73,930 Texans were classified as millionaire tax filers in 2022. Photo via Getty Images

Tilman Fertitta, Elon Musk, Alice Walton, and Jerry Jones are members of the billionaires club in Texas. But just how many millionaires does the Lone Star State boast?

Altogether, 73,930 Texans were classified as millionaire tax filers in 2022, according to an analysis of IRS data by digital marketing firm Hennessey Digital. (For context, that millionaire count is just a few thousand shy of the entire population of Missouri City.) This figure puts Texas in the No. 2 spot for the country’s biggest population of millionaire taxpayers, behind first-place California.

However, if you crunch the figures a different way, Texas’ millionaire status isn’t quite as impressive, demonstrating that not everything is bigger in Texas. Texas ranks 10th among the states with the highest proportions of millionaire taxpayers, the study indicates. According to Hennessey Digital’s calculations, 27.1 of every 10,000 Texas tax filers reported adjusted gross income of at least $1 million for the 2022 tax year.

“The state’s booming economy, driven by energy, technology, and business-friendly policies, contributes to its wealthy population,” says Hennessey Digital.

Forbes ranked 43 Texans among the 400 wealthiest Americans last year, with Elon Musk topping the list. Houston hospitality king, Rockets owner, and newly appointed ambassador to Italy Tilman Fertitta was the 12th richest Texan and the 99th richest person in the United States, according to Forbes.

Which state comes out on top for the largest share of millionaire taxpayers? Connecticut, with 44.76 millionaire tax filers for every 10,000 filers, the Hennessey study shows. A number of well-to-do Connecticut suburbs are situated just a commuter train ride away from New York City, where bankers, brokers, and others pull in the big bucks. (Connecticut sits two spots above New York state in the millionaire ranking.)

The numbers in the study “highlight the diverse economic landscapes across our nation. States with favorable tax policies and thriving industries tend to attract more high-income earners,” says Jason Hennessey, CEO of Hennessey Digital. “Understanding these patterns can provide valuable insights for businesses and individuals making decisions about where to live, work, or invest.”

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This story originally appeared on our sister site, CultureMap.com.

Jeffery and Mindy Hildebrand are noted for their service to employees and community. Photo by Anthony Rathbun

Local billionaires Jeffery Hildebrand and Tilman Fertitta top list of richest in Houston, per Forbes

meet the billionaires

According to Forbes, half of all of the world’s billionaires are less wealthy than they were in 2022. But that’s not the case for most Houston-area billionaires like oil tycoon Jeffery Hildebrand, who was named the richest man in the city.

The 2023 edition of Forbes’ World’s Billionaires List declared Hildebrand’s net worth at $10.2 billion, placing him as the 171st richest person in the world. His fortune is $2.7 billion higher than his 2022 net worth of $7.5 billion, when he ranked No. 316 on the list.

As CultureMap reported, in 2015, Hildebrand made headlines when he gifted each of his 1,381 employees a $100,000 holiday bonus.

Houston’s favorite hospitality mogul and Rockets owner Tilman Fertitta is the city’s second-richest man, with his net worth climbing up to $8.1 billion. He ranked No. 256 on Forbes’ list, substantially higher than his No. 471 rank in 2022 when his net worth was $5.6 billion. Fertitta is surely living life to the fullest after hosting Miami rapper Pitbull at his San Luis Salute celebration earlier this year.

Tilman Fertitta Shut Up and Listen book laughing

Tilman Fertitta is sitting pretty at No. 2. Photo by J. Thomas Ford

Other Houston-area billionaires that made Forbes 2023 world’s richest list are:

  • Pipeline magnate Richard Kinder: tied for No. 317, $7.2 billion, down from $7.5 billion
  • Houston siblings and pipeline heirs Dannine Avara, Scott Duncan, Milane Frantz, and Randa Duncan Williams: all tied for No. 352, $6.8 billion, up from $6.6 billion
  • Toyota mega-dealer Dan Friedkin: tied for No. 466, $5.5 billion, up from $4.3 billion
  • Houston Texans owner Janice McNair: tied for No. 534, $5 billion, up from $4.2 billion
  • Hedge fund honcho John Arnold: tied for No. 878, $3.3 billion, unchanged since 2018
  • Energy exploration chief exec George Bishop: tied for No. 982, $3 billion, up from $2.7 billion
New to the 2023 report is Kamal Ghaffarian, the co-founder and executive chairman of Houston's Axiom Space, with a net worth of $2.1 billion. Though his LinkedIn notes that he is based in Maryland, reports add that he resides in Florida. His Forbes rank is No. 1434.An honorable mention (and billionaire newbie) is Amy Adams Strunk, the controlling owner of the Tennessee Titans and daughter of Houston Oilers owner Bud Adams. She has a residence in Waller (about 40 miles northwest of Houston) and her net worth is $1.7 billion — making her No. 1725 on the list.One name missing from Forbes 2023 report is software entrepreneur Robert Brockman, who passed away last August. Brockman fell from grace after he was charged in the largest tax fraud case in U.S. history in 2020. Forbes listed his 2022 net worth at $4.7 billion. He is survived by his wife, son, and two grandchildren.Elsewhere in Texas, Elon Musk reigns as the richest man in the state and in its capital city of Austin with a net worth of $180 billion. The Tesla and Space-X founder is the second richest person in the world, wedging his way between No. 1 Bernard Arnault of France (overseer of the LVMH empire of 75 fashion and cosmetics brands, including Louis Vuitton and Sephora), with a net worth of $211 billion; and No. 3 Jeff Bezos, the American Amazon founder, worth $114 billion.

Dallas Cowboys owner Jerry Jones'$13.3 billion net worth won him the title of Dallas' richest person, and the 12th richest sports owner on Forbes' "World's Richest Sports Owners 2023." His net worth is up from $10.6 billion last year.

The Fort Worth-based Walmart family heiress Alice Walton earned a spot on Forbes’ list as the third richest woman in the world. Her fortune is pegged at $56.7 billion, down slightly from $65.3 billion last year.

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This article originally ran on CultureMap.

The Walton family fortune grew astoundingly in the past year — to the tune of $23 billion. Photo via Getty Images

Texas billionaire and family reign as the world’s richest clan

RETAIL RICHES

It's hardly a surprise that America's Walton family, including Fort Worth billionaire Alice Walton, remains the world's richest family. What's truly stunning is how much their wealth has grown in the past year — by more than $23 billion.

In once again crowning the Waltons the world's richest family, the Bloomberg news service recently reported that their collective fortune had risen by $23 billion in the past year due to the climbing stock price of the Walmart retail chain. Sam Walton opened the first Walmart store in 1962.

Descendants of Sam and his brother, Bud, control more than 1.3 billion shares of Walmart stock either directly or through family trusts, Bloomberg says. Even though the Waltons have liquidated $6 billion in Walmart stock this year, they're now worth more in 2021 than they were in 2020.

As of mid-September, the Waltons were worth $238.2 billion, according to Bloomberg. That's almost $100 billion above the next richest family in the world, the Mars family of candy and pet care fame. Last year, Bloomberg pegged the Waltons' fortune at $215 billion.

To put the Waltons' one-year, $23 billion bump in wealth into perspective, Bloomberg estimates the net worth of Walmart heir Lukas Walton at $22 billion.

Alice Walton ranks as the second richest person in Texas (No. 1 is Elon Musk, at more than $200 billion), but she's not the richest Walmart heir. As of September 27, Bloomberg estimated Walton's net worth at $61.9 billion, making her the 19th richest person in the world. Ahead of her are brothers Jim ($63.7 billion, No. 17 worldwide) and Rob ($63.3 billion, No. 18 worldwide).

Not everyone is impressed with the Waltons' mountain of money. In February, U.S. Sen. Bernie Sanders, an independent from Vermont, branded the Waltons "the poster child for greed," based on the retailer's low starting wage. Walmart recently raised its minimum pay for hourly workers from $11 to $12.

"This is a family that is incredibly wealthy," Sanders said of the Waltons before the wage increase took effect.

"One of their owners spend[s] zillions of dollars on antique cars. They've got mansions. They have all kinds of art collections," the senator told CNN. "But somehow or another they can't pay their starting wage at more than 11 bucks an hour."

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This article originally ran on CultureMap.

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TMCi names 11 global startups to latest HealthTech Accelerator cohort

new class

Texas Medical Center Innovation has named 11 medtech startups from around the world to its latest HealthTech Accelerator cohort.

Members of the accelerator's 19th cohort will participate in the six-month program, which kicked off this month. They range from startups developing on-the-go pelvic floor monitoring to 3D-printed craniofacial and orthopedic implants. Each previously participated in TMCi's bootcamp before being selected to join the accelerator. Through the HealthTech Accelerator, founders will work closely with TMC specialists, researchers, top-tier hospital experts and seasoned advisors to help grow their companies and hone their clinical trials, intellectual property, fundraising and more.

“This cohort of startups is tackling some of today’s most pressing clinical challenges, from surgery and respiratory care to diagnostics and women’s health," Tom Luby, chief innovation officer at Texas Medical Center, said in a news release. "At TMC, we bring together the minds behind innovation—entrepreneurs, technology leaders, and strategic partners—to help emerging companies validate, scale, and deliver solutions that make a real difference for patients here and around the world. We look forward to seeing their progress and global impact through the HealthTech Accelerator and the support of our broader ecosystem.”

The 2025 HealthTech Accelerator cohort includes:

  • Houston-based Respiree, which has created an all-in-one cardiopulmonary platform with wearable sensors for respiratory monitoring that uses AI to track breathing patterns and detect early signs of distress
  • College Station-based SageSpectra, which designs an innovative patch system for real-time, remote monitoring of temperature and StO2 for assessing vascular occlusion, infection, and other surgical flap complications
  • Austin-based Dynamic Light, which has developed a non-invasive imaging technology that enables surgeons to visualize blood flow in real-time without the need for traditional dyes
  • Bangkok, Thailand-based OsseoLabs, which develops AI-assisted, 3D-printed patient-specific implants for craniofacial and orthopedic surgeries
  • Sydney, Australia-based Roam Technologies, which has developed a portable oxygen therapy system (JUNO) that provides real-time oxygen delivery optimization for patients with chronic conditions
  • OptiLung, which develops 3D-printed extracorporeal blood oxygenation devices designed to optimize blood flow and reduce complications
  • Bengaluru, India-based Dozee, which has created a smart remote patient monitor platform that uses under-the-mattress bed sensors to capture vital signs through continuous monitoring
  • Montclair, New Jersey-based Endomedix, which has developed a biosurgical fast-acting absorbable hemostat designed to eliminate the risk of paralysis and reoperation due to device swelling
  • Williston, Vermont-based Xander Medical, which has designed a biomechanical innovation that addresses the complications and cost burdens associated with the current methods of removing stripped and broken surgical screws
  • Salt Lake City, Utah-based Freyya, which has developed an on-the-go pelvic floor monitoring and feedback device for people with pelvic floor dysfunction
  • The Netherlands-based Scinvivo, which has developed optical imaging catheters for bladder cancer diagnostics

2025 Houston Innovation Awards winners revealed at annual event

The winners are...

After weeks of anticipation, the 2025 Houston Innovation Awards winners have been revealed. Finalists, judges, and VIPs from Houston's vibrant innovation community gathered on Nov. 13 at Greentown Labs for the fifth annual event.

This year, the Houston Innovation Awards recognized more than 40 finalists, with winners unveiled in 10 categories.

2025 Innovation Awards group photo Winners gather for a photo at the annual event. Courtesy photo

Finalists and winners were determined by our esteemed panel of judges, comprised of 2024 winners who represent various Houston industries, as well as InnovationMap editorial leadership. One winner was determined by the public via an online competition: Startup of the Year.

The program was emceed by Lawson Gow, Head of Houston for Greentown Labs. Sponsors included Houston City College Northwest, Houston Powder Coaters, FLIGHT by Yuengling, and more.

Without further adieu, meet the 2025 Houston Innovation Awards winners:

Minority-founded Business: Mars Materials

Clean chemical manufacturing business Mars Materials is working to convert captured carbon into resources, such as carbon fiber and wastewater treatment chemicals. The company develops and produces its drop-in chemical products in Houston and uses an in-licensed process for the National Renewable Energy Lab to produce acrylonitrile, which is used to produce plastics, synthetic fibers and rubbers. The company reports that it plans to open its first commercial plant in the next 18 months.


Female-founded Business, presented by Houston Powder Coaters: March Biosciences

Houston cell therapy company March Biosciences aims to treat unaddressed challenging cancers, with its MB-105, a CD5-targeted CAR-T cell therapy for patients with relapsed or refractory CD5-positive T-cell lymphoma, currently in Phase 2 clinical trials. The company was founded in 2021 by CEO Sarah Hein, Max Mamonkin and Malcolm Brenner and was born out of the TMC Accelerator for Cancer Therapeutics.

Energy Transition Business: Eclipse Energy

Previously known as Gold H2, Eclipse Energy converts end-of-life oil fields into low-cost, sustainable hydrogen sources. It completed its first field trial this summer, which demonstrated subsurface bio-stimulated hydrogen production. According to the company, its technology could yield up to 250 billion kilograms of low-carbon hydrogen.

Health Tech Business: Koda Health

Koda Health has developed an advance care planning platform (ACP) that allows users to document and share their care preferences, goals and advance directives for health systems. The web-based platform guides patients through values-based decisions with interactive tools and generates state-specific, legally compliant documents that integrate seamlessly with electronic health record systems. Last year, the company also added kidney action planning to its suite of services for patients with serious illnesses. In 2025, it announced major partnerships and integrations with Epic, Guidehealth, and others, and raised a $7 million series A.

Deep Tech Business: Persona AI

Persona AI is building modularized humanoid robots that aim to deliver continuous, round-the-clock productivity and skilled labor for "dull, dirty, dangerous, and declining" jobs. The company was founded by Houston entrepreneur Nicolaus Radford, who serves as CEO, along with CTO Jerry Pratt and COO Jide Akinyode. It raised eight figures in pre-seed funding this year and is developing its prototype of a robot-welder for Hyundai's shipbuilding division, which it plans to unveil in 2026.

Scaleup of the Year: Fervo Energy

Houston-based Fervo Energy is working to provide 24/7 carbon-free energy through the development of cost-competitive geothermal power. The company is developing its flagship Cape Station geothermal power project in Utah, which is expected to generate 400 megawatts of clean energy for the grid. The company raised $205.6 million in capital to help finance the project earlier this year and fully contracted the project's capacity with the addition of a major power purchase agreement from Shell.

Incubator/Accelerator of the Year: Greentown Labs

Climatetech incubator Greentown Labs offers its community resources and a network to climate and energy innovation startups looking to grow. The collaborative community offers members state-of-the-art prototyping labs, business resources and access to investors and corporate partners. The co-located incubator was first launched in Boston in 2011 before opening in Houston in 2021.

Startup of the Year (People's Choice): FlowCare

FlowCare is developing a period health platform that integrates smart dispensers, education, and healthcare into one system to make free, high-quality, organic period products more accessible. FlowCare is live at prominent Houston venues, including Discovery Green, Texas Medical Center, The Ion, and, most recently, Space Center Houston, helping make Houston a “period positivity” city.

Mentor of the Year, presented by Houston City College Northwest: Jason Ethier, EnergyTech Nexus

Jason Ethier is the founding partner of EnergyTech Nexus, through which he has mentored numerous startups and Innovation Awards finalists, including Geokiln, Energy AI Solutions, Capwell Services and Corrolytics. He founded Dynamo Micropower in 2011 and served as its president and CEO. He later co-founded Greentown Labs in Massachusetts and helped bring the accelerator to Houston.

2025 Trailblazer Award: Wade Pinder

Wade Pinder, founder of Product Houston, identifies as an "Ecosystem Wayseeker" and is the founder of Product Houston. A former product manager at Blinds.com, he has been deeply engaged in Houston’s startup and innovation scene since 2012. Over the years, he has supported hundreds of founders, product leaders, and community builders across the Houston area. In 2023, he was honored as Mentor of the Year in the Houston Innovation Awards.

America's first Ismaili Center set to open in Houston in December

Sneak Preview

The long-awaited Ismaili Center, Houston is set to open to the public next month. The 11-acre site has been painstakingly designed and constructed to offer indoor and outdoor public spaces for Houstonians to enjoy, connect, and engage. As the only Ismaili Center in the United States — and seventh in the world — it joins its international communities in London, Vancouver, Lisbon, Dubai, Dushanbe, and Toronto.

Nearly 20 years in the making, the Ismaili Center, Houston features a prayer hall, rotating art installations, a black box theater, a cafe, numerous social halls for weddings and other events, and nine acres of outdoor space and landscaped botanical gardens. Involved parties hope that the community will see the space as an extension of the neighboring parks along the bayou, and have included a garden entrance to the north lawn and gardens at the corner of Montrose Boulevard and Allen Parkway.

While Houston is known for its many community engagement centers, the architects and designers believe that the seamless integration of indoor and outdoor spaces sets the Ismaili Center, Houston apart from all others.

“What we know is the connections between buildings, environment, quality of life, and landscape — this is nothing new,” structural and facade engineer Hanif Kara says. “But, certainly, it’s hard to see that in other developments, particularly when they are done by developers. It’s quite difficult to find community spaces, and to see how quality of life is improved for everyone. I think we’ve all experienced that kind of hope that it will play out something like this.”

Designed by Farshid Moussavi Architecture and Nelson Byrd Woltz Landscape Architects, the remarkable 11-acre site is designed both to receive LEED Gold certification and to withstand the tests of Houston’s sometimes extreme weather conditions.

Principal architect Farshid Moussavi looks forward to seeing the Houston community utilize the space she’s worked so hard to deliver: “We’ve given the hardware to the community, now the software needs to come in. So I hope that there will be music recitals, or lectures, or book fairs, or other kinds of markets that can happen—even simultaneously. This is not an experiment, it’s the seventh in the world.”

Community welcome events are scheduled for December 12 and 13, but, until then, here are 10 features and things to know about the Ismaili Center, Houston.

What is the Ismaili Center, Houston?

“The use of the building is really meant for, or our hope, is that we are able to—on an enhanced view of what the community does today—have engagement on service projects, arts and culture, interfaith dialogue, and even just in bringing people together,” Omar Samji, Ismaili Council for the United States of America, says. “The notion of bringing people together in a place where it is easy to create connections because it’s an open space, and because it’s specifically designed to be a place where people interact and where people find commonality. Because whether you’re out in the gardens, or on the environs, or in the atrium, this enables connection.”

Who is His Highness the Aga Khan?

His Highness Prince Rahim Aga Khan V is the 50th hereditary Imam (spiritual leader) of the Shia Ismaili Muslims and a direct descendant of the Prophet Muhammad. He was educated at Philipps Academy in Andover and Brown University (Class of 1995). He became Imam in February 2025 upon the passing of his father, His Highness Prince Karim Aga Khan IV.

The Aga Khan promotes an understanding of Islam rooted in values of generosity, tolerance, pluralism, environmental stewardship, and the shared unity of humanity. He also chairs the Aga Khan Development Network (AKDN), one of the world’s largest private development agencies, which works across more than 30 countries to improve quality of life for marginalized communities regardless of faith or background.

The scale

The center stretches across an 11-acre site along Montrose Boulevard, from West Dallas to Allen Parkway. The physical building is 150,000 square feet, leaving nine acres for garden spaces on both the north and south sides of the building. The south side of the property is more formal, with gardens and community spaces that flank an 80-foot reflection pool and other water features. The gardens on the north side of the building are more informal, but densely planted and vast.

Photo by Iwan Baan

The creation

The development of the Ismaili Center was led by the Ismaili Council. It was initiated by His Highness Prince Karim Aga Khan IV (1936-2025), and completed under the leadership of his eldest son, Prince Rahim Aga Khan V.

The project was designed and constructed by a team of both local and international firms. Farshid Moussavi Architecture joined forces with structural and facade engineer Hanif Kara, co-founder and creative director of AKT II. DLR Group is the architect and engineer of record, while contractor McCarthy Building Companies built the project. Thomas Woltz, senior principal and owner of landscape architecture firm Nelson Byrd Woltz, along with principal Jeff Aten taking lead on the nine acres of garden space. The project is targeting LEED Gold certification.

The focus on native Texas plants and trees

The center will be recognized as a leading cultural asset for the City of Houston, complementing nearby institutions such as The Menil Collection, Rothko Chapel, Asia Society Texas, and the Museum of Fine Arts, Houston. While the surrounding gardens will add to the other notable Nelson Byrd Woltz projects within close proximity at Memorial Park, Rothko Chapel, and Rice University.

“We’ve been building massive projects in Houston for 12 years,” Woltz says. “We know the horticultural community in the region, and we did a deep, deep dive in ecological research to understand ‘What are the native plants of whatever region?’ It’s just baked into our process. Right when we are starting any project in Houston—right to the river. Look at the soils, ‘What are the plants appropriate to that place?’ Its solar aspect, its humidity, it’s moisture in soils, the shadow of the building.

But then, this idea of taking a section across the state of Texas, so that each of those distinct ecological regions is represented by one of the terraced gardens — so it’s very clear. It’s a diagram of the state of Texas and all of its native plants. This is functioning like a botanic garden and a repository for biodiversity — this is work in service.”

The eco-friendly exterior

The exterior of the building is clad in stone, a durable material with low embodied carbon. The stone cladding is a rainscreen over in-situ ‘fair-faced’ concrete walls, exposed on the interior to minimize additional material use. The concrete mix used has replaced 35-62 percent of Portland cement with fly ash and slag, reducing CO2 emissions by roughly 30 percent compared to standard mixes. The exterior stone rainscreen uses smaller tiles to increase the stone yield, utilizing 20-25 percent more of the irregular blocks they are cut from. This reduction in waste has also lent itself to crafting the cladding in a unique way.

The tessellation of the stone pieces changes across the building's surfaces to create different patterns on different sides of the buildings and at the corners. Relief stone tiles are used to add texture to the facades.

The space for outdoor events

The north-facing botanical gardens that will accommodate the 200-year flood plain offer a 27 foot gradient toward the building. This allowed for various levels of seating and gathering areas that culminate at an elevated terrace that will act as a stage for various events such as plays and concerts. Attendees can stretch out and enjoy the shows from an extensive lawn area that is surrounded by dense gardens of native trees and plants.

The black box theater

A 2,600-square-foot black box multipurpose space which seats 125 people is found on the second floor of the building’s west wing. It can host public events, such as exhibitions, film screenings, theatrical performances, music recitals, and other artistic programs throughout the year. It will also serve as a flexible space for teaching and learning. With acoustic isolation to surrounding spaces and the mechanical mezzanine above, it is designed to operate simultaneously without disrupting other events in the building. Design includes an upper-level control room, pipe grid, and flexible drapery and seating configurations to allow for a wide variety of programming.

The cafe

The center’s café is a 1,600-square-foot, double-height space located in the west wing (Montrose side) that opens onto an enormous terrace, offering visitors the option to enjoy their coffee or food outdoors. The terrace near the cafe is lined by an exterior wall and long, trough-style fountains that aid in noise reduction from Montrose Boulevard. The second-floor wall overlooking the Café is fully glazed, creating visual connection with the levels above.

The prayer hall

The prayer hall is 12,240 square feet, featuring a unique structural system of seven interlocking squares, formed from steel beams spanning the 115-by-115-foot open space. These beams are clad in concrete to enhance durability, beneath which lies a two-layer perforated aluminum ceiling with integrated diffused lighting. Its intricate pattern recalls the traditional jālī screens of Islamic architecture creating a soft, seemingly infinite ceiling effect, adding to the serenity of the prayer hall.

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A version of this article first appeared on CultureMap.com