Defense and space companies are increasingly turning to SPACs (Special Purpose Acquisition Companies) to enter the public markets as investor interest in national security, space technology, drones, satellites and advanced defense systems continues to grow.
The trend has become particularly visible in 2026. Early-stage companies that may not yet have the stable revenue, profits or predictable business cycles normally expected in a traditional IPO are finding SPAC mergers a more flexible way to raise capital and become publicly traded.
According to Reuters, six defense, space or satellite-related companies have announced SPAC mergers so far in 2026, representing about 10% of all SPAC deals. That compares with only three such deals during all of 2025. At least seven other companies in the broader defense and space sector have also gone public through traditional IPOs this year.
The growing activity shows that defense and space are becoming important areas of interest for public-market investors.
What Is a SPAC?
A SPAC, or Special Purpose Acquisition Company, is a company created mainly to raise money through an IPO and later merge with a private company.
The process is different from a traditional IPO.
In a normal IPO, a private company works with investment banks, prepares its financial disclosures and sells shares directly to public investors.
In a SPAC transaction, an already-listed SPAC searches for a private company to acquire or merge with. After the transaction is completed, the private company effectively becomes a publicly traded business.
This structure can give companies more flexibility when deciding their valuation, financing requirements and timing.
For early-stage defense and space companies, that flexibility can be particularly useful because their businesses are often based on long-term government contracts, research programs and technology development rather than predictable quarterly revenue.
Why Are Defense and Space Companies Choosing SPACs?
There are several reasons behind the growing interest.
1. Faster Access to Public Capital
Defense and space companies often require significant amounts of capital to develop rockets, satellites, propulsion systems, drones, autonomous aircraft and other advanced technologies.
A SPAC merger can provide access to public-market capital without relying entirely on the traditional IPO process.
This can be important when a company needs funding quickly to increase production or meet customer demand.
2. More Flexible Valuation
One major difference between a traditional IPO and a SPAC merger is how valuation is negotiated.
In a SPAC transaction, the private company and SPAC can negotiate the valuation before the company becomes public.
This can give early-stage businesses greater flexibility, particularly when their future growth potential is more important than their current revenue.
However, this does not mean the valuation is automatically attractive for investors. Investors still need to examine the company’s contracts, cash position, technology, competition and future funding requirements.
3. Defense Companies Have Unusual Business Cycles
Defense companies often depend heavily on government contracts.
A company can spend years developing a technology before receiving a major contract. Government procurement decisions can also change the timing of revenue.
That makes it difficult for some young defense companies to present the consistent financial history investors normally expect from a traditional IPO.
A SPAC can provide a different route to the public market.
Reuters quoted IPOX Vice President Kat Liu as saying that SPAC mergers can offer a more flexible route for companies with government contracts, strategic backing or a clear growth pipeline that have not yet reached the revenue, margin or predictability normally expected for an IPO.
Ursa Major Becomes a Major Example
One of the most important examples of the current trend is Ursa Major, a U.S. defense technology company developing propulsion systems for missiles and rockets.
The company agreed to a $2.3 billion SPAC transaction in August 2026. The deal highlights why some defense companies prefer the SPAC route.
Ursa Major has said customer demand is exceeding the industry’s available supply. The company plans to use public-market capital to increase domestic production capacity.
The company’s management also argued that a traditional IPO could have forced the company to wait for a favorable IPO market window instead of expanding production when its customers need additional capacity.
This is an important difference.
For a fast-growing defense company, the timing of customer demand may be more important than the timing of the stock market.
Space Sector Is Also Attracting Investors
The SPAC trend is not limited to defense.
Space companies are also attracting significant investor interest because of growing government and private-sector spending on:
- Satellites
- Satellite communications
- Space transportation
- Orbital infrastructure
- Space-based data
- Defense satellites
- Autonomous spacecraft
The successful public-market performance and growing visibility of space companies have helped increase investor attention toward the sector.
The broader space market has also received a boost from major developments involving large private space companies and increasing government demand for satellite-based capabilities.
Sierra Space Shows the Private-Market Interest
Investor appetite can also be seen before companies reach the public market.
Sierra Space, a major private space company, saw its valuation rise by more than 50% over three years to around $8 billion during its March 2026 funding round.
This suggests that investors are not only interested in publicly traded defense and space companies but are also willing to put substantial capital into private businesses in the sector.
For companies considering a future IPO or SPAC transaction, strong private-market valuations can provide an important reference point.
Quantum Space and Elroy Air Join the SPAC Trend
Two other companies highlighted in the 2026 SPAC activity are Quantum Space and Elroy Air.
Quantum Space
Quantum Space is developing spacecraft designed for:
- Orbital mobility
- Satellite servicing
- Space logistics
- Refueling and maintenance
The company has more than $88 million in government contracts, according to the Reuters report.
Its business model reflects a broader shift in the space industry from simply launching satellites toward building an infrastructure ecosystem around satellites in orbit.
Elroy Air
Elroy Air is developing autonomous hybrid-electric aircraft.
The company has secured a multi-year $46 million U.S. Army contract to develop an autonomous hybrid-electric aerial system.
This shows how defense demand is increasingly moving toward autonomous and unmanned systems.
Drones and autonomous aircraft can potentially reduce costs and provide new capabilities for logistics, surveillance and military operations.
Why Defense Spending Is Supporting the Sector
The rise in defense and space investment is also connected to geopolitical developments.
Governments are increasing spending on:
- Drones
- Missile systems
- Satellite networks
- Autonomous systems
- Cybersecurity
- Space infrastructure
- Advanced propulsion
- Counter-drone technology
The Reuters report highlighted a proposed $1.5 trillion U.S. defense budget for 2027, compared with a $901 billion defense budget enacted for 2026.
If higher spending becomes reality, it could create additional opportunities for smaller defense technology companies.
For startups, even a single major government contract can significantly change their growth prospects.
Changing Nature of Warfare Is Creating New Opportunities
Another important factor is the changing nature of warfare.
Drones and relatively low-cost autonomous systems have become increasingly important in modern conflicts.
This creates opportunities for startups that can develop:
- Low-cost drones
- Counter-drone systems
- Autonomous aircraft
- AI-powered defense systems
- Advanced sensors
- Satellite technologies
- Precision propulsion systems
Traditional defense contractors have historically dominated government procurement.
But newer companies are attempting to compete by developing smaller, cheaper and more technologically advanced systems.
This is one reason investors are paying closer attention to the defense technology startup ecosystem.
Nine SPACs Are Currently Looking for Defense or Space Targets
The trend could continue.
According to SPACInsider data cited by Reuters, nine SPACs are currently searching for companies in the defense or space sectors, with approximately $2.35 billion held in trust.
That means additional transactions could emerge in the coming months if these SPACs successfully identify suitable targets.
This is important because the current six announced deals may not represent the full 2026 activity.
There is already capital available specifically for potential future transactions.
Why Investors Are Interested
Investor interest in defense and space companies is being driven by several themes.
National Security: Governments are increasingly treating defense technology as a strategic priority.
Government Spending: Higher defense budgets can create long-term demand for new technologies.
Space Economy: Satellite communication, space infrastructure and orbital services are expanding beyond traditional government programs.
AI and Autonomy: AI is becoming increasingly important in drones, surveillance, logistics and autonomous systems.
Supply Chain Security: Governments are looking for domestic sources of critical defense technologies and materials.
Together, these factors create a strong investment narrative around the sector.
But SPAC Deals Also Carry Significant Risks
The rise in SPAC activity does not mean every defense or space company will become successful.
Investors should be aware of several risks.
1. Shareholder Dilution
SPAC transactions can result in significant dilution for existing shareholders.
This can become particularly important when the transaction includes additional private investment known as PIPE financing.
If a company needs repeated capital raises after becoming public, existing shareholders could face further dilution.
2. Government Contract Risk
Many defense companies depend heavily on government customers.
A delayed contract can affect revenue and cash flow.
A cancelled or reduced contract can have an even bigger impact on a small company.
Therefore, investors should not look only at the headline contract value. They should examine whether the contract is funded, how long it lasts and what percentage of the company’s expected revenue it represents.
3. Technology Risk
Space and defense technologies are difficult to develop.
Rocket propulsion, satellites, autonomous aircraft and advanced defense systems require substantial research and testing.
A technical failure can result in:
- Delays
- Higher costs
- Lost contracts
- Additional capital requirements
4. SPAC Performance Can Be Volatile
Some high-profile space companies that previously went public through SPAC mergers have experienced significant share-price volatility.
Reuters noted that companies such as Rocket Lab, Intuitive Machines and AST SpaceMobile have traded below recent highs, although their longer-term performance presents a more positive picture.
This demonstrates why investors should not treat a SPAC merger itself as proof of future success.
SPAC vs Traditional IPO
| Factor | Traditional IPO | SPAC Merger |
| Route to public market | Direct IPO | Merger with SPAC |
| Valuation | Determined through IPO process | Privately negotiated |
| Timing | Depends heavily on market conditions | Can provide more flexibility |
| Early-stage companies | Can be difficult | Often more suitable |
| Revenue requirements | Investors generally expect stronger financial history | Can accommodate earlier-stage businesses |
| Capital raising | IPO proceeds | SPAC capital + potential PIPE |
| Main risk | IPO market conditions | Dilution and execution risk |
The key point is that SPACs provide flexibility, but they do not remove business risk.
What This Means for Investors
The growing number of defense and space SPAC deals could create new investment opportunities, but investors should look beyond the headline valuation.
Before investing in a newly listed defense or space company, investors should examine:
- Government contracts
- Backlog and funded backlog
- Revenue growth
- Cash position
- Cash burn
- Existing debt
- Share dilution
- PIPE financing
- Technology maturity
- Customer concentration
- Production capacity
- Future capital requirements
A company with a large contract announcement may still need significant additional funding before it becomes profitable.
Is This the Start of a New Defense IPO Cycle?
The current trend appears more significant than a simple temporary SPAC revival. There are several forces working together.
First, governments are increasing spending on national security.
Second, modern warfare is creating demand for drones, autonomous systems, satellites and advanced technologies.
Third, investors are searching for new growth industries.
Fourth, space is becoming increasingly commercial rather than being limited to government agencies.
And finally, SPACs provide early-stage companies with an alternative route to public markets.
However, investors should remain selective.
The defense and space sectors contain both highly promising companies and businesses that may struggle to turn technological potential into sustainable revenue.
Therefore, the next phase of this market will likely depend not just on how many companies go public, but on whether those companies can convert government contracts and technology into real revenue, production capacity and long-term profits.
Conclusion
Defense and space companies are becoming an increasingly important part of the 2026 SPAC market.
Six defense, space or satellite-related companies have already announced SPAC mergers this year, compared with three during all of 2025. At the same time, several other companies have chosen traditional IPOs, showing that investor demand for the sector is broader than the SPAC market alone.
Companies such as Ursa Major, Quantum Space and Elroy Air demonstrate the range of businesses attracting capital—from missile and rocket propulsion to orbital infrastructure and autonomous aircraft.
With nine SPACs currently searching for defense or space targets and billions of dollars sitting in SPAC trusts, additional transactions could emerge.
The opportunity is significant, but so are the risks.
For investors, the most important question is not simply which defense or space company is going public, but whether that company has the technology, contracts, capital and execution capability to build a sustainable business after becoming public.
Source: Reuters, SPACInsider and company disclosures
