A Houston tech startup launches a crowdfunding campaign — and more local innovation news. Photo courtesy of The Postage

The Houston innovation ecosystem has been bursting at the seams with news from innovative tech companies and disruptive Houston startups as we fly through the final quarter of 2021.

In this roundup of short stories within Houston innovation, a Texas energy tech company gets selected for a prestigious program, a med device company heads to clinical trials, a startup launches a crowdfunding campaign, and more.

The Postage launches crowdfunding campaign

The Postage is looking for financial support with its new campaign. Photo courtesy of The Postage

The Postage, a Houston-based, full-service digital platform to help organize affairs to make after-life planning a smoother process for families, has announced the launch of a crowdfunding campaign through MicroVentures.

"This crowdfunding offering is selling crowd notes to raise maximum offering proceeds of $500,000 with a minimum investment of $100," according to a news release. "We currently anticipate closing this offering on April 4, 2022."

More information on this offering can be found at: https://invest.microventures.com/offerings/the-postage.

Emily Cisek co-founded the company after she experienced an overwhelming experience following a death in her family.

"I just knew there had to be a better way, and that's why I started The Postage," Cisek says on an episode of the Houston Innovators Podcast. "My background had historically been in bringing offline businesses online, and I started doing some research on how I could make this space better. At the time, there really wasn't anything out there."

Texas company selected for Chevron Technology Ventures Catalyst Program

This Texas company has joined CTV's startup program. Photo via Getty Images

SeebeckCell Technologies, while based in Arlington, Texas, is no stranger to the Houston innovation ecosystem. The startup was in the first class of the Rice Alliance Clean Energy Accelerator, participated in the MassChallenge Texas Houston cohort, and is a member at Greentown Houston. The company announced earlier this month a new Houston association as it was invited to participate in the Chevron Technology Ventures Catalyst Program to develop further their technology platform designed to recover industrial waste heat energy, increasing energy consumption efficiency, and eliminating battery replacement in IoT applications, according to a news release.

"SeebeckCell is excited to be supported by Chevron, a technology leader in the energy market," says Ali Farzbod, co-founder and CEO of Seebeckcell Technologies, in the release. "This is inspiring hope in the scientific community as we see Chevron continue to back commercializing academically developed technologies that provide potential solutions for addressing climate change. Through collaboration and partnership, we're able to grow our startup and we're grateful for participating in the Rice Alliance Clean Energy Accelerator that helped connect us with Chevron."

SeebeckCell Technologies is helping petroleum and gas industries and emerging markets solve energy waste with an innovative liquid based thermoelectric generator.

VenoStent heads to clinical trials

VenoStent

VenoStent has reached the clinical trials stage. Photo via venostent.com

VenoStent Inc. has announced successful enrollment in its initial feasibility clinical trial. The med device startup is a tissue engineering company that's developing smart polymer wraps to transform the efficacy of the vascular surgery industry, which sees five million operations each year.

"We are very pleased to announce that we have successfully enrolled twenty end-stage renal disease patients in our initial feasibility study taking place in Asuncion, Paraguay," says Tim Boire, CEO., in a news release "After years of development, we are confident that our bioabsorbable wrap technology can have a positive impact on the lives of patients that require hemodialysis to sustain life. This is a major milestone toward our mission to improve the quality and length of life for end-stage renal disease patients, as well as others needing vascular surgery."

VenoStent is an alum of TMC Innovation's accelerator and has been named a most promising company by Rice Alliance.

Cart.com announces latest partnership

Cart.com has a new partner, which has increased access to tools for its clients. Photo via cart.com

Houston-based Cart.com, an end-to-end ecommerce services provider and Amazon competitor, has announced yet another new partnership. The company has teamed up with Extend, which provides modern extended warranties and product protection plans. The partnership means that Cart.com merchants have access to a new revenue stream and new ways to increase customer satisfaction by leveraging Extend's platform and technology-enabled proprietary insurance stack.

"Like Cart.com, Extend is fixing the fractured ecommerce ecosystem by providing a truly innovative, effortless, and easy-to-understand service for both merchants and their customers," says Omair Tariq, Cart.com co-founder and CEO, in a news release. "By creating seamless solutions to serve brands, we empower them to focus completely on their customers. The partnership with Extend fits squarely in this view; anyone who has wrangled with extended warranty claims in the past understands the friction involved. Extend is rewriting the rules for product protection and customer service while Cart.com takes care of everything from the factory floor to the customer door. Through this partnership with Extend, we're now seamlessly covering the post-purchase experience too."

Extend launched in 2019 — a time when only the top 1 percent of merchants could offer extended warranties and protection plans to help their customers, according to the release. Now, Extend is valued at $1.6 billion, has raised over $315 million in venture capital, is on track to sell more than three million protection plans in 2021.

"The relationship between an ecommerce company and its customer doesn't end with the sale," says Woodrow Levin, co-founder and CEO of Extend, in the release. "Our technology will allow Cart.com's clients to continue to engage customers after they make a purchase, unlocking opportunities to increase brand loyalty, open new revenue channels, and create lasting customer relationships. Together, we're empowering clients to deliver a better experience for customers and we are excited to continue to build on that vision."

Campus Concierge rebrands to Clutch with revamped website

A Houston startup has just flipped a switch. Image via thatsclutch.com

Campus Concierge is now Clutch, the Houston-based startup announced on its Facebook page last month. The new name also came with a revamped website.

Madison Long and Simone May had the idea for the company when they were undergraduate students at Purdue University and their only option for scoping out basic services — like getting their hair done or hiring a DJ for an event or a photographer for graduation photos — was to ask around among older students. Launched earlier this year, the platform is a marketplace to connect students who have skills or services with potential clients in a safe way. The company, which was a member of DivInc's inaugural Houston accelerator, launched on three college campuses this year — Texas Southern University, Rice University, and Prairie View A&M.

"Building community is so critical given the fact that it's nerve-wracking any time to ask someone for help — especially now that you are coming back to school after a year of being virtual," Long, CEO and co-founder of Clutch, previously told InnovationMap.

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These 5 trailblazing Houston startups are leading the energy transition

meet the finalists

Houston is home to a growing number of startups reshaping what it means to be called the "Energy Capital of the World."

As part of the 2026 Houston Innovation Awards, our Energy Transition Business category honors those innovative startups that are providing solutions within renewables, climatetech, clean energy, alternative materials, circular economy and more.

Five clean energy startups have been named finalists for the 2026 award. The finalists, selected by our esteemed panel of judges, range from a lower-emission steel producer to a diagnostics platform developer working to support batteries used in data centers.

Read more about these innovative businesses, their initiatives, and their inspirational founders below. The 2026 winners will be announced on InnovationMap.com in mid-November.

Capwell Services

Methane capture company Capwell Services works to eliminate vented oil and gas emissions economically for operators. According to the company, methane emissions are vented from most oil and gas facilities due to safety protocols, and operators are not able to capture the gas cost-effectively, leading operators to emit more than 14 million metric tons of methane per year in the U.S. and Canada. Founded in 2022, Capwell specializes in low and intermittent flow vents for methane capture.

The company began as a University of Pennsylvania senior design project led by CEO Andrew Lane. It has since participated in programs with Greentown Labs, the Rice Clean Energy Accelerator and the Creative Destruction Lab Energy Cohort at Texas A&M University. The company moved to Houston in 2023 and raised a pre-seed round. It deployed two commercial units this year, according to its application.

FlowCellutions

Energytech startup FlowCellutions is developing a chemistry-agnostic diagnostics platform for flow and metal-air batteries supporting data centers and critical infrastructure. The platform is designed to help reduce operating costs, prevent failures and costly downtime, and extend battery lifetime from approximately seven years to more than 30 years. It has deployed four paid pilots and plans to take insights from the programs to develop its next-gen sensor platform technology.

CEO Becca Segel founded the company in 2022. It is a member of Greentown Labs, and Segel was a 2025 Activate Fellow. The company has raised over $2 million in non-dilutive funding and received a $1.5 million NSF SBIR Fast-Track award earlier this year.

Hertha Metals

Hertha Metals produces lower-cost, lower-emission steel and high-purity iron. The company has developed a single-step process that uses natural gas as a direct reductant instead of metallurgical coal, which cuts production costs by more than 25 percent and emissions by up to 50 percent, according to the company. The same process produces high-purity iron needed for high-purity steels and rare earth magnets. The company says it aims to "re-industrialize America’s production of critical materials."

Hertha Metals was founded by CEO Laureen Meroueh in 2022 and emerged from stealth last year with more than $17 million in venture capital funding. The company closed a $133.65 million Series A this month and also broke ground on its $100M high-purity iron factory known as Chalyx in Conroe.

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.

Founded in 2019 by CEO Aaron Fitzgerald, CTO Kristian Gubsch, and vice president of operations Trey Sheridan, the company has secured over $7.2M in financing and is backed by Bill Gates’ Breakthrough Energy, Shell, Black & Veatch, and other organizations. It won in the Minority-founded Business Category in last year's Houston Innovation Awards.

Solidec

Chemical manufacturing company Solidec has developed autonomous generators that extract molecules from water and air and convert them into pure chemicals and fuels that are free of carbon emissions on-site, eliminating the need for transport, storage, and permitting. The company was founded around innovations developed by Rice University associate professor Haotian Wang.

The company was selected for the Chevron Technology Ventures’ Catalyst Program, Greentown Labs, NSF I-Corps and was part of the first cohort of the Activate Houston program. It won first place at the 2024 startup pitch competition at CERAWeek. Solidec was founded in 2023 by Wang, who serves as an advisor, CEO Ryan DuChanois, and CTO Yang Xia. It closed a $2.5 million seed round in 2025.

Houston businessman and philanthropist to receive legendary Texas award

Making History

The Texas State History Museum Foundation (TSHMF) has set the date for its 23rd annual Texas Independence Day Dinner and unveiled the 2027 recipients of its prestigious History-Making Texan Award, which includes a prominent Houston businessman.

Since 2005, the organization has honored "living Texas legends whose contributions to the state and the nation have been truly historic and exceptional in scope and nature." Past galas have recognized prominent Texas figures such as former presidents George H.W. and George W. Bush and former first ladies Barbara and Laura Bush, as well as H-E-B chairman Charles Butt, among others.

The two 2027 History-Making Texan Award recipients are Texas Historical Commission chairman, businessman, and philanthropist John L. Nau, III, and trailblazing Texas actor, director, producer, and writer Taylor Sheridan. The 2027 gala will be held at the Bullock Texas State History Museum in Austin on March 2, Texas Independence Day.

"Our honorees are national leaders whose accomplishments have elevated Texas’ distinctive place on the national and international stage," Debbie Raynor, dinner chair and TSHMF Trustee, said in a statement. "John L. Nau, III and Taylor Sheridan have each, in very different ways, helped tell the Texas story — one through the preservation of our history and treasured places, the other through the power of storytelling that has brought Texas and the American West to audiences around the world.

"Nau is the former chairman and CEO of Silver Eagle Beverages, one of the largest Anheuser-Busch distributors in the U.S. He has served as chairman of the Texas Historical Commission since 2015. Raynor said Nau's "commitment to preservation" extends further than his protection of Texas historic sites "to the stewardship and conservation of the land itself, including his bay area lodge in South Texas and his ranch in West Texas.

"[Nau's] leadership and lifelong dedication to history have earned him national recognition, but perhaps his greatest legacy is his determination to ensure that the stories and places that shaped Texas endure for generations to come," Raynor said.Quadruple-threat filmmaker Sheridan is most widely recognized for his award-winning neo-Western TV series Yellowstone and its associated spin-offs 1883, 1923, Marshals, and Dutton Ranch. Raynor hailed Sheridan for his success in bringing a "remarkable new dimension to the way the world sees Texas and the American West."

"As a creator, writer, director, and executive producer of some of television’s most successful series, he has captured the imagination of audiences across the globe while bringing the people, landscapes, traditions and enduring spirit of the West into millions of homes," she said. "And he does more than tell the Texas story — he lives it, as a native Texan, accomplished horseman and steward of two legendary Texas ranches."

A release estimates about 450 "business, political, and community leaders" attend the Texas Independence Day Dinner each year, and proceeds will benefit the Bullock Museum's educational programs and special projects.

The 2027 Texas Independence Day Dinner will take place March 2, 2027, at the Bullock Museum in Austin. A VIP reception will start at 6:30 pm, followed by a 7 pm reception, and 7:30 dinner and program.

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This article first appeared on CultureMap.com.

Houston bio-based materials startup breaks into footwear

cleaner shoes

A more sustainable shoe can’t be built on a single material swap. From the hard plastics hidden inside a heel to the material covering a sneaker’s upper, footwear is a collection of components—and each presents a different challenge for companies trying to move away from conventional, petroleum-based materials.

Houston-based Rheom Materials wants to change that equation. The biomaterials company has launched a sustainable footwear platform featuring two of its bio-based alternatives: Benree, a biodegradable plastic designed for hard internal components, and ShoraiDura, a durable leather alternative for footwear uppers.

“A shoe is not one material; it is multiple parts working together as a system. Substituting a single material has never moved the needle,” Rheom founder and CEO Zimri Hinshaw said in a news release. “Rheom wants to make it easier for brands to make a positive impact. By providing an assortment of bio-based materials, brands can change the system, not just a swatch of it.”

Benree is Rheom’s alternative to conventional hard plastics used in footwear construction. The company says it is a 100 percent USDA-certified bio-based, biodegradable material with performance comparable to acrylonitrile butadiene styrene (ABS), a widely used engineering plastic.

The material has passed SATRA testing for high-heel applications with Bared Footwear, an Australian footwear brand.

“At Bared, we're constantly on a journey to remove plastic from our shoes. At the same time, our brand won't compromise on quality for the end customer,” Millie Richards, Bared’s head of sustainability, added in the release. “From samples and testing, Rheom has proven to be solving both of those problems for us. We look forward to seeing how they develop as a company and would love to use them in our shoes.”

Rheom says it is also exploring Benree for additional internal components, including toe puffs and heel counters.

Rheom's Benree material was used for a high-heel prototype. Photo courtesy Rheom Materials

The company’s ShoraiDura material addresses another major part of shoe construction: the upper, which must withstand repeated flexing, friction and wear while maintaining its appearance.

Containing about 80 percent bio-based content, ShoraiDura is engineered as a durable leather alternative for footwear. Rheom says the material’s molecular structure is designed to deliver the strength and durability required for demanding applications.

To demonstrate how the material could be used in finished products, Rheom worked with a Los Angeles-based footwear manufacturer to create two prototypes: an athletic sneaker and a textured skater shoe, both featuring ShoraiDura uppers.

The two offerings reflect the company’s broader strategy. Rather than asking brands to evaluate a single material in isolation, Rheom is positioning its platform as a way to explore alternatives across different parts of footwear construction.

The next step is broader industry adoption. Benree’s testing with Bared Footwear and ShoraiDura’s footwear prototypes offer early examples of how the materials could be applied, while commercial use will depend on manufacturers’ evaluations and product-development decisions.

Rheom Materials is a Houston-based biomaterials company developing bio-based alternatives to petrochemical plastics. Its product portfolio includes Shorai, a leather alternative, and Benree, a hard plastic alternative.

The company debuted Shorai at the Houston Livestock Show and Rodeo in 2025 and showed a bio-based "leather" collection in Milan earlier this year. Read more here.