4 Houston firms land on Forbes’ list of America’s largest private companies

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Tilman's Fertitta Entertainment is one of the largest privately owned businesses in America. Photo by J. Thomas Ford

Some Houston-area companies have some major bragging rights. Forbes has released its new list of the country’s largest privately owned companies based on annual revenue, and five local firms land on the list. They are:

Car dealership group Gulf States Toyota, No. 45, $8.3 billion in annual revenue.
Energy company Calpine, No. 48, $8 billion in annual revenue.
Petroleum and petrochemical products marketer Tauber Oil, No. 61, $6.7 billion in annual revenue.
Casino, restaurant, and sports conglomerate Fertitta Entertainment, No. 166, $2.8 billion in annual revenue.
BMC Software, No. 219, $2.1 billion in annual revenue.

Elsewhere in Texas, San Antonio-based H-E-B ranks fifth on Forbes’ new list of the country’s largest privately owned companies based on annual revenue. According to Forbes, the grocery chain’s annual revenue is $32.8 billion, making it the largest private company in Texas. On its website, H-E-B reports annual sales of $32 billion.

The only other San Antonio company on the Forbes list is construction engineering company Zachry Group. It ranks 225th, with annual revenue of $2 billion.

Nearly all of the other Texas companies in the Forbes ranking are based in the Houston and Dallas-Fort Worth and Houston areas. As well as the five Houston companies, 13 DFW companies companies show up on the list:

Grand Prairie-based alcohol and wine distributor Republic National Distributing, No. 25, $11.9 billion in annual revenue.
Dallas-based conglomerate Sammons Enterprises, No. 70, $5.8 billion in annual revenue.
McKinney-based roofing distributor SRS Distribution, No. 80, $5.4 billion in annual revenue.
Irving-based arts-and-crafts retailer Michaels, No. 81, $5.3 billion in annual revenue.
Dallas-based luxury retailer Neiman Marcus, No. 101, $4.7 billion in annual revenue.
Irving-based electrical systems and equipment maker Consolidated Electrical Distributors, No. 103, $4.6 billion in annual revenue.
Fort Worth-based food and beverage distributor Ben E. Keith, No. 107, $4.2 billion in annual revenue.
Dallas-based oil and gas explorer Hunt Consolidated, No. 113, $4 billion in annual revenue.
Frisco-based transportation and logistics software provider Transplace, No. 127, $3.6 billion in annual revenue.
Addison-based cosmetics retailer Mary Kay, No. 164, $2.8 billion in annual revenue.
Plano-based senior healthcare provider Golden Living, No. 178, $2.6 billion in annual revenue.
Dallas-based general contractor Austin Industries, No. 217, $2.1 billion in annual revenue.
Dallas-based transportation and logistics company Mode Transportation, No. 220, $2.1 billion in annual revenue.

One other company on the Forbes list, New Jersey-based IT company SHI International Corp., has a strong connection to Texas. Austin billionaire Thai Lee, with a net worth estimated at $4.1 billion, is co-founder, president, and CEO of SHI. The company ranks 28th on the Forbes list, with annual revenue of $11.1 billion.

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This article originally ran on CultureMap.

The Ion Smart Cities Accelerator program's inaugural cohort is moving into its next phase, and some participating startups earned some cash along the way. Courtesy of Station Houston

Startups take home cash prizes at inaugural Houston accelerator demo day

ion smart cities

The Ion Smart Cities Accelerator wrapped up the first phase of its inaugural program with a demo day this week as the startups move onto the pilot phase.

Over the past three months, the 10 selected startups have been working with mentors and the Station Houston resources to hone their companies within the program's new dedicated space, which includes a prototyping lab. At the demo day, which represents the conclusion of the first part of the Intel- and Microsoft-backed program, the startups presented their companies, what they've accomplished, and where they are headed.

Two companies received $5,000 checks from sponsors. GoKid, a carpooling optimization tool, received a prize from Brex, a credit card for startups. The other big winner was Aatonomy, a self-driving communities technology, which was awarded by Gulf States Toyota.

Ion Accelerator Demo Day F. Carter Smith

The second leg of the journey begins in January with pilot programs for the next six months. According to Christine Galib, director of Ion Smart Cities Accelerator, the companies have 15 pilots in the Houston area that hope to positively affect the lives of Houstonians.

"Our startups' technology focuses on connecting people. And this is what makes Houston truly the smartest city in America," says Galib. "To truly be the smartest city in America, we must continue to focus on how we connect people, and why we connect people, as well as to provide the processes and partnerships for these connections — not only to occur by chance, but also to be sustainable."

Gabriella Rowe, executive director of The Ion, echoed the importance people had on the smart cities equation.

"The great success that this accelerator has experienced over the last three months has really been because of people," she says.

Among those people who received a special shoutout from Rowe were the program's inaugural set of mentors. Several of these mentors introduced each of the startups as they presented.

"All of you opened your calendars, your time, and your wisdom to help these startups, but also to help our city," Rowe says to the crowd, which included the program mentors. "And to express a universal desire to make Houston the best possible city it can be, accessible to all Houstonians in every way as we grow to be that innovation economy and city of the future."

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European spacecraft developer expands to Houston with U.S. business, new lab

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European aerospace manufacturer The Exploration Company has established its first U.S. entity and named Space City as its headquarters.

The company announced earlier this month that it has launched TEC Federal to support U.S. government customers and agencies, and to scale The Exploration Company's engineering operations in the country.

Mark Kirasich serves as president of TEC Federal. Kirasich most recently served as the senior director of human spaceflight at Blue Origin after a nearly 40-year career at NASA.

The Exploration Company is developing the reusable Nyx space vehicle. Nyx is designed to take off from any heavy launcher in the world. It will then dock at space stations, retrieve up to 3,000 kilograms of cargo, splash down and return the cargo to Earth. The company aims to make Nyx fully reusable for up to 10 missions, making it a more affordable and sustainable option for aerospace missions.

The Exploration Company completed a successful drop test of the spacecraft in May in the Mojave Desert. The company says Nyx is slated to perform its first flight demonstration in 2028.

In addition to launching the Houston business, The Exploration Company also opened its new Rapid Innovation Lab near Houston's NASA Johnson Space Center on Space Park Drive.

The Exploration Company opened its Rapid Innovation Lab earlier this month. Photo via LinkedIn

The Rapid Innovation Lab features a full-scale mockup of the future Nyx crew capsule as well as ongoing development and testing of the Nyx cargo capsule, according to the company.

The Exploration Company says the new lab will allow its engineers, designers, and operators to prototype and test crew interfaces. It will also support partnerships with NASA personnel and astronauts.

“Houston gives us direct access to the people and expertise that have built and operated human spaceflight systems for decades. We’re excited to invest and expand around that— engineers, operators, and astronauts working together and moving quickly towards building a crew capsule.” Hélène Huby, founder and CEO of The Exploration Company, said in a blog post.

According to The Houston Chronicle, The Exploration Company has about 30 employees in the Houston area.

The company was founded in 2021 by Huby, a French rocket scientist, and has raised more than $350 million in venture capital. It operates out of Germany, France, Luxembourg, Spain and Italy, with offices in the U.S. and the United Arab Emirates. It is also developing a reusable, high-thrust rocket engine known as Storm.

Exciting XSpace expansion plans + more top Houston innovation headlines

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Editor's note: The top Houston innovation headlines for the first half of July include XSpace's expansion and KBR's C-suite hires. Here is a recap of the five most-read InnovationMap stories published July 1-15, 2026:

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

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

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. Continue reading.

2. KBR names C-suite duo to lead $5.3B government services spinoff

In advance of the spinoff of its Mission Technology Solutions unit, Houston-based KBR has made two C-suite hires for the new business. Michael LaRouche is coming aboard as president and CEO of the spinoff, currently called SpinCo, on Sept. 26. Nicholas Veasey joined as executive vice president and chief financial officer on July 1. Continue reading.

3. Experts: Houston's VC ecosystem has set the foundation — now we need scale

Fervo Energy went public earlier this summer. The Houston geothermal company priced its IPO at $27 per share, raised $1.89 billion, and opened the next morning at a market capitalization north of $10 billion. By most measures, it is the largest venture-backed cleantech IPO in history and an unambiguous win for Houston. It’s also a useful moment to look at where Houston's venture ecosystem stands and where it can go. The highlight: Houston's venture ecosystem has real foundations and, with increased company formation activity, can grow into the scale our city's ambitions deserve. Continue reading.

4. $12M pharmaceutical manufacturing facility to be built in Sugar Land

A nearly $12 million drug manufacturing facility is coming to Sugar Land. City leaders in Sugar Land recently approved a $1.3 million performance-based incentive for DeliverIt Group, a Sugar Land-based provider of specialty pharmacy, infusion therapy and clinical care services, for the development of the 60,000-square-foot facility. Continue reading.

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

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. Continue reading.

UH lands $4M NIH grant to study early signs of autoimmune disease

NIH funding

The University of Houston recently received a $4 million National Institutes of Health grant to support a 10-year longitudinal study to identify the earliest biological markers of autoimmune disease.

Led by Chandra Mohan, the Hugh Roy and Lillie Cranz Cullen Endowed Professor of Biomedical Engineering, the study aims to examine what causes Systemic Autoimmune Rheumatic Diseases (SARDs) and to identify targets for future treatments. The study will be carried out in collaboration with Dr. Karen Costenbader at Harvard Medical School, Boston.

SARDs include conditions like rheumatoid arthritis, systemic lupus erythematosus, Sjögren’s syndrome and systemic sclerosis—all are considered chronic diseases currently without a cure. Autoimmune diseases affect over 30 million people globally, according to UH.

SARDs occur when the body’s immune system attacks healthy, non-threatening tissues and organs. According to UH, in these diseases, the body often attacks nuclear antigens, creating anti-nuclear autoantibodies, which can be early detection signs for SARDs in more than 50 percent of patients, Mohan says.

Researchers will study blood samples and environmental exposure over the 10 years to better understand anti-nuclear autoantibodies.

“Collectively, these studies will help identify the genetic, environmental and cellular factors that are operative at the two steps of SARD development, namely the emergence of anti-nuclear autoantibodies and disease onset,” Mohan said in a news release. “ More importantly, these studies will highlight functional molecular pathways and mechanisms that may be operative at each step."

Mohan predicts that looking at SARDs’ shared characteristics, rather than each disease individually, could help identify more treatment methods.

“Individual SARDs have been examined in silos without an attempt to discern shared underlying features at the molecular level,” he added in the release. “Current understanding of the initial (and likely shared) origins of SARDs is only rudimentary but urgently needed to develop means for prevention and treatment.”

Earlier this year, UH also received an $11 million NIH grant to conduct a first-of-its-kind study of early language development in children ages 18 to 24 months. Read more here.

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