Fast-growing Houston tech firm leads dozens of local companies on Inc. 5000

growth report

Houston-based Action1 landed at No. 29 nationally and No. 1 in the software category in this year's Inc. 5000 ranking. Photo via Getty Images.

Dozens of Houston-area businesses appear in this year’s Inc. 5000 ranking of the 5,000 fastest-growing private companies in the U.S., with a security software provider capturing the region’s No. 1 spot on the list.

Landing at No. 29 nationally and No. 1 in the software category, the top-ranked Houston-area private company is Houston-based Action1. The company recorded median revenue growth of 7,188 percent from 2021 to 2024, according to the Inc. 5000.

It’s the first appearance on the Inc. 5000 list for Action1, founded in 2018.

Action1 produces patch management software. A patch, or fix, quickly repairs software to resolve functionality problems, improve security or add features, according to TechTarget.

“Modern organizations understand that proactive patch management is essential to staying ahead of today’s rapidly evolving threat landscape,” Mike Walters, co-founder and president of Action1, said in a news release. “Our continued hypergrowth reflects the increased demand for enterprise cybersecurity innovation. You can’t be just powerful and secure — you must also be simple to deploy and scale and cost-effective.”

Below are the Houston-area businesses that earned a ranking among the top 1,000 companies, including their industries and their three-year growth rate. To see the other Houston-area companies in the Inc. 5000, visit inc.com/inc5000/2025.

  • No. 29 Houston-based Action1, software (7,188 percent)
  • No. 49 Spring-based Bogey Bros Golf, retail (5,540 percent)
  • No. 84 Houston-based Turtlebox Audio, consumer products (3,818 percent)
  • No. 87 The Woodlands-based Allied Wealth, financial services (3,796 percent)
  • No. 319 Houston-based Strategic Office Support, business products and services (1,228 percent)
  • No. 324 Houston-based Novo Communications, security (1,212 percent)
  • No. 363 Houston-based OptiSigns, software (1,101 percent)
  • No. 385 Houston-based Cart.com, business products and services (1,053 percent)
  • No. 421 Houston-based Sydecar, financial services (962 percent)
  • No. 471 The Woodlands-based Acuity Technology Partners, IT services (869 percent)
  • No. 577 Stafford-based Dahnani Private Equity Group, real estate (718 percent)
  • No. 706 Houston-based Why Not Natural, consumer products (585 percent)
  • No. 709 Stafford-based Signarama Sugar Land, manufacturing (584 percent)
  • No. 744 Houston-based FINBOA, software (557 percent)
  • No. 747 Houston-based Amundson Group, human resources (557 percent)
  • No. 793 Houston-based Field Industries, manufacturing (533 percent)
  • No. 957 Friendswood-based Good Ranchers, food and beverage (448 percent)
  • No. 999 Houston-based ARIA Signs & Design, business products and services (428 percent)
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Here's what Houston company scored the No. 2 spot among the fastest-growing private companies in the Southwest. Photo via Getty Images

Houston companies snag spots on regional Inc. 5000 list

by the numbers

Revenue growth is on fire at Houston-based Simple Solar.

Revenue at Simple Solar, a provider of residential solar installations, soared 8,007 percent from 2019 to 2021, putting it at No. 2 among the fastest-growing private companies in the Southwest. It leads the list of 25 Houston-area companies appearing in the new Inc. 5000 Regional rankings for the Southwest.

Between 2019 and 2021, the 165 private companies on the Southwest list posted an average growth rate of 557 percent. In 2021 alone, they added 16,116 jobs and nearly $5.5 billion to the Southwest’s economy.

“This year’s Inc. 5000 Regional winners represent one of the most exceptional and exciting lists of America’s off-the-charts growth companies,” says Scott Omelianuk, editor-in-chief of Inc. magazine. “They’re disruptors and job creators, and all delivered an outsized impact on the economy. Remember their names and follow their lead. These are the companies you’ll be hearing about for years to come.”

Here are the 25 Houston-area companies that made the Inc. 5000 Regional list for the Southwest, including their regional rankings.

  • No. 2 Simple Solar, Houston-based provider of residential solar installations, 8,007 percent growth
  • No. 6 Medical Edge Recruitment, The Woodlands-based health care recruiting and staffing firm, 2,980 percent growth
  • No. 8 Specialty1 Partners, Houston-based provider of surgical support services for dental practices, 2,921 percent growth
  • No. 15 Magnolia-based online women’s clothing retailer Jess Lea, 1,471 percent growth
  • No. 36 Houston-based accounting and advisory firm EFS Group, 458 percent growth
  • No. 39 Blackbuck Resources, Houston-based designer, builder, and operator of water infrastructure for the oil and gas industry, 432 percent growth
  • No. 48 Leveled Concrete, Houston-based provider of concrete and foundation repair services, 298 percent growth
  • No. 52 iCRYO Brands, Houston-based franchisor of cryotherapy centers, 269 percent growth
  • No. 53 TAXA Outdoors, Houston-based retailer of camping trailers, 268 percent growth
  • No. 58 Proxima Clinical Research, Houston-based contract research organization, 243 percent growth
  • No. 64 Ledge, Katy-based seller of in-pool and backyard furniture and accessories, 234 percent growth
  • No. 66 TekRevol, Houston-based software developer, 226 percent growth
  • No. 79 Finish Line Tax Solutions, Houston-based tax relief firm, 194 percent growth
  • No. 82 Incfile, Houston-based provider of services for small businesses, 192 percent growth
  • No. 99 Flocknote, Magnolia-based provider of technology that helps churches boost attendance and foster connections, 152 percent growth
  • No. 125 Onit, Houston-based developer of workflow and AI software, 104 percent
  • No. 137 InterLinc Mortgage, Houston-based mortgage lender, 85 percent growth
  • No. 140 Classy Art, Houston-based supplier of wall décor, 83 percent growth
  • No. 145 Zulie Venture (Cellpay), Sugar Land-based provider of prepaid wireless services, 78 percent growth
  • No. 149 Total Pump Solutions, Houston-based distributor of fire suppression equipment, 75 percent growth
  • No. 155 Construction Concepts, Houston-based commercial construction firm, 67 percent growth
  • No. 157 Energy Ogre, Houston-based service that helps consumers find electricity plans, 63 percent growth
  • No. 164 Garrison Construction Group, Houston-based commercial construction firm, 60 percent growth
  • No. 165 Technocrats Domain, Houston-based provider of IT services, 60 percent growth
  • No. 166, G&A Partners, Houston-based professional employer organization, 60 percent growth
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Rice Alliance and the Ion leader Brad Burke to retire this summer

lasting legacy

Brad Burke—a Rice University associate vice president who leads the Ion District’s Rice Alliance for Technology and Entrepreneurship and is a prominent figure in Houston’s startup community—is retiring this summer after a 25-year career at the university.

Burke will remain at the Rice Alliance as an adviser until his retirement on June 30.

“Brad’s impact on Rice extends far beyond any single program or initiative. He grew the Rice Alliance from a promising campus initiative into one of the most respected university-based entrepreneurship platforms,” Rice President Reginald DesRoches said in a news release.

During Burke’s tenure, the Rice Business School went from unranked in entrepreneurship to The Princeton Review’s No. 1 graduate entrepreneurship program for the past seven years and a top 20 entrepreneurship program in U.S. News & World Report’s rankings for the past 14 years.

“Brad didn’t just build programs — he built an ecosystem, a culture, and a reputation for Rice that now resonates around the world,” said Peter Rodriguez, dean of the business school. “Through his vision and steady leadership, Rice became a place where founders are taken seriously, ideas are rigorously supported, and entrepreneurship is embedded in the fabric of the university.”

One of Burke’s notable achievements at Rice is the creation of the Rice Business Plan Competition. During his tenure, the competition has grown from nine student teams competing for $10,000 into the world’s largest intercollegiate competition for student-led startups. Today, the annual competition welcomes 42 student-led startups that vie for more than $1 million in prizes.

Away from Rice, Burke has played a key role in cultivating entrepreneurship in the energy sector: He helped establish the Energy Tech Venture Forum along with Houston Energy and Climate Startup Week.

Furthermore, Burke co-founded the Texas University Network for Innovation and Entrepreneurship in 2008 to bolster the entrepreneurship programs at every university in Texas. In 2016, the Rice Alliance assumed leadership of the Global Consortium of Entrepreneurship Centers.

In 2023, Burke received the Trailblazer Award at the 2023 Houston Innovation Awards and was recognized by the Deshpande Foundation for his contributions to innovation and entrepreneurship in higher education.

“Working with an amazing team to build the entrepreneurial ecosystem at Rice, in Houston, and beyond has been the privilege of my career,” Burke said in the release. “It has been extremely gratifying to hear entrepreneurs say our efforts changed their lives, while bringing new innovations to market. The organization is well-positioned to help drive exponential growth across startups, investors, and the entrepreneurial ecosystem.”

Starting April 15, John “JR” Reale Jr. will serve as interim associate vice president at Rice and executive director of the Rice Alliance. He is managing director of the alliance and co-founder of Station Houston, beginning April 15. Reale is co-founder of the Station Houston startup hub and a startup investor and was also recently named director for startups and investor engagement for the Ion.

“The Rice Alliance has always been about helping founders gain advantages to realize their visions,” Reale said. “Under Brad’s leadership, the Rice Alliance has become a globally recognized platform that is grounded in trust and drives transformational founder outcomes. My commitment is to honor what Brad has built and led while continuing to serve our team and community, deepen relationships and deliver impact.”

Burke joined the Houston Innovators Podcast back in 2022. Listen to the full interview here.

Houston team uses CPRIT funding to develop nanodrug for cancer immunotherapy

cancer research

With a relative five-year survival rate of 50 percent, pancreatic cancer is a diagnosis nobody wants. At 60 percent, the prognosis for lung cancer isn’t much rosier. That’s because both cancers contain regulatory B cells (Bregs), which block the body’s natural immunity, making it harder to fight the enemies within.

Newly popular immunotherapies in a category known as STING agonists may stimulate natural cancer defenses. However, they can also increase Bregs while simultaneously causing significant side effects. But Wei Gao, assistant professor of pharmacology at the University of Houston College of Pharmacy, may have a solution to that conundrum.

Gao and her team have developed Nano-273, a dual-function drug, packaged in an albumin-based particle, that boosts the immune system to help it better fight pancreatic and lung cancers. Gao’s lab recently received a $900,000 grant from the Cancer Prevention and Research Institute of Texas (CPRIT) to aid in fueling her research into the nanodrug.

“Nano-273 both activates STING and blocks PI3Kγ—a pathway that drives Breg expansion, while albumin nanoparticles help deliver the drug directly to immune cells, reducing unwanted side effects,” Gao said in a press release. “This approach reduces harmful Bregs while boosting immune cells that attack cancer, leading to stronger and more targeted anti-tumor responses.”

In studies using models of both pancreatic and lung cancers, Nano-273 has shown great promise with low toxicity. Its best results thus far have involved using the drug in combination with immunotherapy or chemotherapy.

With the CPRIT funds, Gao and her team will be able to charge closer to clinical use with a series of important steps. Those include continuing to test Nano-273 alongside other drugs, including immune checkpoint inhibitors. Safety studies will follow, but with future patients in mind, Gao will also work toward improving her drug’s production, making sure that it’s safe and high-quality every time, so that it is eventually ready for trials.

Gao added: “If successful, this project could lead to a new type of immunotherapy that offers lasting tumor control and improved survival for patients with pancreatic and lung cancers, two diseases that urgently need better treatments."

Houston booms as No. 2 U.S. metro for new home construction

Construction Boom

Driven by population growth, more residential rooftops are popping up across Houston and the rest of Texas than anywhere else in America.

Using data from the U.S. Census Bureau and Zillow, Construction Coverage found 65,747 new residential units were authorized in greater Houston in 2024. That figure landed Houston in second place among major metro areas for the total number of housing permits, including those for single-family homes, apartments, and condos.

Just ahead of Houston was the Dallas-Fort Worth Metroplex, which took first place with 71,788 residential permits approved in 2024. In third place was the country’s largest metro, New York City (57,929 permits).Elsewhere in Texas, the Austin metro ranked sixth (32,294 permits), and the San Antonio metro ranked 20th (14,857 permits).

Construction Coverage also sorted major metro areas based on the number of new housing units authorized per 1,000 existing homes in 2024. Raleigh, North Carolina, held the No. 1 spot (28.8 permits per 1,000 existing homes), followed by Austin at No. 2 (28.6), DFW at No. 3 (22.2), Houston at No. 4 (21.6), and San Antonio at No. 13 (13.6).

A Newsweek analysis of Census Bureau data shows building permits for 225,756 new residential units were approved in 2024 in Texas — a trend fueled largely by activity in DFW, Houston, Austin, and San Antonio. That put Texas atop the list of states building the most residential units for the year.

Through the first eight months of last year, 145,901 permits for new residential units were approved in Texas, according to Census Bureau data. That’s nearly 80,000 permits shy of the 2024 total.

Among the states, Construction Coverage ranks Texas sixth for the number of residential building permits approved in 2024 per 1,000 existing homes (17.9).

Extra housing is being built in Texas to meet demand spurred by population growth. From April 2020 to July 2024, the state’s population increased 7.3 percent, the Census Bureau says.

While builders are busy constructing new housing in Texas, they’re not necessarily profiting a lot from homebuilding activity.

“Market conditions remain challenging, with two-thirds of builders reporting they are offering incentives to move buyers off the fence,” North Carolina homebuilder Buddy Hughes, chairman of the National Association of Home Builders, said in a December news release. “Meanwhile, builders are contending with rising material and labor prices, as tariffs are having serious repercussions on construction costs.”

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