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

cha-ching

From climatech companies to space startups, here's who secured funding in Q1 and Q2. Photo via Unsplash

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.

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Houston-area NASA contractor plans Nasdaq IPO

going public

Webster-based NASA contractor Rothe Development Inc. has filed paperwork with the U.S. Securities and Exchange Commission to go public.

Rothe, a minority- and woman-owned business, hasn’t yet identified how many shares it will sell and how much money its IPO might raise. Rothe plans to offer Class B common stock on the Nasdaq exchange.

CEO Karen Wheeler-Hall owns all of the Class A shares and would retain majority control after the IPO, according to the SEC filing. The company plans to use $2.4 million of the IPO proceeds so Wheeler-Hall can pay off a loan from the seller for her 2021 acquisition of Rothe.

From last December to this May, the company raised about $2.1 million in a pre-IPO private placement at $1 per share, the SEC filing shows.

Rothe runs NASA training lab in Houston

Founded in 1967, Rothe supplies engineering, technology, operations and technical services to NASA, the U.S. Department of Defense, other federal agencies, commercial space operators, and regulated industries.

Rothe is likely best known for operating NASA’s Neutral Buoyancy Laboratory in Houston. The lab trains astronauts for spacewalks and simulates space missions. It supports NASA’s International Space Station and Artemis programs.

Company sees room for growth

In the SEC filing, Rothe said it operates in several expanding markets driven by rising investments, including space exploration, national security, cybersecurity and digital infrastructure.

“We believe these market trends create significant opportunities for continued growth across both government and commercial sectors,” the company said.

Rothe generated nearly $126.4 million in revenue last year, up from $117.3 million the previous year. However, the company swung to a $700,000 operating loss in 2025 versus $1.8 million in operating income in 2024.

At the end of 2025, Rothe’s workforce comprised 385 employees and 25 subcontractors. The company also works in the cybersecurity, computer engineering, software development, multimedia and communication, and commercial calibration sectors, according to its website.

Houston university ranks No. 10 best in the U.S. in new 2027 report

Rice Ranking

Education ranking and review website Niche has released its 2027 rankings of the best colleges in the U.S., and Rice University leads as the No. 1 best university in Texas, and No. 10 best nationwide.

Niche's annual rankings compared over 4,000 colleges and universities based on their academics, value, student life, career preparation, and more. Schools receive letter grades across 14 metrics, which were expanded this year to include Student Wellness and Future Readiness.

Also new to this year's rankings, Niche implemented an "Institutional Success Score" that "places every college into one of 10 mission-based categories" and compared each school against "outcomes aligned with that mission," which included research institutions, social mobility-focused colleges, and religious institutions, among others.

Rice University ranked 10th in three national lists: Best Colleges in America, Top Private Universities, and Colleges with the Best Professors.

Rice also received the following top-100 rankings:

  • No. 11 – Most Diverse Colleges
  • No. 14 – Best College Campuses
  • No. 15 – Colleges With the Best Academics
  • No. 20 – Colleges With the Best Student Life
  • No. 23 – Hardest Colleges To Get Into
  • No. 27 – Best Colleges for Student Athletes
  • No. 69 – Best College Dorms
  • No. 70 – Best Value Colleges
  • No. 74 – Best College Locations
  • No. 89 – Best College Food
On the local front, University of Houston and two of its branch campuses also ranked among the top 20 best universities in Texas. UH ranked a respectable No. 7 in the statewide list, and it ranked as the 123rd best university in the U.S. It fared better in the nationwide list of the Best Big Colleges, appearing at No. 53, and ranked 54th in Niche's Top Public Universities list.


The University of Houston-Clear Lake branch ranked as the 11th best Texas university and came in at No. 192 overall. It's the 33rd Best Hispanic Serving Institution (HSI), the 69th Best Value College, and it ranked 89th in the Top Public Universities list.

University of Houston Downtown is the 13th Best Online College in America, the 15th best university in Texas, and it's the 49th Best HSI in America. In the overall list of the best universities, UHD ranked 231st.Top education institutions across Texas

Three other Texas universities outside Houston excelled on Niche's list of the 100 Best Colleges in America.

The University of Texas at Austin ranked second statewide and 30th nationwide, and topped the list of Colleges With the Best Student Life. UT Austin also racked up top-10 acclaim in the separate lists of the Best College Locations (No. 4), Top Public Universities (No. 5), Best Big Colleges (No. 6), Best College Campuses (No. 10), and Best Colleges For Student Athletes (No. 10).

Texas A&M University in College Station and Trinity University in San Antonio round out the remaining Texas institutions that ranked among the top 100 overall. The Aggies ranked 52nd nationwide, and the Trinity Tigers ranked 65th overall.

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This article originally appeared on CultureMap.com.

10 can't-miss events at Houston Energy and Climate Week 2026

HECW lineup

Editor's note: Houston Energy and Climate Week returns for its third year, Sept. 12–18, with panels, happy hours, pitch days and tours focused on the energy transition.

The Ion District will host many of the week's events. Here are details on some can't-miss, signature events and how to register. Find the full schedule here. Please note: this article may be updated to add more events.

Sept. 13 — The & Awards

Kick off the week by celebrating Houston honorees leading the future of energy at the & Awards. The & Awards will honor Zay Zeidman, chairman of Houston First and managing partner of Altitude Ventures; The University of Houston's Renu Khator and Ramanan Krishnamoorti; Maryanne Maldonado, CEO of the World Affairs Council; and Fervo Energy co-founders Tim Latimer (CEO) and Jack Norbeck (CTO). The inaugural posthumous Lifetime Ambassador Award will honor former Houston Mayor Sylvester Turner, and this year’s Allies in Energy grant recipients will also be recognized. The evening will include a fireside chat, an immersive gallery, live music, passed hors d'oeuvres, Champagne and plenty of networking opportunities.

This event is Sunday, Sept. 13, from 6-9 p.m. at ARTECHOUSE Houston. Register here.

Sept. 14 — Brews on the Bayou

Head to Saint Arnold Brewery for a more laid-back kickoff event. Grab a beer and take in a live conversation with Paul Hobby, managing director of Genesis Park, and Katie Mehnert, CEO of The Bee Suite and co-founder of HECW. Rice University's Aaron Pomerantz will moderate the discussion. Then hear a live performance from AY Young.

This event is Monday, Sept. 14, from 6-9 p.m. at Saint Arnold Brewery. Register here.

Sept. 14–18 — Sip For Sustainability

Enjoy a signature cocktail at five H Town Restaurant Group spots each night of Houston Energy and Climate Week. A portion of every purchase will go toward Allies in Energy, which supports education, collaboration, and community programs that drive a more sustainable future. Participating eateries include Hugo's, Xochi, Uber, Zaranda and Caracol.

These events begin Monday, Sept. 14, from 3-5 p.m. Find more information on each day's happy hour here.

Sept. 15 — HTX Tech Tours

HECW will present two Tech Tours this year, offering attendees a closer look at the region's climatech scene. The Metro Innovation Tour & Market will visit Sugar Land Town Square, Shell Technology Center Houston, SLB West Houston Campus, University of Houston at Sugar Land, Ambrosia Space, NanoTech Materials and Syzygy Plasmonics. The Bay City South Innovation Tour will visit Sugar Land Town Square and Erthos Project Bravo in Matagorda County. Both tours will head to Astros Night at Daikin Park to wrap up the day.

These events are Tuesday, Sept. 15. Find more information here.

Sept. 15 — Meet the Activate Houston Cohort 2026 Fellows

Meet Activate's latest cohort, which was named this summer, and learn more about their hardtech and climate-focused solutions. Also meet founders from the organization’s 2025 cohort during Houston Energy and Climate Startup Week.

This event is Tuesday, Sept. 15, from 5-7 p.m. at the Ion. Register here.

Sept. 15 – Cypher Pilotathon and Startup Showcase

Grab coffee and take in keynotes and panels featuring leaders from Amperon, Aramco Ventures, New Climate Ventures, Syzygy Plasmonics and many others during this signature event, this year under the theme “The NEW Energy Industrial Revolution.” After lunch, hear pitches from 31 ventures during the Pilotathon. This year's event will also feature a startup showcase with interactive booths where attendees can meet founders and see demonstrations, plus an industry hub where corporates and investors can engage with emerging technologies and identify the pilots they want to move forward with.

This event is Tuesday, Sept. 15, from 9 a.m.-5 p.m. at POST Houston. Get tickets here.

Sept. 15 — Houston Astros Energy Night

Catch a game and chat with fellow clean energy enthusiasts during Houston Astros Energy Night. The 'Stros take on the Kansas City Royals. A bonus? Dollar Hot Dog Night at Daikin Park.

This event is Tuesday, Sept. 15, starting at 7:10 p.m. at Daikin Park. Get tickets here.

Sept. 16 — Greentown Labs Climatech Summit

Entrepreneurs, investors, corporate leaders, policymakers and philanthropists will head to Houston this month for the annual Greentown Climatetech Summit. Hear from Greentown CEO Georgina Campbell Flatter and keynote speaker Tim Latimer, CEO and co-founder of Houston geothermal unicorn Fervo Energy, plus numerous other engaging panels at the Ion. Then head to Greentown Labs for an open house and startup showcase, where attendees can meet some of the climatech incubators' members, before taking in the startup pitch competition followed by happy hour over at the Continental Club.

This event is Wednesday, Sept. 16, from 8 a.m.–9 p.m. at multiple locations. Register here.

Sept. 17 — Rice Alliance Energy Tech Venture Forum

Hear from clean energy startups from around the world at the 23rd annual Energy Tech Venture Forum. In addition to the pitches, this event will also host keynotes from Sean Maher, chief economist at Phillips 66, and Ira Ehrenpreis, founder and managing partner of DBL Partner. Panels will focus on technologies, infrastructure and commercialization strategies needed to deploy breakthrough innovations at scale. Following the event, the Rice Alliance will also name its annual “Most Promising” startup.

This event is Thursday, Sept. 17, from 7:30 a.m.-5 p.m. at Rice University’s Jones Graduate School of Business. Register here.

Sept. 18 — Halliburton Labs Finalists Pitch Day

Hear from Halliburton Labs' latest cohort of entrepreneurs. The incubator aims to advance the companies’ commercialization with support from Halliburton's network, facilities and financing opportunities. Its latest cohort includes one company from Texas.

This event is Friday, Sept. 18, from 8 a.m.-noon at The Ion. Register here.

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This article originally appeared on our sister site, EnergyCapitalHTX.com.

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