Ursa Major
@ursamajortech
Powering the Future of Defense and Aerospace. We develop advanced propulsion systems across space, hypersonics and national security domains.
We fired up the grill at our Berthoud, CO campus for a company-wide Summer Cook-Out that was made complete with a limited edition brew from our friends at City Star Brewing. At Ursa Major, we take pride in supporting local Northern Colorado businesses and celebrating the small…




The best defense tech companies are mission-driven and devoted to solving a complex security challenge, rather than focused on building tech that they can retrofit to government needs. Veterans like Ben Nicholson and the team at Ursa Major prove that mission-first strategy,…



Christopher Spagnoletti, President, Liquid Systems at Ursa Major joined a fireside chat at Spacetide 2025 alongside Kazuto Suzuki, Director, Institute of Geoeconomics at International House of Japan to and moderator Kevin O’Connell, Founder and CEO, Space Economy Rising to speak…


For the second time, Ursa Major has successfully fired our 10” solid rocket motor with highly loaded grain showing repeatable results with rapid iteration, as seen in the motor start up. On the topic, Bill Murray, Vice President of Product and Engineering for Solid Missiles…
Ursa Major was proud to sponsor the AFA Mile High Charity Golf Tournament, an event that raises funds for impactful initiatives like the Wounded Airmen & Guardians Program. It was a great day on the course in Colorado, bringing together industry and community to support the AFA’s…




🎬 We’re not just building hardware, we’re solving hard problems and testing in real-world environments. When you scan the QR code on our DC Metro ads, this is what you’ll find — Ursa Major CEO Dan Jablonsky revealing how we’re accelerating defense capabilities with…
Another historic static-fire test! Our largest solid rocket motor test to date, using highly-loaded grain, went full duration and met all test and performance objectives. In partnership with the U.S. Navy, we have successfully static-fired a 10” diameter HLG motor that was…
Ursa Major and Innovative Space Carrier held a ceremonial signing at the U.S. Embassy in Tokyo, celebrating our engine delivery agreement, the first of its kind under a groundbreaking U.S. export license for liquid rocket propulsion. While the contract was executed earlier this…


The 🇺🇸🇯🇵 partnership is reaching for the stars! Today’s agreement between @ursamajortech and @i_space_carrier’s @SiriusTechSpace for 10 🇺🇸 Hadley engines and to collaborate on reusable, medium-lift propulsion technology represents the future of space exploration. The expertise…
From beyond the atmosphere to underground, Ursa Major has taken over the Pentagon Metro Station. If you’re passing through Pentagon Station or riding the rails anywhere across the National Capital Region, you won’t miss our latest ad campaign, Fly Faster, now live in the heart…




At the @parisairshow, Ursa Major joined industry leaders to discuss one of the most pressing defense challenges: rapidly rebuilding the U.S. solid rocket motor supply chain. Representing the company, Chief Business Officer Ben Nicholson spoke on a media panel alongside RTX,…



Dan Jablonsky joined @FlightGlobal to speak about how Ursa Major is breaking barriers on hypersonic flight, SRM scalability, and our storable liquid rocket engine with throttle control & extended ranges, Draper. “We developed three whole new rocket engine systems on the liquid…
Ursa Major has secured a $32.9M contract to deliver 16 upgraded Hadley H13 engines to Stratolaunch. We’re advancing hypersonic test infrastructure and accelerating mission-ready capabilities. We’re ready to continue to push boundaries on reusable, high-performance,…
Ursa Major has officially launched our Washington, DC office! Last week, we welcomed 100+ guests to celebrate our Grand Opening. This new office marks a major step forward as we expand our presence in aerospace and defense, in the place where policy and innovation intersect.…




Ready to take your career to the next level and be on the front lines of innovation? At Ursa Major, we’re building real, tactical hardware that powers the future of aerospace and defense tech and we’re looking for top-tier talent to help lead the charge. Explore roles in…

From design to hotfire testing with a clear path forward to hypersonic flight. Draper's storable, reusable, throttleable, and mission flexible liquid rocket engine is built for hypersonic and counter-hypersonic missions at a fraction of the cost. Powered by the technology…

We are carrying the momentum from a hot week into a hot month and building toward even more! 📃 AFRL Contract for Draper 🚀 Hadley flew on @Stratolaunch’s Talon-2 🔥 Hotfire testing continued Stay tuned as we continue to power the future of aerospace and defense.…
We’re excited to welcome Colonel Wes Adams, USAF, to our Ursa Major DC office through the DoD SkillBridge Program! Col. Adams is a distinguished Air Force officer with over two decades of operational excellence and deep expertise in aircraft maintenance and logistics, focused on…

On this Memorial Day, we honor the brave men and women who gave their lives in service to our nation. Their courage, sacrifice, and commitment to protecting our freedom will never be forgotten. At Ursa Major, we honor their legacy by supporting those who serve, advancing…
