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

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.

Octagos Health has announced a $43 million series B raise that will bring their technology to many more hearts. Image via octagoshealth.com

Houston cardiac health startup raises $43 million series B to grow AI-backed platform

money moves

A Houston-based tech company that has a product line of software solutions for cardiac health has raised funding.

Octagos Health, the parent company of Atlas AI — a software platform for cardiac devices like pacemakers, defibrillators, ambulatory monitors and consumer wearables — has announced a $43 million series B raise that will bring their technology to many more hearts.

Morgan Stanley Investment Capital led the investment, which also included funds from Mucker Capital and other continuing strategic investors. The goal of the raise is to supply funds to accelerate Atlas AI’s growth across the United States and to expand into other areas of care, including ambulatory monitors, consumer wearables, and sleep.

"This investment will enable us to accelerate enhancements to our platform, in addition to scaling our commercial team and operations. We are currently the only company that helps cardiology practices migrate their historical data from legacy software providers and fully integrates with any EHR (exertion heart rate) system. We do this while enabling customized reporting supported by patient and practice decision-support analytics," says Eric Olsen, COO of Octagos Health, in a press release.

Octagos Health was founded by a team of healthcare pros including CEO Shanti Bansal, a cardiologist and founder of Houston Heart Rhythm, an atrial fibrillation center. The goal was to find a new way to deal with the massive amount of data that clinicians encounter each day in a way that combines software and the work of human doctors.

According to the Octagos Health website, “Our solution allows clinicians to focus on other ways of delivering meaningful healthcare and more efficiently manage their remotely monitored patients.”

It works thanks to customizable reporting features that allow patients’ healthcare teams to get help while monitoring them, but to do it precisely as they would if they were crunching numbers themselves.

"We are excited to partner with Octagos Health and support their vision of transforming cardiac care," says Melissa Daniels, managing director of Morgan Stanley Expansion Capital. "Octagos Health has demonstrated exceptional growth and innovation in a critical area of healthcare. We believe their platform and vertically integrated software and services significantly improve patient care and streamline cardiac monitoring processes for healthcare providers."

Will Hsu, co-founder and partner of Mucker Capital, agrees. “Octagos Health is poised for scale – industry leading gross margins, a very sticky product that doctors and clinical staff love, and a market ready for disruption with artificial intelligence. This is the new wave for diagnostic care,” he says. And with this raise, it will be available to even more clinicians and patients across the country.

Nine Houston startups ended 2023 with a fundraise. Photo via Getty Images

These 9 Houston startups start 2024 with fresh funding

q4 2023 vc activity

Houston startups ended 2023 with a flurry of funding news — from several seeds and series As to series C rounds and extensions.

Here are nine Houston startups that secured funding in the fourth quarter of last year, according to reporting by InnovationMap. For further reading, here were 2023's top rounds raised.

Amperon Holdings Inc. closed its $20 million series B in October

It's payday for a startup that's improving analytics for its energy customers. Photo via Getty Images

A Houston startup has raised $20 million in its latest round of funding in order to accelerate its energy analytics and grid decarbonization technology.

Amperon Holdings Inc. announced today that it closed its series B round at $20 million. Energize Capital led the round and the D. E. Shaw group, Veriten, and HSBC Asset Management, an existing investor, joined in on the round. Additionally, two of Amperon's early customers, Ørsted and another strategic utility partner, participated in the series B, which brought Amperon’s total funding to $30 million.

“The energy transition is creating unprecedented market volatility, and Amperon is uniquely positioned to help market participants better navigate the transitioning grid – both in the U.S. and as we expand globally,” Sean Kelly, CEO and co-founder of Amperon, says in the release. Read more.

Velostics raised nearly $2M additional seed funding in October

Velostics has raised additional funding to grow its logistics software. Photo via velostics.com

A Houston company that's providing innovative unified scheduling software for the logistics industries has raised additional seed funding.

Houston-based Velostics Inc. raised $1.95 million, the company announced this week. The additional seed round follows a $2.5 million round announced in 2021. The Velostics platform optimizes scheduling for inbound and outbound trucks, saving companies money across the supply chain and resulting in fewer emissions from idling trucks.

“Scheduling is a major headache for all parties focused on reducing cost and delivering on high customer expectations — our cloud based solution is designed to go live in one day with no apps required,” Gaurav Khandelwal, founder and CEO of Velostics, says in a news release. Read more.

Konect.ai secured $5.5M seed funding in October

Konect.ai is using AI and natural language processing within the automotive retail industry. Image via Getty Images

A Houston startup that's using artificial intelligence and natural language processing to disrupt the retail automotive industry has raised seed funding.

Konect.ai announced a $5.5 million seed investment from Austin-based Silverton Partners. The funding will support the company's development of its software, which hopes to advance communications between auto dealerships and auto tech companies and customers.

"This investment from Silverton Partners is a strong validation of our vision and the hard work of our talented team. With this support, we are poised to accelerate our growth and continue to innovate, bringing the most advanced conversational AI products to the automotive retail industry," Cole Kutschinski, president and CEO of Konect.ai, says in a news release. Read more.

Graylog closed $9M in a series C extension round and $30M in financing in October

Graylog, a Houston SaaS company, has new fuel to scale and develop its product. Photo via Getty Images

A Houston software-as-a-service company has secured $39 million in financing and announced its latest upgrade to its platform.

Graylog, which has created an innovative platform for cybersecurity and IT operations, raised equity funding with participation from new investor Silver Lake Waterman and existing investors Piper Sandler Merchant Banking and Harbert Growth Partners leading the round.

“The growth we are seeing globally is a response to our team’s focus on innovation, a superior user experience, low total cost of ownership, and strong execution from our Go-To-Market and Customer Success teams,” Andy Grolnick, CEO of Graylog, says in a news release. “We expect this momentum to continue as Graylog expands its reach and raises its profile in the security market.” Read more.

RepeatMD raised $50M series A in November

Fresh off a win at the Houston Innovation Awards, RepeatMD has raised funding. Photo by Emily Jaschke/InnovationMap

Just nine months after its seed round, a Houston startup with a software platform for the aesthetic and wellness industry has secured $40 million in venture capital and $10 million in debt facility.

RepeatMD, a SaaS platform, announced today that it's secured $50 million, which includes a $10 million debt facility from Silicon Valley Bank. The round was co-led by Centana Growth Partners and Full In Partners with participation from PROOF and Mercury Fund, which also contributed to the seed round earlier this year.

“Even though the aesthetics and wellness industry has continued to innovate a growing range of life-changing treatments, practices continue to face challenges selling treatments and services that are new and unfamiliar to patients,” Phil Sitter, CEO of RepeatMD, says in the release. Read more.

Kahuna Workforce Solutions secures $21M series B in November

Kahuna Workforce Solutions, which provides HR software solutions, announced it has closed a $21 million series B. Photo via Getty Images

A Houston company with a software platform to enhance skills management operations has raised its series B.

Kahuna Workforce Solutions announced it has closed a $21 million series B funding round led by Baltimore-based Resolve Growth Partners. Kahuna's platform provides its users — which come the from health care, energy, field service, and manufacturing industries — with effective assessment, training and development, and staffing and deployment initiatives.

“We are thrilled to work with Resolve as Kahuna begins the next growth phase. Their expertise in enterprise software, and commitment to innovation and continuous improvement fully aligns with our mission, vision, and goals for Kahuna,” Jai Shah, CEO of Kahuna Workforce Solutions, says in a news release. Read more.

Allganize closed $20 million series B in November

Allganize recently closed a $20 million series B round of funding, bringing its total amount raised to $35 million. Graphic via allganize.ai

A Houston tech startup with an artificial intelligence technology has announced it's raised two rounds of funding as it plans to continue developing its product and IPO in Japan.

Allganize recently closed a $20 million series B round of funding, bringing its total amount raised to $35 million, according to the company. Allganize developed Alli, an all-in-one platform for enabling large language models, that's used by over 200 enterprise and public companies globally, including Sumitomo Mitsui Banking Corporation, Nomura Securities, Hitachi, Fujitsu, and KB Securities.

"This investment accelerates our journey towards global expansion and achieving a milestone of listing on the Japanese stock exchange by 2025," Changsu Lee, CEO of Allganize, says in a news release. Read more.

EndoQuest Robotics Inc. announced $42 million series C in December

Houston-based EndoQuest has closed a $42 million round. Photo via Getty Images

A Houston medical device company that's tapping into robotics technology for the operating room has just announced a major chunk of fresh funding.

EndoQuest Robotics Inc. announced that it has closed a $42 million series C to advance its robot technology that's targeting endoluminal and gastrointestinal minimally invasive procedures. Returning investors, CE Ventures Limited and McNair Interests, and new investor, Puma Venture Capital, led the round of funding.

"Our investors share our vision of leveraging robotics to redefine the possibilities in minimally invasive procedures," Kurt Azarbarzin, CEO of EndoQuest Robotics, says in a press release. Read more.

Digital Wildcatters announced $2.5M seed in December

Digital Wildcatters just raised $2.5 million in funding. Image courtesy

With $2.5 million in fresh funding, Digital Wildcatters is on its way to keep empowering the evolving energy workforce.

Digital Wildcatters, a Houston company that's providing a community for the next generation of energy professionals, has closed its seed plus funding round at $2.5 million. The round by energy industry veteran Chuck Yates, who also hosts his podcast "Chuck Yates Needs a Job" on the Digital Wildcatters' podcast network.

"Our industry's survival depends on recruiting the next generation of energy workers. We must adapt to their digital, content-rich world, as we currently lag behind, like a VHS tape in a Netflix world. Digital Wildcatters is our path to modernization," Yates says. Read more.

Here's what Houston startups scored investment in Q3 of 2023. Photo via Getty Images

Here's what Houston startups snagged fresh funding last quarter

Q3 in review

With Houston's business and innovation community firmly in its final leg of 2023, it's time to look back on funding from the previous quarter.

While last quarter revealed a decline in VC funding in line with the rest of the country, per PitchBook data, around 60 Houston-area companies secured venture funding in the third quarter. These deals spanned across angel and seed rounds all the way up to a monolith of a series C and unicorn status achievement.

According to InnovationMap reporting, 5 Houston-based companies announced VC funding between July and September. Here's a roundup of these second quarter deals — click on each story to read more.

Axiom's $350M series C round

Axiom Space CEO Michael Suffredini (right) has announced the company's series C round with support from Aljazira Capital, led by CEO Naif AlMesned. Photo courtesy of Axiom Space

Houston has another unicorn — a company valued at $1 billion or more — thanks to a recent round of funding.

Axiom Space released the news this week that it's closed its series C round of funding to the tune of $350 million. While the company didn't release its valuation, it confirmed to Bloomberg that it's over the $1 billion threshold. Axiom reports that, according to available data, it's now raised the second-most funding of any private space company in 2023 behind SpaceX.

Saudi Arabia-based Aljazira Capital and South Korea-based Boryung Co. led the round. To date, Axiom has raised over $505 million with $2.2 billion in customer contracts, according to the company.

“We are honored to team with investors like Aljazira Capital, Boryung and others, who are committed to realizing the Axiom Space vision,” Axiom Space CEO and president Michael Suffredini says in a news release. “Together, we are working to serve innovators in medicine, materials science, and on-orbit infrastructure who represent billions of dollars in demand over the coming decade. Read more.

VenoStent's $16M series A round

A Houston startup based out of the TMC Innovation Factory has announced funding and upcoming trials. Photo courtesy of TMC

Fueled by fresh funding in the bank, a medical device startup has announced upcoming trials.

VenoStent, Inc., a company developing an innovative tool to improve outcomes for hemodialysis patients, has closed $16 million in a series A round of financing. Two Charleston, South Carolina-based firms — Good Growth Capital and IAG Capital Partners — led the round.

The company also announced it received Investigational Device Exemption from the FDA for its United States clinical trial, SAVE-FistulaS.

“Our mission at VenoStent is to improve the quality and length of life of dialysis patients. On the heels of our very promising results in several preclinical studies and a 20-patient feasibility study that led to our Breakthrough Designation last year, this recent IDE approval is perhaps our biggest milestone to date," Tim Boire, CEO of VenoStent, says in a news release. "We now enter an exciting new epoch in our company’s development that we believe will ultimately result in FDA Approval and vastly improve the quality and length of life for patients." Read more.

CardioOne's $8 million seed round

CardioOne has fresh funding and new partners, resulting in a five-state expansion. Photo via Getty Images

With fresh funding, a Houston-based health tech platform that's less than a year old has grown its United States footprint.

CardioOne, which has created a cardiology care delivery enablement platform that serves independent cardiologists, has closed an $8 million seed round of funding and secured three new partnerships. Axios and Crunchbase report that the round has closed, and CardioOne confirms the funding and new partnerships in a press release.

The company has three new partnerships with independent cardiology clinics in New Jersey, Florida, and Pennsylvania, Cardiac Associates of New Jersey, Twin Hearts LLC, and Corrieius Cardiology. The trio joins existing partner practices in Texas and Maryland. Read more.

Industrial Daa Labs' $1.5M seed round

Industrial Data Labs announced the close of its $1.5 million seed round of funding. Photo via Getty Images

A Houston startup that's on a mission to transform and expedite data processing for its industrial clients has raised seed funding.

Industrial Data Labs announced this week that it's closed a $1.5 million seed round of funding. The company has created an applied artificial intelligence technology for the pipe, valve, fitting, and flange, or PVF, industry's inside sales team. The terms of the seed round were not disclosed.

"Our groundbreaking AI-Powered Inside Sales Copilot is transforming the way inside sales teams operate in the PVF industry," Marty Dytrych, co-founder and CEO of Industrial Data Labs, says in a news release. "By embedding our solution into existing BOM and MRO workflows, we empower teams to achieve unmatched efficiency, accuracy, and sales performance.” Read more.

Nanotech's oversubscribed funding round

NanoTech closed an oversubscribed round of funding, the company announced this week. Photo courtesy of NanoTech

A Houston startup that has developed an innovative coating material that can reduce energy consumption has raised fresh funding for its cross-country expansion.

NanoTech Inc. announced its latest funding news — an oversubscribed funding round that brings onboard a handful of new investors. The details of the round were not disclosed, but NanoTech did release that the round included participation from three institutional investors, two corporate-strategic investors, and seven family offices. These entities join initial investor, Austin-based Ecliptic Capital.

NanoTech's flagship product is a waterproof thermal coating, called the Nano Shield Cool Roof Coat, which began rolling out across the country this year. Not only does the product reduce energy costs for the building owner, but it reduces emissions as well. Read more.

It's not quite of strong of a start for Houston startups raising venture capital funding compared to last year. Photo via Getty Images

Here's what Houston startups have raised in funding so far this year

money tracker

While Houston startups saw a busy first quarter of 2023 — including IPOs in the space and biotech arenas — funding activity fell somewhat flat.

According to InnovationMap reporting, five startups have raised funding this year so far — which is less than half of the number of deals at the same time last year. Last year in the first quarter, 11 startups announced funding deals to the tune of $140 million. This year, startups raised around $106 million across five deals.

Tech-enabled manufacturing startup based in Houston secures $42M in growth financing

MacroFab has secured fresh investment to the tune of $42 million. Photo via macrofab.com

A Houston company has nearly doubled its total raised with its latest funding round.

MacroFab, a Houston-based electronics manufacturing platform, has announced $42 million in new growth capital led by Foundry and joined by BMW i Ventures, as well as existing investors Edison Partners and ATX Venture Partners. The platform was first launched by Misha Govshteyn and Chris Church in 2015.

“Given MacroFab’s compelling solutions to electronics manufacturing challenges and Foundry’s successful history with parallel companies, our investment is a perfect fit," Foundry Partner Seth Levine says in a news release. "This is a unique opportunity to be part of next generation cloud manufacturing and we’re excited to be joining forces with Misha and his team." Read the full story.

Houston e-commerce company raises another $40M round to support growth

P97 Networks has again raised $40 million to support its growth. Photo via Getty Images

For the second time in just over a year, a Houston business that provides mobile commerce and digital marketing to the mobility and fuel industries has raised $40 million.

P97 Networks, which has developed a cloud-based mobile commerce platform that helps brands securely do business with customers, announced that it has closed its series C round at $40 million. The equity financing round was led by Portage and included participation from existing investors. The fresh funding will go to support growth strategy.

"In this highly connected world, retail brands are looking for new ways to increase consumer engagement — the power of network effects in the digital world will be a key contributor to revenue growth and margins," says Donald Frieden, CEO of P97 Networks, in a news release. "With consumers of all ages further adopting mobile payment solutions, we are proud to have built the leading connected commerce and digital marketing platform for the convenience retail, energy marketing, and transportation industry." Read the full story.

Houston med device startup raises $18M, prepares to hire

BiVACOR has received fresh funding from its investors to further develop its artificial heart. Photo courtesy of BiVACOR

A Houston medical device company that is developing an artificial heart announced it has received investment funding to the tune of $18 million.

BiVACOR's investment round was led by Boston-based Cormorant Asset Management and Australia's OneVentures's Healthcare Fund III. According to the company, the funding will be deployed to continue research and development, hiring executives, and support the path to first in human trials.

“We are extremely grateful for the ongoing support from our core investors," says Thomas Vassiliades, who was named CEO of BiVACOR last year, in a news release. "This additional commitment further validates our technology and the need for improved options to treat end-stage biventricular heart failure." Read the full article.

Houston health tech company closes $3M series A

Prana Thoracic, an innovative startup in the lung cancer diagnostics space, has raised its series A round of investment. Photo via LinkedIn

It's been just under six months since the launch of Prana Thoracic, a Houston health tech startup tackling lung cancer diagnostics, and the company has already secured its next round of investment funding.

Prana Thoracic, a medical device company developing a tool for early interception of lung cancer, announced last week that it closed a $3 million series A financing round led by Florida-based New World Angels with participation from Johnson & Johnson Innovation – JJDC, Inc., Texas Medical Center Venture Fund, and the University City Science Center’s Phase 1 Ventures.

In August, the company received a $3 million award from the Cancer Prevention & Research Institute of Texas. All of Prana Thoracic's funding is being used to develop the unique diagnostic product and the company's path to first-in-human clinical studies.

“Our technology provides a definitive answer to patients with lung nodules and allows physicians to intervene earlier in the lung cancer patient’s journey,” says Joanna Nathan, CEO, and co-founder of Prana, in a news release. “Our team is grateful to have the support of our investors and excited to leverage this financing to accelerate our technology to the bedside.” Read the full story.

Houston climate tech startup closes $3M seed led by Shell

DexMat, a Houston-based materials science startup with tech originating at Rice University, has raised $3 million. Image via Getty Images

A material science startup with technology originating at Rice University has announced it has closed its seed round of funding.

DexMat raised $3 million in funding in a round led by Shell Ventures with participation from Overture Ventures, Climate Avengers and several individuals. The company transforms hydrocarbons, renewable fuels, and captured carbon into its flagship product Galvorn.

“DexMat presents an opportunity to capture methane, an abundant and inexpensive resource, and use it to replace materials such as steel, aluminum, and copper with a more sustainable option. We are excited to be part of DexMat’s journey going forward and to realize their ambitions,” says Aimee LaFleur, investment principal at Shell, in a news release.Read the full story.

According to a new report, Houston is one of the top cities for funding for sustainability companies. Photo via Getty Images

Houston ranked a top market for attracting funding for sustainability-focused startups

by the numbers

From a financial standpoint, Houston appears to be a sustainable environment for sustainability-focused startups.

An analysis by PromoLeaf, a retailer of sustainable promotional products, finds that Houston ranks fourth among U.S. cities for the average funding raised by locally based startups in the sustainability sector, according to Crunchbase data.

Per the report, the Bayou City attracts $150.7 million in sustainability funding for startups. Ahead of Houston are Salt Lake City with $204.5 million; Santa Monica, California, with $154.3 million; and Fremont, California, with $153.4 million.

PromoLeaf’s analysis features cities where at least 20 companies are focused on sustainability.

The analysis indicates Houston has 20.6 sustainability startups per 100,000 residents. Ranking first in that regard is Boulder, Colorado (115 per 100,000 residents).

While Houston trails Boulder by a long distance, it fares well among the Texas cities in the analysis:

  1. Austin, 26.2 sustainability startups per 100,000 residents
  2. Houston, 20.6 sustainability startups per 100,000 residents
  3. Midland, 18.8 sustainability startups per 100,000 residents
  4. Plano, 11.9 sustainability startups per 100,000 residents
  5. Dallas, 11 sustainability startups per 100,000 residents
  6. Fort Worth, 5.3 sustainability startups per 100,000 residents
  7. San Antonio, 5.2 sustainability startups per 100,000 residents

PromoLeaf says more than 21,600 sustainability startups operate in the U.S. They’re in the renewable energy, recycling and pollution control, environmental engineering, green consumer goods, and environmental consulting industries.

The analysis shows Houston has:

  • 13.7 renewable energy startups per 100,000 residents
  • 5.8 recycling and pollution control startups per 100,000 residents
  • 3.5 environmental engineering startups per 100,000 residents
  • 2.9 environmental consulting startups per 100,000 residents
  • 0.70 green consumer goods startups per 100,000 residents

According to the Greater Houston Partnership, renewable energy startups leading Houston’s energy transformation include Energy Transition Ventures, Fysikes Biosolutions, Ionada, Katz Water Technologies, Pressure Corp., and Renewell Energy.

“A dynamic business climate combined with growth in venture capital funding in Houston has created fertile ground for companies of all stages aiming to power our world through the global energy transition,” the partnership says. “As the Energy Capital of the World, Houston has become a hub for startups and venture capital firms investing in the region’s energy future.”

Outside the energy sector, Houston startups like Trendy Seconds also are making their mark in sustainability. The company runs an online marketplace where women can find preowned clothing or shop for new clothing from sustainable brands.

“Our ultimate goal is to make responsible consumption super easy,” Maria Burgos, founder of Trendy Seconds, told InnovationMap last year.

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Autonomous cab company launches Houston pilot program for wheelchair-accessible rides

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A California company with autonomous cabs has announced a new pilot program in partnership with a provider of wheelchairs and mobility solutions.

Cruise has teamed up with Numotion for a six-month wheelchair-accessible vehicle (WAV) pilot program in Houston, offering free transportation for qualifying Numotion customers, according to the companies. The program will operate in over 90 Houston-area ZIP codes.

“Numotion is excited to partner with Cruise to offer a seamless and convenient solution for wheelchair users in the Houston area. By providing transportation to and from repair appointments, we're alleviating a significant stressor and providing a way for our customers to receive their service and repair faster,” says Mike Swinford, CEO of Numotion, in a news release. “We're constantly striving to innovate and improve the lives of our customers, and this collaboration demonstrates our ongoing commitment to providing beneficial customer experiences."

Cruise entered the Texas market last year, with Houston services launching in October 2023 before the company put all operations on pause following a California crash. This is the first Texas announcement for Cruise since the pause.

"Accessibility is core to our mission at Cruise. This pilot program with Numotion is doing more than providing accessible rides – it’s about empowering people in the community with greater mobility and independence, while also building learnings to better our service in the future," says Craig Glidden, president and chief administrative officer at Cruise about the new pilot.

Looking back: Top 5 most-read Houston sports tech stories of 2024

year in review

Editor's note: As the year comes to a close, InnovationMap is looking back at the year's top stories in Houston innovation. Houston is a city primed for sports tech innovation — with its collection of major sports teams, vibrant population, and tech workforce. Here are five sports tech news stories that stood out to readers this year — be sure to click through to read the full story.

10 sports tech startups named to Houston-based hybrid accelerator

Introducing the 10 startups participating in the Spring 2024 cohort of the DivInc Sports Tech Accelerator, a hybrid program based in the Ion. Photo via DivInc.com

DivInc has named its latest sports tech-focused cohort of its hybrid accelerator that is housed out of the Ion.

The Sports Tech Accelerator has selected the 10 companies — with technology across human performance, fan experience, and more — for its 13th cohort to participate in the 12-week hybrid program this month and through July.

The program receives support from underdog venture team, Women In Sports Tech, The Collectiv, and HTX Sports Tech, with partners Bank of America, J.P. Morgan Chase & Co., Gunderson Dettmer, Brown Advisory, Ion, and Mercury. Continue reading.

High-tech virtual racing experience to rev up in Houston

Houston is getting 16 racing simulators, each equipped with full motion systems and immersive, 180-degree panoramic displays. Photo by Dylan McEwan

Come next year, some high-speed and high-tech race simulators will be added to one of Houston's growing districts.

Velocity - Sim Racing Lounge, described in press materials as Houston’s first premium simulation racing experience, is slated to open in early 2025 at 2110 Edwards St.Velocity will bring sim racing to Houston through 16 racing simulators, each equipped with full motion systems and immersive, 180-degree panoramic displays. The goal is provide customers with a truly authentic, virtual driving experience.

Customers will have the ability to virtually drive sports cars from iconic brands like Porsche and Lamborghini and race on world famous tracks, including the Circuit of the Americas, Laguna Seca, and the Silverstone Circuit. Classic roads, such as California’s Pacific Coast Highway, provide a more leisurely alternative to driving flat out. Continue reading.

Rice University announces partnership with Houston sports tech startup to enhance student athletics

Rice University's athletic programs will be supported by Houston startup BeOne Sports' technology. Photo courtesy of Rice University

Rice University — in an effort to enhance athletics and research-driven innovation — has formed a partnership with a startup founded by its alumni.

BeOne Sports, a sports performance technology company developed a platform for mobile motion-capture AI and advanced data analytics, will integrate its technology within Rice's sports medicine and rehabilitation programs.

“This partnership aligns perfectly with Rice University’s mission to harness innovation for the betterment of our community,” Rice President Reginald DesRoches says in a news release. “By integrating cutting-edge technology from BeOne Sports with our already world-class athletic and academic programs, we are providing our student athletes with the tools they need to excel both on the field and in life. This collaboration is a testament to Rice’s commitment to leading through innovation and offering unparalleled opportunities for our students.” Continue reading.

Diversity-focused sports tech accelerator opens applications to Houston innovators for the first time

Calling all sports tech startups founded by Black or Hispanic innovators. Photo via Getty Images

A global organization has announced it's opening applications to its equity-focused sports tech accelerator to Houston founders for the first time.

Thanks to a collaboration with Impact Hub and Black Ambition, the adidas Community Lab has expanded its footprint and is now accepting applicants from new markets, including Houston, Toronto, Los Angeles, Atlanta, and New York, for its 2024-2025 cohort.

The initiative, which has been running for three years, has a goal of supporting Black and Latino/a/e founders with mentorship, pitch training, event programming, and networking. The eight-month program also has $75,000 in grant funding to dole out to participants as well. Continue reading.

Houston sports tech startup aims to optimize unsold resale ticket market with new platform

Looking to score the best deal on your next game ticket? A new Houston-founded app promises to revolutionize the resale market. Photo via Getty Images

Online platforms have long simplified the process of buying, selling, and trading event tickets. But what happens when your tickets don’t sell or when you’re stuck with costly season tickets you can’t use? You might end up giving them away or leaving them unused, leading to a financial loss either way.

This is the challenge that Houstonian Jerin Varkey is willing to address with Offer Approved, a new platform that empowers sellers and buyers, guaranteeing that no seat goes unused.

The idea took root around two years ago when Varkey, a passionate sports fan and season ticket holder, faced a new challenge. After becoming a parent, he found himself unable to attend every game. Frustrated with traditional resale platforms, he quickly realized that high fees and limited time made it difficult to sell all his tickets, causing him to lose money each time. Continue reading.