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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Houston startup raises $6M to scale home-based healthcare platform

fresh funding

As healthcare systems race to expand care beyond hospitals and into the home, investors are placing bigger bets on the infrastructure needed to make that shift possible.

This month, Rosarium Health announced it has raised $6 million in seed funding led by Kalos Ventures, with participation from ResilienceVC, Rock Health Capital, Symphonic Capital, Black Tech Nations Ventures and others.

The investment will help the Houston-based startup continue to build its platform, which features a national network of 800-plus clinicians and 3,000-plus contractors to coordinate home accessibility upgrades and modifications for seniors and people living with disabilities.

For founder and CEO Cameron Carter, the company’s mission grew out of firsthand caregiving experiences.

“From my own personal caregiving experiences, I realized that the benefits exist on paper, but not in reality,” Carter said in a news release. “Families are being left to figure out the paperwork and installations all on their own, which shouldn’t be how this works.”

While Medicare Advantage and Medicaid plans have expanded coverage for home-based services and accessibility modifications, the logistics behind delivering those services often remain fragmented.

Rosarium’s platform coordinates the entire process, from clinical assessments and referrals to contractor management, documentation, reimbursement and installation.

“A clinician can document that a home isn’t safe and a plan can approve a benefit, but there’s no one that’s responsible for making sure the work actually gets done,” Carter says. “We built the missing piece.”

The company was founded in 2021 as Rose Health and was a 2023 participant in the Texas Medical Center’s Accelerator for HealthTech program. It has scaled quickly, building a network of more than 800 clinicians and 3,000 contractors across 34 states.

Rosarium is currently in-network for 1.2 million Medicare and Medicaid lives, with projected coverage expected to reach nearly 4 million by the end of the year, according to the release.

“We’re excited to back Cameron because he and the team at Rosarium are building the infrastructure healthcare needs right now to make the home a safe and comfortable place of care,” Kate Ballinger, investor at Kalos Ventures, added in the release.

As part of the recent investment, Ballinger will join Rosarium’s board of directors.

With eyes on the future, Rosarium plans to grow its partnerships with Medicaid and Medicare Advantage plans, including CalViva and Community Health Plan of Imperial Valley, strengthening its presence in California while expanding access to underserved communities.

Additionally, Carter predicts that home-based healthcare will be part of a broader transformation happening across the industry.

“There’s a growing recognition that health outcomes are shaped by what happens in the home,” he said in the release. “The future of healthcare isn’t just treating people after something goes wrong. It’s creating environments that help prevent those problems in the first place.”

Houston business mogul Tilman Fertitta acquires Caesars in $17.6B deal

Money Moves

Houston billionaire Tilman Fertitta may currently be serving as America’s ambassador to Italy, but his company is as busy as ever. Fresh off its move to revive the Houston Comets WNBA franchise, his company, Fertitta Entertainment, has announced a $17.6 billion deal to acquire Caesars Entertainment, Inc.

Speculation about the deal has been circulating since at least March, according to various media reports. The deal combines Fertitta’s well-known Golden Nugget casino brand with all of the properties in the Caesars’ portfolio, including Las Vegas hotels Caesars Palace, Harrah's, Paris Las Vegas, Planet Hollywood, Horseshoe, The LINQ Hotel, Flamingo, and The Cromwell.

Overall, the combined company will include 60 domestic casino resorts and gaming facilities; online gaming including sports betting, iCasino, and Caesar’s online poker platform; retail sports betting at over 200 third-party locations through the William Hill brand; and over 550 Fertitta Entertainment outlets, including more than 450 Landry's full-service restaurants across America. The companies will combine their loyalty programs, Caesars Rewards, Golden Nugget's 24 Karat Select Club, and Landry's Select Club.

The terms will see Caesars’ shareholders receive $31 per share. Fertitta Entertainment will also acquire approximately $11.9 billion of Caesars' outstanding debt.

The transaction will be financed through a combination of equity contributed by Fertitta Entertainment, assumed Caesars' debt, and new committed debt financing arranged by a group consisting of 10 banks. It is subject to approval by Caesars’ shareholders and government regulators.

Fertitta Entertainment is the Houston-based company behind a diverse array of hospitality businesses, including The Golden Nugget, The Post Oak Hotel, River Oaks District, the Kemah Boardwalk, and Houston’s Downtown Aquarium.

It also operates a number of prominent restaurant brands, including Mastro's Restaurants, Del Frisco's Double Eagle Steakhouse, Morton's The Steakhouse, The Palm, McCormick & Schmick's, Landry's Seafood House, The Oceanaire Seafood Room, and Saltgrass Steak House.

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This article first appeared on CultureMap.com.

4 Houston-area institutions get $8M for cancer research facilities

fighting cancer

Cancer research capabilities in the Houston area just got an $8 million boost.

On Wednesday, May 20, the Cancer Prevention and Research Institute of Texas (CPRIT) awarded $8 million in grants to institutions in Houston and Bryan for the creation or expansion of so-called “core” cancer research facilities.

“Core facilities provide shared access to advanced technology, equipment, and scientific expertise that may not be available at every institution,” CPRIT says. “These core facilities are vital to not only cancer research but also to the study of diseases beyond cancer.”

Houston-area recipients of these $2 million grants are:

  • A facility at the University of Texas Health Science Center for preclinical support of cancer researchers in Texas to evaluate new safe, effective drugs and drug combinations.
  • The Accelerator for Cancer Therapeutics, operated by Houston’s Texas Medical Center Foundation. The accelerator helps researchers and startups move innovative cancer treatments from the lab to clinical trials.
  • Rice University’s Genetic Design & Engineering Center in Houston. The center enables researchers to collaborate on studies of custom DNA for cancer treatment.
  • A facility at the Texas A&M University System’s Health Science Center in Bryan that aims to speed up the development of cancer therapies.

In addition to those grants, the University of Texas M.D. Anderson Cancer Center, Methodist Hospital Research Institute, Baylor College of Medicine, and Rice University shared $21 million to recruit cancer researchers from other institutions.

The largest of those grants—totalling $4 million—went to M.D. Anderson for the recruitment of renowned cancer researcher Andre Nussenzweig from the National Institutes of Health. His research focuses on how DNA damage and faulty DNA repairs lead to cancer.

Here are the totals for the other CPRIT grants awarded in the Houston area:

  • $12.8 million to Houston-based Indapta Therapeutics for the development of an off-the-shelf therapy that naturally kills cancer cells, combined with an immunity-targeting agent for a type of leukemia.
  • $11.1 million to MD Anderson, including $5 million for a statewide platform to improve long-term health outcomes in adolescents and young adults who survived cancer.
  • $8.4 million to Baylor College of Medicine, including $4.8 million for two training programs for cancer researchers.
  • $6.25 million to UT Health Houston, including $4 million for a biomedical informatics and genomics training program for cancer researchers.
  • $4.4 million to the Texas A&M Health Science Center’s Houston campus, including $2.4 million for a cancer therapeutics training program.
  • $2.75 million to Rice, including $250,000 for a study of ovarian cancer.
  • $2 million to Houston-based March Biosciences for the development of a targeted therapy for treating T-cell lymphoma.
  • $1.15 million to the University of Houston, including $900,000 for a platform for detection of lung cancer.
  • $900,000 to Texas A&M in Bryan to conduct clinical drug trials in rural and underserved communities around the state.
  • $800,000 to Houston- and Israel-based Xerient Pharma for the development of an oral form of a cell-protecting drug called amifostine to protect the upper GI tract from radiation damage during pancreatic cancer treatment.
  • $659,000 to Missouri City-based OmniNano Pharmaceuticals for the development of a two-drug combination to treat the most common form of pancreatic cancer.
  • $250,000 to the University of Texas Medical Branch at Galveston for a novel therapeutic to prevent colitis-related colorectal cancer.
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