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.

From Your Site Articles

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.

The 11 executives now will move on to national Entrepreneur Of The Year program. National winners will be named in November. Photos courtesy

Houston innovators recognized at annual regional entrepreneur competition

Meet the winners

Eleven Houston-based executives have been crowned regional winners in the Entrepreneur Of The Year program, run by professional services firm EY.

The 11 executives now will move on to national Entrepreneur Of The Year program. National winners will be named in November.

“Every year, we are completely blown away by the accomplishments of our Entrepreneur Of The Year Regional Award winners, and 2023 is no different,” AJ Jordan, director of the Entrepreneur Of The Year program for EY Americas, says in a news release. “They are change-makers and champions of business and community, and we are so proud to be honoring them. We can’t wait to see how these leaders will continue to improve lives and disrupt industries.”

Here are the 11 local winners from the program’s Gulf South region.

Steve Altemus, president and CEO of Intuitive Machines

Intuitive Machines, founded in 2013, is a publicly traded space exploration company. The company’s upcoming mission will send the first U.S. spacecraft to the moon since 1972 as well as the first-ever commercial lunar lander. Its Nova-C spacecraft will carry commercial and NASA payloads.

Earlier this year, a joint venture led by Intuitive Machines nabbed a contract valued at up to $719 million for work on NASA’s Joint Polar Satellite System. The company, which went public in February 2023, forecasts revenue of $174 million to $268 million this year.

“Steve’s visionary mindset and ability to assemble and inspire a talented team have been instrumental in our collective success,” the company says in a statement about the Entrepreneur Of The Year award. “He consistently fosters a culture of excellence, empowering our diverse group of engineers, scientists, and visionaries to pioneer groundbreaking solutions and deliver outstanding results.”

Gaurab Chakrabarti, co-founder and CEO of Solugen, and Sean Hunt, co-founder and CTO

Solugen, founded in 2016, makes and distributes specialty chemicals derived from feedstock. The startup is reportedly valued at more than $2 billion. To date, Solugen has raised $642.2 million, according to Crunchbase.

In naming Solugen one of the most innovative companies of 2022, Fast Company noted that the carbon-negative process embraced by Solugen and the startup’s “ability to sell flexible amounts of chemicals to companies looking to lower their own footprint have helped the company make inroads in a traditionally slow-moving industry.”

Daryl Dudum and Matthew Hadda, founders and co-CEOs of Specialty1 Partners

Specialty1 Partners, which launched in 2019, supplies business services to dental surgery practices. These services include HR, recruiting, payroll, accounting, operations, marketing, business development, compliance, IT, and legal.

In 2022, Specialty1 Partners appeared at No. 72 on the Inc. 5000 list with two-year revenue growth of 2,921 percent.

“Supporting our partners and helping them grow while continuing to build partnerships with industry-leading, innovative surgical specialists is what we focus on every day,” Dudum says in a 2022 news release. “It’s not just about growing our network — we are committed to helping our partner practices grow and succeed on their terms.”

Ludmila Golovine, president and CEO of MasterWord Services

MasterWord Services offers translation and interpretation in more than 400 languages for customers such as energy, health care, and tech companies. The woman-owned business was founded in 1993.

“I’m grateful to our exceptional team and to each of our translators and interpreters who every day live our mission of connecting people across language and culture,” Golovine says in a news release about the Entrepreneur Of The Year honor.

Roger Jenkins, president and CEO of Murphy Oil

Murphy Oil is involved in oil and natural gas exploration and production primarily onshore in the U.S. and Canada, and offshore along the Gulf of Mexico. The publicly traded Fortune 1000 company, founded in 1944, racked up revenue of nearly $4 billion in 2022.

“Over the years, the company has grown and evolved to become a leading independent energy company, with strategic assets around the world,” Murphy says on its website. “All the while, we have remained true to our mission — to challenge the norm, tap into our strong legacy, and use our foresight and financial discipline to deliver inspired energy solutions.

Mohammad Millwala, founder and CEO of DM Clinical Research

DM Clinical Research, founded in 2006, runs 13 sites for clinical trials. Its areas of specialty include vaccines, internal medicine, pediatrics, gastrointestinal, psychiatry, and women’s health.

“DM Clinical Research is in a period of rapid growth with multiple new study sites added over the last two years in addition to the quadrupling of our staff to over 500 employees,” Millwala says in a January 2023 news release. “We expect this transformational growth trajectory to continue for the foreseeable future, on the road to becoming the leading independent clinical research network in the nation.”

Mark Walker, co-founder, chairman and CEO of Direct Digital Holdings, and Keith Smith, co-founder and president

Publicly traded Direct Digital Holdings owns three operating companies that offer online platforms for advertising. Three years after its founding in 2018, the company became the ninth Black-owned business to go public in the U.S.

The company posted revenue of $88 million in 2022, up 131 percent from the previous year.

“Direct Digital Holdings’ success is rooted in the hard work and commitment we have long seen in taking advantage of advertising opportunities targeting underserved communities and [that] markets often overlook,” Smith says in a news release about the Entrepreneur Of The Year award.

Omair Tariq, co-founder and CEO of Cart.com

While technically headquartered in Austin, Houston-funded Cart.com's co-founder and CEO, Omair Tariq, also was a Gulf South winner in the Entrepreneur Of The Year program.

The e-commerce company moved its headquarters from Houston to Austin in 2021. However, Tariq remains in Houston. In May 2023, Tariq delivered the commencement address to MBA recipients from Rice University’s Jones Graduate School of Business, where he earned his MBA.

Cart.com, founded in 2020, offers software and services to thousands of online merchants. To date, the pre-IPO company has raised $421 million in funding, according to Crunchbase.

“We want to be the commerce-enablement infrastructure for the largest brands in the world,” Tariq told the Insider news website in 2022.

This week's roundup of Houston innovators includes Mark Walker of Direct Digital Holdings, Will Womble of Umbrage, and Steve Altemus of Intuitive Machines. Photos courtesy

3 Houston innovators to know this week

who's who

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

Mark Walker, CEO, co-founder and chairman of Direct Digital Holdings

This month, Mark Walker is celebrating his company's one year anniversary of going public — only the ninth Black-founded business to accomplish this feat on a U.S. stock exchange. Photo courtesy

Houston-based Direct Digital Holdings, an adtech platform, is celebrating one year after its IPO. Co-Founder Mark Walker shares on the Houston Innovators Platform how he took this experience in tech, advertising, and media to create his company's platform.

He also shared the story of how Direct Digital went public. Walker says the decision to IPO made the most sense for his company — though it wasn't an easy process. Direct Digital is only the ninth company founded by a Black entrepreneur to go public on a US stock exchange.

"If you think the process is hard — it actually is," Walker says on the journey to IPO. "We were a privately held company, and we knew we had a good growth trajectory and we looked a couple different options. We decided to go public in a very traditional way." Read more.

Steve Altemus, co-founder, president, and CEO of Intuitive Machines

Intuitive Machines listed on Nasdaq on February 14. Photo via intuitivemachines.com

Intuitive Machines, a space tech company based in Southeast Houston, announced that it has completed the transaction to merge with Inflection Point Acquisition Corp., a special purpose acquisition company traded on Nasdaq.

“We are excited to begin this new chapter as a publicly traded company,” says Steve Altemus, co-founder, president, and CEO of Intuitive Machines, in a news release. “Intuitive Machines is in a leading position to replace footprints with a foothold in the development of lunar space. With our launch into the public sphere through Inflection Point, we have reached new heights financially and opened the doors for even greater exploration and innovation for the progress of humanity.”

The transaction, which was originally announced in September, was approved by Inflection Point’s shareholders in a general meeting on February 8. As a result of the deal, the company will receive around $55 million of committed capital from an affiliate of its sponsor and company founders, the release states. Read more.

Will Womble, founder and CEO of Umbrage

Umbrage, a Houston-based developer of enterprise software, has been acquired. Photo via umbrage.com

Umbrage, founded in 2019, is proving once again that Space City is a software hub. Earlier this month, Founder Will Womble announced that Umbrage has been acquired by Bain & Company.

Umbrage creates custom software for companies by partnering with an internal technology team that makes the products. It’s a “teach a man to fish” method that has brought the company great success in creating software such as Shell’s TapUp app.

Bain & Company works with clients in 64 cities across 39 countries, meaning the global consultancy is positioned to bring Umbrage worldwide.

"Alongside Bain, we can deliver enhanced end-to-end solutions that will position our clients for success and to adapt during waves of disruptive emerging technologies," says CEO Womble in the release. Read more.

This month, Mark Walker is celebrating his company's one year anniversary of going public — only the ninth Black-founded business to accomplish this feat on a U.S. stock exchange. Photo courtesy

Houston founder shares how he's using tech to make digital media more effective and equitable

houston innovators podcast episode 173

After working in both sides of the advertising world, Mark Walker thought he could reimagine a platform that would be more efficient and equitable.

Walker co-founded his company, Direct Digital Holdings, an adtech platform, after serving in several roles — from an early hire at Houston digital media startup Questia to business development director at NRG Energy and COO of EBONY Media. He shares on the Houston Innovators Platform how he took this experience in tech, advertising, and media to create his company's platform.

"NRG Energy gave me a top-down view of the value chain, and Ebony gave me a bottoms-up view of the value chain of how media is purchased," Walker says on the show. "At Direct Digital Holdings, we help companies buy and sell media — and we leverage technology to do it. It's really the culmination of both of those experiences."

With over 30,000 publishers on its platform, Direct Digital makes it easier for its core customers — middle market companies looking to buy into the digital media ecosystem — to tap into these opportunities without the tech know-how they might otherwise need. Walker explains that at EBONY, he saw how small to midsize publications — especially the multicultural ones — were being left out on the ad selling side of the equation. The Direct Digital platform bridges the gap on each end.

Founded in 2018 in partnership with Keith Smith, who went through similar professional experiences, Direct Digital went public exactly one year ago after growing the company through strategic M&A activity. Walker says the decision to IPO made the most sense for his company — though it wasn't an easy process. Direct Digital is only the ninth company founded by a Black entrepreneur to go public on a US stock exchange.

Walker explains there were some risks involved, but the co-founders ultimately decided to shy away from adding in investors who might not have the same ideas for the company's future.

Direct Digital has been a Houston company from the star — despite the city not being home to a booming adtech ecosystem. Instead, Houston — with its collection of Fortune 500 companies and rich diversity — has allowed the business to stand out.

"If you look at and reflect on how our company has been built — from our board of directors to our leadership and management team — we're a majority minority organization all the way across the board," Walker says. "Diversity is very important to us. It's the lifeblood of our business — especially because we're serving publishers in those communities in big way. And moreso, we think you get the best product, thoughts, and ideas from a diverse workforce, and Houston fits right into that mold for us."

Walker shares more about his company's future, advice on IPO, and what all he's watching in adtech — from AI to streaming — on the podcast. Listen to the interview below — or wherever you stream your podcasts — and subscribe for weekly episodes.

Ad Placement 300x100

Ad Placement 300x600

CultureMap Emails are Awesome

Property Showcase

18 Houstonians land on Forbes world's billionaires list for 2025

World's Richest

The world’s richest people are wealthier now than they've ever been, and more billionaires have made it onto the 2025 World's Billionaires List than ever before, according to Forbes. This year, 18 Houston-based billionaires are among the richest people in the world, with hospitality honcho Tilman Fertitta leading as the richest Houstonian.

Fertitta, 67, ranked No. 220 overall with an estimated net worth of $11.3 billion, which steadily increased from his 2024 net worth of $9.4 billion.

In addition to owning the Houston Rockets, the busy billionaire owns Texas-based hospitality and entertainment corporation Landry's, and he authored a book about business leadership in 2019. He most recently was nominated as the new United States ambassador to Italy by President Donald Trump.

Ranking 248th overall is oil and gas chairmanRichard Kinder. Forbes estimates his net worth at $10.6 billion, up from $8.1 billion in 2024.

Kinder cofounded pipeline giant Kinder Morgan in 1997, and stepped down as CEO in 2015, though he still retains his seat as chairman of the board. The company is the largest energy infrastructure firm in the U.S., Forbes says, and it owns 79,000 miles of pipeline.

New to the 2025 list is Perry Homes executive chair Kathy Britton, whose company has built over 65,000 homes across the U.S., according to Forbes. Her late father, Bob Perry, founded Perry Homes in 1967. Britton ranked No. 1408 with an estimated net worth of $2.6 billion.

Mercedes-Benz mega-dealer Joe Agresti is another newbie to the list, ranking No. 2790 with a net worth of $1.1 billion. He owns Dream Motor Group with former football coach Nick Saban.

14 additional Houston-area billionaires that made Forbes 2025 world’s richest list are:

Houston pipeline heir Randa Duncan Williams: ranked No. 307 with an estimated net worth of $9.3 billion, up from $7.7 billion in 2024. Fellow pipeline heirs Dannine Avara and Milane Frantz tie for 311th nationally. Each has an estimated net worth of $9.2 billion, up from $7.6 billion. Scott Duncan ranks No. 329 with a $9 billion estimated net worth, up from $7.6 billion in 2024.
Houston oil tycoon Jeffery Hildebrand: ties for No. 411; $7.7 billion, down from $12.6 billion
Toyota mega-dealer Dan Friedkin: ties for No. 411; $7.7 billion, up from $6.4 billion
Houston Texans owner Janice McNair and family: No. 561, $6.2 billion, up from $5.6 billion
Energy exploration chief exec George Bishop: No. 717, $5 billion, up from $3.2 billion (based in The Woodlands)
Westlake Corporation co-owners Albert Chao, James Chao and their families:tied for No. 902, $4 billion, down from $4.9 billion
Hedge fund honcho John Arnold: No. 1266, $2.9 billion, down from $3.3 billion
Houston Astros owner Jim Crane: No. 1513, $2.4 billion, unchanged from 2024
Former Houston Rockets owner Leslie Alexander: tied for No. 1850, $1.9 billion, unchanged from 2024
Frontier Airlines chairman William Franke: No. 2623, $1.2 billion, down from $1.3 billion

Elsewhere in Texas, Austin-based billionaire Elon Musk topped Forbes' list as the world's richest person in 2025. The Tesla and SpaceX founder knocked French luxury goods magnate Bernard Arnault down to second place this year.

Forbes declared Musk the first person to reach the $300 billion status. His current net worth stands at $342 billion, which is a staggering $147 billion more than his 2024 net worth.

"It’s another record-breaking year for the world’s richest people, despite financial uncertainty for many and geopolitical tensions on the rise," said Forbes senior editor of wealth Chase Peterson-Withorn. "And, from Elon Musk to Howard Lutnick and the other billionaires taking over the U.S. government, they’re growing more and more powerful."

In Dallas-Fort Worth, Walmart heiress Alice Walton became the wealthiest woman in the world in 2025. Forbes declared Walton's net worth at $101 billion, which is $28.7 billion more than her 2024 net worth of $72.3 billion. She is now one of 15 individuals to claim 12-figure fortunes, also known as the "$100 Billion Club."

State-of-the-art innovation hub opens in Houston Energy Corridor

flagship facility

French multinational company Schneider Electric has opened a new 10,500-square-foot, state-of-the-art Energy Innovation Center in Houston.

The new facility is located in Houston’s Energy Corridor and is designed to “foster increased collaboration and technological advancements across the entire value chain,” according to a news release from the company. The new Houston location joins Schneider's existing innovation hubs in Paris, Singapore and Bangalore.

The venue will serve as a training center for process control engineers, production superintendents, manufacturing managers, technical leads and plant operations personnel. It can simulate various real-world scenarios in refineries, combined-cycle power plants, ethylene plants, recovery boilers and chemical reactors.

It includes an interactive control room and artificial Intelligence applications that “highlight the future of industrial automation,” according to the release.

"Digitalization is significantly enhancing the global competitiveness of the U.S. through continuous innovation and increased investment into next-generation technology," Aamir Paul, Schneider Electric's President of North America Operations, said in the release.

Texas has over 4,100 Schneider Electric employees, the most among U.S. states, and has facilities in El Paso, the Dallas-Fort Worth metroplex and other areas.

"This flagship facility in the Energy Capital of the World underscores our commitment to driving the future of software-defined automation for our customers in Houston and beyond,” Paul added in the release. “With this announcement, we are excited to continue supporting the nation's ambitions around competitive, efficient and cost-effective manufacturing."

Schneider Electric says the new Houston facility is part of its expansion plans in the U.S. The company plans to invest over $700 million in its U.S. operations through 2027, which also includes an expansion at its El Paso campus.

The company also announced plans to invest in solar and battery storage systems developed, built, and operated by Houston-based ENGIE North America last year. Read more here.

---

This story first appeared on our sister site, EnergyCapitalHTX.com.

9 can't-miss Houston business and innovation events for April

where to be

Two new conferences will launch while another longtime business competition celebrates its 25th anniversary this month in Houston. Plus, there are networking opportunities, family tech events and more.

Here are the Houston business and innovation events you can't miss in April and how to register. Please note: this article might be updated to add more events.

Ion Block Party: Art Crawl

Network and socialize with other tech enthusiasts and business-minded individuals while taking in the new gallery at Community Artists’ Collective and experiencing the immersive dome at Omnispace360. See work by Joel Zika, who will showcase his digital sculptures through augmented reality screens, and other public art around the Ion while also enjoying food and drink.

This event is Thursday, April 3, from 4-7 p.m. at the Ion. Click here to register.

CLA Presents: Raising Capital over Happy Hour

Gain a better understanding of the capital-raising process and various funding opportunities at this educational happy hour. Keith Davidson, the market leader for CLA in Dallas and former CFO of ICS, will present.

This event is Thursday, April 10, from 4-6 p.m. at The Cannon. Click here to register.

Rice Business Plan Competition

The Rice Alliance for Technology and Entrepreneurship will host the 25th annual Rice Business Plan Competition this month. Forty-two student-led teams from around the world, including one team from Rice, will present their plans before more than 300 angel, venture capital, and corporate investors to compete for more than $1 million in prizes.

This event is April 10-12. Stream the Elevator Pitch Competition and Final Round here.

RSVF Annual Conference

The Rice Student Venture Fund will host its first-ever Annual Conference to celebrate the university's entrepreneurial spirit and the rising generation of student-led innovation. The conference will include live startup demos, an RSVF fund update, a keynote fireside chat, a builder-investor panel and networking. RSVF welcomes students, alumni, investors, faculty and staff, and innovators and community members of the broader tech scene.

This event is Monday, April 14, from 4-8 p.m. at the Ion. Click here to register.

TEX-E Conference

TEX-E will host its inaugural conference this month under the theme "Energy & Entrepreneurship: Navigating the Future of Climate Tech." The half-day conference will feature a keynote from Artemis Energy Partners CEO Bobby Tudor as well as panels with other energy and tech leaders from NRG, Microsoft, GE Vernova and TEB Tech.

This event is Tuesday, April 15, from 1-4:30 p.m. at the Ion. Click here to register.

Houston Methodist Leadership Speaker Series

Hear from Dr. Jonathan Rogg, Chief Quality Officer and Vice President of Operations at Houston Methodist Hospital and a a practicing emergency medicine physician, at the latest Houston Methodist Leadership Speaker Series. Rogg will present "Leadership from the Bedside to the Boardroom."

This event is on Wednesday, April 23, from 4:45-6 p.m. at the Ion. Click here to register.

Ion Family STEAM Day– Let's Build a Tripwire Alarm

STEAM on Demand will host a hands-on, family-friendly engineering lesson for young ones on the Ion Forum Stairs. Kids will learn to create and test their own working alarm system. The event is geared toward those ages 7 to 14.

This event is Sunday, April 26, from 10 a.m. to noon at the Ion. Click here to register.

Greentown Houston Fourth Anniversary Transition On Tap

Climatetech incubator Greentown Labs will celebrate its fourth anniversary with a special edition of its signature networking event, Transition On Tap. Entrepreneurs, investors, students, and friends of climatetech are invited to attend.

This event is Tuesday, April 29, from 5:30-7:30 p.m. at Greentown Labs. Click here to register.

Integrate Space Technology Into Your Small Biz

The SBA Houston District Office and the UH Technology Bridge will host a collaborative event designed to help small businesses leverage space technology for prototype development. Attendees will also hear from industry experts on resources and gain access free technical engineering assistance to help accelerate their businesses.

This event is Wednesday, April 30, from 9:30-11:30 a.m. at UH Technology Bridge Innovation Center. Click here to reserve your spot.

View All Listings

INNOVATIONMAP EMAILS ARE AWESOME