For years, Squid Compression has helped ease the pain of patients in doctor's offices. Now, anyone can get the treatment on the go. Photo via squidgo.com

Houston company creates portable device that eases pain without the use of drugs

No pain, just gain

Many of the estimated 50 million Americans who suffer from chronic pain turn to drugs — including heavily abused opioids — to relieve their symptoms. Houston-based startup Portable Therapeutix LLC's drug-free solution to pain management seeks to put a dent in the market for prescription painkillers.

In 2018, Houston-based Portable Therapeutix introduced Squid Go, a portable device that's designed to ease the pain and swelling of sore joints and muscles. It's a follow-up to the company's Squid Compression, a pain management device launched in 2013 for patients at rehabilitation centers, hospitals, doctor's offices, and the like.

Squid Go enables consumers to apply two approaches — cold therapy and compression therapy — to relieving joint pain and swelling caused by arthritis, bouncing back from athletic activities, or recovering from an injury or surgery involving muscles and joints. Variations of the device can treat ankle, back, leg, knee, shoulder, or wrist pain.

To reap the benefits of Squid Go, a consumer uses the device for just 15 minutes. Squid Go — which combines a cold gel pack with proprietary compression technology — features special air pockets that inflate and deflate, gently massaging the body part needing treatment. That massaging boosts circulation and reduces swelling.

"Increased circulation brings more nutrient- and oxygen-rich blood to the area, promoting recovery," says Sam Stolbun, co-founder of Portable Therapeutix. "Meanwhile, [the] gentle compression also drives the pain-relieving cold from the gel pack deeper into the tissues to alleviate soreness and discomfort."

The coldness of the gel pack fights inflammation.

Stolbun says someone can take the lightweight, portable Squid Go device to the office, to the gym or anywhere else for on-the-go pain relief. It even can be used without the cold gel pack for compression-only therapy to improve circulation and decrease swelling. The Squid Go pump delivers about 15 treatments before it needs to be recharged.

Squid Compression received clearance from the U.S. Food and Drug Administration as a prescription-only device in 2013 and gained over-the-counter status in 2014. The consumer version, Squid Go, employs the same technology and operates the same way as Squid Compression, so a second FDA stamp of approval wasn't required.

Pricing for the heavy-duty Squid Compression system starts at $700. The consumer-friendly Squid Go system goes for $300 or $350, depending on its purpose. Users can buy extra wraps and gel packs to supplement the system.

Stolbun says he and co-founder Shai Schubert developed the Squid devices after realizing that existing pain-fighting cold packs provided only superficial relief, while water-based treatments were inconvenient and offered no compression advantages. Still other cold and compression therapies on the market are expensive and generally aren't covered by health insurance, he says.

Stolbun says that "it became apparent that a reasonably priced, well-made, portable, and effective pain relief and recovery device would meet a need for a broad range of consumers — from athletes to seniors."

Stolbun, a sports enthusiast and bakery mogul, and Schubert, a scientist and entrepreneur, established Portable Therapeutix in 2011.

The company's debut product, Squid Compression, still enjoys success, but Stolbun says the company has shifted its focus to Squid Go. Portable Therapeutix plans to pump up sales for Squid Go via its online presence, he says, as well as through physical therapists, sports trainers and other professionals who've used Squid Compression but want to offer the less pricey Squid Go model to their clients for in-home treatment.

Portable Therapeutix is backed by private investors; the amount of funding it has received isn't available. The company doesn't release revenue and profit figures.

Today, the company employs just one person in Houston but will add workers as its distribution pipeline expands, Stolbun says. Sales, marketing, and customer service representatives are scattered around the country. Stolbun, the CEO, is based in Houston, while Schubert, the chief technical officer, is based in Boston.

Portable Therapeutix relies, in part, on word-of-mouth praise to promote Squid Go. Among those hailing the device is Lee Ward of Houston, who describes himself as a competitive tennis player.

On the Squid Go website, Ward explains that he'd been suffering from progressively worsening tendonitis in his knees for a couple of years.

"I tried a number of remedies, including ice and gel packs, immediately following my tennis workout, but both remedies were ineffective and difficult to use," Ward says in his online testimonial.

He then discovered Squid Go and became a fan.

"The best thing about [Squid Go] is its ease of use. It provides a quick, effective treatment that makes it ideal for daily use by both the serious and recreational athlete," Ward says.

Smart tech

Courtesy of Squid Go

Squid Go combines a cold gel pack with proprietary compression technology and features special air pockets that inflate and deflate, gently massaging the body part needing treatment.

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Houston team uses CPRIT funding to develop nanodrug for cancer immunotherapy

cancer research

With a relative five-year survival rate of 50 percent, pancreatic cancer is a diagnosis nobody wants. At 60 percent, the prognosis for lung cancer isn’t much rosier. That’s because both cancers contain regulatory B cells (Bregs), which block the body’s natural immunity, making it harder to fight the enemies within.

Newly popular immunotherapies in a category known as STING agonists may stimulate natural cancer defenses. However, they can also increase Bregs while simultaneously causing significant side effects. But Wei Gao, assistant professor of pharmacology at the University of Houston College of Pharmacy, may have a solution to that conundrum.

Gao and her team have developed Nano-273, a dual-function drug, packaged in an albumin-based particle, that boosts the immune system to help it better fight pancreatic and lung cancers. Gao’s lab recently received a $900,000 grant from the Cancer Prevention and Research Institute of Texas (CPRIT) to aid in fueling her research into the nanodrug.

“Nano-273 both activates STING and blocks PI3Kγ—a pathway that drives Breg expansion, while albumin nanoparticles help deliver the drug directly to immune cells, reducing unwanted side effects,” Gao said in a press release. “This approach reduces harmful Bregs while boosting immune cells that attack cancer, leading to stronger and more targeted anti-tumor responses.”

In studies using models of both pancreatic and lung cancers, Nano-273 has shown great promise with low toxicity. Its best results thus far have involved using the drug in combination with immunotherapy or chemotherapy.

With the CPRIT funds, Gao and her team will be able to charge closer to clinical use with a series of important steps. Those include continuing to test Nano-273 alongside other drugs, including immune checkpoint inhibitors. Safety studies will follow, but with future patients in mind, Gao will also work toward improving her drug’s production, making sure that it’s safe and high-quality every time, so that it is eventually ready for trials.

Gao added: “If successful, this project could lead to a new type of immunotherapy that offers lasting tumor control and improved survival for patients with pancreatic and lung cancers, two diseases that urgently need better treatments."

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

apply now

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.

2026 Energy Venture Day & Pitch Competition

Deadline: Feb. 13

Details: The Rice Alliance, the Houston Energy Transition Initiative (HETI) and TEX-E will present the annual Energy Venture Day and Pitch Competition during CERAWeek on March 24-25, 2026. Energy Venture Day features two days of presentations by energy tech ventures driving efficiency and advancements toward the energy transition. On March 24, the Pitch Preview at the Ion will feature over 50 companies presenting in front of Rice Alliance's robust network of investors and industry partners. On March 25, the Energy Venture Day and Pitch Competition during CERAWeek will showcase 36 ventures at the George R Brown Convention Center. The pitch competition is divided up into the TEX-E university track, in which Texas student-led energy startups compete for $50,000 in cash prizes, and the industry ventures track. The industry track is subdivided into three additional tracks, spanning materials to clean energy. The top three companies from each industry track will be named. The winner of the CERAWeek competition will also have the chance to advance and compete for the $1 million investment prize at the Startup World Cup. 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.