Thomas Rubenak is senior principal of Accenture Ventures. Courtesy of Accenture

In most industries, there's a disconnect between startups and major corporations. The startups may have solutions for the big companies, but the two entities might not know how to connect with each other. That's something Accenture hopes to help with.

The company created Accenture Ventures to help connect the dots between emerging technology and big business. As the program has expanded, Thomas Rubenak was selected to serve the Southwest region as senior principal.

With a long career of working in tech, research and design, and startups, Rubenak hopes to use his experience to help grow Houston's blossoming innovation ecosystem.

"It takes a village. It's not just the amazing accelerators we have throughout the region," Rubenak says. "If you look at the Cannon, Houston Exponential, MassChallenge, and all of the ecosystem — it takes all of us together to prop up a thriving economy. That's what we're doing. We're changing not just the face of Houston but really impacting the startups as well as the clients we serve."

Rubenak spoke with InnovationMap to discuss the role Accenture Ventures plays in the ecosystem and how he sees innovation in Houston growing.

InnovationMap: You're new to your role, but you've worked with tech and startups for years. Tell me a little bit about your career to date. 

Thomas Rubenak: I come most recently from EY. I did a few assignments there, primarily working with the EY and Microsoft alliance. I was also a go-to-market lead for deep technical accounting for IPOs and other regulatory compliance issues. I worked a lot with the Entrepreneur of the Year program. Before that, I spent most of my career in tech research with Gartner and Forrester. This space is all about brilliant minds that really focus on helping the world understand what's next in emerging technology. I worked pretty extensively with venture capital, private equity and venture banks.

IM: While you’ve worked on projects across the country, you’ve been based in Houston, so you’ve been able to see the city transform, right?

TR: In my career, I've been really fortunate enough to align with amazing people in the market. Several years ago, we started a community just in Houston to bring entrepreneurs, angel investors, and some VC together. It was a nonprofit, grassroots effort called TeXchange; I just wanted to help entrepreneurs connect to sources of capital.

IM: How did Accenture Ventures get its start and what does it aim to do?

TR: Accenture realized four years ago that in order to stay competitive, it needed to tap the best of the best in the startup world. The only way to do that is to dedicate resources and people to that task, and that's how we started Ventures. As a recent joiner, my role is primarily the lead for the Southwest to bring the best of the startup ecosystem into our clients to help them solve their most pressing problems. And it's not just about problems, but also about opportunities.

It's a win-win-win. The client gets the benefit of having the best of the best and the startups get amazing exposure to companies they might not have been able to get in front of. And, Accenture is happy because it gets to serve the client.

Accenture works in multiple sectors, including resources (oil and gas), chemicals, mining — so for obvious reasons, the Southwest is a big sector for us — but, we also tap the health and public safety sectors.

As we look to design these arrangements with these startups and we find that there is a compelling need to invest in them, we'll become a minority investor. If that startup then has a M&A play that makes sense to everyone, we'll look into that as well.

IM: How do Accenture Ventures and the Innovation Hub work together?

TR: I am part of the hub, and I also serve the broader team.

What we bring to the table is amazing talent to data scientists to designers — many different resources — and we work with our clients to figure out what they want to solve or if there's a play in the market they are interested in. We can pull the best from Accenture and from the startup ecosystem to design solutions.

IM: What’s the most challenging thing about solving clients’ goals?

TR: It's not a challenge so to speak, but it's something I have to be mindful of, and that is always keeping the client's interest at hand, so recognizing and realizing that they have short- and long-term goals that they want to achieve.

IM: What's it like working with companies on the startup side?

TR: We seek specific types of startups. In order for us to be really effective, we keep a pulse on the market. Our focus is on companies that have gotten their source of funding, they've gone through their first round, companies that have great management who have been in industry or served big companies, and companies that are disruptors, innovators, or have something really compelling to bring to us. The challenge is that there are so many of them. There are so many great startup companies doing amazing things. But, as many startups as there are, there's just as many client issues.

IM: In your opinion, what challenges does the Houston innovation ecosystem still have to overcome?

TR: It's no secret that the economic engine of venture capital is in the east and west coasts. We have a lot of great VCs here, but it's about how do we keep our startups here. That's an issue that everyone talks about. But we also have seen a lot of startups move to Houston from other places. But, from the financial aspect of it, I think we could always use more of that. I personally don't think there will ever be another Silicon Valley, but we'll be something different. We'll be ourself. But, we do need those sources of capital in place. But something I want to mention is the diversity and the universities in Houston — we have a lot going for us.

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Portions of this interview have been edited.

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27 Houston companies make Fortune 500 for 2026, led by energy giants

Houston HQs

Houston is a giant among U.S. hubs for corporate headquarters.

The 2026 Fortune 500 lists 27 companies based in the Houston area, with many energy companies claiming top spots. Houston ties with Chicago for the second-most Fortune 500 headquarters, preceded only by New York City (53). Dallas-Fort Worth is home to 23 Fortune 500 headquarters.

Texas leads the nation for Fortune 500 headquarters (57), with California in the No. 2 spot and New York at No. 3.

“Texas is the undisputed headquarters of headquarters,” Gov. Greg Abbott said in a news release. “The world’s leading businesses invest with confidence in Texas because of our welcoming business climate, predictable regulatory environment, and skilled and growing workforce. People and businesses are choosing Texas because Texas works.”

The 2026 Fortune 500 ranks the largest U.S. corporations based on revenue in fiscal year 2025.

Here’s a rundown of the 27 Fortune 500 companies based in the Houston area.

  • No. 9 ExxonMobil
  • No. 21 Chevron
  • No. 29 Phillips 66
  • No.55 Sysco
  • No. 75 ConocoPhillips
  • No. 89 Enterprise Products Partners
  • No. 103 Plains GP Holdings
  • No. 133 Hewlett Packard Enterprise
  • No. 149 NRG Energy
  • No. 157 Quanta Services
  • No. 164 Baker Hughes
  • No. 173 Occidental Petroleum
  • No. 179 Waste Management
  • No. 201 EOG Resources
  • No. 204 Group 1 Automotive
  • No. 207 Halliburton
  • No. 223 Cheniere Energy
  • No. 236 Corebridge Financial
  • No. 262 Targa Resources
  • No. 266 Kinder Morgan
  • No. 388 Westlake
  • No. 435 CenterPoint Energy
  • No. 438 APA
  • No. 440 Comfort Systems USA
  • No. 455 NOV
  • No. 488 KBR
  • No. 496 Coterra Energy. Oklahoma City, Oklahoma-based Devon Energy and Houston-based Coterra Energy merged in early May, with the combined company retaining the Devon Energy name and the Houston headquarters.

The Greater Houston Partnership notes the Houston area soon will welcome its 28th Fortune 500 company. Expand Energy (formerly Chesapeake Energy), appearing at No. 362 on the 2026 list, says it’s moving its headquarters from Oklahoma City to Spring this year.

As the natural gas producer prepares to relocate to Texas, it’s hunting for a new leader. Nick Dell’Osso stepped down as president and CEO earlier this year. Board Chairman Michael Wichterich is interim president and CEO.

Dell’Osso became president and CEO of Oklahoma City-based Gulfport Energy effective May 28.

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This article first appeared on EnergyCapitalHTX.com.

Elon Musk's SpaceX is about to make its debut on Wall Street

Money Moves

Elon Musk's rocket company SpaceX will make its debut on Wall Street Friday, June 12, and both institutional and retail investors are expected to gobble up the 555.6 million shares going up for sale at $135 apiece. Musk, already the world's richest man, could become its first trillionaire.

SpaceX is likely to become the biggest IPO ever, with proceeds of around $75 billion. SpaceX hopes to become the first company to send people to Mars. In fact, part of Musk’s future compensation depends on SpaceX eventually establishing a colony of at least 1 million people on the red planet.

Why SpaceX is going public now

In a video conference on Musk's social media platform X, he told JPMorgan CEO Jamie Dimon that people have suggested for the last 10 years that he take SpaceX public. He's doing it now because the company plans to put 100,000 next-generation Starlink satellites into orbit. Deploying AI data centers in space is a “massive new growth base and you need capital for that,” he said.

Going public provides access to the capital that SpaceX needs. But it also exposes it to more scrutiny from shareholders and more regulatory oversight. That includes filing quarterly financial reports, which critics say incentivizes short-term thinking over longer-term planning and creates unnecessary costs for a company. Securities regulators are currently soliciting public comment on a proposal to require public companies to file the financial reports only twice every year.

How the IPO impacts the company

Musk will hold the majority of a special class of shares, giving him control over decisions related to company strategy, finances and personnel. On the latter, because of his ownership of most of these Class B shares, the only person who can fire Musk as CEO is Musk.

The company credits Musk with being the “driving force” behind its growth, innovation and success. But what happens if Musk is no longer in the picture? SpaceX warns that the loss of Musk could disrupt its ability to execute its strategy as well as hurt its “reputation and relationships with customers, partners and other stakeholders.”

The company also warns that finding a replacement with the same skills and experience as Musk would be time-consuming, if not nearly impossible. As Wedbush Securities analyst Dan Ives wrote Wednesday, “At the end of the day Musk is SpaceX and SpaceX is Musk.”

What could make or break SpaceX

Currently in the test phase, the gigantic reusable Starship rocket is key to SpaceX realizing Musk's ambitions. Much of the commercial space business hinges on SpaceX developing Starship’s capability to be fully reusable and hearty enough for a quick turnaround between flights. If that doesn't happen, SpaceX warns that putting data centers and satellites in space will take longer and cost more money, meaning it risks customers bailing on the company.

Analysts say that by pioneering reusable rockets, SpaceX has established a clear lead on competitors such as Blue Origin, led by Amazon founder Jeff Bezos. The Starlink satellite business competes with, among others, AST SpaceMobile – which is relying on a SpaceX rocket to send its latest generation of satellites into orbit next week.

The prospectus filed last week says SpaceX’s biggest potential market is the sale of business-oriented artificial intelligence products designed to transform how people get work done. It’s an opportunity SpaceX predicts would be worth $22.7 trillion if it could somehow dominate rivals like Anthropic, OpenAI and Microsoft in a highly competitive industry. But the prospectus shows no clear path to profitability for the xAI business, which merged with SpaceX earlier this year.

Why Wall Street is paying attention

If the SpaceX IPO is as successful, the stock could quickly join the Nasdaq 100, a widely followed index that tracks the 100 largest non-financial companies in the composite. That's important because some popular funds, such as the $460 billion QQQ exchange-traded fund, mimic the index and will automatically buy whatever is listed in the index.

Nasdaq recently changed its rules to allow select companies to enter the Nasdaq 100 after just 15 trading days.

S&P Dow Jones Indices, on the other hand, is sticking to established and more traditional thresholds that will not allow SpaceX or other companies with gargantuan IPOs faster entry into its S&P 500 index. That means even high-profile companies will still need to wait for their stocks to trade a full 12 months before they can enter the index.

Companies want to be in the S&P 500 in particular because it's arguably the most important index on Wall Street, with trillions of dollars either mimicking it exactly or benchmarked against it. Vanguard's VOO fund that tracks the S&P 500 has roughly $950 billion invested in it, for example.

NASA unveils Artemis III astronauts at Johnson Space Center in Houston

To the moon

NASA on Tuesday, June 9, revealed the crew for its Artemis III mission, the next step in the space agency's plan to eventually land astronauts on the moon.

The announcement came two months after Artemis II's record-breaking trip around the moon that surpassed the distance record of Apollo 13.

NASA's Randy Bresnik, Frank Rubio, Andre Douglas and the European Space Agency's Luca Parmitano won't fly to the moon or land on the surface. Instead, they’ll orbit Earth while practicing docking their Orion capsule with two lunar landers.

“To the Artemis III crew, we wish you Godspeed on the journey ahead,” said NASA administrator Jared Isaacman.

Elon Musk’s SpaceX and Jeff Bezos’ Blue Origin are racing to deliver the lunar landers. The two-week demo is targeted for 2027. Blue Origin suffered a recent setback when its massive rocket exploded during an engine-firing test on the launch pad in Florida, shaking nearby homes and illuminating the sky with an orange fireball.

NASA's Jeremy Parsons said the setback is a learning opportunity and that the space agency is confident Blue Origin's rocket will be ready in time.

NASA's Artemis program aims to return astronauts to the moon's surface for the first time since the 1970s. A recent revamp of the program announced by Isaacman aims to fast-track it similarly to the Apollo era, adding the upcoming spaceflight around Earth before eyeing a lunar landing in 2028.

“We are certainly humbled as a crew to be able to be your crew that executes this Artemis III mission in space,” said Bresnik, Artemis III commander.

Added Douglas, mission specialist: “My brain — it is going a mile a minute right now. But my heart, it is so warm. It is so full."

In May, NASA awarded hundreds of millions of dollars in contracts to four companies, including Blue Origin, to build landers, rovers and drones for a future moon base. Isaacman said the goal of the moon base is to lay the foundation for a Mars expedition.