Houstonians are struggling the most with work-related stress, WalletHub found. Photo via Getty Images

Stress is an unavoidable part of life, but a new report by WalletHub shows Houston residents are far more stressed out than any other city in Texas.

Houston ranked No. 18 out of 182 of the largest U.S. cities based on work, financial, family-related, and health and safety stress, according to WalletHub's "Most & Least Stressed Cities in America (2024)" report. 39 relevant metrics were considered in the report, including each city's job security, the share of households behind on bills within the last 12 months, divorce rates, crime rates, among others.

Houston was ranked the most stressed out city in Texas, but it's still far less stressed than many other U.S. cities. Cleveland, Ohio took first place as the most stressed city in America, followed by Detroit, Michigan (No. 2), Baltimore, Maryland (No. 3), Memphis, Tennessee (No. 4), and Gulfport, Mississippi (No. 5).

Out of the four main categories, Houstonians are struggling the most with work-related stress, ranking No. 13 nationally. The report found Houston has the No. 1 highest traffic congestion rate out of all cities in the report. But at least Houston drivers are solidly average, as maintained by a separate Forbes study comparing the worst drivers in America.

Houston workers can rejoice that they live in a city with a generally high level of guaranteed employment, as the city ranked No. 151 in the job security comparison. The city ranked No. 16 nationwide in the metric for the highest average weekly hours worked.

Houston fared best in the financial stress category, coming in at No. 72 nationally, showing that Houstonians aren't as worried about pinching pennies when it comes to maintaining a good quality of life. The city ranked No. 39 in the comparison of highest poverty rates.

Here's how WalletHub quantified Houston's stress levels:

  • No. 17 – Health and safety stress rank (overall)
  • No. 36 – Family stress rank (overall)
  • No. 63 – Unemployment rates
  • No. 81 – Percentage of adults in fair/poor health
  • No. 95 – Divorce rate
  • No. 96 – Percentage of adults with inadequate sleep

WalletHub analyst Cassandra Happe said in the report that living in particularly arduous cities can play a big role in how stressed a person is, especially when considering uncontrollable circumstances like family problems or work-related issues.

"Cities with high crime rates, weak economies, less effective public health and congested transportation systems naturally lead to elevated stress levels for residents," Happe said.

Happe advised that residents considering a move to a place like Houston should consider how the city's quality of life will impact their mental health, not just their financial wellbeing.

Other Texas cities that ranked among the top 100 most stressed cities in the U.S. are:

  • No. 20 – San Antonio
  • No. 38 – Laredo
  • No. 41 – Dallas
  • No. 47 – Corpus Christi
  • No. 61 – El Paso
  • No. 68 – Fort Worth
  • No. 71 – Brownsville
  • No. 75 – Arlington
  • No. 78 – Grand Prairie
  • No. 88 – Garland
The full report and its methodology can be found on wallethub.com

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This article originally ran on CultureMap.

Roberta Schwartz is leading the innovation initiative at Houston Methodist. Courtesy of Houston Methodist

Meet the Houston Methodist executive at the helm of the new innovation-focused initiative

Featured Innovator

In an effort to be at the forefront of technology in the health care industry, Houston Methodist recently premiered its Center for Innovation, a group of leaders charged with finding new technologies for the hospital system for patients, physicians, and staff.

Roberta Schwartz — executive vice president, chief innovation officer, and chief executive officer of Houston Methodist Hospital — is at the helm of the initiative. After 17 years at Houston Methodist, Schwartz says she's seen the evolution of tech and is taking note of where the industry is going.

"I think we're an industry that is transforming itself. We're either going to be disrupted or we're going to do the disruption ourselves," Schwartz says. "There's nobody who knows health care better than we do, so if we're going to transform the industry, I want that transformation to come from the inside."

The hospital is instituting new pilot programs for tech advancements across the organization. Schwartz talks about the program and what she's excited about.

InnovationMap: Tell me about Houston Methodist's new Center for Innovation. How did it come about?

Roberta Schwartz: Methodist has always been an innovative institution. As we really saw the onset of a lot of disruption particularly in digital technology, we had already upgraded our electronic medical records. What we saw was with the onslaught of technology in other fields, they were figuring out how to layer pieces on top of our electronic medical record system to make that information usable — more patient friendly and smarter. As we watched these technologies come in, we found that there were a number of us within the organization that were just talking about it all the time and watching how we could really revolutionize the way we worked by embracing these new technologies. So, it probably started about 18 months ago where we found a group of us talking all the time, emailing articles, and figuring out how to hitch up our budgets for new technologies. Our CEO, Marc Boom was so supportive of us. We started meeting every other week for an hour. We called our group the DIOP — the digital innovation obsessed people. That's how it began.

IM: How did DIOP become the Center for Innovation?

RS: We spoke with our CFO and CEO. They said go ahead and provided us with some budget dollars for some pilots. We have now embraced a series of pilots in different areas of need. DIOP became formalized early this year and the Center for Innovation was born. We're now looking at a vision statement of how we can transform almost every aspect of our patient, physician, and administrative experience to make everyone's lives easier and better.

IM: What new innovative efforts are you most excited about introducing to the hospital?

RS: On the patient engagement front, we partner with a platform that breaks up bite-sized content that allows you in text form through — videos or two-way communication — so that we can engage with you before you even make a phone call to our office. For instance, after a visit we can ask you, "how bad is your pain on a scale of 1 to 10," and if you respond "10" we're going to call you before you call the office and have to press one, two, or three on our call board.

A second area we're excited about is a way to text back and forth with your doctor's office. We're changing to a much more modern communication style.

We're also changing how we recruit. We have a chatbot that's available 24/7. We find that we are communicating with night nurses at 1 am asking about benefits. A lot of the people we are trying to recruit are working at night when we don't have HR staff in the office all night long.

We are also looking robotic process automation and trying to take some of the menial work away from our staff so we can get them closer to the bedside or on more tasks.

Methodist went mobile. Our app is online — you can do virtual care, urgent care, or second opinion. Soon, we'll have virtual behavioral health and nutrition. You can also request an appointment.

IM: How is the technology changing the footprint of the hospital?

RS: We want to make Houston Methodist services available all over the country and the world, where it's appropriate. We're going to serve primarily Houston, but if we want to help those institutions in a more rural area, send them to us when appropriate, but for those who can stay at home and in bed, we want to keep them where they are and still provide them with the same level of care.

IM: With the 100-year anniversary of Houston Methodist, what do you hope to put in place for the next 100 years?

RS: We're an organization built on the pillars of success, and we constantly evolve. I can't even tell you where we'll be in a hundred years. I can tell you is that in a few years every type of ease of interaction that you have with Alexa and Amazon, that you have that type of interaction with your hospital.

I'm thrilled to be on this journey, and we're loving it.

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Portions of this interview have been edited.

Houston-based iCRYO has a few Texas franchise locations expected to open in 2019,and more coming nationwide. Courtesy of iCRYO.

Houston-based cryotherapy chain grows its national presence

Cold news

A Houston entrepreneur has taken his cryotherapy and wellness brand and franchised it from its origin in League City to upstate New York. But, that's only the beginning.

The brand, iCRYO, currently has four locations in the Houston area and one in New York, and has four more coming to the Dallas-Fort Worth area, Austin, and another upstate New York location. But that's only the start, says co-founder and COO, Kyle Jones.

Jones says he was among the first in the country to see the potential for cryotherapy as a retail business. He was managing a physical therapy clinic, and they added a cryotherapy machine as a treatment for patients. Jones says he was blown away by how fast the patients were recovering — some even accelerating their healing process by 50 percent.

"I told my boss that we needed to scale this thing. This is a real business, not just an add-on for a PT clinic," Jones says.

As patients overwhelmed the small operation and as retail cryotherapy centers began popping up, Jones decided to branch out on his own. He was 24 at the time.

In 2015, he opened his first location of iCRYO in League City. Jones says he used the location to work out the kinks of his business model, since he didn't really have much to model after. One thing that was most important to Jones, with his PT background, was safety of the patients. He cared about this more than making money, he says.

"I knew first and foremost the one thing that the cryotherapy space didn't have was a certification program, which is kind of terrifying to me," Jones says. "Any therapy has some type of schooling or certification — massage therapy and acupuncture both have it. Cryotherapy even to date does not a certification to it."

He teamed up with equipment manufactures and professionals at the gas companies that handle the liquid nitrogen cryotherapy uses and they created a cloud-based certification platform for cryotherapy. He still uses that program with all iCRYO employees — everyone from the owner to the technician has to pass with a 90 percent and above.

After two years of business and settling on the company's marketing, Jones started to franchise. He sold eight locations in Houston, three have opened already. The first Austin iCRYO location plans to open in May, and three Dallas-area locations are also expected to deliver in 2019.

Jones says he is still actively looking for new franchisees, and is in talks to sell franchise rights to the entire states of Florida and Georgia, more locations in New York, San Antonio, and other cities scattered around. It's an intriguing market to franchisees, Jones says, because there's just not that much competition yet and the technology has so much potential.

"The more that people find out about it and research it, the crazier it's going to get," Jones says. "There's just no peak of people wanting to feel better."

Saudi Arabian representatives met at Houston-based Celltex Therapeutics Corp.'s office earlier this month to finalize a memorandum of understanding. Courtesy of Celltex

Houston biotech company plans expansion into Saudi Arabian market

On the move

A Houston company that uses stem cell technology to treat patients suffering from degenerative diseases is taking its patented technology to another continent.

Celltex Therapeutics Corp. has entered a memorandum of understanding with Saudi Arabia's Research Products Development Company. As a part of the partnership solidified by the MOU, Celltex will open an office in Riyadh, Saudi Arabia, later this year. The new office will aid the commercialization of Celltex's technology and expand the company's presence to Saudi Arabia.

"We are honored to forge a relationship with Saudi Arabia," says David G. Eller, CEO and chairman of Celltex, in a release. "Our collaboration with this first-rate global cohort furthers our commitment to initiating breakthroughs in regenerative medicine, and our presence in Riyadh will further expand our opportunities to improve the quality of life of those in need."

The MOU is a part of the country's effort to diversify the economy that's been dominated by oil and gas, the release says. As a part of Saudi Arabia's National Industrial Development and Logistic Program, Celltex and other United States companies were invited to Riyadh to sign MOUs in January, which resulted in billions of dollars in Saudi investment, per the release.

On February 4, the two parties reconvened at Celltex's office in Houston. The group included top Saudi dignitaries, Abdulmohsen Almajnouni, CEO of RPDC, as well as others.

"We are excited to explore business opportunities with Celltex, a biotechnology company with the innovative proprietary technology, patents and know-how for the cultivation and therapeutic application of stem cells," Almajnouni says in the release.

Celltex currently extracts patients' stem cells at various partner facilities across the United States, but implementation happens at a hospital in Mexico, due to FDA regulations and red tap. However, Eller doesn't foresee this being the process forever.

"We have very good relations with the US FDA," he says in an InnovationMap article. "They are very interested in what we know. Our approach is really is very progressive and we've grown every year."

The company's treatment has been proved effective with its patients. Eighty-three percent of multiple sclerosis patients have reported improvement of symptoms specific to their disease, as have 73 percent of Parkinson's sufferers. But the staggering fact is that 100 percent of 58 respondents with rheumatoid arthritis say they have benefited.

From a locally sourced meal service company to stem cell research and a balance measuring device, this week's innovators are ones to know in the health industry. Courtesy photos

3 Houston health-focused innovators to know this week

Who's who

More and more Americans are focusing on their health, from eating right to experimenting with new treatments or devices. These three Houston innovators are riding the coattails of this health-focused movement with their startups. With advances in technology and the movement only growing faster and faster, you'd better keep your eye on these Houston innovators.

Marla Murphy, founder of The Blonde Pantry

Courtesy of The Blonde Pantry

Marla Murphy didn't feel like she was doing enough to promote health and wellness with her platform, The Blonde Pantry. So, she expanded it to incorporate locally sourced produce and easy-to-make recipes she gets ready every weekend to deliver to her members by Monday.

"It's not about selling meals and moving on, I want this to be a lifestyle company that is really founded and has deep roots in Houston," says Murphy in a InnovationMap story.

Murphy tells InnovationMap that in the next year she hopes to expand into the retail space and find a bigger commercial kitchen to function as their own. She also hopes to partner with companies outside of food and continue to nourish lives in someway.

David Eller, chairman, co-founder and CEO of Celltex

Courtesy of Celltex

Stem cell treatment is personal to David Eller, chairman, co-founder and CEO of Celltex. Eller had the treatment in hopes of resolving pain from a college football injury.

"I would go to work and put four to six Advil in my pocket," Eller says in an InnovationMap story about Celltex's technology. Within months, he stopped needing those pills.

Houston-based Celltex tracks its progress with its patients. Eighty-three percent of multiple sclerosis patients have reported improvement of symptoms specific to their disease, as have 73 percent of Parkinson's sufferers. But the staggering fact is that 100 percent of 58 respondents with rheumatoid arthritis say they have benefited.

Katharine Forth, founder and CEO of Zibrio

Courtesy of Zibrio

Katharine Forth has used a technology she developed with her colleague at NASA to measure balance in astronauts to create a device that any terrestrial human can now use from the comfort of their own homes.

"The machines typically used for balance measurement can be as large as a telephone booth, so we invented a new way to measure postural control using a much smaller mechanism that fit inside a moon boot," Forth says in an InnovationMap article about Zibrio, The Balance Company. Zibrio, The Balance Company.

Zibrio is now a finalist for the 2019 SXSW Pitch in the health and wearables category and will take its balance technology to the stage in March.

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Venus Aerospace adds government, C-suite leaders following $91M raise​

new leaders

Fresh off its $91 million Series B, Houston-based Venus Aerospace has made several key additions and promotions to its leadership team.

The company says its expanded team will help it deploy its high-thrust rotating detonation rocket engine (RDRE), which completed its first U.S. flight test last summer.

"We flew the world's first high-thrust RDRE in just over four years on $80 million. We believe that makes it the fastest, most capital-efficient rocket engine program in history," Sassie Duggleby, co-founder and CEO of Venus Aerospace, said in a news release. "Adding this talent to our leadership team is how we bring that same discipline to the company itself, as we scale to meet the technical needs of defense and space customers who need range and speed legacy systems can't deliver."

The key hires include:

Lane Bodian, Vice President of Public Policy

Bodian previously served as the Principal Deputy Assistant Secretary of Defense for Legislative Affairs at the Pentagon.

Dan Rebnord, Director of Federal Government Relations

Rebnord most recently served as Senior Policy Advisor to a member of the Senate Armed Services Committee and previously worked in the Office of Legislative Affairs at the Department of Defense and as Staff Director for a national security subcommittee in the House of Representatives. Rebnord and Bodian will lead Venus' work with government stakeholders.

Tom Barron, Chief Operating Officer

Barron was promoted from his role as vice president of operations for Venus Aerospace. Before his time at Venus, he served as Special Assistant to the Secretary of Defense and consulted aerospace clients at McKinsey & Company. He also served as a U.S. Army Infantry and Special Forces officer.

Nick Cardwell, Chief Product Officer

Cardwell was promoted from his role as vice president of research and development. He previously held product and technology leadership roles at VC-backed tech companies in the San Francisco Bay Area and Austin.

Venus also named Cameron Taylor as its new vice president of operations, Sarah Boland Heine as its head of communications, Matt Stohr as its head of business development, and Sheila Menz as general counsel.

The company also announced a joint technology development agreement to advance the RDRE with defense giant Lockheed Martin last week. Through the partnership, Venus and Lockheed will focus on evaluating the RDRE's propulsion architecture in defense systems, specifically for precision fires applications where weapons are designed to accurately strike targets at long distances.

Lockheed Martin Ventures, the investment arm of the aerospace and defense contractor, is an investor in Venus Aerospace.

"Lockheed Martin is focused on rapidly delivering advanced capabilities that strengthen deterrence and provide decisive advantages for the warfighter," Tim Cahill, president, Lockheed Martin Missiles and Fire Control, said in a news release. "Our collaboration with Venus Aerospace allows us to evaluate a promising propulsion technology and determine how it can be integrated into future precision fires solutions. Efforts like this help accelerate innovation, reduce risk and shorten the path from emerging technology to operational capability."

Venus' RDRE is expected to enable vehicles to travel four to six times the speed of sound from a conventional runway and is about 15 percent more efficient than traditional alternatives, according to the company.

Venus says the reusable, affordable and scalable RDRE is designed with a "common propulsion architecture" that can work for multiple industries and mission types. The company has previously estimated that the hypersonic market is projected to surpass $12 billion by 2030.

New report ranks Houston as America's No. 2 least safe city

Ranking It

A new study contains bad news for Houston. A report from personal finance website SmartAsset ranks the Bayou City as the second-least safe city in the U.S. among cities with at least 250,000 residents.

Only Memphis ranked worse than Houston.

The 2026 study looked at 83 U.S. cities' violent crimes, property crimes, traffic deaths, and disaster risk.

Houston fared poorly in all four: 11.5 violent crimes per 1,000 residents, 42.9 property crimes per 1,000 residents, 11.6 traffic deaths per 100,000 residents, and “very high” risk for natural disasters, which makes sense in a city prone to tropical weather and flooding.

For all cities in the study, disaster risk and traffic deaths were measured at the county level.

Houston is the only Texas city to rank in the bottom 10. The other cities are:

  • 1. Memphis, Tennessee
  • 2. Houston, Texas
  • 3. St. Louis, Missouri
  • 4. San Francisco, California
  • 5. Kansas City, Missouri
  • 6. Albuquerque, New Mexico
  • 7. Oakland, California
  • 8. Nashville, Tennessee
  • 9. Philadelphia, Pennsylvania
  • 10. Detroit, Michigan

“While no major population center is entirely free from danger, some are more successful than others at creating environments where people can live, work and travel with confidence,” SmartAsset says.

Although this study paints Houston in a poor light, other reports take a more positive view. The "America's Best Cities" report from Canada-based real estate and tourism marketing firm Resonance Consultancy ranked as No. 9 in America out of 393 cities with a population of 500,000 or more. Houston also boasts Texas’ 10th best park system, according to its ParkScore Index.

While SmartAsset has bad news for Houston, the Dallas suburb of Plano ranked as the study’s second-safest big city. Compared to Houston, Plano fared well in three of the four categories: 1.5 violent crimes per 1,000 residents, 14.7 property crimes per 1,000 residents, and 6.9 traffic deaths per 100,000 residents. Its only shortcoming is a “relatively high” risk for natural disasters.

Elsewhere in Texas:

  • Fort Worth ranked No. 22
  • Austin ranked No. 26
  • San Antonio ranked No. 54
  • Dallas ranked No. 73
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This article originally appeared on CultureMap.com. Eric Sandler contributed to this article.

15+ startups fueling Houston's $1 billion funding haul for Q1-Q2 2026

cha-ching

Houston startups started 2026 strong, bringing in nearly $1 billion in venture capital in the first half of the year, Pitchbook data shows.

Here are 17 Houston companies that secured funding since January, according to reporting by InnovationMap and our sister site, EnergyCapitalHTX.com.

Did we miss a funding round? Let us know by emailing innoeditor@innovationmap.com.

Sage Geosystems

Sage Geosystems raised a $97 million Series B. Photo via sagegeosystems.com.

Houston-based geothermal energy startup Sage Geosystems closed its Series B fundraising round in January and plans to use the money to launch its first commercial next-generation geothermal power generation facility.

Ormat Technologies and Carbon Direct Capital co-led the $97 million round, according to a press release from Sage. Existing investors Exa, Nabors, alfa8, Arch Meredith, Abilene Partners, Cubit Capital and Ignis H2 Energy also participated, as well as new investors SiteGround Capital and The UC Berkeley Foundation’s Climate Solutions Fund.

The new geothermal power generation facility will be located at one of Ormat Technologies' existing power plants. The Nevada-based company has geothermal power projects in the U.S. and numerous other countries around the world. The facility will use Sage’s proprietary pressure geothermal technology, which extracts geothermal heat energy from hot dry rock, an abundant geothermal resource. Continue reading.

TrueLeap Inc.

Sandip Bordoloi and Sunny Zhang, founders of True Leap Inc. Photo via trueleapinc.com.

Houston-based edtech company TrueLeap Inc. closed an oversubscribed seed round in January.

The $3.3 million round was led by Joe Swinbank Family Limited Partnership, a venture capital firm based in Houston. Gamper Ventures, another Houston firm, also participated with additional strategic partners.

TrueLeap reports that the funding will support the large-scale rollout of its "edge AI, integrated learning systems and last-mile broadband across underserved communities." Continue reading.

Wellysis

Wellysis is known for its continuous ECG/EKG monitor with AI reporting, known as the S-Patch. Photo via wellysis.com.

Wellysis, a Seoul, South Korea-headquartered wearable biosensing company with its U.S. subsidiary based in Houston, closed a $13.5 million pre-IPO funding round in February and plans to expand its Texas operations.

The round was led by Korea Investment Partners, Kyobo Life Insurance, Kyobo Securities, Kolon Investment and a co-general partner fund backed by SBI Investment and Samsung Securities, according to a news release.

Wellysis reports that the latest round brings its total capital raised to about $30 million. The company is working toward a Korea Securities Dealers Automated Quotations listing in Q4 2026 or Q1 2027.

Wellysis is known for its continuous ECG/EKG monitor with AI reporting. Its lightweight and waterproof S-Patch cardiac monitor is designed for extended testing periods of up to 14 days on a single battery charge. Continue reading.

DexMat

DexMat plans to use its seed funding to commercially scale Galvorn, its carbon-based conductive fiber. Photo courtesy DexMat

Houston-based material science and climatech startup DexMat closed a $5 million seed round in February.

The round was led by non sibi ventures, with participation from Governance Partners, Tailwind Futures, BetterWay, Capital Factory and other investors. The company additionally announced that it has secured $3 million of non-dilutive funding.

DexMat plans to use the recent round to commercially scale Galvorn, its carbon-based conductive fiber. The high-performance copper alternative, originally developed at Rice University, is made from carbon nanotube (CNT) fibers, which are less energy- and CO2-intensive to produce. Continue reading.

Coya Therapeutics

Houston biotech co. raises $11M to advance ALS drug development

Coya Therapeutics plans to scale up manufacturing and prepare for the commercialization of COYA 302, its ALS therapy drug. Photo via Getty Images

Houston-based clinical-stage biotechnology company Coya Therapeutics (NASDAQ: COYA) closed a $11.1 million in a private investment round in February.

India-based pharmaceuticals company Dr. Reddy’s Laboratories Inc. led the round with a $10 million investment, according to a news release. New York-based investment firm Greenlight Capital, Coya’s largest institutional shareholder, contributed $1.1 million.

Coya reports that it plans to use the proceeds to scale up manufacturing of low-dose interleukin-2 (IL-2), which is a component of its COYA 302 and will support the commercial readiness of the drug. COYA 302 enhances anti-inflammatory T cell function and suppresses harmful immune activity for treatment of Amyotrophic Lateral Sclerosis (ALS), Frontotemporal Dementia (FTD), Parkinson’s disease and Alzheimer’s disease. Continue reading.

Utility Global

Utility Global’s H2Gen technology aims to decarbonize the heavy industrial sector. Photo courtesy of Utility Global

Houston-based Utility Global raised $100 million in an ongoing Series D round to globally deploy its decarbonization technology at an industrial scale, the company reported in February.

The round was led by Ara Partners and APG Asset, according to a news release. Utility plans to use the funding to expand manufacturing, grow its teams and support its commercial developments and partnerships.

Utility Global's H2Gen technology produces low-cost, clean hydrogen from water and industrial off-gases without requiring electricity. It's designed to integrate into existing industrial infrastructure in hard-to-abate assets in the steel, refining, petrochemical, chemical, low-carbon fuels, and upstream oil and gas sectors. Continue reading.

Cart.com

Cart.com raised $180 million to scale its logistics network, expand AI capabilities and develop workflow automation tools. Photo courtesy of Cart.com

Houston-based commerce and logistics platform Cart.com raised $180 million in growth capital from private equity firm Springcoast Partners, pushing the startup past the $1 billion funding mark since its founding in 2020, the company reported in March.

Cart.com says it will use the capital to scale its logistics network, expand AI capabilities and develop workflow automation tools. Continue reading.

Artemis

Houston-based Artemis, formerly Monalee, closed its latest funding round in March. Rendering courtesy Artemis.

Houston tech startup Artemis raised $6 million from 10 investors, it reported in March. The company offers an AI-supported platform that enables solar, battery storage and home improvement contractors to design, sell and finance energy projects.

Long Journey and Copec WIND Ventures co-led the round, with participation from angel investor Scott Banister, Coalition Operators, FJ Labs, Ludlow Ventures, Palm Tree Crew, Plug and Play Ventures, Shrug Capital and Tribeca Ventures.

To help propel growth, the company secured $10 million in financing last year (under its previous name, Monalee) from venture debt and growth credit provider Applied Real Intelligence. As Monalee, the company raised $16 million in venture capital. Continue reading.

Helix Earth

Helix Earth's technology is estimated to save up to half of the net energy used in commercial air conditioning, reducing both emissions and costs for operators. Photo via Getty Images

Houston-based Helix Earth Technologies closed a $12 million Seed 2 funding round to scale manufacturing of its energy-efficient commercial HVAC add-on technology in April.

Veriten, a Houston-based energy investment firm, led the round. Rua Ventures, Carnrite Ventures, Skywriter LLC and Textbook Ventures also participated.

Helix Earth—which was founded based on NASA technology, spun out of Rice University and has been incubated at Greentown Labs—is developing high-efficiency retrofit dehumidification systems that aim to reduce the energy consumption of commercial HVAC units. The company reports that its technology can lead to "healthier indoor air, lower energy bills, reduced building maintenance, and more comfortable spaces for building owners and occupants." Continue reading.

NanoTech Materials

The company has developed thermal insulation technology that improves efficiency and safety in buildings and outdoor infrastructure. Photo via LinkedIn

Houston-based NanoTech Materials closed a $29.4 million Series A in April.

The round was led by Austin-based HPI Real Estate & Investments. Houston-based Goose Capital and Austin-based Milliken & Company also participated.

Nanotech has developed its patented Insulative Ceramic Particle (ICP) technology, which reduces heat transfer in buildings and outdoor infrastructure, improving efficiency and safety. It's known for its Cool Roof Coat, Wildfire Shield and Insulative Coat: Cool Touch product lines. Continue reading.

Paige

Paige founder and CEO Emily Cisek. Photo courtesy Paige

Houston-based Paige, a comprehensive life planning and succession software company, secured a $2.5 million investment to expand the AI-driven tools on its platform this spring.

The funding comes from Alabama-based 22nd State Banking Company, according to a news release. Paige says it will use the funding to expand automation, AI-driven onboarding and self-service tools, as well as add to its sales and customer success teams.

The company was originally founded by CEO Emily Cisek in 2020 as The Postage and rebranded to Paige last year. It helps users navigate and organize end-of-life planning with features like document storage and organization, password management, and funeral and last wishes planning. Continue reading.

Ace Green Recycling

The company plans to use the funds to support its flagship Texas facility and planned merger. Photo via LinkedIn

Houston-based Ace Green Recycling raised $32 million in private investment in public equity (PIPE) financing to support its future plans for growth, the company reported in May.

The battery recycling technology company secured the financing with Athena Technology Acquisition Corp. II, a publicly traded special purpose acquisition company that Ace previously announced it plans to merge with. Once the merger is completed, Ace will become a publicly traded company on the Nasdaq Stock Exchange under the ticker symbol "AGXI."

Ace says the financing will be used to complete the merger and scale the company. Continue reading.

Casimir

Casimir’s semiconductor chips can generate power from quantum vacuum fields without the need for batteries or charging. Photo via casimir.inc

Houston-based Casimir emerged from stealth in May with a $12 million seed round to commercialize its quantum energy chip.

The round was led by Austin-based Scout Ventures. Lavrock Ventures, Cottonwood Technology, Capital Factory, American Deep Tech, and Tim Draper of Draper Associates also participated in the round. The oversubscribed round exceeded the company’s original $8 million target, according to a news release.

Casimir’s semiconductor chips can generate power from quantum vacuum fields without the need for batteries or charging. The company plans to commercialize its first-generation MicroSparc chip by 2028. Continue reading.

VoltaGrid

VoltaGrid has developed a modular power generation system that improves reliability and limits emissions. Photo via voltagrid.com

Houston-based power generation startup VoltaGrid nailed down a $1 billion equity investment from asset management heavyweight Blackstone and Houston-based oilfield services provider Halliburton in May.

The investment came in two forms:

  • A $775 million primary capital raise
  • A $225 million secondary capital purchase from existing investors

VoltaGrid, founded in 2020, provides behind-the-meter mobile power generation equipment for data centers, microgrids and industrial customers. Continue reading.

Aquanta Vision

Babur Ozden is the founder and CEO of Aquanta Vision. Photo via LinkedIn

Houston climatech startup Aquanta Vision secured pre-seed funding to accelerate the commercialization of its methane leak detection software, the company announced in May.

EIC Rose Rock participated in the round, joining investors like Marathon Petroleum Corporation, Chevron Technology Ventures, Ecosphere Ventures, and Odyssey Energy Advisors. The investment follows successful field trials for Aquanta Vision’s optical gas imaging (OGI) detection software, according to the company. Continue reading.

Axiom Space

Axiom Space closed an oversubscribed $525 million round in June. Image via NASA

Axiom Space tacked on an additional $175 million to a previously announced capital raise in June, bringing the oversubscribed round to a total of more than $525 million.

Axiom shared in February that it had secured $350 million in a financing round led by Type One Ventures and Qatar Investment Authority. In June, the company reported that Japan-based MUFG Bank Ltd. joined the round as a new investor, in addition to continued participation from existing backers.

The funding will go toward developing the company's commercial space station, known as Axiom Station, and the production of its Axiom Extravehicular Mobility Unit (AxEMU) under its NASA spacesuit contract. Continue reading.

Receipts Depositary Corporation

The company's platform makes it easier to buy and trade hard-to-access and less traditional assets. File photo

Houston-based fintech company Receipts Depositary Corporation closed a $7 million oversubscribed funding round in June and plans to scale.

The round was led by Austin-based LiveOak Ventures, with participation from Hivemind Capital, Onigiri Capital, OTC Markets Group, GTS, and Redbeard Ventures, according to a release from RDC.

RDC's platform issues depositary receipts (DRs) to qualified investors on digital and alternative assets, making it easier for investors to buy and trade hard-to-access and less traditional assets. Continue reading.