Aerospace and Defense Private Equity for $5M+ LP Investors

What Makes Aerospace and Defense Private Equity Different

Aerospace and defense private equity sits in a category most generalist PE investors never touch. The regulatory barriers are real, the government contract structures are unlike anything in commercial markets, and the minimum LP commitments at leading funds start at $5 million. For investors who qualify, the asset class offers genuine portfolio diversification with historically low correlation to public equities.

The DoD's FY2025 budget request exceeded $849 billion, one of the largest peacetime defense appropriations in U.S. history, according to the Department of Defense Budget Overview. That sustained government spending creates a demand floor that commercial sectors simply cannot replicate. Multi-year, often cost-plus contracts mean revenue visibility stretches years into the future, which compresses the volatility profile relative to cyclical buyout targets.

This is not a sector where standard 60/40 guidance or generalist PE fund selection criteria apply. The due diligence framework, the regulatory compliance costs, the tax structure, and the liquidity timeline all require a different analytical lens.

What Are the Top Aerospace and Defense Private Equity Firms?

The field splits cleanly into specialists and generalists. Each brings a different edge, and the choice matters for LP investors evaluating access and alignment.

Sector specialists have built institutional knowledge that generalists cannot easily replicate. Veritas Capital focuses almost exclusively on government-facing businesses, with a portfolio spanning defense IT, aerospace services, and national security technology. AE Industrial Partners concentrates on aerospace, defense, and power generation, with operational depth in MRO and propulsion. These firms bring former military and government officials onto their teams, which translates directly into sourcing advantages and regulatory navigation.

Generalist powerhouses including Carlyle Group and KKR have dedicated aerospace and defense practices within broader industrial verticals. Their advantage is balance sheet scale and cross-sector deal flow, though their defense-specific expertise is typically thinner than the specialists.

The table below summarizes key characteristics relevant to LP investors evaluating fund access.

LP minimums reflect institutional access thresholds per SEC Form D filings and fund documentation. Individual access may require a family office aggregator or fund-of-funds vehicle, which adds a fee layer.

For investors approaching this through a family office, co-investment rights are often available alongside fund commitments, typically requiring an additional $1 to $5 million per deal. Co-investments bypass the management fee and carried interest on that capital, which improves net returns meaningfully over a full fund cycle.

How Do Private Equity Firms Invest in the Defense Sector?

The mechanics differ from standard buyout investing in several important ways. Understanding the structure helps LPs evaluate whether a given fund's approach matches their return expectations and risk tolerance.

Most aerospace and defense PE transactions are control buyouts of mid-market suppliers, service providers, and technology companies that sit below the prime contractor tier. Primes like Lockheed Martin and Raytheon rarely sell divisions outright, but the supply chain beneath them is fragmented and PE-accessible. A typical target might be a $200 to $800 million revenue business with 15 to 25% EBITDA margins, a multi-year government contract backlog, and a defensible niche in a specific platform or technology.

Platform investment approaches are common in this sector. A PE firm acquires a core business with established government relationships, then adds smaller bolt-on acquisitions to expand capability and contract coverage. This strategy works particularly well in defense electronics, MRO services, and cybersecurity, where customer concentration risk can be reduced by broadening the platform's addressable contract base.

Direct investment strategies at the deal level, rather than through a fund, are available to larger family offices with existing relationships at specialist firms. The economics are better, but the sourcing and diligence burden falls on the investor.

Debt structures in defense PE tend to be more conservative than in commercial buyouts. Lenders recognize the contract-backed revenue stability and will extend credit, but the regulatory complexity and security clearance requirements on assets create complications that limit leverage multiples relative to, say, software buyouts.

What Returns Do Aerospace and Defense Private Equity Funds Generate?

According to Preqin's 2024 Global Private Equity report, buyout funds focused on industrials and aerospace/defense have historically delivered median net IRRs in the 15 to 20% range over ten-year vintages. The dispersion between top- and bottom-quartile managers is wide, which makes manager selection the dominant variable.

The table below compares aerospace and defense PE against other private market asset classes on key return and risk dimensions.

Sources: Preqin 2024, PitchBook Aerospace & Defense PE Report 2024. Past performance does not guarantee future results.

The low public market correlation is the structural argument for including defense PE in a diversified portfolio. Defense revenues are largely non-cyclical because multi-year government contracts insulate portfolio companies from economic downturns that would compress margins in commercial businesses. This characteristic makes the asset class a genuine diversifier for portfolios already weighted toward public equities, not simply a leveraged bet on economic growth.

That said, the J-curve effect is pronounced here. CFIUS reviews alone can add 6 to 12 months to deal close, meaning capital is called and management fees accrue well before any value creation is realized. Distributions typically do not begin until years 5 to 7 of a 10-year fund. Investors should model a negative IRR on paper for the first two to three years as normal, not as a signal of underperformance.

What Is the Minimum Investment to Access Aerospace Defense PE Funds as an LP?

LP minimums at leading aerospace and defense-focused funds typically range from $5 million to $25 million for institutional limited partners. Most individual investors, even those with $10 to $20 million in net worth, will find direct LP access difficult without an established relationship with the fund or a family office that has existing allocations.

For investors below the direct access threshold, two paths exist. First, fund-of-funds vehicles aggregate smaller commitments and provide access to multiple defense PE managers, but they add a second layer of fees (typically 0.5 to 1% management fee and 5 to 10% carry on top of the underlying fund's 2 and 20). Second, some registered investment advisors and multi-family offices have negotiated access to institutional share classes that allow smaller commitments from their client base.

Late-stage private equity investments in defense-adjacent companies occasionally surface through secondary markets, where existing LPs sell their fund interests before the fund matures. Secondary purchases can reduce J-curve exposure because the buyer acquires a seasoned portfolio at a discount to NAV, with distributions potentially beginning sooner. Pricing in the secondary market for defense PE interests has historically been competitive, often at 85 to 95 cents on the dollar, reflecting the asset class's perceived stability.

Preferred equity structures are another entry point for investors who want downside protection. Some defense-focused growth companies raise preferred rounds that offer a fixed return floor with equity upside, though these are more common in venture-stage defense tech than in traditional PE buyouts.

The minimum investment question connects directly to portfolio sizing. A $5 million commitment to a single defense PE fund represents a meaningful illiquidity event. Investors should ensure they maintain sufficient liquid reserves before committing.

How Does CFIUS Review Affect Aerospace and Defense Private Equity Deals?

The Committee on Foreign Investment in the United States (CFIUS) is the regulatory reality that separates defense PE from every other sector. Under the Foreign Investment Risk Review Modernization Act (FIRRMA) of 2018, mandatory CFIUS filings are required when a PE acquirer targets a TID U.S. business, meaning one involved in critical technology, critical infrastructure, or sensitive personal data.

Most meaningful aerospace and defense targets qualify as TID businesses. That means mandatory filing, a formal review process, and the possibility of mitigation agreements or outright deal prohibition. According to the CFIUS Annual Report to Congress (2023), reviews of transactions involving defense and critical technology businesses have increased substantially since FIRRMA took effect.

The compliance checklist below outlines what PE acquirers and their LPs should expect.

Estimates reflect typical ranges for mid-market defense transactions. Complex deals involving classified programs can exceed these figures significantly.

The practical implication for LPs is that deal economics must absorb these costs. A $300 million acquisition carrying $1 million in CFIUS compliance costs is manageable. A $50 million deal with the same compliance burden faces a materially different math. This is one reason why defense PE tends to concentrate in mid-market and larger transactions rather than small-cap buyouts.

CFIUS also creates a structural advantage for domestic PE buyers. Foreign capital is effectively excluded from acquiring sensitive defense assets, which limits the buyer pool and can support premium valuations for U.S.-based PE firms acquiring from motivated sellers.

Which Subsectors Offer the Best Risk-Adjusted Returns?

Not all aerospace and defense PE is created equal. McKinsey's 2024 Aerospace and Defense Industry Outlook identifies defense electronics, MRO services, and space infrastructure as the highest-growth subsectors, with compounding demand driven by NATO spending commitments and commercial space expansion.

Breaking that down for investment purposes:

Defense electronics and C4ISR (command, control, communications, computers, intelligence, surveillance, and reconnaissance) benefit from both legacy platform sustainment and next-generation system development. Revenue is sticky because switching costs are high and program lifetimes span decades. Margin profiles are attractive, with EBITDA margins often in the 18 to 28% range for software-intensive businesses.

MRO services (maintenance, repair, and overhaul) are the annuity businesses of the defense supply chain. As long as aircraft fly, MRO demand persists. The risk is labor-intensive operations with thinner margins (typically 10 to 16% EBITDA), but the contract visibility and low capital intensity make these attractive platform acquisition targets.

Space infrastructure is the highest-growth and highest-risk subsector. Commercial satellite constellations, launch services, and ground systems are attracting significant capital, but the technology risk and long development timelines make this more venture-like than traditional PE. Aerospace sector investment opportunities in commercial space require a longer time horizon and higher risk tolerance than defense-focused buyouts.

Cybersecurity and government IT sit at the intersection of defense and technology. These businesses often carry software-like margins with government contract stability. Veritas Capital has built much of its portfolio around this subsector, and the returns have reflected the premium.

Deloitte's 2024 Global Aerospace and Defense Industry Outlook flags supply chain fragmentation and workforce shortages as the primary operational risks across all subsectors. Both factors compress EBITDA margins and can affect exit valuations if not addressed during the hold period.

What Allocation Percentage Should Ultra-High-Net-Worth Investors Put Toward Defense PE?

There is no universal answer, but a framework exists. Defense PE's low correlation to public equities makes it a genuine diversifier, and the illiquidity premium is real. The question is how much illiquidity a given portfolio can absorb.

For a $10 million liquid portfolio, a $5 million commitment to a single defense PE fund represents 50% illiquidity in that asset, which is too concentrated. For a $50 million portfolio with $20 million already in liquid alternatives and public equities, a $5 to $10 million defense PE allocation (10 to 20% of total) is defensible, provided liquid reserves cover 3 to 5 years of living expenses and other commitments.

A reasonable framework for FatFIRE portfolios:

• Total private equity allocation: 15 to 30% of investable assets, consistent with institutional endowment practice
• Defense PE as a share of total PE allocation: 10 to 25%, depending on existing sector concentration and risk tolerance
• Minimum liquid reserve before committing: 3 to 5 years of annual spending, held outside of PE commitments

The evolving private equity landscape has pushed more institutional capital into defense PE, which has compressed entry multiples in some subsectors. Investors entering now should underwrite to more conservative return assumptions than historical data suggests, particularly in defense electronics where EV/EBITDA multiples have expanded.

Sector-specific private equity strategies in adjacent regulated industries, such as medical devices or government healthcare IT, share some structural characteristics with defense PE and can provide diversification within the broader private markets allocation.

What Are the Tax Implications of Investing in Aerospace Defense Private Equity?

Most PE funds are structured as limited partnerships. LPs receive Schedule K-1s annually and are subject to pass-through taxation on ordinary income, capital gains, and carried interest distributions, per IRS Publication 541. The tax profile of a defense PE fund investment is not simple, and it compounds across a 10-year fund life.

The critical planning consideration is carried interest taxation. Under current law, carried interest distributions are taxed at long-term capital gains rates, with a 20% federal maximum for investors in the top bracket. Proposed legislative changes have repeatedly targeted this treatment, seeking to reclassify carried interest as ordinary income at 37% federal. The difference on a $5 million commitment generating $3 million in carried interest distributions is roughly $510,000 in additional federal tax.

Investors should model both scenarios when underwriting expected after-tax returns. The current law scenario is favorable. The ordinary income scenario is not catastrophic, but it materially changes the net IRR calculation.

Account placement matters. Defense PE fund interests held inside a self-directed IRA or a charitable structure (such as a charitable remainder trust) can defer or eliminate tax on distributions, depending on the structure. This is a conversation for your tax attorney before committing capital, not after the K-1 arrives.

UBTI (unrelated business taxable income) is another consideration for tax-exempt accounts. Some PE fund structures generate UBTI through debt-financed investments, which can create unexpected tax liability inside an IRA. Blocker fund structures can address this, but they add complexity and cost.

The private equity market risks associated with tax law changes are real and underappreciated. Investors who underwrote 2020 and 2021 vintage funds assuming current carried interest treatment may face a different outcome if legislation passes during the fund's distribution period.

Due Diligence Framework for Defense PE Fund Selection

Selecting a defense PE fund manager requires a different checklist than evaluating a generalist buyout fund. The sector-specific variables are material.

Questions to ask fund managers during due diligence:

1. What percentage of portfolio company revenue is derived from cost-plus versus fixed-price contracts? (Cost-plus provides margin protection; fixed-price concentrates execution risk.)
2. What is the average contract backlog across portfolio companies, expressed in years of forward revenue coverage?
3. How many portfolio companies hold active facility security clearances, and what is the plan for maintaining clearances through ownership transition?
4. What is the fund's CFIUS track record? Have any deals been blocked or required significant mitigation agreements?
5. What is the team's government relations depth? Former DoD, intelligence community, or congressional staff experience is a sourcing and navigation advantage.
6. What is the fund's policy on LP co-investment rights, and what is the typical co-investment fee structure?

Red flags specific to aerospace and defense:

• Revenue concentration above 30% in a single government program or platform (program cancellation risk is real and has destroyed portfolio companies)
• Targets with export control violations in their history (ITAR/EAR remediation is expensive and can trigger government contract suspension)
• Funds without dedicated compliance infrastructure for CFIUS and export control requirements
• Overly optimistic margin expansion assumptions in businesses with classified program constraints on operational transparency

Private equity-owned companies in the defense sector that have gone through a full PE ownership cycle offer useful case studies. The pattern of value creation, whether through organic growth, bolt-on acquisitions, or margin improvement, reveals a lot about what a given fund actually does operationally versus what it claims in its pitch deck.

Comparing SPACs versus private equity as entry vehicles for defense exposure is worth a brief note. Several defense technology companies went public via SPAC between 2020 and 2022. Most have significantly underperformed. The PE buyout structure, with its longer hold period and active operational involvement, has historically been a more reliable vehicle for defense sector value creation than the SPAC route.

The Exit Landscape for Aerospace and Defense PE

Exit options in defense PE are more constrained than in commercial sectors, and that constraint affects return modeling.

Strategic sales to prime contractors are the most common exit. Lockheed Martin, Raytheon, L3Harris, and similar primes regularly acquire PE-backed suppliers to expand capability or consolidate supply chains. These exits can generate strong multiples when the target has built a defensible position on a major platform, but they require CFIUS clearance for the transaction and can face antitrust scrutiny if the prime already has significant market share in the target's niche.

Secondary PE sales, where one PE firm sells to another, have become more common as the sector has attracted more capital. These transactions can be efficient, but they require the incoming buyer to underwrite a higher entry multiple, which compresses their return potential.

IPOs are possible but uncommon for pure-play defense businesses. Public market investors have historically applied lower multiples to defense-only revenue streams than to diversified industrials, which makes the IPO exit less attractive than a strategic sale for most portfolio companies.

PitchBook's 2024 Aerospace and Defense PE Report tracks median EV/EBITDA exit multiples and hold periods, providing benchmarks against which individual fund performance can be measured. Investors should request fund-level attribution data showing entry and exit multiples by deal, not just aggregate IRR, which can be distorted by timing and capital recycling.

The hold period reality: defense PE funds typically run 5 to 8 years from initial investment to exit, within a 10-year fund structure. Capital called in year one may not generate distributions until year six or seven. Plan accordingly.

References

• U.S. Department of Defense -- "Defense Budget Overview, Fiscal Year 2025" (2024)
• Committee on Foreign Investment in the United States (CFIUS) -- "Annual Report to Congress" (2023)
• Securities and Exchange Commission -- "Form D Filings: Exempt Offerings by Private Funds" (2024)
• Preqin -- "Global Private Equity & Venture Capital Report" (2024)
• PitchBook -- "Aerospace & Defense Private Equity Report" (2024)
• McKinsey & Company -- "Aerospace & Defense Industry Outlook" (2024)
• Deloitte -- "2024 Global Aerospace and Defense Industry Outlook" (2024)
• Internal Revenue Service -- "Publication 541: Partnerships" (2024)