The Ion announces new tenants that have recently moved in, expanded within the hub

moving in

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.”

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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

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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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Houston booms as No. 2 U.S. metro for new home construction

Construction Boom

Driven by population growth, more residential rooftops are popping up across Houston and the rest of Texas than anywhere else in America.

Using data from the U.S. Census Bureau and Zillow, Construction Coverage found 65,747 new residential units were authorized in greater Houston in 2024. That figure landed Houston in second place among major metro areas for the total number of housing permits, including those for single-family homes, apartments, and condos.

Just ahead of Houston was the Dallas-Fort Worth Metroplex, which took first place with 71,788 residential permits approved in 2024. In third place was the country’s largest metro, New York City (57,929 permits).Elsewhere in Texas, the Austin metro ranked sixth (32,294 permits), and the San Antonio metro ranked 20th (14,857 permits).

Construction Coverage also sorted major metro areas based on the number of new housing units authorized per 1,000 existing homes in 2024. Raleigh, North Carolina, held the No. 1 spot (28.8 permits per 1,000 existing homes), followed by Austin at No. 2 (28.6), DFW at No. 3 (22.2), Houston at No. 4 (21.6), and San Antonio at No. 13 (13.6).

A Newsweek analysis of Census Bureau data shows building permits for 225,756 new residential units were approved in 2024 in Texas — a trend fueled largely by activity in DFW, Houston, Austin, and San Antonio. That put Texas atop the list of states building the most residential units for the year.

Through the first eight months of last year, 145,901 permits for new residential units were approved in Texas, according to Census Bureau data. That’s nearly 80,000 permits shy of the 2024 total.

Among the states, Construction Coverage ranks Texas sixth for the number of residential building permits approved in 2024 per 1,000 existing homes (17.9).

Extra housing is being built in Texas to meet demand spurred by population growth. From April 2020 to July 2024, the state’s population increased 7.3 percent, the Census Bureau says.

While builders are busy constructing new housing in Texas, they’re not necessarily profiting a lot from homebuilding activity.

“Market conditions remain challenging, with two-thirds of builders reporting they are offering incentives to move buyers off the fence,” North Carolina homebuilder Buddy Hughes, chairman of the National Association of Home Builders, said in a December news release. “Meanwhile, builders are contending with rising material and labor prices, as tariffs are having serious repercussions on construction costs.”

5+ must-know application deadlines for Houston innovators

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Editor's note: As 2026 ramps up, the Houston innovation scene is looking for the latest groups of innovative startups that'll make an impact. A number of accelerators and competitions have opened applications. Read below to see which might be a good fit for you or your venture. And take careful note of the deadlines. Please note: this article may be updated to include additional information and programs.

Did we miss an accelerator or competition accepting applications? Email innoeditor@innovationmap.com for editorial consideration.

2026 HCC Business Plan Competition

Deadline: Jan. 26

Details: HCC’s annual Business Plan Competition (BPC) is an opportunity for proposed, startup and existing entrepreneurs to develop focused plans to start or grow their businesses. Accepted teams will be announced and training will begin in late February and run through early June, with six free, three-hour training sessions. Advising will be provided to each accepted team. Applicants can apply as a team of up to five persons. Finalists will present to to gudges on May 27, 2026. Last year, $26,000 was awarded in seed money to the top five teams. In-kind prizes were also awarded to all graduating teams including free products, services and memberships, with an estimated in-kind value totaling $147,000. Find more information here.

University of Houston Technology Bridge Innov8 Hub (Spring 2026)

Deadline: Jan . 30

Details: UHTB Innov8 Hub’s immersive, 12-week startup acceleration program designed to help early-stage founders launch and scale their technology startups. Selected participants will gain access to expert mentors and advisors, collaborate with a cohort of peers, and compete for cash prizes during our final pitch event. The cohort begins Feb. 16, 2026. The program culminates in Pitch Day, where participants present their ventures to an audience of investors and partners from across the UH innovation ecosystem. Find more information here.

Rice Business Plan Competition 2026

Deadline: Jan. 31

Details: The Rice Business Plan Competition, hosted by the Rice Alliance for Technology and Entrepreneurship, gives collegiate entrepreneurs real-world experience to pitch their startups, enhance their business strategy and learn what it takes to launch a successful company. Forty-two teams will compete for more than $1 million in cash, investments and prizes on April 9-11, 2026. Find more information here.

Rice Veterans Business Battle 2026

Deadline: Jan. 31

Details: The Rice Veterans Business Battle is one of the nation’s largest pitch competitions for veteran-led startups, providing founders with mentorship, exposure to investors and the opportunity to compete for non-dilutive cash prizes. The event has led to more than $10 million of investments since it began in 2015. Teams will compete April 8-9, 2026. Find more information here.

TEX-E Fellows Application 2026-2027

Deadline: Feb. 10

Details: The TEX‑E Fellowship is a hands-on program designed for students interested in energy, climate, and entrepreneurship across Texas. It connects participants with industry mentors, startup founders, investors and academic leaders while providing practical, "real-world" experience in customer discovery, business modeling, and energy-transition innovation. Fellows gain access to workshops, real-world projects, and a statewide network shaping the future of energy and climate solutions. Participants must be a student at PVAMU, UH, UT Austin, Rice University, MIT or Texas A&M. Find more information here.

Greentown Go Make 2026

Deadline: March 10

Details: Greentown Go Make 2026 is an open-innovation program with Shell and Technip Energies. The six-month program is advancing industrial decarbonization by accelerating catalytic innovations. Selected startups will gain access to a structured platform to engage leadership from Shell and Technip Energies and explore potential partnership outcomes, including pilots and demonstrations. They’ll also receive networking opportunities, partnership-focused programming, and marketing visibility throughout the program. The cohort will be selected in May. Find more information here.

Houston startups closed $1.75 billion in 2025 VC funding, says report

by the numbers

Going against national trends, Houston-area startups raised 7 percent less venture capital last year than they did in 2024, according to the new PitchBook-NVCA Venture Monitor report.

The report shows local startups collected $1.75 billion in venture capital in 2025, down from $1.89 billion the previous year.

Houston-based geothermal energy company Fervo Energy received a big chunk of the region’s VC funding last year. Altogether, the startup snagged $562 million in investments, as well as a $60 million extension of an existing loan and $45.6 million in debt financing. The bulk of the 2025 haul was a $462 million Series E round.

In the fourth quarter of last year, Houston-area VC funding totaled $627.68 million. That was a 22 percent drop from $765.03 million during the same period in 2024. Still, the Q4 total was the biggest quarterly total in 2025.

Across the country, startups picked up $339.4 trillion in VC funding last year, a 59 percent increase from $213.2 trillion in 2024, according to the report. Over the last 10 years, only the VC total in 2021 ($358.2 trillion) surpassed the total from 2025.

Nationwide, startups in the artificial intelligence and machine learning sector accounted for the biggest share of VC funding (65.4 percent) in 2025, followed by software-as-a-service (SaaS), big data, manufacturing, life sciences and healthtech, according to the report.

“Despite an overall lack of new fundraising and a liquidity market that did not shape up as hoped in 2025, deal activity has begun a phase of regrowth, with deal count estimates showing increases at each stage, and deal value, though concentrated in a small number of deals, falling just [8 percent] short of the 2021 figure,” the report reads.

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