Lockheed Martin Ventures says it's committed to helping Houston-based Venus Aerospace scale its technology. Photo courtesy Venus Aerospace

Venus Aerospace picks up investment from Lockheed Martin Ventures

space funding

Venus Aerospace, a Houston-based startup specializing in next-generation rocket engine propulsion, has received funding from Lockheed Martin Ventures, the investment arm of aerospace and defense contractor Lockheed Martin, for an undisclosed amount. The product lineup at Lockheed Martin includes rockets.

The investment follows Venus’ successful high-thrust test flight of its rotating detonation rocket engine (RDRE) in May. Venus says it’s the only company in the world that makes a flight-proven, high-thrust RDRE with a “clear path to scaled production.”

Venus says the Lockheed Martin Ventures investment reflects the potential of Venus’ dual-use technology for defense and commercial uses.

“Venus has proven in flight the most efficient rocket engine technology in history,” Venus co-founder and CEO Sassie Duggleby, a board member of the Texas Space Commission, said in a news release. “With support from Lockheed Martin Ventures, we will advance our capabilities to deliver at scale and deploy the engine that will power the next 50 years of defense, space, and commercial high-speed aviation.”

Chris Moran, executive director and general manager of Lockheed Martin Ventures, said Lockheed Martin has been a longtime supporter of early-stage “transformational” technologies.

“Our investment in Venus Aerospace reflects a conviction that next-generation propulsion will define which nations lead in space and defense for decades to come,” Moran added in the release. “We are committed to helping Venus scale this technology and integrate it into critical systems.”

Since its founding in 2020, Venus has secured more than $106 million in funding. In addition to Lockheed Martin Ventures, investors include Airbus Ventures, America’s Frontier Fund, Trousdale Ventures, and Prime Movers Lab. Supporters of Venus include NASA, the Air Force Research Lab and the Defense Advanced Research Projects Agency (DARPA).
Pamela Melroy, a member of the United States Astronaut Hall of Fame, has joined Venus Aerospace's board of directors. Photo courtesy Venus Aerospace/PRNewsFotos.

Former NASA astronaut, official joins Venus Aerospace board

astronaut appointment

Retired Air Force colonel and former NASA astronaut Pamela Melroy, who previously served as deputy administrator of NASA, recently joined the board of directors at Houston-based Venus Aerospace.

Venus Aerospace, a startup founded in 2020, develops rocket engine technology, including rotating rocket detonation engines for hypersonic flights. These engines promise higher power, greater fuel efficiency and lower emissions than conventional rocket engines or jet engines, according to the Interesting Engineering website. The global rocket propulsion market is expected to grow from $9.5 billion in 2025 to $29.9 billion by 2034, according to a forecast by ResearchAndMarkets.com.

“Advanced rocket propulsion has been of interest to me for over a decade, and Venus Aerospace’s recent achievements in demonstrating the stability of rotating detonation rocket engines represent a significant development,” says Melroy, who left NASA earlier this year and is now a self-employed consultant living in Arlington, Virginia.

Melroy, a member of the United States Astronaut Hall of Fame, has built an illustrious career in the aerospace sector. Aside from being a NASA official, she was:

  • One of only two female astronauts to command a space shuttle mission
  • Deputy program manager of Orion space exploration initiatives at aerospace and defense contractor Lockheed Martin
  • Senior technical adviser and director of field operations for the Federal Aviation Administration’s Office of Commercial Space Transportation, where she came up with the first safety guidelines for commercial human spaceflight
  • Deputy director of the Tactical Technology Office at the Defense Advanced Research Projects Agency (DARPA).
  • An adviser for the establishment of the Australian Space Agency

Venus Aerospace said in a news release that as a leader at three federal agencies, “Melroy shaped America’s strategy in space, accelerated commercial space partnerships, and deepened space exploration.”

Sassie Duggleby, co-founder and CEO of Venus Aerospace, called Melroy “a preeminent leader in the world of aerospace.”

In May, Venus Aerospace completed the inaugural test flight of its rotating detonation rocket engine. The startup, whose headquarters is at the Houston Spaceport, says it’s the only company in the world that has manufactured a flight-proven, high-thrust rotating detonation rocket engine.

On the horizon for Venus Aerospace is production of Stargazer M4, a high-speed aircraft capable of two-hour global travel.

Venus Aerospace’s investors include Airbus Ventures, America’s Frontier Fund, Trousdale Ventures, and Prime Movers Lab. The startup also gets support from the Air Force Research Laboratory (AFWERX), the Air Force, NASA and DARPA.

Jordan Blashek, co-founder and managing partner of America’s Frontier Fund, which backs startups creating breakthrough technologies, said his firm’s investment in Venus Aerospace “underscores our focus on supporting American companies that are revolutionizing industries of the future.”

“With recent hypersonic advancements from China and Russia, safeguarding American innovation and securing our industrial base has never been more urgent,” Blashek added. “Venus Aerospace is poised to redefine hypersonic flight and ensure America’s continued leadership in aerospace innovation.”

Since its founding, Venus Aerospace has raised $78.3 million in investments, according to PitchBook data.

From insightful talks to a young professionals summit, here's what not to miss and how to register. Photo via Getty Images

11 can't-miss Houston business and innovation events for August

where to be

Editor's note: The tech event scene is heating up in August. From insightful talks to a young professionals summit, here's what not to miss and how to register. Please note: this article may be updated to include additional event listings.

Aug. 5 – Tech and Tequila Talk

Hear from guest speaker David Cohen, founder & CEO of Dallas-based Superposition, at the latest installment of Tech and Tequila Talk. The event will focus on breaking down ambiguity in data and AI projects through collaborative workshops.

This event takes place Tuesday, Aug. 5, from 5-7 p.m. at the Ion. Click here to register.

Aug. 11-16 – Black is Tech Week

Black is Tech Week will bring events for tech professionals, entrepreneurs and students to Houston through summits, career fairs, networking events and more. The event will feature speakers from Amazon, Microsoft, Google and many other companies.

This event begins Monday, Aug. 1. Find more information here.

Aug. 12 – NASA Stories at the Ion

Head to the Ion for the new morning series spotlighting the human side of space exploration. Each session will feature personal and powerful stories from astronauts and key NASA personnel. Anthony Vareha, NASA Flight Director and Flight Operations Directorate, whose primary duty is the safe operation of the International Space Station will speak this month.

This event begins Tuesday, Aug. 12, from 8:30-10 a.m. Find more information here.

Aug. 14 – Pickle Lab’s One-Year Anniversary Celebration

Enjoy an afternoon of open-play pickleball, beats by a live DJ, raffle giveaways and free swag at the first anniversary celebration of Pickle Lab in the Ion District. WonderPops will provide complimentary pops while supplies last, and Second Draught will serve each guest a free beverage.

This event takes place Thursday, Aug. 14, from 4-7 p.m. RSVP here.

Aug 19 – Navigating the Economy: Insights from Darren King

Darren King, chief investment officer of Moody Bank, will share his expert insights on the state of the economy and its impact on Houston’s future. Gain a deeper understanding of market trends, economic shifts and what they mean for businesses and individuals in the city.

This event takes place Tuesday, Aug. 19, from 11:30-1 p.m. RSVP here.

Aug. 21 – Transition on Tap

Greentown Labs’ signature networking event returns in August 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.

This event takes place Thursday, Aug. 21, at 5:30 p.m. at Greentown Labs. Click here to register.

Aug. 22 – Determined to Lead Women Lunch: Investing Through Market Cycles with Ellen Wilkirson

EnergyTech Nexus hosts a monthly Determined to Lead Women’s Lunch as part of its ongoing efforts to create safe spaces for women leaders in the energy transition to connect, learn and lead. The August session features Ellen Wilkirson, principal at Rev Innovations. With deep experience across traditional and transition energy sectors, Wilkirson will share how she’s approached investing through multiple market and commodity cycles and what it means to be a clean energy investor in today’s evolving landscape.

This event takes place Friday, Aug. 22, at 1 p.m. Click here to register.

Aug. 26 – Software Day at the Ion: Positioning your Startup to Capitalize on Market Trends

Software Day is a monthly series driving the support, inspiration and connections needed to help startups on their path to rapid, sustainable growth. Each month, Software Day will include office hours (by application), a keynote session and networking. This month’s panel discussion will feature Remington Tonar, co-founder of Cart.com, and Josh Teekell, founder of SmartAC.com.

This event takes place Tuesday, Aug. 26, from 3:30-7 p.m. Click here to register.

Aug. 27 – Future of Flight: Inside Venus Aerospace with Founder Sassie Duggleby

Join EO Houston for an exclusive, behind-the-scenes conversation with Sassie Duggleby, co-founder and CEO of Venus Aerospace, a Houston-based company pioneering breakthrough propulsion systems for hypersonic and space applications.

This event takes place Wednesday, Aug. 27, at 10 a.m. at Venus Aerospace. It is open to EO members and partners only. Click here to register.

Aug. 27 – The Future of American Science: A Conversation With US Rep. Brian Babin

U.S. Rep. Dr. Brian Babin and Paul Cherukuri, vice president of innovation at Rice University, will discuss how the United States remains at the forefront of space exploration, emerging technologies and scientific advancement, as well as what's next and what's at stake for the future of science policy.

This event takes place Wednesday, Aug. 27, from 3-4 p.m. at James A. Baker III Hall on Rice University's campus. Click here to register.

Aug. 28 – HYPE Summit

The third annual Houston Young Professionals and Entrepreneurs (HYPE) Summit is a day-long conference featuring panel discussions with business and thought leaders, workshop-style breakout sessions and networking opportunities. This year's event—under the theme Step Into the Spotlight—will feature speakers from First Bight Ventures, Bot Auto, Regions Bank, Lopez Negrete Communications and Umbrage.

This event takes place Thursday, Aug. 28, from 8:30 a.m.-5:30 p.m. at The Hobby Center for the Performing Arts. Click here to register.

Venus Aerospace successfully completed the flight test of its hypersonic engine, the first of an American-developed engine of its kind. Photo courtesy Venus Aerospace

Houston aerospace co. soars with first U.S. test flight of hypersonic engine

taking off

Houston-based Venus Aerospace successfully completed the first U.S. flight test of its proprietary engine at a demonstration at Spaceport America in New Mexico.

Venus’ next-generation rotating detonation rocket engine (RDRE) is supported by a $155,908 federal Small Business Innovation Research (SBIR) grant from NASA and aims to enable vehicles to travel four to six times the speed of sound from a conventional runway. The recent flight test was the first of an American-developed engine of its kind.

"With this flight test, Venus Aerospace is transforming a decades-old engineering challenge into an operational reality,” Thomas d'Halluin, managing partner at Airbus Ventures, an investor in Venus, said in a news release. “Getting a rotating detonation engine integrated, launch-ready, and validated under real conditions is no small feat. Venus has shown an extraordinary ability to translate deep technical insight into hardware progress, and we're proud to support their bold approach in their attempt to unlock the hypersonic economy and forge the future of propulsion."

Venus’ RDRE operates through supersonic shockwaves, called detonations, that generate more power with less fuel. It is designed to be affordable and scalable for defense and commercial systems.

The RDRE is also engineered to work with the company's air-breathing detonation ramjet, the VDR2, which helps enable aircraft to take off from a runway and transition to speeds exceeding Mach 6. Venus plans for full-scale propulsion testing and vehicle integration of this system. Venus’ ultimate goal is to develop a Mach 4 reusable passenger aircraft, known as the Stargazer M4.

"This milestone proves our engine works outside the lab, under real flight conditions," Andrew Duggleby, Venus co-founder and chief technology officer, said in the release. "Rotating detonation has been a long-sought gain in performance. Venus' RDRE solved the last but critical steps to harness the theoretical benefits of pressure gain combustion. We've built an engine that not only runs, but runs reliably and efficiently—and that's what makes it scalable. This is the foundation we need that, combined with a ramjet, completes the system from take-off to sustained hypersonic flight."

The hypersonic market is projected to surpass $12 billion by 2030, according to Venus.

"This is the moment we've been working toward for five years," Sassie Duggleby, CEO and co-founder of Venus Aerospace, added in the release. "We've proven that this technology works—not just in simulations or the lab, but in the air. With this milestone, we're one step closer to making high-speed flight accessible, affordable, and sustainable."

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Houston climbs to top 10 spot on North American tech hubs index

tech report

Houston already is the Energy Capital of the World, and now it’s gaining ground as a tech hub.

On Site Selection magazine’s 2026 North American Tech Hub Index, Houston jumped to No. 10 from No. 16 last year. The index relies on data from Site Selection as well as data from CBRE, CompTIA and TeleGeography to rank the continent’s tech hotspots. The index incorporates factors such as internet connectivity, tech talent and facility projects for tech companies.

In 2023, the Greater Houston Partnership noted the region had “begun to receive its due as a prominent emerging tech hub, joining the likes of San Francisco and Austin as a major player in the sector, and as a center of activity for the next generation of innovators and entrepreneurs.”

The Houston-area tech sector employs more than 230,000 people, according to the partnership, and generates an economic impact of $21.2 billion.

Elsewhere in Texas, two other metros fared well on the Site Selection index:

  • Dallas-Fort Worth nabbed the No. 1 spot, up from No. 2 last year.
  • Austin rose from No. 8 last year to No. 7 this year.

San Antonio slid from No. 18 in 2025 to No. 22 in 2026, however.

Two economic development officials in DFW chimed in about the region’s No. 1 ranking on the index:

  • “This ranking affirms what we’ve long seen on the ground — Dallas-Fort Worth is a top-tier technology and innovation center,” said Duane Dankesreiter, senior vice president of research and innovation at the Dallas Regional Chamber. “Our region’s scale, talent base, and diverse strengths … continue to set DFW apart as a national leader.”
  • “Being recognized as the top North American tech hub underscores the strength of the entire Dallas-Fort Worth region as a center of innovation and next-generation technology,” said Robert Allen, president and CEO of the Fort Worth Economic Development Partnership.

While not directly addressing Austin’s Site Selection ranking, Thom Singer, CEO of the Austin Technology Council, recently pondered whether Silicon Hills will grow “into the kind of community that other cities study for the right reasons.”

“Austin tech is not a club. It is not a scene. It is not a hashtag, a happy hour, or any one place or person,” Singer wrote on the council’s blog. “Austin tech is an economic engine and a global brand, built by thousands of people who decided to take a risk, build something, hire others, and be part of a community that is still young enough to reinvent itself.”

South of Austin, Port San Antonio is driving much of that region’s tech activity. Occupied by more than 80 employers, the 1,900-acre tech and innovation campus was home to 18,400 workers in 2024 and created a local economic impact of $7.9 billion, according to a study by Zenith Economics.

“Port San Antonio is a prime example of how innovation and infrastructure come together to strengthen [Texas’] economy, support thousands of good jobs, and keep Texas competitive on the global stage,” said Kelly Hancock, the acting state comptroller.

14 Houston startups starting 2026 with fresh funding

cha-ching

Houston startups closed out the last half of 2025 with major funding news.

Here are 14 Houston companies—from groundbreaking energy leaders to growing space startups—that secured funding in the last six months of the year, 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.

Fervo Energy

Fervo Energy has closed an oversubscribed Series E. Photo via Fervo Energy

Houston-based geothermal energy company Fervo Energy closed an oversubscribed $462 million series E funding round, led by new investor B Capital, in December.

The company also secured $205.6 million from three sources in June.

“Fervo is setting the pace for the next era of clean, affordable, and reliable power in the U.S.,” Jeff Johnson, general partner at B Capital, said in a news release.

The funding will support the continued buildout of Fervo’s Utah-based Cape Station development, which is slated to start delivering 100 MW of clean power to the grid beginning in 2026. Cape Station is expected to be the world's largest next-generation geothermal development, according to Fervo. The development of several other projects will also be included in the new round of funding. Continue reading.

Square Robot

Houston robotics co. unveils new robot that can handle extreme temperatures

Square Robot's technology eliminates the need for humans to enter dangerous and toxic environments. Photo courtesy of Square Robot

Houston- and Boston-based Square Robot Inc. announced a partnership with downstream and midstream energy giant Marathon Petroleum Corp. (NYSE: MPC) last month.

The partnership came with an undisclosed amount of funding from Marathon, which Square Robot says will help "shape the design and development" of its submersible robotics platform and scale its fleet for nationwide tank inspections. Continue reading.

Eclipse Energy

Eclipse Energy and Weatherford International are expected to launch joint projects early this year. Photo courtesy of Eclipse Energy.

Oil and gas giant Weatherford International (NASDAQ: WFRD) made a capital investment for an undisclosed amount in Eclipse Energy in December as part of a collaborative partnership aimed at scaling and commercializing Eclipse's clean fuel technology.

According to a release, joint projects from the two Houston-based companies are expected to launch as soon as this month. The partnership aims to leverage Weatherford's global operations with Eclipse Energy's pioneering subsurface biotechnology that converts end-of-life oil fields into low-cost, sustainable hydrogen sources. Continue reading.

Venus Aerospace 

Lockheed Martin Ventures says it's committed to helping Houston-based Venus Aerospace scale its technology. Photo courtesy Venus Aerospace

Venus Aerospace, a Houston-based startup specializing in next-generation rocket engine propulsion, has received funding from Lockheed Martin Ventures, the investment arm of aerospace and defense contractor Lockheed Martin, for an undisclosed amount, the company announced in November. The product lineup at Lockheed Martin includes rockets.

The investment follows Venus’ successful high-thrust test flight of its rotating detonation rocket engine (RDRE) in May. Venus says it’s the only company in the world that makes a flight-proven, high-thrust RDRE with a “clear path to scaled production.”

Venus says the Lockheed Martin Ventures investment reflects the potential of Venus’ dual-use technology for defense and commercial uses. Continue reading.

Koda Health

Tatiana Fofanova and Dr. Desh Mohan, founders of Koda Health, which recently closed a $7 million series A. Photo courtesy Koda Health.

Houston-based digital advance care planning company Koda Health closed an oversubscribed $7 million series A funding round in October.

The round, led by Evidenced, with participation from Mudita Venture Partners, Techstars and Texas Medical Center, will allow the company to scale operations and expand engineering, clinical strategy and customer success, according to a news release.

The company shared that the series A "marks a pivotal moment," as it has secured investments from influential leaders in the healthcare and venture capital space. Continue reading.

Hertha Metals

U.S. Rep. Morgan Luttrell, a Magnolia Republican, and Hertha Metals founder and CEO Laureen Meroueh toured Hertha’s Conroe plant in August. Photo courtesy Hertha Metals/Business Wire.

Conroe-based Hertha Metals, a producer of substantial steel, hauled in more than $17 million in venture capital from Khosla Ventures, Breakthrough Energy Fellows, Pear VC, Clean Energy Ventures and other investors.

The money was put toward the construction and the launch of its 1-metric-ton-per-day pilot plant in Conroe, where its breakthrough in steelmaking has been undergoing tests. The company uses a single-step process that it claims is cheaper, more energy-efficient and equally as scalable as conventional steelmaking methods. The plant is fueled by natural gas or hydrogen.

The company, founded in 2022, plans to break ground early this year on a new plant. The facility will be able to produce more than 9,000 metric tons of steel per year. Continue reading.

Helix Earth Technologies, Resilitix Intelligence and Fluxworks Inc.

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, Resilitix Intelligence and Fluxworks Inc. each secured $1.2 million in federal funding through the Small Business Innovation Research (SBIR) Phase II grant program this fall.

The three grants from the National Scienve foundation officially rolled out in early September 2025 and are expected to run through August 2027, according to the NSF. The SBIR Phase II grants support in-depth research and development of ideas that showed potential for commercialization after receiving Phase I grants from government agencies.

However, congressional authority for the program, often called "America's seed fund," expired on Sept. 30, 2025, and has stalled since the recent government shutdown. Continue reading.

Solidec Inc. (pre-seed)

7 innovative startups that are leading the energy transition in Houston

Houston-based Solidec was founded around innovations developed by Rice University associate professor Haotian Wang (far left). Photo courtesy Greentown Labs.

Solidec, a Houston startup that specializes in manufacturing “clean” chemicals, raised more than $2 million in pre-seed funding in August.

Houston-based New Climate Ventures led the oversubscribed pre-seed round, with participation from Plug and Play Ventures, Ecosphere Ventures, the Collaborative Fund, Safar Partners, Echo River Capital and Semilla Climate Capital, among other investors. Continue reading.

Molecule

Sameer Soleja is the founder and CEO of Molecule, which just closed its series B round. Photo courtesy of Molecule Software.

Houston-based energy trading risk management (ETRM) software company Molecule completed a successful series B round for an undisclosed amount, according to a July 16 release from the company.

The raise was led by Sundance Growth, a California-based software growth equity firm. Sameer Soleja, founder and CEO of Molecule, said in the release that the funding will allow the company to "double down on product innovation, grow our team, and reach even more markets." Continue reading.

Rarefied Studios, Solidec Inc. and Affekta

Houston startups were named among the nearly 300 recipients that received a portion of $44.85 million from NASA to develop space technology this fall. Photo via NASA/Ben Smegelsky

Houston-based Rarefied Studios, Solidec Inc. and Affekta were granted awards from NASA this summer to develop new technologies for the space agency.

The companies are among nearly 300 recipients that received a total agency investment of $44.85 million through the Small Business Innovation Research (SBIR) and Small Business Technology Transfer (STTR) Phase I grant programs, according to NASA.

Each selected company received $150,000 and, based on their progress, will be eligible to submit proposals for up to $850,000 in Phase II funding to develop prototypes. The SBIR program lasts for six months and contracts small businesses. Continue reading.

Intuitive Machines 

Intuitive Machines expects to begin manufacturing and flight integration on its orbital transfer vehicle as soon as 2026. Photo courtesy Intuitive Machines.

Houston-based Intuitive Machines secured a $9.8 million Phase II government contract for its orbital transfer vehicle in July.

The contract was expected to push the project through its Critical Design Review phase, which is the final engineering milestone before manufacturing can begin, according to a news release from the company. Intuitive Machines reported that it expected to begin manufacturing and flight integration for its orbital transfer vehicle as soon as this year, once the design review is completed.

The non-NASA contract is for an undisclosed government customer, which Intuitive Machines says reinforces its "strategic move to diversify its customer base and deliver orbital capabilities that span commercial, civil, and national security space operations." Continue reading.

NRG inks new virtual power plant partnership to meet surging energy demands

Powering Up

Houston-based NRG Energy recently announced a new long-term partnership with San Francisco-based Sunrun that aims to meet Texas’ surging energy demands and accelerate the adoption of home battery storage in Texas. The partnership also aligns with NRG’s goal of developing a 1-gigawatt virtual power plant by connecting thousands of decentralized energy sources by 2035.

Through the partnership, the companies will offer Texas residents home energy solutions that pair Sunrun’s solar-plus-storage systems with optimized rate plans and smart battery programming through Reliant, NRG’s retail electricity provider. As new customers enroll, their stored energy can be aggregated and dispatched to the ERCOT grid, according to a news release.

Additionally, Sunrun and NRG will work to create customer plans that aggregate and dispatch distributed power and provide electricity to Texas’ grid during peak periods.

“Texas is growing fast, and our electricity supply must keep pace,” Brad Bentley, executive vice president and president of NRG Consumer, said in the release. “By teaming up with Sunrun, we’re unlocking a new source of dispatchable, flexible energy while giving customers the opportunity to unlock value from their homes and contribute to a more resilient grid

Participating Reliant customers will be paid for sharing their stored solar energy through the partnership. Sunrun will be compensated for aggregating the stored capacity.

“This partnership demonstrates the scale and strength of Sunrun’s storage and solar distributed power plant assets,” Sunrun CEO Mary Powell added in the release. “We are delivering critical energy infrastructure that gives Texas families affordable, resilient power and builds a reliable, flexible power plant for the grid.”

In December, Reliant also teamed up with San Francisco tech company GoodLeap to bolster residential battery participation and accelerate the growth of NRG’s virtual power plant network in Texas.

In 2024, NRG partnered with California-based Renew Home to distribute hundreds of thousands of VPP-enabled smart thermostats by 2035 to help households manage and lower their energy costs. At the time, the company reported that its 1-gigawatt VPP would be able to provide energy to 200,000 homes during peak demand.

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This article originally appeared on EnergyCapitalHTX.com.