The Ion has announced the latest companies to move into the hub. Photo courtesy of The Ion

Several organizations — from tech startups to a nonprofit — have moved into the Ion recently to either relocate or expand their presence in Houston.

The Ion District announced new tenants today, bringing the total space leased to 86 percent, according to a news release. The recent additions to the Ion include:

  • Carbon Clean announced its new United States HQ last month. The startup’s technology has captured nearly two million tons of carbon dioxide at almost 50 sites around the world.
  • Cognite is a Norwegian software company for asset-heavy industries that turns industrial data into customer value.
  • OpenStax, a Houston-based nonprofit, is publishing openly licensed college textbooks that are free online and low cost in print.
  • Synopic is a California-based startup that's building next-gen depth-enabled cameras to improve visualization and decision making during medical procedures.
  • Houston-based Motif Neurotech, a medical equipment manufacturing startup, is working to develop minimally invasive electronic solutions for mental health.
  • RedSwan CRE, founded in Houston, is a crowdfunding-style investment platform and marketplace of tokenized commercial real estate.
  • Nauticus Robotics, a marine robotics hardtech and software company, recently went public.
  • Rice University’s Office of Innovation and its Nexus Lab, which is under construction and designed for prototyping and scaling-up technologies, is increasing its presence in the Ion.
  • Also noteworthy is the expanded office of Ara Partners, which first moved into the Ion last year. The Houston-based, global private equity firm is focused on investing in carbon decentralization technology.
  • Dallas-headquartered flexible workspace provider Common Desk announced that it would expand its space by nearly 50 percent at the Ion last December.

“Welcoming this amazing lineup of new tenants, across the breadth of sectors they represent, demonstrates that the Ion is the place to be and do business in Houston,” says Jan E. Odegard, executive director of the Ion, in the news release. “By continuing to fill our space with new innovators across all these different offerings, from all around the globe, we’ve become the home for collisions that will create solutions to the biggest problems facing our world today.

"We pride ourselves on advancing the diverse knowledge, teams, technologies, and products that will propel our world forward. Our inspiring new tenants will do just that,” he continues.

The Ion's grand opening took place just about a year ago, and existing tenants include Chevron, Microsoft, (Schlumberger) SLB Innovation Factori, Houston Methodist. The growing Ion District is home to more than 300 businesses, including corporates, small businesses, startups, and restaurants.

“The Ion continues to see leasing demand from companies that understand the value of a creative and active work environment,” says Bryson Grover, investment manager of real estate development at Rice Management Co. “Companies are choosing Ion District because it offers more than just a solution for space needs. Workers are given the opportunity to experience a sense of community that brings together like-minded individuals and those with different perspectives.”

These three startups walked away from a pitch competition with thousands of dollars in equity-free prizes. Photo courtesy of Rice University

3 alumni-founded startups claim cash prizes at Rice University pitch competition

winner, winner

Three startups founded by Rice University graduates have won investment prizes at an annual pitch competition.

The annual H. Albert Napier Rice Launch Challenge, or NRLC, welcomed a panel of judges to hear from six alumni-founded startups in the finals last week. The prizes on the line totaled $65,000 in equity-free funding. The event, which is separate from the student version of the competition, is hosted by Rice’s Liu Idea Lab for Innovation and Entrepreneurship.

The big winner of the 2022 competition was Rhythio Medical, a preventative heart arrhythmias treatment startup. The company won first place, which included $30,000 in equity-free funding, as well as the Audience Choice Award that came with $1,500.

Taking second place, Synopic, which facilitates faster and more accurate surgical procedures through improved endoscopic vision technology, won $20,000 in equity-free funding. Lastly, Green Room, a platform that streamlines taxes and payments for touring artists, clinched third place and $15,000.

The event, named for Rice professor emeritus and entrepreneurship program founder H. Albert Napier, was sponsored by Mercury Fund, T-Minus Solutions and Chevron Technology Ventures. This year's finalists were selected by judges made up of Rice alumni. Three judges — Danielle Conkling, director at Silicon Valley Bank, Paul Manwell, senior director at Google, and Joanna Nathan, manager of new ventures at Johnson & Johnson — listened to and evaluated each company's five-minute pitch and followed up with questions.

Rhythio Medical was founded by CEO Kunal Shah, class of 2022, and Savannah Esteve, who also serves as head of product. The technology includes a surgically injected wire that makes an irregular heart work like a healthy one. It works alongside a traditional implantable cardioverter defibrillator, however, the wire but works to prevent arrhythmias, while ICDs treat arrhythmias with a painful shock to the patient’s heart. The company lists the Texas Heart Institute and the University of Texas at Austin as its research partners.

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Intuitive Machines secures $175M equity investment to fuel growth

space funding

Houston-based space infrastructure and services company Intuitive Machines has secured a $175 million equity investment from unidentified institutional investors. The investors received shares of Class A stock in exchange for their funding.

Publicly held Intuitive Machines (Nasdaq: LUNR) says it plans to use the capital to help build revenue and invest in technology, including communications and data-processing networks.

“We are building a scalable infrastructure platform from low-Earth orbit to the moon and into deep space,” Intuitive Machines CEO Steve Altemus said in a news release. “With this investment, we can accelerate the integration of the combined company’s collective capabilities to deliver next-generation data, communications, and space-based infrastructure services.”

Intuitive Machines says the $175 million investment will improve its ability to secure deals for satellite systems, the proposed Golden Dome missile defense system and the proposed Mars telecommunications orbiter.

As the company pursues those deals, it’s seeking partners to develop space-based data centers.

The $175 million equity stake comes on the heels of Intuitive Machines completing its $800 million cash-and-stock purchase of Lanteris Space Systems. Intuitive Machines bought the satellite manufacturer from private equity firm Advent International.

In the third quarter, which ended Sept. 30, Intuitive Machines posted a $10 million net loss on revenue of $52.4 million.

Houston startup debuts bio-based 'leather' fashion collection in Milan

sustainable fashion

Earlier this month, Houston-based Rheom Materials and India’s conscious design studio Econock unveiled a collaborative capsule collection that signaled more than just a product launch.

Hosted at Lineapelle—long considered the global epicenter of the world's premier leather supply chain—in the vaulted exhibition halls of Rho-Fiera Milano, the collection centered around Rheom’s 91 percent bio-based leather alternative, Shorai.

It was a bold move, one that shifted sustainability from a concept discussed in panel sessions to garments that buyers could touch and wear.

The collection featured a bomber-style jacket, an asymmetrical skirt and a suite of accessories—all fabricated from Shorai.

The standout piece, a sculptural jacket featuring a funnel neck and dual-zip closure, was designed for movement, challenging assumptions about performance limitations in bio-based materials. The design of the asymmetrical skirt was drawn from Indian armored warrior traditions, according to Rheom, with biodegradable corozo fasteners.

Built as a modular wardrobe rather than isolated pieces, the collection reflects a shared belief between Rheom and Econock in designing objects that adapt to daily life, according to the companies.

The collection was born out of a new partnership between Rheom and Econock, focused on bringing biobased materials to the market. According to Rheom, the partnership solves a problem that has stalled the adoption of many next-gen textiles: supply chain friction.

While Rheom focuses on engineering scalable bio-based materials, New Delhi-based Econock brings the complementary design and manufacturing ecosystem that integrates artisans, circular materials and production expertise to translate the innovative material into finished goods.

"This partnership removes one of the biggest barriers brands face when adopting next-generation materials,” Megan Beck, Rheom’s director of product, shared in a news release. “By reducing friction across the supply chain, Rheom can connect brands directly with manufacturers who already know how to work with Shorai, making the transition to more sustainable materials far more accessible.”

Sanyam Kapur, advisor of growth and impact at Econock, added: “Our partnership with Rheom Materials represents the benchmark of responsible design where next-gen materials meet craft, creativity, and real-world scalability.”

Rheom, formerly known as Bucha Bio, has developed Shorai, a sustainable leather alternative that can be used for apparel, accessories, car interiors and more; and Benree, an alternative to plastic without the carbon footprint. In 2025, Rheom was a finalist for Startup of the Year in the Houston Innovation Awards.

Shorai is already used by fashion lines like Wuxly and LuckyNelly, according to Rheom. The company scaled production of the sugar-based material last year and says it is now produced in rolls that brands can take to market with the right manufacturer.

Houston startup debuts leather alternative fashion collection in Milan