The Inc. 5000 list is out — here's how Houston faired this year. Photo by Natalie Harms

One hundred businesses in the Houston area — including the top-ranked company in Texas — have been named to the 2024 Inc. 5000 list of the country’s fastest-growing private companies.

The 2024 Inc. 5000 ranks companies based on their percentage growth in revenue from 2020 to 2023.

Topping the list of Houston-area companies on the list is The Woodlands-based Segment HR, which notched revenue growth of 7,353 percent. That growth rate earned Segment HR the No. 32 spot on the national list and the No. 1 ranking in Texas.

Founded in 2018 by former federal HR specialist Robin Scott, Segment HR specializes in providing HR support for federal agencies. The company employs remote HR specialists in 23 states and the District of Columbia.

Here’s the list of the top 25 Houston-area companies in the 2024 edition of the Inc. 5000, including each company’s headquarters city, growth rate, and national ranking:

  • Segment HR, The Woodlands, 7,353 percent, No. 32
  • Dhanani Private Equity Group, Stafford, 3,617 percent, No. 89
  • Realty.com, Houston 3,052 percent, No. 107
  • Turtlebox Audio, Houston, 1,913 percent, No. 209
  • Amundson Group, Houston, 1,306 percent, No. 332
  • Valiant Business Lending, Houston, 1,286 percent, No. 337
  • Strategic Office Support, Houston, 1,192 percent, No. 367
  • 10xTravel, Houston, 1,102 percent, No. 401
  • NOW Insurance, Houston, 797 percent, No. 559
  • Explore Group, Houston, 796 percent, No. 562
  • Specialty1 Partners, Houston, 728 percent, No. 631
  • FINBOA, Houston, 714 percent, No. 650
  • BroCoTec, Houston, 687 percent, No. 690
  • Elite Roofing, Houston, 675 percent, No. 706
  • Patriot Bolt, Humble, 641 percent, No. 757
  • CT Sounds, Houston, 624 percent, No. 789
  • Supreme Jewelers, Friendswood, 525 percent, No. 965
  • Dometik Commercial Construction, Cypress, 477 percent, No. 1,070
  • Vape City, Houston, 459 percent, No. 1,116
  • Highlands Construction, Houston, 451 percent, No. 1,132
  • Houston Tents and Events, Houston, 438 percent, No. 1,171
  • Goebel Fasteners, Houston, 385 percent, No. 1,340
  • Field Industries, Houston, 376 percent, No. 1,366
  • Coverflex Manufacturing, Houston, 365 percent, No. 1,410

“One of the greatest joys of my job is going through the Inc. 5000 list,” says Mike Hofman, editor-in-chief of Inc. magazine. “To see all of the intriguing and surprising ways that companies are transforming sectors, from health care and AI to apparel and pet food, is fascinating for me as a journalist and storyteller.”

Elsewhere in Texas:

  • Austin-based Maev led the Austin-area pack with a growth rate of 6,734 percent, earning the No. 38 spot on the national list.
  • Dallas-based Archer Review led the Dallas-area pack with a growth rate of 5,771 percent, earning the No. 46 spot on the national list.
  • LaVernia-based Begesh led the San Antonio-area pack with a growth rate of 1,111 percent, earning the No. 396 spot on the national list.
The sweaters may be ugly, but the success of Specialty1's team is gorgeous. Specialty1/Facebook

Houston company boasting 18,000-percent growth scores top spot on coveted Inc. 5000 list

winner, winner

Dozens of Houston-based companies have undergone explosive growth in revenue over the last few years, with one such business landing near the top of the prestigious 2023 Inc. 5000 list.

One Houston-based company, Specialty1 Partners, ranked No. 15 nationally, boasting an unimaginable 18,747 percent growth rate from 2019 to 2022. Founded in 2019 by a group of doctors, Specialty1 Partners is a specialty dental services provider focusing on endodontics, oral surgery, and periodontics.

In a press release celebrating their No. 15 spot, the company says it now has more than 350 specialists across 27 states, and over 220 practices.

"We are honored to be recognized by Inc. 5000 for our 3rd consecutive year," stated Daryl Dudum, founder and co-CEO of Specialty1 Partners. "Our tremendous growth reflects our core mission in serving our dental surgical specialists by providing the clinical autonomy they deserve and the business support they need."

While being No. 1 in Houston, Specialty1 Partners is also the fifth highest-ranked Texas business on the list, and No. 1 in the national dental industry. Austin-based CharterUp, an online marketplace specializing in real-time instant transportation booking, ranked No. 2 nationally and No. 1 in the state.

It's not the first award that Specialty1 Partners is celebrating this year. Dudum and his co-founder and co-CEO, Matthew Hadda, were named regional winners for the 2023 EY Entrepreneurs of the Year awards.

Companies on the 2023 Inc. 5000, released August 15, are ranked by percentage growth in revenue from 2019 to 2022. To qualify for the list, a company must have been founded and generating revenue by March 31, 2019. The company also must have been U.S.-based, privately held, for-profit, and independent as of December 31, 2022. The minimum revenue required for 2019 was $100,000; the minimum for 2022 was $2 million.

In all, 482 Texas-based companies made this year’s list, and 95 of those are Houston-based. The report says eight businesses are newly-founded, 59 are repeat honorees, and more than 9,400 jobs were added thanks to these companies.

The 10 remaining Houston-area businesses ranking among the top 500 include:

  • No. 81 – Hawthorne Capital, 5,574 percent growth rate
  • No. 89 – Valiant Capital, 5,223 percent growth rate
  • No. 162 – Intervene K-12, 3,207 percent growth rate
  • No. 205 – Mission Driven Meat & Seafood, 2,720 percent growth rate
  • No. 292 – BODY20, 1,931 percent growth rate
  • No. 360 – Cobalt Engineering and Inspections, La Marque, 1,588 percent growth rate
  • No. 383 – Jess Lea Boutique, Magnolia, 1,519 percent growth rate
  • No. 393 – Gasochem International, 1,469 percent growth rate
  • No. 441 – Supreme Jewelers, Friendswood, 1,315 percent growth rate
  • No. 489 – Just Made Foods LLC, 1,198 percent growth rate

Here are the other Texas companies appearing in the state’s top 20 are:

  • No. 2 – CharterUp, Austin, 111,130 percent growth rate
  • No. 4 – Green Light Distribution, Coppell, 41,090 percent growth rate
  • No. 13 – Blue Hammer Roofing, Dallas, 19,510 percent growth rate
  • No. 14 – eTrueNorth, Mansfield, 19,130 percent growth rate
  • No. 19 – Publishing.com, Austin, 16,497 percent growth rate
  • No. 85 – Archer Review, Dallas, 5,378 percent growth rate
  • No. 90 – Norwood, Austin, 5,189 percent growth rate
  • No. 104 – 24HourNurse Staffing, Pittsburg, 4,520 percent growth rate
  • No. 110 – Advantis Medical Staffing, Dallas, 4,302 percent growth rate
  • No. 112 – CloudServus, Austin, 4,215 percent growth rate
  • No. 144 – Maveneer, Dallas, 3,630 percent growth rate
  • No. 145 – Ashland Greene, Dallas, 3,617 percent growth rate
  • No. 152 – Physical Therapy Biz, Dallas, 3,542 percent growth rate
  • No. 155 – Curis Functional Health, Dallas, 3,444 percent growth rate
  • No. 175 – TimelyCare, Fort Worth, 3,015 percent growth rate
  • No. 180 – LeasePoint Funding Group, Austin, 2,920 percent growth rate
The full list of businesses can be found on inc.com.

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This article originally ran on CultureMap.

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Houston health tech co. lands NIH grant for AI cancer prediction tool

fresh funding

Houston-based CellChorus and Stanford Medicine were recently awarded a Phase I Small Business Innovation Research grant for the company's AI platform to test how certain cancer patients will respond to therapies.

The funding comes from the National Cancer Institute of the National Institutes of Health. According to a filing, the grant totaled just under $400,000.

CellChorus, which spun out from the University of Houston’s Technology Bridge, has developed TIMING (Time-lapse Imaging Microscopy In Nanowell Grids), which analyzes the behavior of thousands of individual immune cells over time and can identify early indicators of treatment success or failure.

The company will work with Stanford's Dr. David Miklos and Dr. Saurabh Dahiya, who have built the Bone Marrow Transplantation and Cell Therapy Biobank. The biobank manages and stores biological samples from patients treated at their clinic and in clinical trials.

"Predicting which patients will achieve durable responses after CAR-T therapy remains one of the most important challenges in the field,” Miklos said in a news release. “We aim to uncover functional cellular signatures that can guide treatment decisions and improve patient outcomes.”

The project will specifically profile cells from patients with relapsed/refractory large B-cell lymphoma (r/rLBCL). According to CellChorus, only about half of r/rLBCL patients who receive CAR-T therapy "achieve a durable, long-term remission." Others do not respond to therapy or experience relapse.

“The sooner we know whether a cancer therapy is working, the better. To maximize patient benefit, we need technology that can provide a robust and early prediction of response to therapy. The technology needs to be scalable, cost-efficient, and capable of rapid turnaround times,” Rebecca Berdeaux, chief scientific officer of CellChorus, added in the release. “We are excited to work with Drs. David Miklos and Saurabh Dahiya and their colleagues on this very important project.”

CellChorus has previously received SBIR grants from federal agencies, including a $2.5 million award in 2024 from its National Center for Advancing Translational Sciences (NCATS) and a $2.3 million SBIR Fast-Track award from the National Institute of General Medical Sciences in 2023.

Houston museum showcases America's founding documents in rare exhibit

Experience History

As the United States prepares to celebrate its 250th birthday, Houstonians have a chance to see rare documents from the founding of the nation. Freedom Plane National Tour: Documents That Forged a Nation, presented by the National Archives Foundation, will be on display at the Houston Museum of Natural Science through Monday, May 25.

The collection includes a rare engraving of the original Declaration of Independence; official Oaths of Allegiance signed by George Washington, Aaron Burr, and Alexander Hamilton; a draft of the Bill of Rights; the Treaty of Paris, the documented that recognized America's independence from Great Britain; and the tally of votes approving the Constitution.

The National Archives specifically chose Houston as one of only eight cities in the country to host the exhibit as a means to help the documents reach a wider audience outside of the main hub of semiquincentennial events in New England and the Washington, D.C. area.

"One of the things we decided when we put the tour together because we wanted to be off the East Coast," said Patrick Madden, CEO of the National Archives Foundation, who was onsite for the exhibit's opening in Houston. "There's a lot of 250th celebration stuff happening in the original 13 colonies. How do we get it to major markets where larger numbers of people can see it? So in the case of Houston, obviously, [is a] major market in this part of the country, but also we've partnered with the museum twice before with National Archives exhibits, so we knew that they would be up to the task of handling the exhibit and the crowds."

The star of the collection is a rare engraving of the original Declaration of Independence. Secretary of State and future president John Quincy Adams commissioned 200 exact replicas of the document from engraver William J. Stone in 1823. Less than 50 now remain. Madden joyfully pointed out that there are errors in this document, a potent reminder that the men who forged a nation made mistakes.

"There's a couple of typos in it where they had to make corrections," said Madden. "So even the founders, you know, they're all human. That resonates because here these people are making this move against the most powerful nation in the world and putting their lives on the line for a country based on ideas."

Other impressive parts of the collection include official Oaths of Allegiance signed by George Washington, Aaron Burr, and Alexander Hamilton, as well as one of the drafts of the Bill of Rights. Many states would not ratify the Constitution until certain rights were included in the document, leading to Washington going on a national tour assuring state leaders enshrining protections was first on the list. The draft copy on display specifically shows the First Amendment in progress.

Houston is the fourth stop on the exhibition's tour, which will take the documents to Denver, Miami, Dearborn, and Seattle through the summer. Freedom Plane is just one part of a larger patriotic celebration at the HMNS, which includes a film series celebrating American science and culture and general Americana decoration throughout the main hall.

Admission to Freedom Plane is free to the public, but separate from general admission to the museum. Space is limited, and passes are available on a first-come, first-serve basis. Non-members should expect long waits or the possibility that the day's passes are sold out. Only museum members can reserve passes for specific times. Flash photography is prohibited due to the fragile nature of the documents.

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This article originally appeared on CultureMap.com.

Houston quantum energy chip startup emerges from stealth with $12M round

seed funding

Houston-based Casimir has emerged from stealth with a $12 million seed round to commercialize its quantum energy chip.

The round was led by Austin-based Scout Ventures. Lavrock Ventures, Cottonwood Technology, Capital Factory, American Deep Tech, and Tim Draper of Draper Associates also participated in the round. The oversubscribed round exceeded the company’s original $8 million target, according to a news release.

Casimir’s semiconductor chips can generate power from quantum vacuum fields without the need for batteries or charging. The company plans to commercialize its first-generation MicroSparc chip by 2028.

The MicroSparc chip measures 5 millimeters by 5 millimeters and is designed to produce 1.5 volts at 25 microamps, comparable to a small rechargeable battery, without degradation and no replacement cycle.

“Casimir represents exactly the kind of breakthrough dual-use technology Scout Ventures was built to back,” Brad Harrison, founder and managing partner at Scout Ventures, said in the release. “This is based on 100 years of science and we’re finally approaching a commercial product … We’re proud to lead this round and support Casimir’s journey from applied science to deployed technology.”

Casimir says it aims to scale its technology across the ”full power spectrum,” including large-scale energy systems that can power homes, commercial infrastructures and electric vehicles.

Casimir's scientific work has been supported by DARPA-funded nanofabrication research and its technology was incubated at the Limitless Space Institute (LSI). LSI is a nonprofit that works to innovate interstellar travel and was founded by Kam Ghaffarian. Technology investor and serial entrepreneur Ghaffarian has been behind companies like X-energy, Intuitive Machines, Axiom Space and Quantum Space.

Harold “Sonny” White, founder and CEO of Casimir, believes the technology can power devices for years without replacements.

“Millions of devices will operate for years without a battery ever needing to be replaced or recharged because we have engineered a customized Casimir cavity into hardware capable of producing persistent electrical power,” White added in the release. “I spent nearly two decades at NASA studying how we power humanity’s future. That work led me to the Casimir effect and the quantum vacuum, where new tools have allowed us to build on a century of scientific knowledge and bring abundant power to the world.”