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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Eli Lilly is looking to Houston for a new facility. Getty Images

Pharmaceutical giant plans $5.9B Houston facility and more news to know

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Editor's note: It's time to look back at the top Houston innovation news from the second half of May 2025. From exciting VC raises to major manufacturing facilities in the works, here are the most-read InnovationMap stories from May 16-30.

1. Pharmaceutical giant looks to bring $5.9 billion facility to Houston

Eli Lilly is looking to build an active pharmaceutical ingredient manufacturing facility at Generation Park. Rendering courtesy of McCord

Pharmaceutical company Eli Lilly and Company is looking to build a $5.9 billion active pharmaceutical ingredient (API) manufacturing facility in Houston, according to a recent filing with the state of Texas.

The proposal states that the project plans to employ 604 full-time direct employees at the site upon ramp-up completion. Construction is projected to begin in 2026, with a completion target of 2030 and commercial operations beginning in 2031. Continue reading.

2. Houston VC firm closes $21M fund for underrepresented founders

Zach Ellis, founder and general partner of South Loop Ventures, which recently closed its debut fund. Photo via LinkedIn

Houston-based South Loop Ventures recently closed its debut fund for more than $21 million, led by investments from Rice Management Company and Chevron Technology Ventures.

The funds will go toward teams with at least one underrepresented founder of color working in the energy, health, space, sports and fintech sectors. Additional investments came from The Great Commission Foundation of the Episcopal Diocese of Texas, Texas CapitalBank and others organizations. Continue reading.

3. Houston-founded startup raises $1.2M and moves headquarters to Detroit

ChurchSpace, founded in Houston by Day Edwards and Emmanuel Brown, is moving to Detroit. Photo courtesy ChurchSpace.

Houston-founded ChurchSpace, known as the Airbnb for churches, has formed an official partnership with the City of Detroit and will relocate its headquarters.

The announcements come as the company successfully closed a $1.2 million oversubscribed funding round. The round was led by California-based Black Ops Ventures, with participation from Michigan Rise and Dug Song of Minor Capital, who is also the founder of the Song Foundation, another Michigan-based organization. Continue reading.

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

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-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. Continue reading.

5. Houston regenerative medicine company expands lab for future trials

FibroBiologics has opened a new 10,000-square-foot Houston lab to scale up research efforts and pave the way for in-house manufacturing. Photo via Fibrobiologics.com

A Houston regenerative medicine company has unveiled new laboratory space with the goal of expanding its pioneering science.

FibroBiologics uses fibroblasts, the body’s most common type of cell, rather than stem cells, to help grow new cells. With its new space, the publicly traded company, which has more than 240 patents issued or pending, will be even better equipped to power forward with its research. Continue reading.

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."

Venus Aerospace has used a Small Business Innovation Research (SBIR) grant from NASA to develop new features of its compact rocket engine for hypersonic flights. Photo courtesy of Venus Aerospace.

Houston space tech company develops new hypersonic engine features with NASA funding

testing 1, 2, 3

Outfitted with a new type of aerospace technology, a rocket engine developed by Houston startup Venus Aerospace for hypersonic flights will undergo testing this summer.

Supported by a $155,908 federal Small Business Innovation Research (SBIR) grant from NASA, Venus Aerospace came up with a new design for nozzles — engine parts that help manage power — for its compact rocket engine. Venus Aerospace says the newly configured nozzles have “exceeded expectations” and will be incorporated into Venus’ upcoming ground-based engine testing.

“We’ve already proven our engine outperforms traditional systems on both efficiency and size,” Venus Aerospace CEO Sassie Duggleby says. “The technology we developed with NASA’s support will now be part of our integrated engine platform — bringing us one step closer to proving that efficient, compact, and affordable hypersonic flight can be scaled.”

The engine at the heart of Venus’ flight platform is called a rotating detonation rocket engine (RDRE). Venus says it’s the first U.S. company to make a scalable, affordable, flight-ready RDRE.

Unlike conventional rocket engines, Venus’ RDRE operates through supersonic shockwaves, called detonations, that generate more power with less fuel.

“This is just the beginning of what can be achieved with Venus propulsion technology,” says Andrew Duggleby, chief technology officer at Venus, founded in 2020. “We’ve built a compact high-performance system that unlocks speed, range, and agility across aerospace, defense, and many other applications. And we’re confident in its readiness for flight.”

Last fall, the company unveiled a high-speed engine system that enables takeoff, acceleration, and hypersonic cruising — all powered by a single engine. While most high-speed systems require multiple engines to operate at different speeds, Venus’ innovation does away with the cost, weight and complexity of traditional propulsion technology.

Among other applications, the Venus system supports:

  • Spacecraft landers
  • Low-earth-orbit satellites
  • Vehicles that haul space cargo
  • Hypersonic drones and missiles
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Q&A: TIME100 AI honoree Angle Bush on building Houston’s artificial intelligence future

AI builder

Angle Bush, founder and CEO of Black Women in Artificial Intelligence, has a running question for her organization's members: Are you in the lab?

For Bush, inquiry isn’t philosophical. Learning about artificial intelligence is one thing. But building with it? Developing products, solving problems and creating a stake in the emerging AI economy? That’s another thing entirely—and exactly the point.

Bush’s own path into AI began in 2019 with an unlikely project: a robot named Usher, designed to bring her hot cocoa. She went down what she calls “YouTube University” to figure out how to build it and kept encountering another subject: artificial intelligence. Her curiosity eventually led her to a Houston AI event, where she noticed something missing.

She didn’t see a full reflection of herself, prompting a bigger question: If AI was becoming a transformative force, who would have a role in shaping it? Her answer became the premise for what came next: There couldn’t be an AI revolution without Black women.

Bush never finished Usher. Instead, she built Black Women in Artificial Intelligence, which has grown into a global organization with members across five continents.

Six years after launching BWIAI, the Houston founder was named to the 2026 TIME100 AI, TIME’s annual list recognizing 100 of the world’s most influential people in artificial intelligence.

The recognition is significant, but Bush is focused on what comes next: moving people beyond AI literacy and adoption and into creation—turning ideas into deployed products, building economic opportunity and ensuring more people have a hand in shaping the technology.

That mission brings Bush back to Houston, where she sees an opportunity to build on the city’s entrepreneurial culture while advancing conversations around responsible and ethical AI.

InnovationMap spoke with Bush about her TIME100 AI recognition, her push to get more people building with AI, Houston’s role in the technology’s future and her simple message: Get in the lab.

InnovationMap: What accomplishment at BWIAI are you most proud of?

Angle Bush: This past March, 11 of our members designed and deployed products and services utilizing artificial intelligence. For me, that's what we want to do. We're looking for builders. I continually ask our members: Are you in the lab? What are you building?

We have members here in Houston who built a conference app designed to help people better understand and navigate the conference experience. We also have Shonda and Shalisha Witherspoon, The Digital Twins, who created a patent assistant to help individuals interested in creating a patent for their product or service.

For me, watching those women move dreams from notebooks to deployment is more important than anything else. Notebooks are designed to hold your dreams, but not keep your dreams.

For NVIDIA's GPU Technology Conference, if you wanted to participate as part of the Black Women in AI delegation, you had to build something. You couldn't just give me a concept and say, “Hey, Angle, I'm building ABC.” No. I needed you to design it, build it and deploy it. That will continually be one of the things I'm most proud of.

IM: Why is building so important to you?

AB: I've been saying that from the beginning because I tell people all the time: I can talk all day. We can have this conversation all day. But at the end of the day, are we building? What is the result?

Conversation is great. It can provide insight. But we have to put our hands on products. We have to put our hands on the APIs. We have to put our hands on that knowledge and ask, What do we do with it?

After you learn it, what are you doing with it? Are you going to create an app that helps your family? Are you creating an app that allows you to be part of the AI economy in a way that you can control? We're all going to be part of the AI economy at some point based on our careers and everything else. But what part of it can you control?

IM: What's next for Black Women in Artificial Intelligence?

AB: I want to continue our mission to educate, engage, embrace and empower Black women in AI. I want our organization to serve as an opportunity for women to build. How do we build? How do we understand how to build? How do we move beyond how we've been conditioned and start asking questions—not only of ourselves, but also the right questions of corporations?

Long term, I want us to continue building, and then I want us to pass that knowledge and insight down to the next generation. But I also want us to reach back to generations that may not have had this opportunity when they were younger. Maybe they were discouraged from going into STEM when they were younger. I want them to know that you can still build. It doesn't matter what your age is. It doesn't matter what college or university you attended. If you have an idea, we want to democratize AI so that you can build.

IM: BWIAI's story began in Houston. What role do you think Houston can play in the AI boom?

AB: First, I absolutely love Houston. I'm originally from Chicago and was raised in Saginaw, Michigan. But as they say, I got to Houston as quickly as I could. I think Houston has a great opportunity to position itself as a center of excellence for innovation. We have an entrepreneurial spirit and drive that I believe is unmatched.

And as much as we have entrepreneurs, we also have advocates who want to see the ethical use of AI. I think we'll see a rise in entrepreneurship. Houston is already building that ecosystem with the Ion and other entities coming into the fold.

As far as the mark Black Women in Artificial Intelligence will make in Houston, I think we'll bring a different perspective to the city's AI ecosystem. We'll make an impact on the entrepreneurial side, but also on the advocacy side when it comes to the responsible and ethical use of AI, which isn't always talked about.

IM: One of the biggest concerns surrounding AI is its potential to displace workers faster than people can acquire new skills. How should we be thinking about that?

AB: In full transparency, that's a tough question to answer because AI is moving so quickly. There are so many different models and so many different things happening that it can appear as though they're coming out of thin air.

For me, it's a matter of how we work with individuals so they can think more about the system than the model, because the models can retire. The impact this is going to have on communities globally is going to be an interesting dynamic. With the work we're doing at Black Women in Artificial Intelligence, this is our mitigation system: How can we bring individuals along so they can learn artificial intelligence and understand that there is a pivot—and it's not coming. It's happening right now, live.

How can we create an ecosystem where individuals get the training, support and understanding they need? For me, that's how we mitigate it: by creating a space where individuals can learn how to pivot.

IM: If readers take one thing away from this conversation, what do you want it to be?

AB: How important it is to be in the lab. It is important to start building today—not tomorrow, not next week, not next month. We have to be in the lab today. That's it.

This interview has been edited for brevity and clarity.

UTMB launches new department for space medicine, names inaugural leader

department launch

In space, no one can hear you scream—but they can hear you discuss your medical history and recent symptoms.

The University of Texas Medical Branch (UTMB) announced last month that it would form a new Department of Aerospace and Exploration Medicine within its School of Public and Population Health under the leadership of Dr. Ronak V. Shah, who will serve as inaugural chair.

“Human exploration is changing rapidly, and the health challenges associated with distance, isolation, and limited resources are changing along with it,” Shah said in a news release. “Creating the Department of Aerospace and Exploration Medicine gives us an opportunity to build on decades of expertise at UTMB as we prepare for the future.”

The new department elevates UTMB’s existing Aerospace Medicine Division and provides "broader academic structure for expanding research, education, and collaboration across disciplines," according to the release. Shah was previously named director of the division in 2022 after serving as medical director of Johnson Space Center.

Space exploration in particular has a wide variety of highly specific medical side effects that are in need of the formalized study that the department will specialize in. For example, zero- and low-gravity environments cause everything from detached fingernails to flattened eyeballs. Even in modern, high-tech spacecraft, the human body feels the impacts of space.

It’s an area of medicine UTMB is uniquely suited for. Starting in the 1950s with NASA’s director of medical research Dr. Charles A. Berry, UTMB partnered with the blossoming era of exploration by monitoring astronauts. In 1993, UTMB and the NASA Johnson Space Center created the joint Aerospace Medicine Residency Program, which used bed facilities at the Galveston branch to simulate weightlessness. Wherever there has been a question about how flight and space affect health, odds are UTMB has been involved.

The Department of Aerospace and Exploration Medicine will launch several new initiatives soon. One planned for 2027 is an Undersea and Hyperbaric Medicine Fellowship that will allow scientists to study the physiology of high-pressure flight.

“In the era of a growing global space economy, we are revisiting questions such as who is flying, what is their destination, what vehicle will get them there?” Shah added in the release. “The answers to these questions will drive what research is needed and how we train the next generation.”

Energy AI company opens first U.S. office at Houston's the Ion

new to hou

Building on its partnership with Houston-based oilfield services provider Halliburton, energy-sector AI company Shape Digital recently opened an office at The Ion. It’s the company’s first U.S. location.

Shape Digital’s workforce in Houston includes employees specializing in tech support, business development and client services. The company’s local hiring projections and headcount weren’t available. The new office will be located within Industrious at the Ion, according to Rice Alliance.

A key driver of the new Houston office: The company forecasts North America will account for more than 20 percent of its business in 2027.

“North America is a critical market for industrial innovation, and Houston sits at the center of companies driving that progress,” Caio Sene, vice president of client services at Shape Digital, said in a release. “Growing our presence here allows us to work alongside operators as they look for practical ways to turn existing operational data into clear recommendations for what to do next.”

Shape Digital, which also has offices in Singapore and Brazil, develops decision-making platforms for the oil and gas sector.

The Ion District office gives Shape Digital a presence close to Halliburton’s headquarters. In May, the two companies forged a partnership to combine Halliburton’s Digital Field Solverdecision-making system with Shape Digital’s AI portfolio.

Shape Digital layers AI software atop existing operations data rather than replacing legacy systems or adding new software.

The company’s suite of AI agents draws on more than 200 operations-monitoring algorithms, continually learning from company and industry data. The suite comprises four products: Shape Aura, Shape Lighthouse, Shape Lumen and Shape Reef.

Shape Digital says that by working with a customer’s existing operations data, it can deliver ROI in less than two months without any additional investment in equipment or infrastructure.

The company is a 2021 spinoff of Japan-based Modec. Modec builds, owns, and operates floating offshore oil and gas production facilities. Its Modec America subsidiary is based in Houston.

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