, I am thrilled to welcome Kevin as our next CEO. We are excited for what is to come under Kevin’s leadership and look forward to the positive impact he will undoubtedly have on our team, our startup community, and the ecosystem at large.”

With 30 years of experience across sectors, Knobloch most recently served as president of Knobloch Energy, an independent advisory and consulting firm. He also served as acting executive director of the National Offshore Wind Research & Development Consortium from June through December 2022. From 2018 to 2020, Knobloch was president of New York OceanGrid LLC, where he led Anbaric’s efforts to develop offshore wind transmission in New York.

“I’m honored and thrilled to have the opportunity to once again pass the leadership baton,” Greentown Co-Founder Jason Hanna says, who has been serving as interim CEO. “Especially so given Kevin’s incredible record of climate leadership. I’m excited for the future of this organization and the impact he can make as Greentown enters the second decade of its climate mission.”

The appointment follows an executive search that began after Greentown's previous CEO Emily Reichert announced she was stepping down in December.

“I’m delighted to be asked by Greentown Labs’ Board of Directors to be the next leader of this highly effective organization—and very excited to get to work,” Knobloch says in a statement. “I’ve long admired the critical role Greentown plays in supporting the growth and impact of early-stage climate and energy transition technology companies, as well as the impressive efforts by former longtime CEO Emily Reichert and the talented Board and staff to build Greentown into a national powerhouse and model for other incubators around the world. The climate crisis demands that we accelerate our collective pace of deployment and I look forward to collaborating with our startups, staff, and partners to support that acceleration.”

The announcement comes on the heels of Greentown naming its inaugural Houston general manager. Timmeko Moore Love was named to that new position last week.

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Houston company wins AHA competition for pediatric heart valve design

winner, winner

Houston-based PolyVascular, which develops minimally invasive solutions for children with congenital heart disease, was named the overall winner of the American Heart Association’s annual Health Tech Competition earlier this month.

The company was founded in 2014 by Dr. Henri Justino and Daniel Harrington and was part of TMCi's 2017 medical device cohort. It is developing the first polymer-based transcatheter pulmonary valve designed specifically for young children, allowing for precise sizing and redilation as the child grows while also avoiding degradation. PolyVascular has completed preclinical studies and is working toward regulatory submissions, an early feasibility study and its first-in-human clinical trial thanks to a recent SBIR grant from the National Heart, Lung, and Blood Institute.

With the new AHA honor, PolyVascular will be invited to join the association’s Center for Health Technology & Innovation Innovators’ Network, which connects entrepreneurs, providers and researchers to share and advance innovation in cardiovascular and brain health.

“This is a tremendous honor for PolyVascular—we’re especially proud to bring hope to families and children living with congenital heart defects,” Justino said in a news release. “Our technology—a minimally invasive valve that can be expanded over time to grow with the child—has the potential to dramatically reduce the need for repeated open-heart surgeries.”

The Health Tech Competition is a live forum for health care innovators to present their digital solutions for treating or preventing cardiovascular diseases and stroke.

Finalists from around the world addressed heart failure, hypertension, congenital heart defects and other issues that exist in cardiovascular, brain and metabolic health. Solutions were evaluated on the criteria of validity, scientific rigor and impact.

The judges included Texas-based Dr. Eric D. Peterson, professor of medicine in the division of cardiology at UT Southwestern Medical Center, and Dr. Asif Ali, clinical associate professor of cardiovascular medicine at the University of Texas Medical School in Houston and director at Cena Research Institute.

According to the American Heart Association, nearly half of U.S. adults live with some form of cardiovascular disease or stroke.

“The American Heart Association plays a pivotal role in advancing innovative care pathways, and we’re excited that our solution aligns with its guidelines and mission,” Justino said in a news release. “It’s time these life-changing technologies reach the youngest patients, just as they already do for adults.”

EO Houston is where ambitious founders go to scale smarter

Don't Go It Alone

Scaling a business from early traction into true growth is one of the most exciting — and punishing — chapters of entrepreneurship. Houston founders know this better than most. Our city is built on ambition: fast-moving industries, talent from around the world, and opportunities that expand as large as the Texas sky.

But as many entrepreneurs eventually learn, scaling isn’t simply “more of what worked.” It requires new systems, new thinking, and often, a new version of the founder. Even the most capable founders eventually face decisions, pressures, and turning points that only other entrepreneurs can truly understand.

Entrepreneurs’ Organization, a global peer-to-peer network of more than 18,000 business owners across 220 chapters in 75+ countries, exists for exactly this stage. One of the largest chapters in the organization, EO Houston brings that global community to life locally, offering founders the connection, learning, and accountability needed to grow sustainably and to grow up as leaders.

A community where founders learn at the highest level
The real value of EO emerges in the lived experiences of other entrepreneurs. When Houston-area founders talk about the moments growth nearly broke their companies, a universal theme appears: you can’t do it alone.

EO Houston member Robert De Los Santos of Sky High Party Rentals learned this the hard way when rapid post-COVID growth made expansion feel limitless — until it wasn’t.

“After COVID, we doubled every year and assumed inventory was the limit. In 2023 we overbought, only to realize demand had peaked. That taught us a hard truth: growth in one city has ceilings. Expanding into Austin and Dallas — the Texas Triangle — gave us new markets to put our inventory to work while we figured out how to penetrate Houston better. The challenge shifted from a strategy of ‘buy more units for demand’ to learning how to tackle the challenges of ‘leading across cities.’”

Founders often enter EO exhausted from trying to maintain control as things grow more complex. Many discover, like Jarred King of Summit Firms, that scaling requires the difficult shift from doing everything to building the team that can.

“We grew quickly because of my network, relationships, and hustle… but I was doing all the work,” King says. “I realized at that point you have to delegate — not just busy work, but important decisions to your key team, as well as set up really effective SOPs.”

“The uncomfortable truth is that you are no longer the best person for most jobs in your company," agrees Darren Randle of Houston Tents & Events. "Your inability to delegate or hire people smarter than you in key leadership and management level roles will become the single biggest drag on the entire business. You have to accept that your original 'hustle' is now a scalability risk."

Making hard decisions, such as walking away from customers or contracts, can feel like less of a sting when you know others have also been faced with tough choices. Aaron Gillaspie of West U's My Salon Suite recalls, “You can’t be everything to everyone, it’s ok to say no, and just understand some customers aren’t the right fit. It’s a two way street and both must win.”

Perspective is perhaps the most important reality check that members find at EO.

“Bigger volume will not make problems go away — you just got to get used to walking the tightrope," says Roger Pombrol of Emerald Standard. "Develop a system for good balance and do not freak out. Scared is no way to live your life. It’s ok if you fall. Your family will still love you. Money is just money. Love is love. The world tries to make you conflate them, but don’t."

Actionable insights from entrepreneurs who’ve already scaled
Conversations like these are happening every month inside EO Forum Meeting. Each EO chapter is divided into several small Forums. These confidential, committed group of 7–10 entrepreneurs who meet to share the real five percent of what they’re experiencing. It’s not advice, but experience — shared candidly, respectfully, and with the kind of vulnerability that leads to breakthroughs.

What makes Forum so impactful is the honesty it draws out. Entrepreneurs are often surrounded by employees, partners, and even family members who rely on them for answers, but seldom do they have a group where vulnerability is not only welcomed, but expected.

Learning experiences that match your ambition
EO supports that growth far beyond peer groups. Through the organization’s global partnerships with institutions like Harvard, Oxford, and INSEAD, Houston members gain access to executive-level learning experiences designed specifically for entrepreneurs.

These programs help founders step out of the day-to-day and think strategically about competitive advantage, innovation, and organizational leadership. Paired with ongoing learning through EO Jumpstart, Nano Learning, and its global library of member-created content, founders stay informed, challenged, and ahead of emerging trends.

And through global communities — ranging from EO Women and EO Under 35 to industry-specific groups — Houston members tap into expertise that spans continents and sectors. Whether someone is navigating M&A, exploring international expansion, or integrating new technologies, the right perspectives are always within reach.

What truly distinguishes EO Houston, however, is its culture. Houston’s entrepreneurial landscape is uniquely diverse and resilient, filled with founders who are hungry to build, innovate, and elevate the city’s business community. EO Houston amplifies that spirit, creating relationships that are as supportive as they are strategic. Many members describe the chapter not simply as a network, but as a catalyst for becoming better leaders, better thinkers, and — just as importantly — better human beings.

Your next level starts here
For entrepreneurs who are ready to scale—beyond their first million, beyond their current comfort zone, and toward a future that requires sharper leadership and stronger community—EO Houston offers an unmatched platform. It is a place where ambitious founders grow faster, think bigger, and gain the confidence to take bold next steps.

If you’re ready to elevate your business and your leadership alongside people who understand the journey, EO Houston is ready to welcome you. Your next level starts with the peers who can help you reach it. Learn more and become a member here.

3 Houston companies land on Deloitte’s Technology Fast 500 list

trending up

Three Houston companies have made this year’s Deloitte North America Technology Fast 500 list.

The report ranks the fastest-growing technology, media, telecommunications, life sciences, fintech, and energy tech companies in North America. The Houston companies to make the list, along with their revenue growth rates from 2021-2024, include:

  • No. 16 Action1 Corp., a provider of cybersecurity software. Growth rate: 7,265 percent
  • No. 92 Cart.com, a commerce and logistics platform. Growth rate: 1,053 percent
  • No. 312 Tellihealth, a remote health care platform. Growth rate: 244 percent

“Houston’s unique blend of entrepreneurial energy and innovation continues to strengthen the local business community, and I’m thrilled to see Houston companies honored on the 2025 Deloitte Technology Fast 500 list. Congratulations to all the winners,” said Melinda Yee, managing partner in Deloitte’s Houston office.

Action1 is no stranger to lists like the Deloitte Technology Fast 500. For instance, the company ranked first among software companies and 29th overall on this year’s Inc. 5000, a list of the country’s fastest-growing private companies. Its growth rate from 2021 to 2024 reached 7,188 percent.

Mike Walters, president and co-founder of Action1, said in August that the Inc. 5000 achievement “reflects the dedication of Action1’s global team, who continue to execute against an ambitious vision: a world where cyberattacks exploiting vulnerabilities are entirely prevented across all types of devices, operating systems, and applications.”

Atlanta-based Impericus, operator of an AI-powered platform that connects health care providers with pharmaceutical and life sciences companies, topped the Deloitte list with a 2021-24 growth rate of 29,738 percent.

“Our mission is to set the standard for ethical AI-powered physician connections to pharma resources, accelerating and expanding patient access to needed treatments,” said Dr. Osama Hashmi, a dermatologist who’s co-founder and CEO of Impiricus. “As we continue to innovate quickly, we remain committed to building ethical bridges across this vital ecosystem.”