Three Houston companies ranked on Deloitte's annual list, with two cracking the top 100. Photo via Getty Images

Three Houston companies have made this year’s Deloitte North America Technology Fast 500 list.

The report ranks the fastest-growing technology, media, telecommunications, life sciences, fintech, and energy tech companies in North America. The Houston companies to make the list, along with their revenue growth rates from 2021-2024, include:

  • No. 16 Action1 Corp., a provider of cybersecurity software. Growth rate: 7,265 percent
  • No. 92 Cart.com, a commerce and logistics platform. Growth rate: 1,053 percent
  • No. 312 Tellihealth, a remote health care platform. Growth rate: 244 percent

“Houston’s unique blend of entrepreneurial energy and innovation continues to strengthen the local business community, and I’m thrilled to see Houston companies honored on the 2025 Deloitte Technology Fast 500 list. Congratulations to all the winners,” said Melinda Yee, managing partner in Deloitte’s Houston office.

Action1 is no stranger to lists like the Deloitte Technology Fast 500. For instance, the company ranked first among software companies and 29th overall on this year’s Inc. 5000, a list of the country’s fastest-growing private companies. Its growth rate from 2021 to 2024 reached 7,188 percent.

Mike Walters, president and co-founder of Action1, said in August that the Inc. 5000 achievement “reflects the dedication of Action1’s global team, who continue to execute against an ambitious vision: a world where cyberattacks exploiting vulnerabilities are entirely prevented across all types of devices, operating systems, and applications.”

Atlanta-based Impericus, operator of an AI-powered platform that connects health care providers with pharmaceutical and life sciences companies, topped the Deloitte list with a 2021-24 growth rate of 29,738 percent.

“Our mission is to set the standard for ethical AI-powered physician connections to pharma resources, accelerating and expanding patient access to needed treatments,” said Dr. Osama Hashmi, a dermatologist who’s co-founder and CEO of Impiricus. “As we continue to innovate quickly, we remain committed to building ethical bridges across this vital ecosystem.”

Inc. magazine has identified the fastest-growing companies in Houston. Nick Bee/Pexels

These are the 5 fastest-growing companies in Houston, according to a recent report

ready, set, grow

Bellaire-based startup Instafuel is pumping up its revenue in a big way.

Among the 250 fastest-growing companies in Texas identified by Inc. magazine, Instafuel tops the group of businesses based in the Houston metro area and ranks fifth statewide. Houston-based companies make up 68 of the state's fast-growing companies — eight Houston companies make up the top 25 list.

Instafuel, whose official corporate name is Fuel Husky LLC, provides mobile refueling services to B2B clients. The Inc. ranking, released March 13, shows Instafuel posted revenue growth of 1,353 percent from 2016 to 2018.

According to a November 2019 article published by CSP magazine, Instafuel has expanded to 30 trucks that have dispensed nearly 10 million gallons of fuel to more than 150 B2B clients in major Texas metro markets like Houston, Dallas-Fort Worth, and Austin. CSP covers the convenience and petroleum retailing industry.

"We've been bootstrapping … in stealth mode for the last four years, just trying to grow this business one [client] by one, trying to truly understand what it means to be a mobile refueler, or what we call a compact mobile refueler, and trying to target and understand the business model for small- to medium-sized business fleets," Nour Baki, vice president and co-founder of Instafuel, told the magazine.

Ranked second in the Houston area and sixth statewide by Inc. is Spring-based Bellatorum Resources LLC, whose revenue shot up 1,261 percent from 2016 to 2018. Bellatorum, a veteran-owned and veteran-operated investment company, specializes in mineral rights and oil royalty acquisitions.

"I think our work ethic and customer service is what makes us different from our competitors," Chris Bentley, president and CEO of Bellatorum Resources, told the Oil & Gas Council in July 2018.

"Based on the feedback I consistently receive from mineral owners, they tell me that many of our competitors fail to return phone calls and emails, and sometimes even fail to treat them with common courtesy and respect during their business dealings," Bentley added. "We believe in putting the mineral owner first, which always pays off for us."

At No. 3 in the Houston area and No. 8 statewide is Houston-based Sarvicus LLC. Sarvicus, an IT services and utilities provider, grew revenue by 1,048 percent from 2016 to 2018.

"Whether it's a process, piece of equipment, or a tool, we try to optimize its efficiency. When we are successful, that often translates to benefits for our customers," Sarvicus co-founder and CEO Marc Packard told CIOReview magazine.

Houston-based SIA Solutions LLC appears at No. 4 among Houston-area companies and No. 9 among Texas companies. From 2016 to 2018, revenue at the professional services engineering and consulting firm soared 1,030 percent.

"Because of our client-first philosophy, we're willing to take on tough challenges and deliver. It's in our culture. It's natural to us," CEO Srini Neralla told the McFerrin Center for Entrepreneurship at Texas A&M University's Mays Business School in November 2019. We put together strong teams comprising of firms our size or larger, including universities, in order to deliver what our clients want."

With a 2016-18 growth rate of 824 percent, Houston-based Zahroof Valves Inc. nails down the No. 5 spot among Houston-area companies and No. 14 among Texas companies. Zahroof Values makes and markets specialized valves for reciprocating gas compressors. Its investors include Saudi Aramco Energy Ventures LLC, the investment arm of oil giant Saudi Aramco.

In an August 2019 release, Zahroof Valves CEO Tony Gioffredi said: "Our commitment to driving positive change [in] the oil and gas industry is shown through our innovative products … ."

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XSpace plans $250M industrial condo expansion with RAFA Racing Club

growth mode

Houston-based XSpace Group has teamed up with two other Houston companies, RAFA Racing Club and Maximo Capital, to develop five industrial condo projects that pair flex space and high-end car storage space with a members-only clubhouse for motorsports enthusiasts.

The five projects will be built in the Dallas-Fort Worth; Miami-Boca Raton; Charlotte-Mooresville, North Carolina; Phoenix-Scottsdale; and Los Angeles markets. Other markets, including Las Vegas, are under consideration for future phases.

XSpace says the initial five-project venture will generate estimated sales of $250 million. Condos will be available to rent or own.

The ground floor of each project will feature a RAFA Racing Club Social & Performance Centre, a members-only clubhouse, event space and lifestyle hub. The remaining floors will offer space for car storage, collectibles, offices and studios. RAFA will operate the ground floor of each building.

“Our goal from day one with RAFA Racing has been to connect people through a shared love of performance and community,” Rafael Martinez, founder of RAFA Racing Club and principal of Maximo Capital, said in a news release. “By pairing XSpace’s forward-thinking condominium design with the exclusive hospitality, networking and high-performance environment of a RAFA Racing Club clubhouse, we’re establishing a community blueprint where passion meets community.”

Each clubhouse will offer:

  • Lounges
  • Dining, working and networking spaces
  • Concierge service
  • Driving simulators
  • Fitness and conditioning capabilities

“We’re building the most valuable community-driven real estate product in America — and RAFA Racing Club is the anchor that makes it unlike anything else on the market," Byron Smith, founder of XSpace, added in a release. “By integrating our flexible, high-end industrial condominiums with RAFA’s world-class hospitality and automotive community spaces, we are completely redefining what commercial real estate can be for the motorsports enthusiast.”

RAFA operates facilities for motorsports fans in Houston and Austin. The clubs, geared toward wealthy people, entrepreneurs, executives, and brand partners, combine a clubhouse, garage, paddock (racing’s version of a locker room), a “human performance” center and driver training programs.

RAFA plans to open seven clubs in the U.S. and three outside the U.S. over the next four years.

XSpace operates a high-end office, warehouse, and lifestyle condo project in Austin and is building a project in Houston that’s set to open in 2027.

Walmart expands drone delivery service to 8 new Houston-area stores

Now Landing

More Walmart delivery drones are now buzzing around Houston-area skies.

In January, Walmart launched its drone delivery service in partnership with Wing at five locations in the Houston area. The retail giant just added eight more stores to its Houston-area drone delivery network.

Wing says the expansion makes drone delivery available to more than 1 million residents of the Houston area. “Many can now bypass notorious Houston traffic to get everyday Walmart essentials delivered by drone in minutes,” Wing said in a release.

The eight Walmart stores that joined the drone delivery network are:

  • 13003 Tomball Pkwy. Houston
  • 12353 FM 1960 Rd. West, Houston
  • 2901 Riley Fuzzel Rd., Spring
  • 20310 U.S. Highway 59, New Caney
  • 1025 Sawdust Rd., Spring, TX 77380
  • 13484 Northwest Fwy., Houston, TX
  • 13750 East Fwy., Houston
  • 3506 Highway 6 South, Houston

Stores where drone delivery was already available are:

  • 14215 FM 2100 Rd., Crosby
  • 1313 N. Fry Rd., Katy
  • 15955 FM 529 Rd., Houston
  • 255 FM 518, Kemah
  • 6060 N. Fry Rd., Katy

Houstonians can learn whether their address is eligible for drone delivery from a Walmart store by visiting wing.com/walmart. Drone-delivered orders can be placed on the Walmart app, the Wing app, or at Walmart.com.

Once an order is ready, it’s loaded onto a delivery drone. The drone then flies up to 60 mph and at a cruising altitude of about 150 feet to reach the customer’s home. The average flight takes less than 5 minutes.

Once it arrives at the customer’s home, the drone stops, hovers at roughly 23 feet, and lowers the order via a tether. Wing says its drones gently lower orders to the ground to protect fragile items like eggs and coffee.

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This article originally appeared on CultureMap.com.

TMC expands Korea BioBridge, welcomes 12 biotech companies to Houston

welcome to hou

The powerful partnership between Texas Medical Center (TMC) innovation and the world of Korean biotech advancement is already growing in scope. Just six months after the new TMC Republic of Korea BioBridge was first announced, 12 new companies from the Republic of Korea will establish on-site presences in Houston to further collaboration between the two nations and medical industries.

The expansion comes from a new agreement between TMC and the Korea Health Industry Development Institute (KHIDI). William McKeon, president and CEO of Texas Medical Center, applauded the move and predicted it would benefit both Houston and Korea immensely.

“Korea has established itself as a global leader in biohealth innovation, with a growing pipeline of breakthrough technologies across digital health, biotechnology, and medical devices,” McKeon said in the news release. “Through the TMC Korea BioBridge, we are creating a direct connection between Korea’s innovators and the world’s largest medical city. This collaboration between TMC and KHIDI provides companies with a place to establish a presence, build strategic relationships, engage with leading clinicians and researchers, and accelerate the path toward commercialization and patient impact in the United States.”

The companies that will be in residence at the TMC Innovation Factory include Ardens Lifescience, whose new CAROL device is currently in human trials tackling lung cancer by using the airway network as electrodes to perform bronchoscopic ablation; stem cell-based gene therapy firm CELLeBRAIN, currently working on neurological disorders and solid cancers; and Wellysis, the developer of the S-Patch wearable cardiac monitoring device.

Additional companies include:

  • Antigravity
  • ARPI
  • CTCELLS
  • elecell
  • HUVER Inc.
  • Hutom
  • ORGANOIDSCIENCES
  • YOUTH BIO GLOBAL
  • Seoul Medical Informatics Intelligence Lab Inc.

“This collaboration establishes a strong foundation for connecting Korea’s biohealth innovation ecosystem with world-class clinical and innovation resources in the United States,” Younghun Jeong, executive director of the KHIDI, added in the news release. “Through partnerships with Texas Medical Center and the Korean-American Medical Association Texas, we look forward to fostering meaningful collaboration among innovators, clinicians, and industry leaders while creating new opportunities for clinical validation, commercialization, and global growth. KHIDI remains committed to expanding global partnerships that support biohealth innovation, clinical collaboration, commercialization, and international growth.”

This is the seventh international strategic partnership for the TMC. It launched its first BioBridge with the Health Informatics Society of Australia in 2016. It launched its TMC Japan BioBridge, focused on advancing cancer treatments, last year. It also has BioBridge partnerships with the Netherlands, Ireland, Denmark and the United Kingdom.