Houston energy tech startup incubator secures federal support to accelerate tech entrepreneurship

seeing green

Greentown Houston has received funding from the EDA. Photo via GreentownLabs.com

Sixty organizations across the country have received a grant from the United States Department of Commerce — and one recipient is based in Houston.

Greentown Labs, dual located in Houston and Somerville, Massachusetts, has received a grant from the 10th cohort of the Economic Development Administration's “Build to Scale” program for its Houston location. The $53 million of funding was awarded to 60 organizations across 36 states, the District of Columbia, and Puerto Rico. All of the programs support technology entrepreneurs across industries.

“The Biden-Harris Administration is Investing in America to help create entrepreneurial ecosystems across the country and put quality, 21st century job opportunities in people’s backyards,” Secretary of Commerce Gina Raimondo says in the press release. “The ‘Build to Scale’ program will unlock innovation potential in regions all over the nation, improving our economic competitiveness now, and for decades to come.”

According to the EDA, Greentown, located in a growing innovation district, will receive $400,000 with a $400,000 local match confirmed. The project, named Houston Ion District Investor Activation, is described as a way to create economic opportunity through equitable capital access.

"This project capitalizes on the need for jobs and economic development, especially in communities most vulnerable to the impacts of natural disasters," reads the project abstract. "EDA funding will enable the expansion of Greentown’s Investor Program into EDIJ, in partnership with the Ion, to further climate equity and resilience in Houston and empower underrepresented entrepreneurs as the city transitions from fossil fuels to a clean energy economy."

Greentown receives of of the 2023 Capital Challenge Grant Recipients. The other competition, the Venture Challenge, also awarded funding to another Houston organization. The Urban Partnerships Community Development Corporation received $741,925 to support the BioWell Start Accelerator Program, which is committed to scaling of bio-industrial startups.

“EDA is proud to partner with this year’s ‘Build to Scale’ grantees as they fuel regional innovation hubs and technology-based economic development strategies throughout the U.S.,” Assistant Secretary of Commerce for Economic Development Alejandra Y. Castillo says in the release. “Investing in scalable startups and expanding access entrepreneurial capital will yield good-paying jobs, economic resiliency, and equitable growth in communities throughout America.”

------

This article originally ran on EnergyCapital.

From Your Site Articles
The Ion has fresh funds to commit to its accelerator programs. Courtesy of Rice University

The Ion receives $1.5M economic development grant to go toward Houston accelerator programs

accelerating accelerators

The Ion — a rising hub for innovation being developed in Midtown by Rice Management Company — has received a $1.5 million grant to go toward supporting its startup accelerator programs.

The grant from the Economic Development Administration is a part of the organization's Build to Scale (B2S) program and will also benefit three accelerators: the Ion Smart and Resilient Cities Accelerator, the Rice Alliance Clean Energy Accelerator, and DivInc Accelerator.

"Receiving this grant is a big win for our city — furthering the Ion's opportunity to bring together leading minds to solve some of our toughest challenges," says Brad Burke, managing director of the Rice Alliance, in a news release from Rice. "We believe that it's a fully collaborative approach that will lead to accelerating energy innovation and sustainable solutions."

All three of these accelerators will be represented in The Ion's Accelerator Hub and will work in collaboration, according to the release, in The Ion, which is expected to open in 2021 with cohorts set to open applications in early 2021.

"We are really excited about working together with DivInc and the Rice Alliance for Technology and Entrepreneurship to realize the full potential of the opportunities that these funds will help unleash," says Jan Odegard, interim executive director of the Ion, in the release.

The Ion Smart and Resilient Cities Accelerator has cycled through two rounds of cohorts — first focusing on resilience and mobility in Cohort 1 then air quality, water purification, and other cleantech in Cohort 2.

The 12-week Clean Energy Accelerator was only recently announced by The Rice Alliance for Technology and Entrepreneurship at the annual Energy Tech Venture Forum earlier this month. The program is established to support Houston Mayor Sylvester Turner's Climate Action Plan.

Meanwhile, DivInc's accelerator comes out of a partnership with the Austin-based nonprofit and The Ion, which was announced in spring of this year. The goal with this program is to increase access to minority entrepreneurs.

"DivInc embodies the mindset that this generation and all the generations of innovators to follow must be inclusive of people of color and women entrepreneurs – who will build successful scalable growth companies to address tomorrow's challenges and opportunities," says Preston James, chief executive officer at DivInc, in the release.

"By removing the barriers that currently exist, we unleash this untapped potential and lift Houston to new economic heights. To do this we must establish strong collaboration with partners like The Ion, Rice University, the EDA and many others."

Ad Placement 300x100
Ad Placement 300x600

CultureMap Emails are Awesome

Property Showcase

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.

---

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.

View All Listings