Venus Aerospace closes $91 million Series B to scale hypersonic engine

flight funding

Venus Aerospace has secured funding from Mercury Fund, Lockheed Martin Ventures and others. Photo courtesy Venus Aerospace

Houston-based Venus Aerospace has closed a $91 million Series B round and plans to scale the production of its hypersonic engine.

The round was led by Houston-based Mercury Fund with participation from Lockheed Martin Ventures, MESH, PEAK6, Draper Associates, Starboard Star Venture Capital, Green Sands Equity and other investors, according to a news release.

The investment comes about a year after Venus completed the first U.S. flight test of its high-thrust rotating detonation rocket engine (RDRE). The engine 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 Aerospace says the latest round of funding will allow it to move the RDRE from demonstration to deployment and meet customer requirements for the near-term defense and space industries. The company says that the reusable RDRE is designed with a "common propulsion architecture" that can work for multiple industries and mission types.

“This financing marks an important step in moving Venus from breakthrough demonstration to scaled capability,” Sassie Duggleby, co-founder and CEO, said in the news release. “Our customers need propulsion systems that go farther, can be produced reliably and are built on supply chains they can trust. We are advancing that capability with American engineering and manufacturing talent to strengthen U.S. defense, expand space access and support the future of high-speed flight.”

Venus Aerospace raised a $20 million Series A in 2022, led by Wyoming-based Prime Movers Lab. At the time, the company said it would put the funding toward three main technologies: a next-generation rocket engine, aircraft shape and leading-edge cooling system.

The company also picked up an investment from Lockheed Martin Ventures, the investment arm of aerospace and defense contractor Lockheed Martin, in November 2025—in addition to funding from other investors over the years.

“Since our initial investment, Venus has progressed very quickly in its technology development," Chris Moran, vice president and general manager of Lockheed Martin Ventures, added in the release. "Our reinvestment in Venus recognizes Venus’ accomplishments to date and focus on speed to manufacture, cost management and reduction of supply chain constraints. Venus is working effectively to position its propulsion system for the production scale required by defense programs.”

"Venus is exactly the kind of company Houston capital should be backing," Blair Garrou, co-founder and managing partner at Mercury Fund, added in the release. "It combines multiple frontier technologies, domestic manufacturing and clear commercial and national security relevance. We believe this team is positioned to lead an important new chapter in defense and space, and we are proud to support a company building breakthrough technology here in Texas."

Venus Aerospace and Houston clean tech startup Vaulted Deep were named to the World Economic Forum's Technology Pioneers community earlier this summer. Read more here.

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Houston saw a jump in VC funding in Q1 2026, fueled by several major investments in clean energy startups. Image via Getty Images

Houston VC funding surged nearly 50% in Q1 2026, report says

VC victories

First-quarter venture capital funding for Houston-area startups climbed nearly 50 percent compared to the same time last year, according to the PitchBook-NVCA Venture Monitor.

In Q1 2026, Houston-area startups raised $532.3 million, a 49 percent jump from $320.2 million in Q1 2025, according to the PitchBook-NVCA Venture Monitor.

However, the Q1 total fell 23 percent from the $671.05 million raised in Q4 2025.

Among the first-quarter funding highlights in Houston were:

  • Utility Global, which focuses on industrial decarbonization, announced a first close of $100 million for its Series D round.
  • Sage Geosystems raised a $97 million Series B round to support its geothermal energy storage technology.

Those funding rounds underscore Houston’s evolution as a magnet for VC in the energy sector.

“Today, the energy sector is increasingly extending into the startup economy as venture capital flows into companies developing the technologies that will shape the future of global energy,” the Greater Houston Partnership says.

The energy industry accounted for nearly 40 percent of Houston-area VC funding last year, according to market research and lead generation service Growth List.

Adding to Houston’s stature in VC for energy startups are investors like Chevron Technology Ventures, the investment arm of Houston-based oil and gas giant Chevron; Goose Capital; Mercury Fund; and Quantum Energy Partners.


From the Rice Business Plan Competition to the Veterans Business Battle, here's what not to miss in April and how to register. Photo courtesy the Ion

8+ can't-miss Houston business and innovation events in April

where to be

Editor’s note: Houston's weeklong innovation festival kicks off April, followed by Rice University's globally recognized pitch competition returning for its 26th year. Plus, find coworking pop-ups, industry meetups, pitch battles and even a crawfish boil on the calendar. Here’s what not to miss and how to register. Please note: this article might be updated to add more events.

March 30-April 4 — H-Town Roundup

Celebrate innovation, entrepreneurship and collaboration at Houston Exponential's sixth-annual H-Town Roundup. During the free event series, previously known as Houston Tech Rodeo, attendees can expect insightful talks, workshops and networking events at venues across the city.

This event began March 30. Register here.

April 2 — Industrious Coworking Day

Enjoy a complimentary day of cowering at Industrious and network with professionals at the Ion. Breakfast, snacks, wifi and workspace tours are included. Following the cowering day, Industrious will host happy hour at Second Draught from 4-6 p.m.

This event is Thursday, April 2, from 8:30 a.m.-5 p.m. at the Ion. Register here.

April 2 — Technology Summit for Women

The fourth annual Women in Tech Cummil will feature speakers across three core tracks: Transformation + Digital strategy, Cyber + Risk + Resilience, and AI in Practice. Pearl Chu, director of technical domains and university relations at SLB, will give the opening remarks. Other panelists come from CenterPoint Energy, BP, Technip Energies and other leading companies.

This event is Thursday, April 2, from 2-5 p.m. at the Ion. Register here.

April 8 — Veterans Business Battle

Hear pitches from veterans and entrepreneurs as they compete for more than $10 million in investments at Rice Businesses' 12th annual Veterans Business Battle. This year, the two-day event will also feature a Small Business Expo, which invites Houston-based, veteran-owned businesses to participate in education, networking and the opportunity to showcase their business. Moonshots Capital and Mercury Fund will also host a fireside chat.

This event begins Wednesday, April 8, at 11 a.m. at the Ion. Click here to register.

April 9-11 — Rice Business Plan Competition

The Rice Alliance for Technology and Entrepreneurship will host the 26th annual Rice Business Plan Competition this month. Forty-two student-led teams from around the world, including one team from Rice, will present their plans before more than 300 angel, venture capital, and corporate investors to compete for more than $1 million in prizes.

This event begins Thursday, April 9. Find more information here.

April 10 — BioHouston Chili Cookoff

Connect with Houston's life sciences community at BioHouston's 21st annual chili cookout. This event is geared toward startup founders, researchers and industry veterans alike.

This event is Friday, April 10, from noon-4 p.m. at Bayou City Event Center. Register here.

April 14 — Mercury Fund Day at the Ion: Agentic Commerce

Don’t miss the latest installment of Mercury Fund Day at the Ion, previously known as Software Day. The recurring monthly event features office hours (by application), a keynote and networking opportunities. This month's topic focuses on agentic commerce.

This event is Tuesday, April 14, from 3:30-7 p.m. at the Ion. Register here.

April 19 – UH Energy Industry Crawfish Boil

Head to the UH Cullen College of Engineering Green Space for the 35th annual UH Energy Industry Crawfish Boil. The event will include a student showcase, STEM activities, a kids zone, live music, networking and, of course, crawfish. Proceeds from the event will support the multidisciplinary capstone fund that aims to increase professional readiness for Cullen College engineering and technology students.

This event is Sunday, April 19, from 1-5 p.m. at the Cullen College of Engineering Green Space. Find more information here.

April 24 — Rice Business Healthcare Conference

Leading experts, innovators and the next generation of healthcare leaders will converge at the Rice Business Healthcare Conference. Hosted by the Rice Business Healthcare Association, the conference will explore AI's potential impact on the sector.

This event is Friday, April 24, from 8 a.m.-2 p.m. at McNair Hall on Rice University's campus. Find more information here.

Catch these Houston innovators at SXSW 2026. Photo courtesy of SXSW

10+ Houston innovation leaders in the spotlight at SXSW 2026

where to be

Houston's innovation scene will be well represented at South by Southwest (SXSW) this month.

The week-long, Austin-based conference and festival will spotlight some of the Bayou City's leaders in health care, energy, space and more. The event kicks off today, March 12, and runs through March 18. The SXSW Innovation Conference will feature keynotes, workshops, mentoring sessions and more throughout various venues in the city.

Here's who to see and when and where to find them:

March 12

Aileen Allen, venture partner at Mercury Fund

Mentor Session from 4-5:15 p.m. at Hilton Austin Downtown

Allen will host a mentoring session focused on funding, marketing, advertising, PR and the future of work.

March 13

Heath Butler, partner at Mercury Fund

SXSW Pitch-Smart Cities, Transportation, Manufacturing & Logistics from 2:30-3:30 p.m. at the J.W. Marriott

Butler will judge five innovative startups as they pitch their solutions to advance smart cities, enhance transportation systems, modernize manufacturing, transform logistics, and strengthen government infrastructure and civic operations.

Jonathan Cirtain, CEO and president of Axiom Space

The Clock is Ticking for Space - Replacing the ISS from 4-5 p.m. at the J.W. Marriott

Cirtain will discuss Axiom's pursuit of building the world’s first commercial space station.

March 14

Jesse Martinez, founder and CEO of LSA Global

SXSW Pitch-Intelligent Systems, Robotics, & Multisensory Technology from 10-11 a.m. at the J.W. Marriott

Martinez will judge five innovative startups as they pitch their technologies that aim to enhance the way people connect, communicate and share unique life experiences with those around them in a digital ecosystem.

Jennifer Schmitt, head of operations at Rhythm Energy

Powering Texas with Reliable Integrated High-Demand Energy from 10-11 a.m. at Marlow

Schmitt will join a panel to discuss how EirGrid, the state-owned electric power transmission operator in Ireland, is pioneering solutions as the country works toward 80 percent renewable integration by 2030.

Saki Sasagawa, director of business development for JETRO Houston

Now is Japan's Time: Leading the Future with Deep Tech from 10-11 a.m. at the J.W. Marriott

Sasagawa joins a panel that will share real-time insights from diverse perspectives on the forefront of Japan’s deep tech and IP businesses.

March 15

Bosco Lai, CEO and co-founder of Little Place Labs

SXSW Pitch Alumni: Where Are They Now? from 10-11 a.m. at the J.W. Marriott

Lai joins a panel of four former SXSW Pitch winners to share how they leveraged the platform to take their startups to the next level.

Tara Karimi, cofounder and chief science and sustainability officer at Cemvita

South by South America: The Rise of Southern Brazil Tech from 2:30-3:30. p.m. at The Line

Karimi will participate in a panel to discuss how Rio Grande do Sul, Brazil's southernmost state, is attracting elite talent and AI infrastructure and share insights on navigating the next wave of South American tech growth.

March 16

Dr. Pavitra P. Krishnamani, emergency medicine physician at The University of Texas MD Anderson Cancer Center

Viva La Revolution: How the Digital Age is Transforming Wellness from 11:30 a.m.-12:30 p.m. at Hilton Austin Downtown

Krishnamani will discuss the latest advancements and policies that can accelerate the digital age of health care, such as wearables, telehealth and artificial intelligence.

March 18

Charlie Childs, co-founder and CEO of Intero Biosystems

Spinning Out: What It Takes to Build a University Startup from 2:30-3:30 p.m. at The Line

Childs will join founders who spun their companies out of the University of Michigan to share the real story of navigating IP, early capital, team building, market validation and the “valley of death.”

Dr. James Allison, regental chair of immunology and director of The Allison Institute at The University of Texas MD Anderson Cancer Center

Dr. Padmanee Sharma, professor in the Department of Genitourinary Medical Oncology, Division of Cancer Medicine at The University of Texas MD Anderson Cancer Center

Beyond Checkpoints: Immunotherapy’s Next Act from 2:30-3:30 p.m. at the J.W. Marriott

Allison and Sharma will sit down with 21-year-old, Stage 4 cancer survivor Sharon Belvin and Time Magazine journalist Alice Park will discuss the future of immunotherapy and what challenges remain.

Last year, Houston startups Little Places Labs and Helix Earth won top prizes in their respective categories at the prestigious SXSW Pitch event, held this year from March 13-14. No Houston startups were named finalists to compete in this year's event.

From recurring monthly favorites to the return of annual celebrations and summits, here's what not to miss in February. Photo courtesy the Ion.

10+ can't-miss Houston business and innovation events in February

where to be

Editor's note: February may be short, but its event calendar isn’t. From recurring monthly favorites to the return of annual celebrations and summits, here's what not to miss and how to register. Please note: this article may be updated to include additional event listings.

Feb. 2 — Entrepreneurship Roundtable with OPEN

Join founders, builders and innovators as they explore what it takes to create, scale and sustain meaningful ventures. This event, hosted by Open Houston, will be moderated by Faisal Bhutto, president and CEO of Houston-based end-to-end IT and cybersecurity company Alykas.

This event is Monday, Feb. 2, from 11 a.m.-1 p.m. at the Ion. Register here.

Feb. 3 — Tech+Tequila Talk: Tax Equity: Aligning Incentives for Founders, Investors & Philanthropy

Hear from guest speaker Cesar de la Cerda, founder and CIO of EnvisionVest, at the latest installment of Tech and Tequila Talk. The event will focus on using the tax code as a powerful fundraising tool.

This event takes place Tuesday, Feb. 3, from 5-7 p.m. at the Ion. Register here.

Feb. 5 — Ion Block Party Mardi Gras

Let the good times roll while networking with potential collaborators, mentors and investors at the Ion. Food and drink will be available, and the Ion will provide drink tickets for one free drink at Second Draught upon check-in.

This event is Thursday, Feb. 5, from 4-7 p.m. at the Ion. Register here.

Feb. 10 — Mercury Fund Day at the Ion

The Ion and Houston's Mercury Fund will host this special event, previously known as Software Day. The event will feature a panel that dives into how Mercury is pushing the boundaries of what’s possible with agentic AI and blockchain. A select group of early-stage software startups will also participate in office hours before the panel. Afterwards, all attendees can network during happy hour at Second Draught.

This event is Tuesday, Feb. 10, from 3:30-7:30 p.m. Register here.

Feb. 11-12 – In-Space Physical AI Workshop

Rice Nexus is bringing together industry leaders, government agencies and academia to explore the cutting edge of AI in space exploration. Matt Ondler, president of Aegis Aerospace, will present the keynote address. Other industry leaders from NASA Johnson Space Center, Intuitive Machines, Microsoft and Rice University and other organizations will participate. The event will close with the Inaugural Space Galette Reception hosted by the Consulate General of France in Houston and the Rice Space Institute.

This event begins Wednesday, Feb. 11, at the Ion. Register here.

Feb. 12 — State of the City

Houston First Corporation and the Greater Houston Partnership will host Mayor John Whitmire’s State of the City luncheon. Whitmire will share an update on his administration’s progress since taking office and highlight his top priorities that will continue to elevate Houston and its economy.

This event is Thursday, Feb. 12, from 11 a.m.-1:30 p.m. at the Hilton Americas-Houston. Register here.

Feb. 12 — Positioning Houston as the Brain Capital of the World

David Gow, CEO of the Center for Houston's Future, will present "Positioning Houston as the Brain Capital of the World" at the University of Houston Honors College Leadership Forum. Gow will share how Project Metis aims to establish Houston as a global hub for brain health research, innovation and economic development.

This event is Thursday, Feb. 12, from 7:30-9:30 a.m. at The Junior League of Houston. Register here.

Feb. 13 — From Research to Enterprise: Immigration & Innovation

Innov8 Hub will host an in-person seminar as part of its Startup Resources Series, focused on the intersection of immigration law, entrepreneurship and technology commercialization. The session will feature guest speakers Mario Cantu, Shilpa Ghurye and Vikesh Patel of KM&D PLLC, who will share insights for founders and innovators navigating legal pathways while building and scaling technology-driven ventures.

The event is Friday, Feb. 13, from 1-2 p.m. at the Innovation Center at UH Technology Bridge, Building 4. Register here.

Feb. 18-20 — TMC AI Summit

UTHealth Houston and Texas Children’s Hospital are bringing back the TMC AI Summit for its third year. This event is focused on translating advanced AI innovations into practical, real-world solutions for the biomedical and healthcare industries. It will be broken up into three tracks and will feature poster and oral presentations, workshops and tutorials, industry talks and student research showcases.

The event begins Wednesday, Feb. 18, at the Duncan Neurological Research Institute. Register here.

Feb. 26 — Transition on Tap

Greentown Labs’ signature networking event returns in February to foster conversations and connections within Houston's climate and energy transition ecosystem. Entrepreneurs, investors, students, philanthropists and more are invited to attend, meet colleagues, discuss solutions and engage with the growing community.

The event begins Monday, Feb. 26, from 5:30-7:30 p.m. at Greentown Labs. Register here.

Feb. 26 — NASA Tech Talk

Every fourth Thursday of the month, NASA experts, including longtime engineer Montgomery Goforth, present on technology development challenges NASA’s Johnson Space Center and the larger aerospace community are facing, and how they can be leveraged by Houston’s innovation community. Stick around after for drinks and networking at Second Draught.

This event is Thursday, Feb. 26, from 6-7 p.m. at the Ion. Register here.

Houston-based Collide plans to use its seed funding to accelerate the development of its GenAI platform for the energy industry. Photo via Getty Images

Houston startup Collide secures $5M to grow energy-focused AI platform

Fresh Funds

Houston-based Collide, a provider of generative artificial intelligence for the energy sector, has raised $5 million in seed funding led by Houston’s Mercury Fund.

Other investors in the seed round include Bryan Sheffield, founder of Austin-based Parsley Energy, which was acquired by Dallas-based Pioneer Natural Resources in 2021; Billy Quinn, founder and managing partner of Dallas-based private equity firm Pearl Energy Investments; and David Albin, co-founder and former managing partner of Dallas-based private equity firm NGP Capital Partners.

“(Collide) co-founders Collin McLelland and Chuck Yates bring a unique understanding of the oil and gas industry,” Blair Garrou, managing partner at Mercury, said in a news release. “Their backgrounds, combined with Collide’s proprietary knowledge base, create a significant and strategic moat for the platform.”

Collide, founded in 2022, says the funding will enable the company to accelerate the development of its GenAI platform. GenAI creates digital content such as images, videos, text, and music.

Originally launched by Houston media organization Digital Wildcatters as “a professional network and digital community for technical discussions and knowledge sharing,” the company says it will now shift its focus to rolling out its enterprise-level, AI-enabled solution.

Collide explains that its platform gathers and synthesizes data from trusted sources to deliver industry insights for oil and gas professionals. Unlike platforms such as OpenAI, Perplexity, and Microsoft Copilot, Collide’s platform “uniquely accesses a comprehensive, industry-specific knowledge base, including technical papers, internal processes, and a curated Q&A database tailored to energy professionals,” the company said.

Collide says its approximately 6,000 platform users span 122 countries.

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

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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.

Houston healthtech startup raises $30M to scale surgical healing gel

fresh funding

Houston-based healthtech startup TYBR Health has raised a $30 million Series A round to scale its B3 GEL System, which helps protect tendons from scarring after surgery.

The round was led by Minneapolis-based Vensana Capital and Cleveland-based Mutual Capital Partners, with participation from Denver-based Neovate Capital Partners and existing investors, according to a news release from the company.

TYBR Health said it plans to use the funding to broaden the B3 GEL System's clinical applications, expand commercialization and conduct studies to evaluate its ability to protect tissue and improve healing outcomes.

"Surgeons are exceptionally good at the structural repair, but the biology that follows is what determines how it heals. That part of the equation has gone largely unaddressed ... There's a shift underway across surgical specialties, from focusing almost entirely on the mechanical repair to also weighing the biological conditions that repair needs to succeed," Tim Keane, co-founder and CEO of TYBR Health, said in the news release. "This financing lets us reach more surgeons and generate the clinical evidence to move that shift forward."

As part of the financing round, Greg Banker of Vensana Capital and Liz Todia Zambory of Mutual Capital Partners will join the TYBR board, alongside independent director Aaron Smith.

"TYBR Health is addressing a gap surgeons have lived with for a long time, with a product that fits the way they already work," Zambory, principal at Mutual Capital Partners, added in the release. "We're excited to co-lead this round and support the company's growth."

TYBR was founded in 2020 and originated from the TMCi’s Biodesign fellowship and participated in the TMC's Accelerator for HealthTech. Its B3 GEL System is a flowable extracellular matrix hydrogel designed to protect tendons, ligaments, muscles, and the surrounding soft tissue while they heal from orthopedic surgery. It received FDA 510(k) clearance last June and launched an Australian clinical trial in the fall.

The B3 GEL System has been used in hand, wrist, shoulder, foot and ankle, and sports medicine procedures since it launched, according to the company, and was first used in the clinical setting earlier this year by Dr. Tammam Hanna with Texas Tech University Health Sciences Center.

Houston space companies win NASA funding to build Mars exploration robots

mission to mars

Two Houston-area spacetech companies have landed a portion of a $17 million award from NASA to develop robots for exploring the surface of Mars, the agency announced this month.

Houston-based Inuitive Machines and Webster, Texas-based MEI Technologies, which does business as Aegis Aerospace, were among the seven companies selected to receive the funding from NASA's Science Transport and Robotic Innovation for Deployment and Exploration (STRIDE) initiative.

According to the release from NASA, the companies are tasked with creating "innovative mobility systems" that would allow future Mars missions to access more challenging terrain and difficult-to-reach regions of the planet, and to travel farther distances. NASA estimated that the work will begin this fall.

NASA solicited proposals for participants in the STRIDE initiative in January. The seven named companies are the first selected to participate in the program.

The additional five companies to receive STRIDE funding include:

"STRIDE demonstrates NASA’s commitment to strong public-private partnerships, allowing the agency to explore new approaches for Mars surface exploration while identifying key capability gaps and development needs for commercial systems that could operate and traverse realistic Martian environments," NASA shared in the announcement.

Last month, Intuitive Machines was awarded $148.3 million to deliver its Nova-C lander to the moon. The funding was part of $600 million the space agency awarded to three companies as part of its Moon Base Program and was Intuitive Machines' sixth task order under NASA's Commercial Lunar Payload Services (CLPS) program. Astrobotic was also one of the companies to land funding for the Moon Base program, as well as Austin-based Firefly Aerospace.

Around the same time, Firefly Aerospace was awarded a $13 million subcontract from NASA’s Jet Propulsion Laboratory to develop technology for NASA’s SkyFall mission to Mars. The mission aims to deploy three Mars helicopters to "perform science and demonstrate airborne subsurface mapping and resource prospecting on the planet." Read more here.

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