Houston-based Topl has raised over $700,000 in its seed round. Getty Images

Kim Raath is pretty proud of her company right about now. Not only is she proud that her startup, Topl, a blockchain network with applications across industries, closed a 20 percent oversubscribed $700,000 seed round, but because she did it in a way that was directly in line with her company's values.

"Every investor that is invested now has focused on both the purpose and the profit, and I'm big on that," Raath, president and co-founder of Topl, says.

Houston-based Topl was created by a few Rice University graduates and doctoral students — Raath, Chief Technology Officer James Aman, and CEO Chris Georgen. The founders wanted to create a way to track impact in various industries, such as carbon footprints in oil and gas or fair wages for farmers in agriculture.

The team has built six blockchain platforms that operate on the Topl network — two are live now, and four will go live later this year. The platforms are focused on four different areas: agriculture (tracking food products from the farm to the shelves), mining (diamonds, for instance), sustainability and impact (tracking a program to see how it succeeds), and carbon credits and renewables within the energy industry.

"It's a validation time for us," Raath tells InnovationMap. "With two platforms already live and collecting transaction fees, we are now at a point where there are actual blockchain transactions happening on our network."

The fact that Topl's technology is already up and running is rare. For this reason, Raath says she has to focus a lot on educating investors, clients, and the rest of the community — something that's really important to her.

"In the blockchain space, there are not a lot of real applications live anywhere," Raath says. "A lot of people are selling ideas that can be built on blockchains, but have not executed yet."

Topl partnered with European NGO Fairfood to create an agricultural blockchain platform that currently is live. Shoppers in the Netherlands can buy a pack of nutmeg and track the product's progress from the farmer who grew and sold the spice. The other already launched platform is focused on sustainability. Topl worked with the Texas Coastal Exchange to create a carbon credit marketplace that can sell carbon offsets generated through the natural carbon sequestration activities of land the organization holds along the Texas coast.

"For us this round is taking these four spaces and validating ourselves, proving out volume, the blockchain's ability, and then, the big thing is, to build out our next version of our blockchain," Raath says.

Raath says the fundraising round was different from what she expected, but she's excited about her investors. Seventy percent of the round was raised by Houstonians, and 40 percent of the investors were women, she says. Topl also had investor interest across industries and backgrounds — from Rice University professors to former banking execs.

The round doesn't technically have a lead investor, but Samantha Lewis, director at the GOOSE Society of Texas, led a syndicate of investors that made up more than 40 percent of Topl's round. Lewis says the round was too early stage for something GOOSE investors would typically contribute to, but she believes in the company so much that she worked nights and weekends to accomplish some of the things a lead investor would do during a raise.

"Since this was their first big round that they raised, I stepped in to help advise them — thinking about the terms, strategic investors, how to pitch to different people, if they needed to oversubscribe, and little details like that," Lewis says. "Through working with them in this way, I was doing diligence with them, and I got really excited about it."

Lewis, who volunteers a lot within the Rice network, met Raath through Georgen and the two hit it off. Lewis was then able to bring in investors from her network to contribute under her syndicate.

This passionate group of value-add investors who are personally committed to the company is what makes this seed round different for Raath. Their commitment is encouraging to her.

"I 100 percent believe that the investors in this round will not allow Topl to fail," Raath says.

With the money, Topl will be able to grow its platforms, provide better product features, and increase marketing efforts. Topl's customers are drawn to the technology because of the business efficiency the blockchain adds to their supply chain, but they are also excited about how having this technology differentiates them from their competition. Raath says she's interested in growing Topl's ability to do joint marketing campaigns with their customers.

This type of promotion leads to a growing clientbase, and Raath says she sees an overwhelming interest from potential clients. Not only is Topl creating a series of platforms in various industries, but the company itself is connecting other companies through their clients.

"Topl is not just a technology," Raath says, "it's an ecosystem."

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10 promising Houston startups that made headlines in 2025

year in review

Editor's note: As we reflect on 2025, we're looking back at the stories and startups that made waves in Houston's innovation scene. These 10 startups reached memorable milestones, won prestigious awards, found creative solutions, and disrupted their industries.

Persona AI: Houston humanoid robotics startup inks new deal to deploy its rugged robots

A concept design rendering of Persona AI's humanoid robot. The company is expanding at the Ion and plans to deliver prototype humanoids by the end of 2026 for complex shipyard welding tasks. Rendering courtesy 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 $42 million 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. The company won in the Deep Tech Business category at this year's Houston Innovation Awards. Continue reading.

Rheom Materials: Houston startup unveils its innovative leather alternative at the rodeo

Rheom Materials presented its bio-based alternative, Shorai, a 93 percent bio-based leather, at the rodeo and plans to scale it up this year. Photos courtesy Rheom Materials

Rheom Materials presented its scalable, bio-based alternative known as Shorai, a 93 percent bio-based leather, through two custom, western-inspired outfits that showed off cowboy flair through a sustainable lens at the Houston Livestock Show and Rodeo earlier this year.

Next up, the company said it aimed to scale production of Shorai, the Japanese word for “future,” at a competitive price point, while also reducing its carbon footprint by 80 percent when compared to synthetic leather. The company also made a large-scale production partnership with a thermoplastic extrusion and lamination company, Bixby International, this year. Continue reading.

Koda Health: Houston digital health platform Koda closes $7 million funding round

Tatiana Fofanova and Dr. Desh Mohan, founders of Koda Health, which recently closed a $7 million series A. Photo courtesy Koda Health.

Houston-based digital advance care planning company Koda Health closed an oversubscribed $7 million series A funding round this year. The round, led by Evidenced, with participation from Mudita Venture Partners, Techstars and Texas Medical Center, will allow the company to scale operations and expand engineering, clinical strategy and customer success. Koda Health, saw major growth this year by integrating its end-of-life care planning platform with Dallas-based Guidehealth in April and with Epic Systems in July. The company won the Health Tech Business category at the 2025 Houston Innovation Awards. Continue reading.

Veloci Running: Student-led startup runs away with prestigious prize at Rice competition

The H. Albert Napier Rice Launch Challenge awarded $100,000 in equity-free funding to student-led startups, including first-place finisher Veloci Running. Photo courtesy of Rice University.

Veloci Running took home the first-place prize and $50,000 at the annual Liu Idea Lab for Innovation and Entrepreneurship's H. Albert Napier Rice Launch Challenge. The company was founded by Tyler Strothman, a former track and field athlete and senior at Rice, majoring in sport management. Inspired by the foot pain he suffered due to the narrow toe boxes in his running shoes, Strothman decided to create a naturally shaped shoe designed to relieve lower leg tightness and absorb impact. Additional prize winners included SteerBio, Kinnections, Labshare and several others. Continue reading.

Square Robot Inc.: Houston robotics co. unveils new robot that can handle extreme temperatures

The new robot eliminates the need for humans to enter dangerous and toxic environments. Photo courtesy of Square Robot

Houston- and Boston-based Square Robot Inc.'s newest tank inspection robot became commercially available and certified to operate at extreme temperatures this fall. The new robot, known as the SR-3HT, can operate from 14°F to 131°F, representing a broader temperature range than previous models in the company's portfolio. According to the company, its previous temperature range reached 32°F to 104°F. The company also announced a partnership with downstream and midstream energy giant Marathon Petroleum Corp. (NYSE: MPC) last month. Continue reading.

Bot Auto: Houston autonomous trucking co. completes first test run without human intervention

Bot Auto completed its first test run without human assistance in Houston. Photo courtesy Bot Auto.

Houston-based Bot Auto, an autonomous trucking company, completed its first test run without human assistance earlier this year. Bot Auto conducted the test in Houston. The transportation-as-a-service startup added that this milestone “serves as a validation benchmark, demonstrating the maturity and safety of Bot Auto’s autonomy stack and test protocols.” This summer, founder Xiaodi Hou told the Front Lines podcast that Bot Auto had raised more than $45 million. Continue reading.

Nomad: Screen-free hiking app developed in Houston earns 'Best of the Best' award

NOMAD aims to help hikers stay in the moment while still utilizing technology. Photo courtesy UH.

An AI-powered, screen-free hiking system developed by Varshini Chouthri, a recent industrial design graduate from the University of Houston, received this year's Red Dot’s “Best of the Best” award, which recognizes the top innovative designs around the world. Known as NOMAD, the system aims to help users stay in the moment while still utilizing technology. Continue reading.

Little Place Labs, Helix Earth, Tempest Droneworx: Houston startups win big at SXSW 2025 pitch competition

Two Houston startups won the SXSW Pitch showcase in their respective categories. Photo via Getty Images

Houston had a strong showing at the SXSW Pitch showcase in Austin this year, with several local startups claiming top prizes in their respective categories.

Little Place Labs, a Houston space data startup, won the Security, GovTech & Space competition. Clean-tech company Helix Earth, which spun out of Rice University and was incubated at Greentown Labs, won in the Smart Cities, Transportation & Sustainability contest. Tempest Droneworx, a Houston-based company that provides real-time intelligence collected through drones, robots and sensors, won the Best Speed Pitch award. Continue reading.

6 Houstonians named to prestigious national group of inventors

top honor

Six Houston scientists and innovation leaders have been named to the National Academy of Inventors’ newest class of fellows. The award is the highest professional distinction awarded to academic inventors by the NAI.

The 2025 class is made up of 169 fellows who hold more than 5,300 U.S. patents, according to the organization. The group hails from 127 institutions across 40 U.S. states.

The Houston-based inventors are leading fields from AI to chemistry to cancer research.

“NAI Fellows are a driving force within the innovation ecosystem, and their contributions across scientific disciplines are shaping the future of our world,” Paul R. Sanberg, president of the National Academy of Inventors, said in a news release. “We are thrilled to welcome this year’s class of Fellows to the Academy. They are truly an impressive cohort, and we look forward to honoring them at our 15th Annual Conference in Los Angeles next year.”

The 2025 list of Houston-based fellows includes:

  • Vineet Gupta, Vice President for Innovation, Technology Development and Transfer at the University of Texas Medical Branch
  • Eva Harth, chemistry professor at the University of Houston
  • Dr. Raghu Kalluri, Professor and Chairman of the Department of Cancer Biology at The University of Texas MD Anderson Cancer Center
  • Sanjoy Paul, Executive Director of Rice Nexus and AI Houston and Associate Vice President for Technology Development at Rice University
  • Dr. Jochen Reiser, President of the University of Texas Medical Branch and CEO of UTMB Health System
  • Todd Rosengart, Professor and Chair of the Department of Surgery at Baylor College of Medicine

"It is a great honor to be named a Fellow of the NAI. It is deeply gratifying to know that the work my students and I do — the daily push, often in small steps — is seen and recognized," Harth added in a news release from UH.

The 2025 fellows will be honored and presented with their medals by a senior official of the United States Patent and Trademark Office at the NAI Annual Conference this summer in Los Angeles.