Ursa Major's $2.3 Billion SPAC Shows What Propulsion Verticality Is Actually Worth

A defence propulsion startup with $18.5 million in 2024 revenue is heading to Nasdaq at a $2.3 billion post-transaction valuation. That gap between current revenue and headline number tells you almost everything about where defence capital is flowing right now, and what it is pricing in.

On August 25, 2026, Ursa Major, a Colorado-based defence startup specialising in hypersonics and solid rocket motors, announced plans to go public through a merger with Bleichroeder Acquisition Corp. III, a special purpose acquisition company backed by Inflection Point Asset Management 2 sources. The transaction is expected to close in the first quarter of 2027 spacenews.com.

The structure matters. The deal implies a pre-money equity valuation of roughly $1.6 billion and a post-transaction equity valuation of about $2.3 billion, and includes at least $350 million in private investment in public equity (PIPE) led by Inflection Point 2 sources. That PIPE is the real signal: institutional investors chose to write a large cheque into a company that is still pre-profit and still scaling, because they see the production ramp, not the current revenue line, as the asset.

What Ursa Major Actually Built

Founded in 2015 and based in Berthoud, Colorado, Ursa Major builds rocket engines, hypersonic systems and solid rocket motors for space exploration and national defence aviationweek.com. The strategic pivot is important. The deal marks another step in the company's transition from a supplier of liquid rocket engines for commercial launch vehicles into a defence manufacturer of missiles and munitions, markets where the Pentagon is pushing suppliers to increase production and bring new sources into a strained missile industry breakingdefense.com.

That pivot is now embedded across the product line. Ursa describes itself as principally focused on three businesses: hypersonics, solid rocket motors and space propulsion spacenews.com. The hypersonics flagship is HAVOC, unveiled in February 2026: a complete hypersonic capability designed to deliver high-speed, affordable mass at scale, engineered for rapid production and scalability 2 sources. Ursa Major plans to manufacture HAVOC mostly in-house and could build it for around $3 million per unit breakingdefense.com. That price point matters because legacy hypersonic missiles have frequently cost tens of millions per unit breakingdefense.com.

On the solid rocket motor side, the company is advancing the U.S. Navy's MK 104 design through critical design review and static fire under a $10 million contract award 2 sources. The flight record is real: Ursa Major has conducted more than 5,500 ground tests and 140,000 seconds of testing, and its engines have powered more than a dozen successful hypersonic missions prnewswire.com.

The Revenue Ramp the Market Is Pricing

The SPAC filing puts 2024 revenue at approximately $18.5 million and 2025 revenue at $45 million, with management projecting roughly $100 million for 2026 and a $200 million revenue opportunity for 2027, though the company cautioned that those projections depend on assumptions about future contract awards, production schedules and government spending 2 sources.

Ursa Major acknowledges it is not yet profitable and will need considerable capital to build the manufacturing infrastructure envisioned for HAVOC and its solid rocket motor operations. CEO Chris Spagnoletti has stated that the company currently has capacity to produce about eight HAVOC missiles annually and is targeting production of more than 500 a year by 2030 breakingdefense.com.

Eight to 500 in four years. That is the production bet investors are making, and it is a bet specifically on whether vertical integration and modern manufacturing can break the unit-cost ceiling that has plagued US hypersonic programmes for a decade. Affordability is being pursued through advanced additive manufacturing, innovative design and modern production processes ursamajor.com.

Since its founding, Ursa Major has raised more than $380 million in private capital while also receiving Defence Department investment to develop solid rocket motors, space systems and hypersonics 2 sources. The SPAC does not just add capital. As a publicly traded munitions company, the public listing provides a currency for acquisitions and a cleaner contracting posture with government customers who increasingly want to see a stable, auditable counterparty 2 sources.

Why a SPAC, Not an IPO

The SPAC structure lets Ursa Major negotiate valuation directly with PIPE investors rather than running the price-discovery gauntlet of a traditional roadshow bnnbloomberg.ca. In a market where defence tech revenue multiples are high but lumpy (contract timing is unpredictable, qualification milestones slip), that certainty has real value. The deal comes as defence technology startups attract growing investor interest amid heightened geopolitical tensions and increasing demand for cheaper weapons that can be produced quickly, including drones, autonomous systems and the rockets and missiles used to counter them bnnbloomberg.ca.

Ursa Major is not alone in choosing the public route right now. The same week saw Lyntris, a Virginia-based defence sensing company, list on the NYSE, raising roughly $300 million in a downsized IPO, as global instability continues to push the IPO window open for defence companies bnnbloomberg.ca.

The European Propulsion Gap This Exposes

Europe has active propulsion programmes, but nothing structured like Ursa Major. The closest analogue in the European startup space is the hypersonics interceptor track. The EU-funded Hydis project settled on a concept based on a solid-propellant rocket motor, with MBDA as the leading integrator 2 sources. Avio worked on the architecture of the solid rocket motor propulsion, with ArianeGroup and MBDA's Roxel on the final interceptor stage control defensenews.com. That is a prime-led, government-funded consortium, not a venture-backed company building across the full stack.

Among European startups, Hypersonica raised €23.3 million in early 2026 to develop hypersonic missiles, but that sum is modest compared to other hypersonic efforts: Castelion in the US raised a $350 million Series B in December 2025, and Destinus in the Netherlands, working on hypersonic aircraft, has raised over $400 million and is valued at more than $1.7 billion resiliencemedia.co.

On launch propulsion, German startup HyImpulse raised 45 million euros ($53 million) as it works to compete in the European space launch market spacenews.com, and French startup HyPrSpace received €21 million in Series A funding to develop its hybrid rocket technology for launch and defence applications borntoengineer.com. Both are hybrid propulsion plays focused on launch, not the propulsion-to-munitions vertical that Ursa Major has built.

The pattern is clear: Europe has propulsion component specialists and launch-focused hybrids, but no venture-scale company that spans solid rocket motors, liquid hypersonic engines and complete missile systems under one roof, with flight heritage, government contracts and a credible production roadmap.

For Founders

The valuation logic. Ursa Major's revenue multiple only makes sense if you read it correctly. Investors are not paying 50x 2025 revenue for $45 million in current sales. They are pricing in production infrastructure, the qualification record and the contracted revenue pipeline that follows programme awards 2 sources. For European propulsion or munitions founders, this means the valuation conversation with investors must be grounded in production capacity and contract optionality, not just technology demonstrations.

Vertical integration as a moat. The $3 million HAVOC target cost is only achievable because Ursa Major manufactures propulsion, avionics and the complete missile round internally, using additive manufacturing and modern production processes 2 sources. European founders in propulsion who are still positioning as component suppliers to primes should model what it would cost to own more of the stack, and what contracts become accessible when they do.

The SPAC as a structured raise. European defence founders often treat liquidity as a distant event. The Ursa Major structure is a reminder that a SPAC can function as a structured Series D: it brings capital certainty, a PIPE anchor and a known closing timeline 2 sources. As European public markets for defence tech mature, this mechanism will become available to European founders earlier than most expect. Understanding its mechanics now, not six months before you need it, is worth the time.

The solid rocket motor bottleneck is a market. The same solid rocket motor supply chain bottlenecks that prompted the US Navy to award Ursa Major a $10 million development contract 2 sources are visible in Europe. Every European counter-drone, interceptor and cruise missile programme is competing for the same constrained pool of solid propellant and motors. A venture that solves part of that supply chain problem, even at component level, has a short path to government revenue.

Production, not prototypes. The single most consistent message in the Ursa Major filing, the PIPE terms and the CEO's public statements is this: what investors are buying is manufacturing capacity and unit economics at scale, not engineering novelty 3 sources. European defence founders should stress-test every pitch deck against one question: what is your path from prototype to 500 units a year, and what does the unit cost curve look like when you get there?