4 fast-growing Houston tech companies secure spots on Deloitte list

big wins

These are the four fastest-growing tech companies in Houston, according to Deloitte. Photo by Shobeir Ansar/Getty Images

Deloitte’s annual North America Technology Fast 500 list includes four Houston companies this year — all boasting of significant growth.

For Houston, Direct Digital Holdings, Inc. took the highest-ranking spot at No. 101 (up from 108 previous year) with 1,184 percent growth. NatGas Hub LLC (No. 286, 407 percent growth), Liongard (No. 437, 246 percent growth), and Stratus Medical LLC (No. 483, 212 percent growth) also made the list, which is an annual ranking of the fastest-growing North American companies in technology, energy tech sectors, telecommunications, life sciences, media, and fintech.

"Houston continues to demonstrate its prowess in fostering growth and technological advancement and I’m incredibly proud to see some of our local companies making significant strides and earning their well-deserved spots on the 2024 Deloitte Technology Fast 500 list,” Houston managing partner at Deloitte Melinda Yee says in a news release.

Award winners were selected based on fiscal year revenue growth from 2019 to 2022.

The companies achieved revenue growth ranging from 201 percent to 153,625 percent over the three-year time frame with an average growth rate of 1,981 percent and a median growth rate of 460 percent, according to a news release. Texas accounts for 6 percent of the winning companies with 73 percent of the companies from Texas are in the software sector.

“These companies exemplify the entrepreneurial spirit and innovative mindset that define Houston's dynamic business ecosystem,” Yee adds.

In 2023, the Houston representation looked similar. Direct Digital Holdings again topped the Houston rankings at No. 108, with Liongard, NatGasHub.com, and P97 Networks also showing substantial growth. As a state, Texas had 30 companies that made the list of the 541 ranked. In 2022, just one Houston company was recognized, as at No. 372 Onit reported revenue increase of 369 percent.

Biopharmaceutical company TG Therapeutics, Inc. was the No.1 spot in 2024 with a growth rate of 153,625 percent from 2020 to 2023. See the full list here.
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Four Houston companies ranked on Deloitte's annual list, but none were able to crack the top 100. Photo via Getty Images

Annual report ranks 4 Houston tech companies on list of fasting growing businesses

trending up

Deloitte just unveiled the fastest-growing technology companies in North America — and four businesses from Houston made the cut.

For the 29th year, 2023 Technology Fast 500 ranked top tech, media, telecommunications, life sciences, and energy technology companies based on fiscal year revenue growth from 2019 to 2022. While no Houston business was able to break into the top 100, four did make the cut for this year's list.

“It is great to see Houston represented alongside established technology hubs on this year’s Fast 500 list,” Amy Chronis, vice chair, US Energy and Chemicals Leader and Houston managing partner at Deloitte, says in a statement. “Houston is planting seeds for future innovation, and the companies named to this year’s list confirm our city’s value proposition as an innovative community. We look forward to this growth continuing in the future and extend our congratulations to this year’s Houston winners.”

The four Houston companies that make the 2023 list are:

  • Direct Digital Holdings at No. 108 with 1,325 percent growth
  • Liongard at No. 208 with 680 percent growth
  • NatGasHub.com at No. 356 with 364 percent growth
  • P97 Networks at No. 506 with 225 percent growth

Thirty Texas companies made the list of the 541 ranked, making it the fourth most concentrated hub on the list behind the Bay Area, Tri-State Area, and New England. The companies on the list reported a revenue growth ranging from 201 percent to 222,189 percent over the three-year time frame from 2019 to 2022. The average growth rate was 1,934 percent and a median growth rate of 497 percent.

“Each year, we look forward to reviewing the progress and innovations of our Technology Fast 500 winners," Paul Silverglate, vice chair, Deloitte LLP and U.S. technology sector leader, says in the release. "This year is especially celebratory as we expand the number of winners to better represent just how many companies are developing new ideas to progress our society and the world, especially during a slow economy. While software and services and life sciences continue to dominate the top 10, we are encouraged to see other categories making their mark."

Software dominated the industry breakdown with 57 percent of the companies working in that field. However, the top company for 2023 was Vir Biotechnology Inc., a life science company that developed a COVID-19 treatment. Vir was also the top company in 2022.

Last year, only one Houston company made the list. At No. 372 Onit reported a revenue increase of 369 percent. The company also made the 2021 list, along with Graylog and Enercross.

Meet Michelle Accardi, the new CEO of Liongard. Photo courtesy of Liongard

Houston SaaS startup names new CEO

c-suite switchup

A Houston startup founder is transitioning from CEO to make room for a new leader.

Liongard, a software-as-a-service startup with a Managed Service Providers platform, has named Michelle Accardi as CEO, effective April 17. Joe Alapat, co-founder and CEO, will transition to CTO to better lead tech development of the platform, which provides customers with compliance, cybersecurity risk mitigation, and more.

“Now is the right time for Liongard to transform for the long term as we welcome a new member to our executive leadership team,” Alapat says in a news release. “Michelle’s addition will help take Liongard to the next level and accelerate our growth as we address the evolving needs of the industry. This new role allows me to focus on driving Liongard’s innovation forward and helping our MSP partners navigate the modern business landscape.”

Accardi has over 20 years of experience within MSPs and technology companies. She will oversee growth of the company and its product portfolio.

“The Liongard team has accomplished much in its first few years, and that’s a testament to the founding vision and hard work of the entire organization,” Accardi said. “With Liongard in a strong market leadership position, there is a unique opportunity to accelerate growth. Joe and team have built a dynamic company culture and robust technical foundation and I am looking forward to partnering with him to build on the company’s success.”

Most recently as CEO of Logically, Accardi also served as president and chief revenue officer of Star2Star.

“We are excited to welcome Michelle to the team at Liongard,” says Carter Griffin, Liongard board member and general partner at Updata Partners, an investor of Liongard. “We believe that Michelle’s leadership experience and excellent track record will ensure Liongard continues to perform at a very high level.”

Accardi joins the team following a $10 million round of funding that Liongard, which was founded in 2015, secured last year. The startup has raised over $30 million in investment funding to date.

Joe Alapat has transitioned to CTO of Houston-based Liongard. Photo courtesy of Liongard

The 2022 Houston Innovation Awards revealed its big winners across 11 categories. Photos courtesy

InnovationMap, HX reveal winners from 2022 Houston Innovation Awards Gala

and the winners are...

That's a wrap on the Houston Innovation Awards Gala. InnovationMap and Houston Exponential announced the winners of the 2022 awards that celebrated Houston's booming innovation ecosystem, and 11 startups and individuals walked away with the awards.

The event, held November 9 at the Ion, honored all 43 finalists as well as Trailblazer Award recipient, Blair Garrou, managing director and founder of Houston-based venture capital firm Mercury. Click here to read about all the finalists.

Eight judges evaluated over 150 companies and individuals across 11 categories for the 2022 Houston Innovation Awards. This year's judges included Carolyn Rodz, founder and CEO of Hello Alice; Wogbe Ofori, founder of Wrx Companies; Scott Gale, executive director of Halliburton Labs; Ashley Danna, senior manager of regional economic development of Greater Houston Partnership; Kelly McCormick, professor at the University of Houston; Paul Cherukuri, vice president of innovation at Rice University; Lawson Gow, CEO of Houston Exponential; and Natalie Harms, editor of InnovationMap.

Without further adieu, here the winners from the 2022 Houston Innovation Awards.

BIPOC-Founded Business: Steradian Technologies

The winner for the BIPOC-Founded Business category, honoring an innovative company founded or co-founded by BIPOC representation, is: Steradian Technologies, a health tech startup that uses deep-photonics technology to diagnose respiratory diseases in seconds, all for the price of a latte.

Female-Founded Business: Sesh Coworking

The winner for the Female-Founded Business category, honoring an innovative company founded or co-founded by a woman, is: Sesh Coworking, a women and genderqueer inclusive coworking and community.

Hardtech Business: Fluence Analytics

The winner for the Hardtech Business category, honoring an innovative company developing and commercializing a physical technology across life science, energy, space, and beyond, is: Fluence Analytics, real-time analytics solution that optimizes processes and provides novel insights into material properties that enable customers to increase yields, improve product quality, and reduce costs.

B2B Software Business: Liongard

The winner for the B2B Software Business category, honoring an innovative company developing and programming a digital solution to impact the business sector, is: Liongard — software company that unlocks the intelligence hidden deep within IT systems to give MSPs an operational advantage that delivers both higher profits and an exceptional customer experience.

Green Impact Business: Cemvita Factory

The winner for the Green Impact Business category, honoring an innovative company providing a solution within renewables, climatetech, clean energy, alternative materials, and beyond, is: Cemvita Factory, a biotech company that uses a sustainable, economical, nature-inspired approach to empower companies with sustainable products and environmental technologies to decrease their carbon footprint, reverse climate change, and create a brighter future for the planet.

Smart City Business: Sensytec

The winner for the Smart City Business category, honoring an innovative company providing a tech solution within transportation, infrastructure, data, and beyond, is: Sensytec, an IoT Solutions platform that expedites and enhances concrete construction operations.

New to Hou Business: Venus Aerospace

The winner for the New to Hou Business category, honoring an innovative company, accelerator, or investor that has relocated its primary operations to Houston within the past three years, is: Venus Aerospace, the creator of a hypersonic spaceplane capable of one-hour global travel.

DEI Champion: Loretta Williams Gurnell

The winner for the DEI Champion category, honoring an individual who is leading impactful diversity, equity, and inclusion initiatives and progress within Houston and their organization, is: Loretta Williams Gurnell, founder of SUPERGirls SHINE Foundation.

Mentor of the Year: Kara Branch

The winner for the Mentor of the Year category, honoring an individual who dedicates their time and expertise to guide and support to budding entrepreneurs, is: Kara Branch, founder and CEO of Black Girls Do Engineer Corp. and developer and manager at Intel Corp.

Investor of the Year: John "JR" Reale

The winner for the Investor of the Year category, honoring an individual who is leading venture capital or angel investing, is: John (JR) Reale, managing director of Integr8d Capital and venture lead of the Texas Medical Center Venture Fund

People's Choice (Startup of the Year): Milkify

The winner for the People's Choice: Startup of the Year category, selected via an interactive voting portal during of the event, is: Milkify — creator of patent-pending process to freeze-dry breast milk into a powder that is easy to use and transport and lasts for three years on the shelf.

Want to work for one of the top startups in Houston? These ones are hiring. Photo via Getty Images

Here's which of the 2022 Houston Innovation Awards finalists are hiring

Growing biz

After scouring Houston for the best of the Houston innovation ecosystem and evaluating dozens of companies, InnovationMap and Houston Exponential have announced the finalists that will be honored at the 2022 Houston Innovation Awards. But which of these companies are growing their teams?

Turns out, almost all of them have open positions — some planning to double their teams over the next year. In fact, the 30 companies that make up the cohort of finalists are looking for over 150 new employees — some have these positions open now and others are seeking these new team members over the next 12 months.

Click here to get your tickets to the 2022 Houston Innovation Awards Gala.
Let's look at how many new hires these top startups are looking for.

Double-digit growth

When it comes to the awards finalists looking to scale their team by 10 or more new employees, five companies are looking to enter this type of hiring spree. Blue People, a finalist in the BIPOC-Founded Category, is hiring 25 new employees. The company was founded in 2015 in Mexico and relocated its primary operations to Houston in 2020. Blue People, which develops software innovation for tis clients, has over 150 employees — seven of whom, including C-level executives, are based in Houston. Some of the company's new hires will be based in town.

Another company that's also relocated its operations to Houston recently and is growing its team significantly is Venus Aerospace, creator of a hypersonic spaceplane capable of one-hour global travel. Venus, a finalist in the New to Hou category, currently has a team of 60 people and is based out of the Houston Spaceport. The company is hiring an additional 20 people.

Fast-growing B2B Software finalist Solidatus — a data management software solution — has 16 open positions, including five in the US. According to the company, they hope to have reached a headcount of about 140 within the next 12 months — up from their current 110 employees.

NanoTech, a Green Impact finalist and materials science company, is looking to nearly double its team of 20 to add an additional 15 new employees.

Competing in the People's Choice category, LevelField Financial — a financial service platform that serves customers interested in the digital asset class — is looking to hire 10 people to join its team of 19 employees.

Steady as she grows

Six Houston Innovation Awards finalists are in the process of adding more than a few new team members. Rivalry Technologies, a finalist in the B2B Software and People's Choice categories, is hiring seven people to join its team of 13. The company created a mobile ordering solution — called sEATz — for arenas and recently rebranded and expanded to provide the technology to other industries.

Founded in New Orleans and relocated to the Houston area last year, Fluence Analytics has a total of 30 employees and is looking to hire an additional six new team members. The company, which created a real-time analytics solution for the chemicals industry, is also a finalist in two categories: Hardtech and New to Hou.

Biotech company Cemvita Factory — both a Green Impact and People's choice finalist — has already scaled to employ 75 team members. Now, the company is hiring an additional five more.

Encina Development Group — circular chemicals company for the consumer products and packaging, pharmaceuticals, construction, and other industries — is also looking to add five more team members to its 30 employees. The company is a finalist in the Green Impact category.

Another Green Impact finalist is IncentiFind, a database for green building incentives that's transforming real estate, is hiring five new employees to almost double their team of eight.

INGU, a New to Hou finalist, is a pipeline inspection solution to achieve Net Zero and ESG compliance for the water and oil and gas pipeline infrastructure. The company is seeking five new team members to join its 19 employees based in Houston and Canada.

Seeking selectively

The following awards finalists are looking to grow their teams by just a handful or so — between one and four — of new hires:

Find out which of these employers take home the win at the November 9 gala at the Ion. Click here to RSVP.

This week's roundup of Houston innovators includes Sam Dike of Rice Management Company, Barbara Burger of Greentown Labs, and Joe Alapat of Liongard. Courtesy photos

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 clean energy to software — recently making headlines in Houston innovation.


Sam Dike, manager of strategic initiatives at Rice Management Company

Sam Dike of Rice Management Company joins the Houston Innovators Podcast to discuss the past, present, and future of Houston's rising Ion Innovation District. Photo via rice.edu

A few years ago, Rice Management Company saw an opportunity a few years back to make an investment in Houston's nascent innovation and tech ecosystem, and announced the plans for the Ion, a 266,000-square-foot innovation hub in an renovated and rehabilitated Sears.

"In some ways innovation is not necessarily about creating something completely new — it's oftentimes building upon something that exists and making it better," says Sam Dike, manager of strategic initiatives at Rice Management Company, on the most recent episode of the Houston Innovators Podcast. "I think that's what we've done with the building itself.

"We took something that had really strong bones and a strong identity here in Houston," he continues, "and we did something that's often atypical in Houston and preserved and repurposed it — not an easy logistical or financial decision to make, but we believed it was the best for Houston and for the project." Click here to read more and stream the podcast.

Barbara Burger, board member at Greentown Labs

Barbara Burger, former president of Chevron Technology Ventures, has been named to the Greentown Labs board of directors. Photo courtesy of CTV

Greentown Labs announced that it has appointed Barbara J. Burger — former vice president of innovation and president of Chevron Technology Ventures, Chevron's startup investment arm — to its board of directors.

In her previous role at Chevron, she spearheaded the energy company's support of Greentown Labs since 2013 and the opening of its Houston incubator. After announcing her retirement in December, she has continued being active at Greentown and hosts semi-annual Women of Greentown Houston dinners.

“I am honored and excited to join the Greentown Labs Board of Directors,” says Burger in the release. “Combatting the effects of climate change requires bringing a wide range of innovative solutions to scale. There is work for incumbents and startups alike in this enormous challenge that WE all face. Greentown Labs plays an essential role in providing facilities, tools, programs, and an inclusive community to nurture and grow innovation that matters.” Click here to continue reading.

Joe Alapat, co-founder and CEO of Liongard

Houston IT company forms new partnership

Houston-based Liongard has fresh funding to work with. Courtesy of Liongard

Liongard, an IT software provider, has raised an additional $10 million in funding, according to a news release, will go toward providing the best customer service for Liongard's growing customer base.

The technology is providing managed service providers, or MSPs, improved visibility across the IT stack and an optimized user experience.

“Since working with our first MSP partners, we’ve seen time and again the power of visibility into IT data, reducing the time they spend researching customer issues and allowing them to respond faster than their peers,” says Joe Alapat, CEO and co-founder of Liongard, in the release. “This investment enables us to continue to achieve our vision of delivering visibility into each element of the IT stack.” Click here to continue reading.

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Houston professor awarded $2.6M grant for retina, neurological research

seeing green

University of Houston College of Optometry Professor John O’Brien has received a $2.6 million grant from the National Eye Institute to continue his research on the retina and neurological functions.

O’Brien is considered a leading expert in retinal neuroscience with more than 20 years of research in the field. The new funding will allow O’Brien and his team to continue to study the dense assembly of proteins associated with electrical synapses, or gap junctions, in the retina.

Gap junctions transfer electrical signals between neurons. And the plasticity of gap junctions changes the strength of a synapse, in turn changing how visual information is processed. Previous research has shown that reduced functions of electrical synapses could be linked to autism, while their hyperfunction may lead to seizures.

“The research we propose will significantly advance our understanding of the molecular complexes that control the function of electrical synapses,” O’Brien said in a news release.

The team at UH will work to identify the proteins and examine how they impact electrical synapses. It is particularly interested in the Connexin 36, or Cx36, protein. According to O’Brien, phosphorylation of Cx36, a short-term chemical modification of the protein, serves as a key driver of plasticity. And the protein has been linked to refractive error development, which is one of the largest vision problems in the world today.

Additionally, OBrien’s research has shown that plasticity is essential for all-day vision, allowing the retina to adjust sensitivity and sharpen images. He has also built a catalog of the core set of proteins surrounding electrical synapses that are conserved across species. His research has been funded by the NEI since 2000.

5 minority-founded Houston startups shine as Innovation Awards finalists

Meet the Finalists

Houston is one of the most diverse cities in the nation, and that trend carries over into its innovation and startup ecosystem.

As part of the 2025 Houston Innovation Awards, our Minority-founded Businesses category will honor an innovative Houston startup founded or co-founded by BIPOC or LGBTQ+ representation.

Five minority-founded businesses have been named finalists for the 2025 award. The finalists, selected by our esteemed panel of judges, range from a wearable health tech device company to a clean chemical manufacturing business to a startup with a lunar mission.

Read more about these innovative businesses, their initiatives, and their inspirational founders below. Then join us at the Houston Innovation Awards on Nov. 13 at Greentown Labs, when the winner will be unveiled at our live awards ceremony.

Tickets are on now for this exclusive event celebrating all things Houston Innovation.

Capwell Services

Houston-based methane capture company Capwell Services works to eliminate vented oil and gas emissions economically for operators. According to the company, methane emissions are vented from most oil and gas facilities due to safety protocols, and operators are not able to capture the gas cost-effectively, leading operators to emit more than 14 million metric tons of methane per year in the US and Canada, equivalent to more than 400 million metric tons of CO2e per year. Founded in 2022, Capwell specializes in low and intermittent flow vents for methane capture.

The company began as a University of Pennsylvania senior design project led by current CEO Andrew Lane. It has since participated in programs with Greentown Labs and Rice Clean Energy Accelerator. The company moved to Houston in 2023 and raised a pre-seed round. It has also received federal funding from the DOE. Capwell is currently piloting its commercial unit with oil and gas operators.

Deep Anchor Solutions

Offshore energy consulting and design company Deep Anchor Solutions aims to help expedite the adoption of floating offshore energy infrastructure with its deeply embedded ring anchor (DERA) technology. According to the company, its patented DERA system can be installed quietly without heavy-lift vessels, reducing anchor-related costs by up to 75 percent and lifecycle CO2 emissions by up to 80 percent.

The company was founded in 2023 by current CEO Junho Lee and CTO Charles Aubeny. Lee earned his Ph.D. in geotechnical engineering from Texas A&M University, where Aubeny is a professor of civil and environmental engineering. The company has not raised VC funding, but has participated in numerous accelerators and incubators, including Greentown Labs, MassChallenge, EnergyTechNexus LiftOff and others. Lee is an Activate 2025 fellow.

Mars Materials

Clean chemical manufacturing business Mars Materials is working to convert captured carbon into resources, such as carbon fiber and wastewater treatment chemicals. The company develops and produces its drop-in chemical products in Houston and uses an in-licensed process for the National Renewable Energy Lab to produce acrylonitrile, which is used to produce plastics, synthetic fibers and rubbers. The company reports that it plans to open its first commercial plant in the next 18 months.

Founded in 2019 by CEO Aaron Fitzgerald, CTO Kristian Gubsch and lead engineer Trey Sheridan, the company has raised just under $1 million in capital and is backed by Bill Gates’ Breakthrough Energy, Shell, Black & Veatch and other organizations.

Torres Orbital Mining (TOM)

Space tech company Torres Orbital Mining aims to pioneer the sustainable extraction and processing of lunar regolith and designs and builds robotic systems for excavating, classifying, and delivering lunar material. The company aims to accelerate a permanent and ethical human presence on the Moon.

The company was founded this year by Luis Torres, a current MBA candidate at Rice Business.

Wellysis USA Inc.

Wellysis USA Inc. works to detect heart rhythm disorders with its continuous ECG/EKG monitor with AI reporting. Its S-Patch cardiac monitor is designed for extended testing periods of up to 14 days on a single battery charge. The device weighs only 9 grams, is waterproof and designed to be comfortable to wear, and is considered to have a high detection rate for arrhythmias. It is ideally suited for patient-centric clinical trials to help physicians make diagnoses faster, cheaper and more conveniently.

It was established in Houston in 2023 and participated in the JLABS SFF Program the same year. It closed a $12 million series B last year. It was founded by CEO Young Juhn, CTO Rick Kim, CFO JungSoo Kim and chief strategy officer JoongWoo Kim.

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The Houston Innovation Awards program is sponsored by Houston Community College, Houston Powder Coaters, FLIGHT by Yuengling, and more to be announced soon. For sponsorship opportunities, please contact sales@innovationmap.com.

The Ion taps John Reale for startup and investor role

new hire

The Ion has named John "JR" Reale as its director for startups and investor engagement.

In his new role, Reale, a longtime leader in Houston’s startup ecosystem, will work to strengthen the innovation district's founder and investor network.

"Here’s what I’ve come to believe: the Ion is not just a building, not just a real estate play, and not just another innovation district. COVID, remote work, and shifting market dynamics changed the rules. Key ingredients like co-working, events, and community, while impactful, are no longer enough on their own," Reale shared on a LinkedIn post announcing the move. "What’s needed are advantages ... We need to intentionally design a system that repeatedly delivers advantages so founders can pull forward their visions."

Reale previously served as executive in residence and venture partner at TMC Venture Fund and co-founded Station Houston. He also serves as managing director of Integr8d Capital. He's an investor and serves on the board of directors for a number of venture-backed companies, including Cart.com, Lionguard and others.

The Ion will host "Today Is Day One – A conversation with John (JR) Reale" to welcome Reale to the role on Tuesday, Oct. 21. Reale will be joined at the event by Heath Butler, partner at Mercury, to discuss their thoughts on shaping Houston's founders ecosystem, as well as the Ion’s Founder Advantage Platform.

"On top of this connected architecture, we will build product. That product will be the Founder Advantage Platform to remove friction, compress time, and compound outcomes," Reale continued on LinkedIn. "This is the system that will drive repeatable experiences, and naturally, make these journeys so much more fun."

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