Four Houston companies ranked on Deloitte's annual list, but none were able to crack the top 100. Photo via Getty Images

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.

Four Houston-based companies have been ranked among the country's fastest growing tech businesses. Photo via Getty Images

4 Houston companies make fastest-growing tech biz list

H-town representing

In a newly released annual ranking, four Houston-based technology companies scored spots.

Deloitte's 26th annual North America Technology Fast 500 is an annual ranking of the fastest-growing North American companies across tech sectors. The companies on the list were selected based on percentage fiscal year revenue growth from 2016 to 2019. The Houston companies that made the top 500 were:

  • No. 37 (5,881 percent growth): Enercross — An oil and gas logistics software company.
  • No. 190 (641 percent growth): Onit — A B2B software company that designs streamlining solutions.
  • No. 328 (306 percent growth): Lexicon Pharmaceuticals Inc. — A biopharmaceutical company developing treatments for diseases.
  • No. 426 (221 percent growth): Vendor Credentialing Services (aka symplr)— A tech platform that simplifies vendor services, compliance, and more for health professionals.

"The varied industries represented in this year's local Fast 500 winners is evidence of Houston's positive momentum in diversifying its core competencies beyond the energy sector," says Amy Chronis, Houston managing partner at Deloitte, in the release. "Innovation continues to be the driving force behind our city's evolution, and the Fast 500 winners are helping spur its progress. They inspire and provide a glimpse into our future."

According to the release, the 2020 Technology Fast 500 companies achieved revenue growth ranging from 175 percent to 106,508 percent over the three-year time frame, with a median growth rate of 450 percent.

Silicon Valley-based companies dominated the list, accounting for the top three companies as well as 20 percent of the entire list. The second largest region represented was New York, with 13 percent of the list.

In terms of sector, software has the biggest hold on the ranking with 71 percent of the companies being categorized in that realm, which is the highest percentage Deloitte has ever seen in this study.

The report also looked ate venture backing and found that this year 81 percent of the 500 fastest-growing tech companies received venture funding, which includes, according to the release, 26 of the top 30 companies.

"Each year the Technology Fast 500 listing validates how important technology innovation is to our daily lives. It was interesting to see this year that while software companies continued to dominate, biotech companies rose to the top of the winners list for the first time, demonstrating that new categories of innovation are accelerating in the pursuit of making life easier, safer and more productive," says Mohana Dissanayake, partner at Deloitte, in the release. "We extend our congratulations to these well-deserved winners — who all embody a spirit of curiosity, and a never-ending commitment to making technology advancements possible."

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CultureMap Emails are Awesome

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

where to be

Editor's note: From lightning pitches to a female-focused AI summit and energy conferences, there's still plenty to do as Houston settles into the summer. Here are the Houston business and innovation events you can't miss in June and how to register. Please note: this article might be updated to add more events.


June 3 – Founders Live Houston 

Watch five Houston founders present their 99-second pitches at Founders Live Houston. Competing teams include AyeDu (Vinita Gupta), Omniscale (Tony Hernandez-Ferman), AnswerPath (Chris Mullins), Katana.video (Sam Bhattacharyya) and TraceWrap (Laketta B.).

This event is Tuesday, May 3, at 5:30 p.m. at the Ion. Register here.

June 4 – Center for Human Performance Research & Networking Event

Rice University and Houston Methodist's Center for Human Performance will host an event to support its work in the study of exercise physiology, injury prevention and rehabilitation. The organizations will share more information on seed grant opportunities, and the event will feature presentations from Rice and Houston Methodist leaders, networking sessions and a poster showcase.

This event is Wednesday, June 4, from 3-5:30 p.m. at the BioScience Research Collaborative at Rice University. Register here.

June 12 – Transition on Tap

Meet and hear lighting pitches from eight of Greentown Labs’ newest startup members. Attendees can network with entrepreneurs, investors, corporate leaders, philanthropists, students and other climate champions. Georgina Campbell Flatter, CEO of Greentown Labs, and Victor Martinez, Greentown's memberships manager, will also speak.

This event is Thursday, June 12, from 5:30-7:30 p.m. at Greentown Houston. Register here.

June 16-18 — Energy Drone & Robotics Summit

This three-day summit, the largest of its kind, will connect 1,500-plus leaders in the global energy/industrial robotics, drone and data sectors. Attendees will glean the latest ideas, use cases, best practices, tech and trends from a wide variety of robotics and drone industry experts.

This event begins June 16 at Woodlands Waterway Marriott. Register here.

June 17 – SGSF’s #SUPERGirlsInSTEM Summit, The Intersection of AI & Workforce

SUPERGirls SHINE Foundation is hosting a one-day summit for women ages 18-24 focused on the evolving intersection of AI and the STEM workforce. The conference will feature keynote speakers, panel discussions and hands-on workshops.

This event is Tuesday, June 17, from 9 a.m.-1 p.m. at the Ion. Register here.

June 18 – 2025 Obsidi BNXT: Juneteenth Tech Forum

Obsidi.com, an online platform launched by the Black Professionals in Tech Network (BPTN), will host a forum for high-performing Black and allied tech executives. The event offers networking opportunities, keynotes and panels that feature executives from Echelon Health Partners, Hewlett-Packard Enterprise, SAP, Intuit and more.

The event is Wednesday, June 18, at NRG Center. Register here.

June 24 — Houston Methodist Leadership Speaker Series

Head to the Houston Methodist Tech Hub at Ion to hear the latest installment of the Houston Methodist Leadership Speaker Series. Trent Fulin, vice president and CEO at Houston Methodist Cypress Hospital, will discuss the new 105-acre campus and its first 100 days of patient care, followed by a Q&A.

This event is Tuesday, June 23, from 4:45-6 p.m. Register here.

June 25-26 – Carbon Capture Technology Expo and  Hydrogen Technology Conference & Expo North America

Tackling climate change is one of the biggest global challenges that requires immediate action, and many industrial sectors are now looking to new technology to help meet net-zero emission targets. The Carbon Capture Technology Expo is North America's leading event for carbon capture, utilization and storage. The expo offers opportunities to network with industry frontrunners and best-in-class solution providers.

This event begins June 25 at NRG Center. Click here to register. It is co-located with the Hydrogen Technology Conference & Expo North America. Expo passes are free.

June 26 – NASA Tech Talk

Every fourth Thursday of the month, NASA experts, including longtime engineer Montgomery Goforth, present on technology development challenges NASA’s Johnson Space Center and the larger aerospace community are facing and how Houston’s innovation community can leverage them. Stick around after for drinks and networking at Second Draught.

This event is Thursday, June 26, from 6-7 p.m. at the Ion. Register here.

3 Houston innovators who made headlines in May 2025

Innovators to Know

Editor's note: Houston innovators are making waves this month with revolutionary VC funding, big steps towards humanoid robotics, and software that is impacting the agriculture sector. Here are three Houston innovators to know right now.

Zach Ellis, founder and partner of South Loop Ventures

Zach Ellis. Photo via LinkedIn

Zach Ellis Jr., founder and general partner of South Loop Ventures, says the firm wants to address the "billion-dollar blind spot" of inequitable distribution of venture capital to underrepresented founders of color. The Houston-based firm recently closed its debut fund for more than $21 million. Learn more.

Ty Audronis, CEO and founder of Tempest Droneworx

Ty Audronis, CEO and founder of Tempest Droneworx

Ty Audronis, center. Photo via LinkedIn.

Ty Audronis and his company, Tempest Droneworx, made a splash at SXSW Interactive 2025, winning the Best Speed Pitch award at the annual festival. The company is known for it flagship product, Harbinger, a software solution that agnostically gathers data at virtually any scale and presents that data in easy-to-understand visualizations using a video game engine. Audronis says his company won based on its merits and the impact it’s making and will make on the world, beginning with agriculture. Learn more.

Nicolaus Radford, CEO of Persona AI

Nicolaus Radford, founder and CEO of Nauticus RoboticsNicolaus Radford. Image via LinkedIn

Houston-based Persona AI and CEO Nicolaus Radford continue to make steps toward deploying a rugged humanoid robot, and with that comes the expansion of its operations at Houston's Ion. Radford and company will establish a state-of-the-art development center in the prominent corner suite on the first floor of the building, with the expansion slated to begin in June. “We chose the Ion because it’s more than just a building — it’s a thriving innovation ecosystem,” Radford says. Learn more.