Aerospace Manufacturing M&A Multiples: What Actually Determines the Multiple?

“What multiple are aerospace manufacturing companies selling for?”

I hear versions of that question all the time.

It is a reasonable question.

Unfortunately, it is usually asked too early.

If someone tells you that aerospace manufacturers are worth 7x EBITDA, 9x EBITDA, 11x EBITDA—or any other specific number—without first understanding your company, they are giving you a shortcut where no shortcut exists.

There is no universal aerospace manufacturing multiple.

An aerospace manufacturer with aging equipment, declining programs, weak margins and significant owner dependency should not receive the same multiple as a highly automated manufacturer with strong backlog, sole-source positions, difficult-to-replicate capabilities, excellent customer scorecards and years of visibility on active aerospace or defense programs.

They may both be “aerospace manufacturers.”

They are not the same investment.

At Accelerated Manufacturing M&A, we view the multiple as the result of the analysis—not the starting point.

Before discussing what multiple a buyer may pay, we first need to understand what makes the company's earnings durable, transferable and difficult to replace.

What is an EBITDA multiple in an aerospace manufacturing transaction?

An EBITDA multiple is one method buyers and M&A professionals use to translate a company's earnings into an estimated enterprise value.

In its simplest form:

Adjusted EBITDA × Valuation Multiple = Enterprise Value

For example, if a company has $4 million of normalized adjusted EBITDA and the market supports a 7x multiple:

$4 million × 7 = $28 million enterprise value

Simple enough.

But the arithmetic is the easy part.

The difficult question is:

Why should the multiple be 7x?

Why not 5.5x?

Why not 8x?

Why not 10x?

That is where the actual valuation work begins.

The multiple represents the market's assessment of the quality, risk, durability and growth potential of those earnings.

The stronger and more defensible the future earnings appear, the more a qualified buyer may be willing to pay for each dollar of EBITDA.

The more uncertainty surrounding those earnings, the more cautious the buyer becomes.

What multiples are aerospace and defense companies selling for?

Broad market data can provide useful context, but it should never be confused with the valuation of your particular company.

Capstone Partners reported that broader aerospace and defense M&A transactions averaged approximately 11.4x EV/EBITDA during 2025, while the average was approximately 9.5x in the first quarter of 2026. Those transactions span a much broader universe than privately held lower-middle-market manufacturing companies, including companies with different sizes, technologies, business models and revenue characteristics.

For perspective, Capstone reported an average 8.9x EV/EBITDA multiple for industrial targets during 2025.

Those numbers tell us something important:

Buyers are willing to pay strong valuations for attractive aerospace and defense businesses.

They do not tell us:

“Your $25 million aerospace machine shop is worth 11.4x EBITDA.”

That's where owners get into trouble.

Published M&A averages can include larger businesses, proprietary technology companies, government-services providers, software businesses, platform acquisitions and companies with economics that look nothing like a privately held precision manufacturer.

Sector data provides a market reference point.

It does not replace company-specific valuation.

Why can an aerospace manufacturer receive a higher multiple than a general machine shop?

Because the buyer may be acquiring barriers to entry that do not exist in ordinary commercial manufacturing.

Those barriers—and the transaction issues surrounding them—are central to our work with aerospace, defense and space manufacturers preparing for a sale.

Think about what may surround a well-established aerospace or defense supplier:

• AS9100 certification
• Nadcap-accredited processes
• Customer source approvals
• First-article qualification history
• ITAR-controlled work
• CMMC or other cybersecurity requirements
• Long-standing customer relationships
• Long-Term Agreements
• Sole-source positions
• Customer-owned tooling
• Program-specific manufacturing knowledge
• Difficult tolerances
• Traceability systems
• Inspection capabilities
• Specialized materials experience
• Qualified special-process suppliers
• Skilled aerospace machinists and programmers
• Years of successful delivery history

A competitor may be able to purchase similar equipment.

That does not mean the competitor can immediately replace the company.

That's an important distinction.

The multiple begins to increase when the buyer believes:

“If I don't own this company, recreating what it has built would be difficult, expensive or take years.”

That is specialized manufacturing value.

What factors can push an aerospace manufacturing multiple higher?

There is no single factor that automatically adds another “turn” to the multiple.

Instead, buyers evaluate how several characteristics work together.

1. Strong, consistent adjusted EBITDA

Before we talk about premium multiples, the earnings themselves need to be credible.

Buyers prefer businesses showing:

• Stable or growing revenue
• Consistent EBITDA
• Healthy gross margins
• Defensible add-backs
• Accurate job costing
• Reliable financial statements
• Strong cash conversion
• Limited earnings volatility

A company with predictable $4 million EBITDA is generally easier to underwrite than one bouncing between $1.5 million and $5 million depending on the year.

Consistency reduces uncertainty.

Reduced uncertainty can support a stronger multiple.

2. Healthy organic growth

Buyers frequently pay more for companies they believe can become substantially larger.

The important question isn't simply:

“Did you grow last year?”

It is:

“Why are you growing, and is it sustainable?”

Growth supported by new program awards, increasing shipsets, expanded customer relationships, additional qualified work or unused capacity may be very attractive.

Growth created by one temporary surge order deserves more scrutiny.

A buyer pays for the future.

The clearer that future becomes, the stronger the valuation argument.

3. Durable backlog

Backlog can provide visibility into future revenue.

But buyers don't value backlog based only on the headline number.

They want to know:

• Is it firm?
• Is it cancellable?
• Is it profitable?
• Is pricing current?
• Does the company have capacity to deliver it?
• What customers does it come from?
• What programs support it?
• Are those programs growing?
• Is the work sole-source?
• Does the backlog contain material inflation or labor risk?

A $30 million backlog does not automatically deserve a premium.

A high-quality $30 million backlog may.

4. Long-Term Agreements with favorable economics

An LTA can make future revenue more predictable.

But the buyer will examine the actual economics.

A strong agreement may provide:

• Revenue visibility
• Pricing mechanisms
• Escalation provisions
• Stable customer relationships
• Defined production requirements
• Renewal history

A weak agreement may lock the manufacturer into:

• Poor pricing
• Margin compression
• Unfavorable payment terms
• Cost increases that cannot be passed through
• Difficult termination provisions

The acronym LTA does not increase the multiple.

The quality of the agreement might.

5. Sole-source positions

A defensible sole-source position can be extremely valuable because it limits practical competition.

The buyer will want to understand why the company is sole-source.

The strongest reasons include:

• Technical qualification
• Proprietary technology
• Difficult manufacturing requirements
• Customer approval
• Specialized tooling
• Program history
• Process capability
• Intellectual property

A sole-source position that would be extremely difficult to replace can improve confidence in future revenue.

And confidence matters to the multiple.

6. Long program lifecycles

A manufacturer producing components for established aerospace or defense programs may have a different risk profile from a company that has to win new commercial jobs every month.

The buyer will evaluate:

• Where the program sits in its lifecycle
• Expected production rates
• Installed fleet
• Replacement demand
• Aftermarket opportunities
• Customer forecasts
• Program funding
• The company's content per platform

A position on a growing program may be valuable.

A large concentration on a program approaching sunset may have the opposite effect.

This is why the customer name alone isn't enough.

The program underneath the customer matters.

7. Difficult customer qualification and high switching costs

One of the most important valuation questions in aerospace manufacturing is:

How easy would it be for the customer to move this work somewhere else?

If the answer is “very easy,” there may be limited competitive protection.

If moving the work requires:

• new first articles,
• customer engineering approval,
• tooling transfers,
• audits,
• process qualification,
• inspection validation,
• source approval,
• new quality documentation,
• or significant program risk,

the customer may have a strong reason to keep a successful incumbent supplier.

That creates revenue durability.

8. AS9100, Nadcap and meaningful customer approvals

Certifications can contribute to a higher multiple when they support valuable revenue and limit competition.

But I would never tell an owner:

“AS9100 adds half a turn.”

or:

“Nadcap adds another 1x.”

That's not how responsible manufacturing valuation works.

The real question is:

What business does this certification allow you to perform that another manufacturer cannot easily win?

A certification disconnected from profitable work has limited economic value.

A certification, accreditation or customer approval that protects millions of dollars of difficult-to-replace revenue can be very different.

9. Modern equipment and available capacity

Buyers like growth that does not require immediately spending millions of dollars.

Imagine two companies with the same EBITDA.

Company A is operating aging equipment at nearly 100% capacity.

Company B has modern five-axis machines, automated pallet systems, probing, inspection capability and sufficient unused capacity to add meaningful revenue.

Company B may offer the buyer a much clearer path to growth.

That can support a stronger multiple.

10. Automation and lights-out manufacturing

Automation can make a manufacturer more attractive when it creates measurable economic benefits.

For example:

• Higher spindle utilization
• Reduced direct-labor dependence
• More throughput
• Better consistency
• Increased capacity
• Improved margins
• Ability to operate unattended
• Greater scalability

But simply saying “we run lights-out” isn't enough.

The buyer wants to understand what the capability actually contributes to EBITDA, capacity and competitive advantage.

11. A skilled, stable workforce

In aerospace manufacturing, people can be harder to replace than machines.

A strong company may have:

• Experienced five-axis programmers
• Skilled machinists
• CMM programmers
• Quality engineers
• Manufacturing engineers
• Program managers
• Inspectors
• Special-process technicians
• Long-tenured supervisors
• Successful apprenticeship or training programs

A buyer considering two otherwise similar manufacturers may place a premium on the company with the deeper and more stable workforce.

That's especially true in markets where skilled manufacturing labor is scarce.

12. Strong management that does not depend on the owner

A buyer doesn't want to discover that the company's most important asset is walking out the door after closing.

Companies tend to become more transferable when:

• Customer relationships extend beyond the founder
• Managers can make important decisions
• Quoting is documented
• Engineering knowledge is distributed
• Financial reporting is reliable
• Production operates without constant owner involvement
• Leadership exists below the owner

The more independently the company operates, the less transition risk the buyer assumes.

Less transition risk can support a stronger multiple.

13. Intellectual property or proprietary products

A build-to-print manufacturer may be very valuable.

But a manufacturer with proprietary technology can create an additional layer of strategic value.

That might include:

• Patents
• Proprietary products
• Unique manufacturing processes
• Specialized tooling
• Engineering know-how
• Approved proprietary components
• Aftermarket products
• Recurring replacement demand

The important question is not:

“Do you own intellectual property?”

It is:

“Does the intellectual property create profitable competitive advantage?”

14. Several qualified buyers with a strategic reason to acquire the company

This factor is frequently underestimated.

A valuation isn't happening in isolation.

The buyer universe matters.

A strategic acquirer may see value that a purely financial buyer does not.

Perhaps the company provides:

• Immediate qualified capacity
• Entry into an important customer
• Access to a new aerospace program
• A missing manufacturing capability
• Geographic expansion
• Nadcap processes the buyer currently outsources
• Skilled labor
• New engineering expertise
• Cross-selling opportunities
• Intellectual property

When multiple qualified buyers have compelling reasons to own the same business, competitive tension can affect the ultimate price.

That's why buyer identification is part of value creation—not simply something that happens after valuation.

What factors can push the multiple lower?

The same logic works in reverse.

Anything that makes future earnings less predictable, more fragile or more expensive to maintain can put downward pressure on the multiple.

Declining revenue or EBITDA

One poor month can be explained.

A multi-year decline is harder.

Buyers will want to understand whether the problem is temporary or structural.

Weak or aggressive EBITDA adjustments

An owner may believe certain expenses should be added back.

The buyer may disagree.

Since the multiple is applied to adjusted EBITDA, even a relatively modest disagreement can materially change enterprise value.

Fragile customer concentration

Customer concentration becomes more concerning when the relationship depends heavily on the owner, has poor documentation, weak margins, limited switching costs or significant rebid risk.

Our detailed article on customer concentration in manufacturing M&A explains why the percentage alone does not tell the whole story.

Dangerous program concentration

The company may appear diversified because it serves several customers.

But if much of the revenue ultimately depends on one aircraft or defense program, the risk can still be significant.

Customer diversification and program diversification are not necessarily the same thing.

Weak or shrinking backlog

A buyer may become cautious when backlog is falling, poorly documented or based primarily on forecasts rather than firm work.

Aging equipment and deferred capital expenditures

A buyer who expects to spend several million dollars immediately after closing may incorporate that reality into what they're willing to pay.

Quality problems

Repeated escapes, poor supplier scorecards, customer complaints, corrective-action issues or certification problems can create significant risk.

Workforce retirement risk

A company whose most important machinists, programmers and quality personnel are nearing retirement without trained successors may look very different after the buyer examines the workforce.

Heavy owner dependency

If the seller is the chief salesperson, estimator, engineer, production problem-solver and relationship manager, the company becomes harder to transfer.

Unfavorable contracts

An LTA with weak pricing can hurt value rather than increase it.

Significant compliance uncertainty

Issues involving ITAR, cybersecurity, customer approvals, certifications or classified work can create transaction risk if they are not identified and managed early.

Our industry guide explains how to keep approvals and compliance intact in a sale, which is where most of this risk is won or lost.

Required capital investment

A business that must invest heavily just to preserve current revenue has different economics from one capable of growing using existing infrastructure.

How does customer concentration change an aerospace manufacturing multiple?

This deserves special attention because aerospace frequently produces customer concentration that would worry a generalist.

Suppose a manufacturer generates 45% of its revenue from one customer.

Should the multiple go down?

Maybe.

Before answering, I want to know:

• How long has the relationship existed?
• How many individual programs are involved?
• How many part numbers?
• What are the margins?
• Are there LTAs?
• Is the work sole-source?
• Are there multiple relationships inside the customer?
• What do the supplier scorecards look like?
• Would the work be difficult to transfer?
• Is the customer's demand increasing or declining?
• Does the relationship survive a change of ownership?

Concentrated revenue that can disappear tomorrow is dangerous.

Concentrated revenue embedded across numerous qualified programs may have a very different risk profile.

Percentage alone does not determine the multiple.

Does AS9100 automatically increase the multiple?

No.

Neither does Nadcap.

Neither does ITAR registration.

Neither does CMMC readiness.

These can all be important.

But certifications and compliance systems create value when they support profitable revenue and form barriers to entry.

Consider two AS9100 companies.

One has declining revenue, poor margins and customer-quality problems.

The other has excellent performance, highly qualified work and customers that cannot easily move the programs elsewhere.

The certificate is the same.

The economics are not.

That's why the impact of certifications has to be evaluated in context.

Our separate article on how Nadcap certification affects manufacturing M&A goes deeper into that particular accreditation and its potential transaction implications.

Does lights-out manufacturing automatically produce a higher multiple?

No.

But it can strengthen the argument.

Suppose an aerospace manufacturer has successfully built unattended machining into its production model.

If that capability allows the company to:

• increase machine utilization,
• recover more productive hours from existing equipment,
• reduce labor constraints,
• increase capacity,
• improve margins,
• and take on new work without proportionally increasing overhead,

then the buyer may see a more scalable company.

That's meaningful.

Accelerated's separate analysis of lights-out manufacturing and EBITDA explains why properly understanding and pricing unattended machine time can materially affect both earnings and enterprise value.

The key is that technology should create an economic benefit.

Technology for its own sake does not create the premium.

Why does company size often affect the multiple?

Buyers frequently perceive larger, more established companies as less risky than very small operations.

A larger manufacturer may have:

• A deeper management team
• More diversified customers
• More programs
• Better systems
• Greater purchasing power
• More sophisticated financial reporting
• Broader capabilities
• Less dependence on one individual

That doesn't mean a smaller specialist cannot command a strong valuation.

A small company possessing highly scarce technology, unique approvals or an exceptional strategic position can be extremely attractive.

But size is one element buyers may consider when evaluating risk.

Can a strategic buyer pay a higher multiple than private equity?

Sometimes.

But don't assume a strategic buyer always pays more.

A strategic buyer may identify synergies that justify additional value.

For example, it may be able to:

• Move existing work into the seller's facility
• Eliminate outsourced processes
• Enter a customer it cannot currently access
• Add qualified capacity immediately
• Use the seller's technology across other platforms
• Reduce duplicate overhead
• Expand geographically
• Cross-sell products or capabilities

A private equity buyer may see different opportunities, such as building a platform, completing an add-on acquisition, professionalizing the organization or accelerating growth.

A family office may place still another value on long-term ownership, management continuity or manufacturing specialization.

The important point is:

Different buyers can value the exact same company differently.

That's why a broad, qualified buyer process can matter so much.

Our guide comparing family offices, private equity firms and strategic buyers explains those buyer differences in more detail.

Can competition among buyers increase the ultimate sale multiple?

Absolutely.

A valuation establishes what we believe the company should reasonably command based on its characteristics and market conditions.

A competitive sale process answers a different question:

What will the best-qualified buyer actually pay to own it?

Accelerated has seen this difference in real transactions.

One military-aircraft component manufacturer came to us after receiving several very different valuations. The company's value was being underestimated because others had not adequately accounted for its manufacturing difficulty, customer relationships, certifications, LTAs and scarcity.

Once properly positioned and exposed to qualified buyers, competitive tension produced a result above the original valuation.

That is not a guarantee that competition will always create an outsized result.

It demonstrates something important:

The buyer universe is part of the value equation.

You can see additional examples of this in our aerospace and defense manufacturing M&A case studies.

Is a higher multiple always a better deal for the seller?

Not necessarily.

This is where sellers need to distinguish between valuation multiple and deal economics.

Suppose Buyer A offers 8x EBITDA with:

• significant rollover equity
• a large earnout
• seller financing
• aggressive working-capital requirements
• and substantial contingencies

Buyer B offers 7.5x EBITDA with:

• substantially more cash at closing
• no earnout
• limited contingencies
• and a cleaner transition

Which is the better deal?

You cannot answer that by looking at the multiple alone.

The headline valuation matters.

So do:

• Cash at closing
• Earnouts
• Seller notes
• Rollover equity
• Escrows
• Working-capital targets
• Indemnification
• Financing contingencies
• Employment requirements
• Real-estate terms
• Closing certainty

A seller should evaluate the whole transaction, not bragging rights over the highest headline multiple.

How can an aerospace manufacturer improve its multiple before selling?

The best way to improve a multiple is rarely to argue harder with the buyer.

Improve the business the buyer is valuing.

That may mean:

• Reducing unnecessary owner dependency
• Strengthening management
• Improving gross margins
• Cleaning up financial statements
• Documenting EBITDA adjustments
• Understanding part-level profitability
• Renegotiating poor LTAs
• Increasing program diversification
• Improving backlog visibility
• Strengthening customer relationships beyond the owner
• Maintaining AS9100 and Nadcap performance
• Improving quality metrics
• Documenting sole-source status
• Investing intelligently in equipment
• Adding automation where the economics justify it
• Cross-training employees
• Developing younger skilled workers
• Addressing looming retirements
• Improving capacity
• Resolving compliance issues
• Protecting intellectual property
• Building a credible growth plan

Notice what most of these have in common.

They either:

increase confidence in future earnings

or:

reduce the buyer's perception of risk.

That's what moves multiples.

Our guide to preparing an aerospace company for sale explains how to address these issues before the company goes to market.

How far in advance should an owner try to improve the multiple?

The sooner the better.

You cannot meaningfully fix owner dependency three weeks before due diligence.

You cannot create an experienced management team six weeks before marketing the company.

You cannot replace an aging workforce overnight.

You cannot suddenly manufacture five years of customer history.

And you cannot turn a declining aerospace program into a growing one because you've decided to sell.

Some valuation issues can be corrected relatively quickly.

Others require several years.

That is why I prefer to evaluate a company before the owner absolutely has to sell it.

Time creates options.

What's the difference between an aerospace valuation and an aerospace multiple?

This distinction is worth making very clear.

The multiple is one component of the valuation.

The valuation is the broader analysis.

A real aerospace manufacturing valuation examines:

• Normalized earnings
• Financial trends
• Customers
• Programs
• Backlog
• Contracts
• Certifications
• Source positions
• Equipment
• Capacity
• Workforce
• Management
• Intellectual property
• Capital requirements
• Risks
• Growth opportunities
• Buyer demand

That analysis helps establish the appropriate multiple and ultimately the company's enterprise value.

So when an owner asks:

“What's the right multiple?”

My answer is:

First, let's understand the company.

Our complete guide to aerospace manufacturing valuation explains that broader valuation process in detail.

What is the biggest mistake owners make with aerospace M&A multiples?

Believing the multiple exists before the company has been analyzed.

It doesn't.

The multiple should reflect what the buyer believes about the future.

How secure are the earnings?

How transferable are the customer relationships?

How difficult is the company to replace?

How much growth is available?

How much capital will be required?

How strong is management?

How valuable are the qualifications?

How scarce are the capabilities?

How many buyers want them?

Those questions create the multiple.

Not a database.

Not an internet calculator.

Not a generic machine-shop rule of thumb.

And certainly not a competitor's transaction where you don't know the financials, structure, customer concentration, capital requirements or strategic rationale.

So what multiple should your aerospace manufacturing company receive?

There is no responsible answer until the company has been thoroughly analyzed.

Your company may deserve a premium.

It may not.

But if it does, the premium should be supported by specific, defensible facts.

Perhaps your customers cannot easily replace you.

Perhaps your programs provide years of visibility.

Perhaps you possess scarce Nadcap-accredited processes.

Perhaps your five-axis capacity is difficult to find.

Perhaps you have exceptional supplier scorecards.

Perhaps your backlog is strong and profitable.

Perhaps you operate lights-out.

Perhaps your workforce has knowledge another manufacturer cannot hire.

Perhaps your company is sole-source.

Perhaps your intellectual property gives a strategic buyer an opportunity it cannot obtain elsewhere.

Perhaps several buyers desperately need exactly what you have built.

Those are reasons for a preferential multiple.

“We're in aerospace” is not.

The right question isn't:

“What multiple are aerospace companies getting?”

It is:

“What characteristics of my company justify the multiple I want buyers to pay?”

Once we can answer that question clearly—and prove it—we can begin talking intelligently about what the company may actually be worth.

And if valuation and multiples are only part of the questions you're working through, our complete guide to selling an aerospace and defense manufacturing company explains the broader process from preparation and valuation through buyer selection, due diligence and closing.

If you're considering selling an aerospace, defense or space manufacturing company, Accelerated Manufacturing M&A can help you understand the factors driving your multiple, your valuation and the buyer universe most likely to recognize the specialized value you've built. Start with a confidential consultation.