Houston sportstech startup shoots, scores in Pharrell Williams competition

on the rebound

GRIND won second place in Pharrell Williams' Black Ambition Prize. Photo via grindbasketball.com

Anyone who's witnessed even just a minute of basketball knows how important accuracy is in sinking shots on the court. One Houston startup has developed a device to help practice make perfect in a game.

GRIND’s portable basketball shooting machine, the first of its kind, was created by founder and CEO Thomas Fields, former basketball phenom at Houston’s Reagan High School (now Heights High School).

“I remember being on varsity as a freshman and shooting thousands of shots every day trying to be the best,” says Fields. “My school bought a shooting machine, but they never let me use it. It was a game-changing piece of equipment, and I didn’t even have access because the gyms were always closed or closing.

“And another major problem was getting your rebounds, so we set out to make a portable basketball rebounding machine, so you could take it anywhere like home, the park, or the gym. It was also important to make it affordable, too.”

The GRIND shooting machine is available online. Photo via grindbasketball.com

At just 110 pounds, the GRIND shooting machine is 54 percent lighter than other home shooting machines, has a 12-foot net, and needs just 90 seconds to set up or take down.

“Our portable shooting machine has been on the market for about three, four years now,” says Fields. “So now it's time to kind of accelerate the growth, and that’s pretty exciting. We really have our sights on NBA Africa for a partnership there. Another one is Adidas; we are collaborating with them right now and they're also one of the sponsors of Black Hat Mission. And hopefully, we would like to land some NBA guys to invest and really get behind our sportstech company, but also make a significant impact in the community by getting kids into tech through sports.”

To that end, GRIND recently won second place in a competition from Black Ambition, an organization founded by Pharrell Williams. With the tagline, “Uninterrupted ambition. Unmatched impact,” the Black Ambition Prize celebrates underrepresented founders globally.

“When I initially heard of Black Ambition, I just kind of heard that Pharrell had started a venture fund aimed at uplifting black and brown entrepreneurs,” says Fields. “And when I read more about it, I realized that their mission perfectly aligned with GRIND. Our goal is to try to get kids into tech and STEM, but use sports as the conduit and the bridge to get them there.

“We applied for the million-dollar cash prize for first place, but took second place, which is a $250,000 investment in the company. So now that Pharrell and Black Ambition are behind us, we are going out and raising some more capital to hit that hyper stage that we're going into. We are launching our software next year and our hardware has really been growing.”

Fields pitched GRIND on Shark Tank in May of 2021, where he was offered a joint deal for $250,000 for 25 percent of the company from both Mark Cuban and Barbara Corcoran. While Fields agreed on the show, the finalized terms of the deal were not disclosed.

- YouTubeThomas Fields is seeking $250000 for a 5% stake of GRIND. From Season 12 Episode 23 Watch Now: ...

As a startup, GRIND, a consumer brand developing the world’s first smart ecosystem of sports equipment products, represents the continued uptick with sportstech innovation in Houston.

“We want to revolutionize the world of sports equipment by leveraging cutting edge technology by developing sports equipment that can seamlessly connect to software, enhancing athletic performance, and pushing athletes to achieve their peak potential,” Fields says.

As GRIND continues to push forward and expand its footprint, it’s also looking to expand its customer base.

“I think the target users are middle school and high school athletes,” says Fields. “These are the kids that are striving to be great athletes and striving to get into college. We also have colleges that have our product, as well. But mostly, the customer is the parents of those athletes. That's really who we're trying to get excited.

“And then, of course, there are the coaches and trainers. They own gyms; they own organizations and need equipment for their schools and universities. That's another target customer of ours for sure.”

Ultimately, GRIND will continue to build on Fields’ initial inspiration to design products and technologies with the athletes — especially hoopers — in mind.

“Our goal in the next few years is to really amp up the scholarships that we facilitate to funnel kids into STEM tech careers and pathways,” says Fields. “GRIND Day, which is a proclamation the City of Houston gave us for August 12 each year, is a day where we bring sports, tech, and culture all under one umbrella. Kids see us using 3D printers and lasers to cut the products that we make in our warehouse, which is in an underserved community, which hopefully makes them think it’s cool and want to get into technology.”

Ad Placement 300x100
Ad Placement 300x600

CultureMap Emails are Awesome

Property Showcase

Rice University breaks ground on new innovation hub, The Arc

breaking ground

Construction is officially underway on Rice University's The Arc in Houston’s Ion District.

The university broke ground on the 200,000-square-foot research, corporate innovation and office building on Nov. 4. The facility will share a plaza with the existing Ion building, fostering collaboration within the innovation space, according to Rice.

“The Arc will bring Rice’s extraordinary research and talent and Houston’s impactful innovation ecosystem into even closer connection with the industries and innovators working to solve some of the world’s most consequential challenges,” Rice President Reginald DesRoches said in an announcement. “That constant exchange of ideas and expertise will help move discoveries more rapidly from the laboratory to real-world impact.”

Construction is scheduled to be completed by Q2 2028. Rice Real Estate Co. is developing the project, and Rice University will occupy about 80,000 square feet in the building (about 40 percent). Preleasing has begun, with floor plans ranging from 28,000 to 31,000 square feet.

The Arc will feature conference and meeting spaces, an amenity lounge, fitness center, outdoor plazas, underground parking, and on-site retail and dining, according to the release.

It aims to host tenants focused on artificial intelligence and machine learning, data science, robotics, quantum science and engineering and energy, including Rice's new AI Foundry.

Rice says the AI Foundry will be a space where university experts and partners can support organizations with AI challenges. Rice recently committed to hiring 75 new AI-focused faculty and announced plans to launch a new Master of Artificial Intelligence (MAI) next fall.

“The AI Foundry is exactly the kind of collaboration the Arc is designed to enable,” Amy Dittmar, the Howard R. Hughes Provost and executive vice president for academic affairs at Rice, added in the release. “By bringing Rice researchers together with industry partners in a shared environment, we can accelerate the movement of ideas from research into practical applications while helping organizations build the capabilities they need to succeed as AI continues to evolve.

Developers of The Arc are targeting LEED Gold certification by incorporating smart building automation and energy-saving features into the project's design. Rice first announced the project in September 2025.

Rendering courtesy Bogza

Houston battery tech startup FlowCellutions acquired by Katy energy co.

M&A

Katy-based TerraFlow Energy, an energy storage and infrastructure company, has acquired Houston-based battery technology startup FlowCellutions. Financial terms weren’t disclosed.

FlowCellutions still operates under its established name, but with the tagline “A TerraFlow Energy Company.” Becca Segel, founder and CEO of FlowCellutions, now runs the business as its president.

FlowCellutions specializes in electrochemical sensing, diagnostics, analytics, and testing that offer insights into battery chemistry, charging capabilities, and system performance.

“FlowCellutions has always been focused on developing better ways to understand what is happening inside a flow battery and using that information to improve how these systems perform,” Segal said in a press release. “Joining TerraFlow gives us the opportunity to apply that work at a much larger scale while continuing to build the capabilities and expertise that make FlowCellutions unique.”

The FlowCellutions platform supports data centers and other heavy users of power. It’s designed to help reduce operating costs, prevent failures and costly downtime, and extend battery lifetime from about seven years to more than 30 years.

Segel founded the company in 2022. A member of Greentown Labs, the company raised more than $2 million in non-dilutive funding and received $1.5 million in National Science Foundation funding earlier this year.

FlowCellutions is one of five finalists in the Energy Transition Business category of InnovationMap’s 2026 Houston Innovation Awards.

“FlowCellutions brings a depth of scientific and technical expertise that fits naturally with where TerraFlow is going,” Jon Parrella, CEO of TerraFlow, said in the release.

“As we move from developing these systems to deploying them at commercial scale, understanding performance at a deeper level matters,” he said. “Bringing FlowCellutions into TerraFlow strengthens that capability and gives both teams more opportunity to advance the technology.”TerraFlow, founded in 2024, develops long-duration energy storage and power infrastructure for data centers, industrial facilities, utilities and other large power consumers.

---

This article originally appeared on EnergyCapitalHTX.com.

3 fast-growing Houston scaleups named Innovation Awards finalists

meet the finalists

From IPOs to groundbreakings, some of Houston's most innovative companies reached major milestones this year.

As part of the 2026 Houston Innovation Awards, our Scaleup of the Year category honors innovative later-stage startups that have recently reached a significant milestone in company growth. Three scaleups have been named finalists for the 2026 award.

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

Erock

Energy infrastructure company Erock, previously known as Enchanted Rock, develops dual-purpose microgrids that rely on natural gas and renewable natural gas to produce lower carbon emissions and air pollutants than diesel generators. Its products can provide bridge power before grid interconnection, backup power during outages and dispatchable capacity that supports long-term grid reliability. The company has more than 1,100 megawatts of installed capacity and over 20 years of experience serving commercial, municipal and large-scale technology customers.

Erock completed its initial public offering this year, raising approximately $600 million in gross proceeds. It also grew its contracted power system sales backlog to approximately $1.7 billion, up tenfold year-over-year, with production sold out through 2028, according to the company's application. The company secured a major equipment order from Anthropic, began construction of the 366-megawatt El Paso Electric project supporting Meta's data center campus, and started assembly operations at its Hyperion facility in Cypress, Texas.

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.

Venus Aerospace

Spacetech company Venus Aerospace is developing a high-thrust rotating detonation rocket engine (RDRE) that replaces the subsonic combustion used in conventional rocket engines. The RDRE is a compact, simpler engine that can deliver up to 15 percent greater efficiency for defense and space applications. It completed its first U.S. flight test of the engine last summer.

Venus Aerospace was founded in 2020 by CEO Cassie Duggleby and CTO Andrew Duggleby. It raised a $20 million Series A in 2022 and $42 million Series A2 in 2025. It closed a $91 million Series B earlier this year and expanded its leadership team. The company is working toward longer-duration and higher-thrust testing and advancing its flight program.

View All Listings