Houston is considered "emerging" in a new report on global startup ecosystems. Photo by Scott Halleran/Getty Images

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.”

If you are among those companies looking to go public in the near future, now is the time to get your house in order. Photo via Getty Images

Experts: What Houston startup founders need to know about conducting a successful IPO

guest column

Home to a wealth of world-changing innovations and a highly skilled labor pool, Houston has attracted startups and digital tech firms for years. Today, the city stands at the forefront of a promising era with seven Houston startups beginning the year strong with more than $380 million in venture funding, and the city ranked among the top emerging startup ecosystems in North America

Houston-based startups planning their exit strategies have good reason to be optimistic about an initial public offering, or IPO, market that is expected to grow in 2024. After a two-year slump in startup investing, some market watchers are predicting that the IPO window may reopen as the economy improves and inflation and interest rates cool.

But good timing requires good readiness. The window of opportunity for preparation now appears to be a microwindow. As any company that went public at the peak of the dot-com or post-COVID booms can attest, preparation is essential to quickly take action when the time is right. Hitting that microwindow will require that IPO-bound Houston companies be strategic about their IPO readiness planning. A lack of planning can result in an IPO experience that is not well planned, and potentially a missed opportunity altogether.

It’s unclear when the next IPO window will open, or for how long the window will remain open, but it could happen quicker than expected. This unpredictability suggests that Houston startups seeking to go public should start their legal, financial, and regulatory planning now. The important period for many companies planning an IPO begins six to 18 months prior to listing and lasts until the six months post-IPO.

Readying an IPO

We gained several insights from our discussions with CEOs and CFOs who have effectively navigated IPOs recently to provide insights for companies contemplating going public when the next microwindow opens. A company’s comprehensive readiness plan can be key to performing well in the market, whether it is up or down. Summarized below are common key areas that challenged many C-Suite executives in being a public company and, in hindsight, areas they wished they had addressed earlier in the process.

  1. Internal forecasting. Internal forecasting is paramount. In fact, it’s one of the primary takeaways cited in our conversations with the C-suite execs who went through the IPO process. Houston companies on an IPO track should be prepared to provide accurate forecasting and timely fulfillment of projections. Missing projections can result in significant regulatory repercussions.
  1. Key performance indicators and non-GAAP measures. Take reasonable steps towards performing a comprehensive benchmarking study to determine relevant KPIs and non-GAAP measures and metrics to report upon; be ready with the frameworks in place to report upon during quarterly and annual reporting.
  1. Growth story. The ability to communicate the company’s growth story can be essential to an effective IPO. Company leaders should be able to clearly convey topics such as the company’s growth, vision and strategy, its plans for improving performance metrics, the market opportunity, its competitive edge, and how its product or services will meet market demand. Meetings with analysts and other market influencers are also necessary to gain investor support. The executives we talked to said that when they did not invest time in this awareness-building step, they often found themselves rushing to get the word out as the offering date closed in.
  1. Finance infrastructure and human capital. Understand the infrastructure and operating model required to operate as a public company, along with the human capital necessary to sustain operations. Identifying the necessary skillsets and bandwidth within the team supports a smoother IPO process. Collaborating with experienced, independent advisors is also vital. These advisors assist in organizing the process, outlining SEC reporting requirements, updating SEC-compliant financial reporting, preparing Management Discussion and Analysis (MD&A) and pro forma financial information, and offering guidance throughout the pre-IPO preparation.
  1. Governance. IPO-bound companies need to anticipate new corporate governance requirements as a publicly traded entity, particularly in terms of their board of directors. Proper governance and board oversight can be essential to support the quality of financial statements produced by management. Executives told us that recruiting the right board members is often a significant pre-IPO challenge. Identifying these members early is crucial, as the right resources may not be available later.

Closing thoughts

If you are among those companies looking to go public in the near future, now is the time to get your house in order. Companies are often surprised to discover how much preparation it truly takes to operate as a public company. In fact, we typically recommend starting the preparation journey 18 to 24 months before the anticipated public listing date. Simply stated, if you wait until the IPO window opens before gearing up, you likely will be gearing up for the next window.

Deloitte’s complimentary IPO SelfAssess tool can help you gauge your ability to go public with a tailored assessment. The tool provides you with useful insights and identifies potential areas for improvement based on the feedback you provide.

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Will Braeutigam is the U.S. capital markets transactions leader at Deloitte & Touche LLP. Laura Evans is audit and assurance partner at Deloitte & Touche LLP.

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UH lands $1.2M NIH grant to fight superbugs using AI, quantum sensing

drug defense

The fight against antibiotic-resistant bacteria like MRSA is getting science fiction-like upgrades at the University of Houston thanks to a new four-year, $1.26 million grant from the National Institutes of Health.

The university says the recent funding brings total federal support up to $3.5 million for 11 years for the project, which uses AI and quantum-sensing technology to better understand how bacterial proteins develop resistance to drugs.

Any medical professional will tell you that one of the worst things that can happen is almost killing an infection. Bacteria that survive attacks from conventional antibiotic treatments emerge tougher, more resistant and more aggressive than before–making them much harder to treat. A good example is the superbug methicillin-resistant Staphylococcus aureus (MRSA).

UH chemistry professors Yuhong Wang and Shoujun Xu are working on this issue. They know full well that fighting superbugs requires new technology and new approaches, which is what they aim to pioneer with their new grant.

“Drug-resistant bacterial infections such as MRSA are becoming harder to treat, creating an urgent need for faster ways to understand how antibiotics and other small molecules interact with bacterial proteins,” Wang said in a news release.

Wang and Xu’s work centers around GTP, a cellular fuel that can cause tiny changes to a cell's structure when it mutates. Sometimes, those shape changes make it easier for drugs to breach the wall and attack the cells.

The UH scientists are employing AlphaFold, an AI-powered tool that can scan large molecular libraries in seconds. From these models, they can see promising drug combinations for future testing.

Once identified, the team uses their invention, super-resolution force spectroscopy, to monitor the cells. Tiny magnetic beads are attached to genetic material, then magnified to see how strong that material is when pulled. They can measure this incredible microscopic process through an atomic magnetometer, typically used in quantum physics. Combined, all these tools allow a high-definition look at how each molecule might respond to new chemical approaches.

“We're the only chemists in the world that use an atomic magnetometer for biological research,” Xu said. “It's a technique developed by physicists, and there is usually a gap between techniques developed by physicists and biological applications. Yuhong and I have been bridging that gap together for the past 10 years.”

Eventually, Wang and Xu hope to develop powerful software that can be used by drug manufacturers to model cellular responses. With enough predictive data, the software could even get ahead of superbugs’ own mutation, allowing drugs to be developed before new strains arrive.

"We want an algorithm where you input a protein sequence, score the mutation hotspots, and develop new inhibitors before a drug-resistant species even emerges," Wang added.

SpaceX to get more than 700 acres of Texas wildlife refuge in land swap

Space News

A federal judge on Monday, September 21, refused to block the Trump administration from giving SpaceX more than 700 acres of wildlife refuge as part of a land swap in Texas, while environmental groups vowed to continue their legal challenge.

U.S. District Judge Fernando Rodriguez Jr. declined the plaintiffs' request for a preliminary injunction to prevent the parcel exchange, saying they failed to prove it would worsen ecological risks to a Gulf Coast region already transformed by billionaire Elon Musk’s rocket operations.

In June, the U.S. Fish and Wildlife Service approved moving forward with the deal with SpaceX, which would surrender 683 acres the company owns in exchange for the federal land in the Lower Rio Grande Valley National Wildlife Refuge. The 103,000-acre refuge spans four counties along the Texas border and is home to animal habitats and historical landmarks.

Maps show the land SpaceX would acquire would be closer to the company's launchpad near the U.S.-Mexico border.

The swap amounts to a gift of public lands to SpaceX, “clearing the way for bulldozers to tear into this wildlife refuge as soon as next week and turn a public treasure into a private payday,” said Laiken Jordahl, a spokesperson with the Center for Biological Diversity, which filed the lawsuit alongside other opponents including tribal groups. Jordahl said Monday that the litigation will continue even as the exchange goes forward.

“This court order is not the final word. These lands hold incredible spiritual, historical and conservation value for the people and wildlife of South Texas. We won’t stop fighting to keep this irreplaceable public wildlife refuge safe from SpaceX bulldozers,” Jordahl said in a statement.

The lawsuit asks the federal court to halt the exchange, which has worried SpaceX opponents in the area who have long criticized the company's expanding footprint over lost access to beaches and concerns over exploding rockets.

The Fish and Wildlife Service didn’t respond to a request for comment on Monday’s decision. Previously, a spokesperson had said the agency does not comment on ongoing litigation.

The agency issued a final environmental assessment report in June that determined the exchange would cause no significant impact to the area. The report said the federal government believed the acquisition would represent a “net conservation benefit” and provide “substantial long-term conservation value and improving landscape-scale habitat connectivity across refuges in South Texas.”

The judge said that the plaintiffs offered “relatively weak” evidence of environmental harm.

“While they rightfully argue that the preservation of wildlife and historical lands furthers the public interest, they present no evidence demonstrating that the Property will suffer aesthetic, environmental, cultural, or historical degradation during the pendency of this lawsuit,” Rodriguez wrote in his ruling.

In addition, the judge said a preliminary injunction would result in modifications to SpaceX’s development plans, “placing additional hardship on the company’s ability to meet milestones and contractual obligations.”

SpaceX did not return an email seeking comment on the judge's ruling.

The space exploration company first broke ground in Texas more than a decade ago and has expanded rapidly, so much that SpaceX employees last year voted to incorporate their own local government called Starbase.

Rice Alliance, Greentown name winners of Houston Energy and Climate Week pitch competitions

winner winners

Approximately 100 startups from around the world pitched their breakthrough technologies and businesses during Houston Energy and Climate Week, with a select few taking home top prizes and bragging rights.

Each year, investors at the Rice Alliance Energy Technology Venture Forum name the 10 most-promising startups. Greentown's Climatetech Summit also culminates in a pitch event, where member companies can earn cash prizes.

Here's who won at two of the week's anchor events and competitions.

Rice Alliance Energy Tech Venture Forum

The 23nd annual event was held Thursday, Sept. 17, at Rice University’s Jones Graduate School of Business. The most-promising companies were selected by industry experts and participating investors attending the event.

The 10 most-promising companies included:

  • Australia-based Aquafortus, which has developed a non-thermal liquid to liquid desalination technology for resource recovery from wastewater brine
  • Houston-based Focis AI, which converts industrial laser scans into a queryable digital twin of refineries and plants
  • Houston-based ironlattice, a semiconductor manufacturing company
  • Houston-based Licube, which has developed technology to produce ultra-high-purity lithium compounds for the fusion energy, pharmaceuticals, semiconductors and high-performance solid-state battery sectors
  • Houston-based Mars Materials, a clean chemical manufacturing business that is working to convert captured carbon into resources, such as carbon fiber and wastewater treatment chemicals
  • Dallas-based MCatalysis, which has developed a suite of proprietary microwave-driven catalysts to produce high-quality, ready-to-use fuels compatible with existing infrastructure
  • Oslo, Norway-based OTee, an automation machinery manufacturer
  • Houston-based Pike Robotics, which deploys its Wall-Eye robot to inspect hazardous tanks without taking assets offline
  • New Mexico-based Spiritus, a direct-air-capture (DAC) technology company
  • San Francisco-based UptimeAI Inc., which develops AI reasoning agents for industrial operations teams

Stellai won the People's Choice Award. The Norwegian company develops AI products for the waste management industry.

The energy technology ventures selected to participate in the forum were named earlier this year. See the full list here, and read about last year's winners here.

Greentown Lab's Climatetech Summit

The annual summit was held Wednesday, Sept. 16, featured a number of Houston startups in its pitch competition and lighting pitch round. Judges included Dave Dreessen,, Jon Greene, Naval Preet Singh, Philip Llewellyn, Erin Madro, Justin Yeung, Jay Kim, Rawand Rasheed and Moji Karimi.

Pitch winners included:

  • First place: Elementium Materials' CEO Matthew Dawson, winning a $10,000 cash prize sponsored by TotalEnergies plus another $10,000 in legal services sponsored by Foley Hoag. The company develops advanced battery electrolytes. It is a Greentown Boston member; though Dawson is based in Houston.
  • Second place: Houston-based Solidec CEO and co-founder Ryan DuChanois, winning $5,000 in legal services sponsored by Foley Hoag. The company electrolyzes air, water and electricity into onsite hydrogen peroxide.

Lightening pitch winners included:

  • First place: Montana-based MagDrive Technologies, winning a $1,000 cash prize sponsored by Energy Transition Ventures. The company develops magnetically actuated, zero-emission valve systems that eliminate fugitive emissions and improve reliability.
  • Second place: Houston-based HEXASpec, winning a $500 cash prize sponsored by Foley Hoag. The company has created a new material to improve heat management for the semiconductor industry.

Read Greentown's recap of the summit here.

Houston Energy and Climate Week announced that the 2027 event will move to the spring, held April 4-10.

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