Author: Taylor Warfield, Former Bain Manager and interviewer

Last Updated: September 24, 2026

 

Top aerospace and defense consulting firms include McKinsey, BCG, Bain, Oliver Wyman, Kearney, Roland Berger, Booz Allen Hamilton, Deloitte, Accenture Federal Services, and specialist boutiques such as Renaissance Strategic Advisors. This article ranks 20 of them by the work they actually sell, what they pay, and which ones will ask you to hold a security clearance.

 

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Key Takeaways

 

Aerospace and defense consulting splits into three distinct hiring markets, and picking the wrong one is the most expensive mistake a candidate can make in this sector.

 

• Commercial strategy firms serve aircraft makers, engine builders, and investors, and require no clearance

 

• Government services firms serve the Pentagon and intelligence agencies, and require US citizenship

 

• Boutiques offer the deepest sector work and the smallest hiring classes

 

• Entry pay gaps are large: roughly $112,000 versus roughly $76,000 in first-year base pay in 2026

 

• Avascent no longer exists as a standalone firm, despite what most published lists still say

 

• Defense budgets are at a modern high, which is expanding hiring at defense-facing practices

 

What Are the Top Aerospace and Defense Consulting Firms?

 

The top aerospace and defense consulting firms fall into three groups. Commercial strategy firms such as McKinsey, Oliver Wyman, and Roland Berger advise aircraft makers, suppliers, and investors. Government services firms such as Booz Allen Hamilton and Deloitte serve the Pentagon, while sector boutiques such as Renaissance Strategic Advisors do narrow, technically deep work for both.

 

That three-way split matters because the firms in each group hire different people, run different interviews, and pay very differently. A candidate who applies to all 20 with the same story will lose at almost all of them.

 

Firm	Group	Core A&D work	Clearance typical?
McKinsey	Strategy	Program affordability, growth, defense ministry reform	Sometimes
Boston Consulting Group	Strategy	Industrial performance, sustainment, post-merger integration	Sometimes
Bain & Company	Strategy	Private equity diligence, cost, supply chain resilience	Rarely
Oliver Wyman	Strategy	A&D corporate strategy and deal work through the former Avascent team	Rarely
Kearney	Strategy	Procurement, sourcing, and defense operations	Sometimes
Roland Berger	Strategy	European A&D, rearmament programs, industrial ramp-up	Rarely
L.E.K. Consulting	Strategy	Aftermarket and MRO strategy, aerospace commercial diligence	Rarely
Strategy&	Strategy	Portfolio strategy and industry benchmarking	Sometimes
Booz Allen Hamilton	Government services	Defense technology, cyber, analytics, mission delivery	Almost always
Deloitte GPS	Government services	Defense, security and justice programs, federal modernization	Almost always
Accenture Federal Services	Government services	Federal technology delivery, data platforms, AI	Almost always
Guidehouse	Government services	Defense and security mission optimization, financial management	Often
LMI	Government services	Defense logistics, sustainment, supply chain risk	Often
ICF	Government services	Program evaluation, aviation policy, federal analytics	Sometimes
Renaissance Strategic Advisors	Boutique	Pure A&D strategy, defense electronics, M&A advisory	Rarely
Alton Aviation Consultancy	Boutique	Aviation finance, airline and airport economics, leasing	No
Hawksland Associates	Boutique	UK and European A&D program and supply chain strategy	No
Maine Pointe	Boutique	Supply chain and procurement execution for A&D manufacturers	No
AlixPartners	Boutique	Turnarounds and operational recovery at distressed suppliers	No
FTI Consulting	Boutique	Export controls, disputes, regulatory and compliance risk	Sometimes

 

The sector backdrop explains why hiring is strong right now. PwC reported that the collective revenue of the top 100 aerospace and defense companies passed $1 trillion for the first time in 2025, alongside a commercial aircraft backlog that also crossed $1 trillion. Demand at that scale creates consulting work at every firm on the list above.

 

Which Strategy Firms Lead Aerospace and Defense Consulting?

 

Strategy firms own the corporate side of the sector: growth strategy, portfolio decisions, pricing, program cost, and merger work for the companies that build aircraft, engines, satellites, and weapons systems. These are the highest-paying seats in aerospace and defense consulting and the hardest to win. Most of the work is unclassified, which means no clearance and no citizenship requirement in many offices.

 

McKinsey & Company

 

McKinsey runs the largest defense-experienced bench in strategy consulting. The firm states that its aerospace and defense practice serves more than 75 percent of the world's top 25 aerospace and defense companies and includes over 500 consultants with defense experience plus more than 100 professionals with direct military or industry backgrounds. It also runs a separate Defense and Security team that works with US national security clients.

 

The practice spans commercial aerospace and defense ministries, which is unusual. Very few firms can staff a fighter program cost review and a widebody aftermarket study out of the same partner group.

 

Boston Consulting Group

 

BCG is strongest on the industrial side of aerospace and defense: production ramp-up, sustainment, and manufacturing performance. Its public positioning centers on aircraft maintenance backlogs, naval capacity, and helping defense original equipment manufacturers scale production while integrating new technology.

 

If you want to spend your first two years inside factories and depots rather than in a client's headquarters, BCG is the strongest of the three largest strategy firms for that work.

 

Bain & Company

 

Bain's aerospace and defense franchise leans heavily on private equity. The firm describes itself as the industry leader in due diligence for financial and corporate buyers across the sector, and its client roster covers aircraft and engine makers plus their supplier base. During my time at Bain, the A&D diligence cases were among the most analytically demanding work in the office because you have to model 30-year program revenue off public budget documents.

 

That makes Bain the best commercial strategy option if your goal is a private equity exit. It also means less exposure to government clients than McKinsey offers.

 

Oliver Wyman

 

Oliver Wyman became the most important firm in this sector in November 2022, when it completed its acquisition of Avascent. Roughly 130 Avascent professionals, including 10 partners, joined the firm and were integrated into its Transportation and Services and Private Capital practices. Avascent had been the recognized specialist for government-driven markets for more than 15 years.

 

Almost every published list of aerospace and defense consulting firms still names Avascent as a standalone boutique. It is not one, and candidates who apply there are wasting an application. If you want that work, you apply through the Oliver Wyman case interview process instead.

 

Kearney

 

Kearney's aerospace and defense work sits inside its broader industrial and public sector practice, and its center of gravity is procurement and operations. The firm has long-standing defense services credentials in the Americas, and its current managing partner previously led its global automotive, aerospace, defense, transportation, and industrial practice.

 

Kearney is a realistic target for candidates who cannot break into the top three, and it recruits from a wider set of schools. Candidates who prepare specifically for the Kearney case interview tend to do noticeably better than those who prepare generically.

 

Roland Berger

 

Roland Berger is the strongest European option in this sector. The firm is headquartered in Munich, runs roughly 3,500 consultants across more than 50 offices, and aerospace and defense is one of its named core industries. European rearmament has made it a serious destination.

 

Its German, French, and UK offices run the bulk of the defense work. If you speak German or French and want defense strategy exposure, this is often a better bet than a US office of a larger firm.

 

L.E.K. Consulting

 

L.E.K. is the specialist for commercial aerospace aftermarket work: maintenance, repair, and overhaul economics, spare parts strategy, and component repair. The firm has built that franchise over three decades and pairs it with heavy commercial due diligence volume for investors buying into the supply chain.

 

Aftermarket work is the most durable revenue stream in aerospace, so this is a stable place to build sector expertise. The L.E.K. case interview is unusually quantitative, so treat the math preparation seriously.

 

Strategy&

 

Strategy& carries the institutional memory of Booz Allen Hamilton's old commercial arm, which is why it retains genuine defense industry depth despite sitting inside a Big Four firm. Its work skews toward portfolio strategy, industry benchmarking, and capability assessments for primes.

 

The tradeoff is that project scope can be narrower than at an independent strategy firm. Candidates should ask directly how much of the practice is classified work before accepting an offer.

 

Which Firms Lead Defense and Government Services Consulting?

 

Government services firms sell directly to the Department of Defense, the intelligence community, and federal agencies. The work is longer, more technical, and more implementation-heavy than strategy consulting. It also carries the strongest hiring tailwind in the sector right now, since the White House requested $1.5 trillion in total defense spending for fiscal year 2027, a figure the Center for Strategic and International Studies called the highest single-year defense funding level since World War II.

 

Booz Allen Hamilton

 

Booz Allen is the largest pure defense-facing consultancy in the United States. The firm reported $11.2 billion in revenue for the fiscal year ended March 31, 2026, employed roughly 31,500 people globally, and closed the year with a record $38 billion backlog. Its national security portfolio grew even as its civil business declined.

 

Booz Allen hires more military veterans and cleared professionals than any other firm on this list. If you already hold a clearance, this is the highest-probability route into defense consulting, and the Booz Allen Hamilton interview is less case-heavy than an MBB process.

 

Deloitte Government and Public Services

 

Deloitte's Government and Public Services practice is the largest federal consulting arm inside a Big Four firm. Deloitte reports that more than 15,000 professionals across 75-plus offices serve GPS clients, organized into Civil Government, Defense Security and Justice, Federal Health, and State Local and Higher Education sectors.

 

Defense Security and Justice is the group you want if aerospace and defense is your goal. GPS consultants generally must be US citizens and obtain a clearance, and the Deloitte federal case interview uses public sector scenarios rather than commercial profitability cases.

 

Accenture Federal Services

 

Accenture Federal Services is the federal arm of the world's largest technology consultancy, and the work is heavily weighted toward delivery: data platforms, AI deployment, and system modernization for defense and civilian agencies. It is a strong option for candidates with technical skills who want government mission work.

 

Be aware of the near-term picture before you commit. Accenture flagged its US federal business as a drag on Americas growth through fiscal 2026, so federal hiring has been softer than the headline defense budget suggests.

 

Guidehouse

 

Guidehouse runs a dedicated Defense and Security practice supporting diplomatic, intelligence, law enforcement, and defense agencies. Its focus areas are mission optimization, technology modernization, and financial management.

 

Guidehouse recruits actively on campus and runs a clearer early-career pipeline than most mid-size federal firms. That makes it a good first job for undergraduates who know they want national security work.

 

LMI

 

LMI was founded in 1961 at the request of Secretary of Defense Robert McNamara to solve Defense Department logistics problems. It operated as a federally funded research and development center for decades before returning to private ownership, and it remains headquartered in Tysons, Virginia.

 

Sustainment, logistics, and supply chain risk are LMI's core. Candidates with operations research, industrial engineering, or military logistics backgrounds are unusually competitive here.

 

ICF

 

ICF is the smallest of the major federal consultancies covered here and the most analytics-driven. Its aviation and defense work centers on program evaluation, policy analysis, and aviation economics rather than classified mission support.

 

ICF is a sensible target for candidates from public policy and economics programs. Clearance requirements are lighter than at Booz Allen or Deloitte GPS.

 

What Are the Best Aerospace and Defense Consulting Boutiques?

 

Boutiques offer the deepest sector immersion available anywhere in consulting. Analysts read budget justification documents, build program-level forecasts, and become genuine experts on a narrow slice of the industry within a year. The tradeoff is tiny hiring classes and less name recognition outside the sector.

 

Renaissance Strategic Advisors

 

Renaissance Strategic Advisors is now the leading independent aerospace and defense strategy firm, a position it inherited when Avascent was absorbed. The firm describes itself as an 85-person industry specialist team, headquartered in Arlington, Virginia, with offices in London, Paris, and Melbourne.

 

The work is strategy consulting and merger advisory for defense primes, conglomerates, emerging technology firms, and investors. Associates are expected to build defense budget analysis into client recommendations, which means real fluency in how the Pentagon actually spends money.

 

Alton Aviation Consultancy

 

Alton is the specialist for the aviation finance side of the sector: aircraft leasing, airline economics, airport advisory, and asset valuation. It works with lessors, lenders, and investors rather than defense agencies.

 

Candidates who want aerospace exposure without any defense or clearance component should look here first. The finance skew also makes it a natural bridge into aviation investing.

 

Hawksland Associates

 

Hawksland is a UK boutique focused on aerospace and defense strategy, program management, and supply chain. It is one of the few genuinely sector-dedicated advisory firms outside the United States.

 

Its scale is small, so openings are rare and usually filled through direct outreach. A well-targeted consulting networking email is worth far more than an online application at a firm this size.

 

Maine Pointe

 

Maine Pointe does supply chain and procurement execution work for aerospace and defense manufacturers and their private equity owners. The engagements are hands-on and site-based rather than analytical.

 

This is implementation work, not strategy work. Candidates who like being on a shop floor solving throughput problems will find it more satisfying than a slide-heavy strategy role.

 

AlixPartners

 

AlixPartners handles the distressed end of the sector: supplier turnarounds, operational recovery, and interim management when a subtier supplier cannot meet rate. Aerospace supply chains have been under sustained strain, which keeps this pipeline full.

 

The firm's culture is famously intense and its cases are unusually operational. Candidates should expect the AlixPartners case interview to test cash flow and restructuring judgment rather than market sizing.

 

FTI Consulting

 

FTI covers the risk and regulatory side of aerospace and defense: export controls, International Traffic in Arms Regulations compliance, disputes, and investigations. Its A&D team also does performance improvement and transaction support.

 

Export control expertise is scarce and well paid. Candidates with legal, compliance, or trade backgrounds have a genuine edge here that they would not have at a strategy firm.

 

How Much Do Aerospace and Defense Consultants Get Paid?

 

Pay in this sector splits along the same three-way line as the work. Commercial strategy pays the most, government services pays the least, and boutiques land in between with more variance. The gap at the entry level is roughly $36,000 per year, which compounds fast.

 

Firm and level	Reported pay	Pay type	Source and year
McKinsey, BCG, Bain undergraduate hire	~$112,000	Base salary	Reported US bands, 2026
McKinsey, BCG, Bain post-MBA associate	~$192,000	Base salary	Reported US bands, 2026
Booz Allen consultant (entry)	~$76,000	Median total package	Levels.fyi, 2026
Booz Allen senior consultant	~$87,000	Median total package	Levels.fyi, 2026
Booz Allen management consultant (all levels)	~$109,000	Median total package	Levels.fyi, 2026
Booz Allen senior associate (top of band)	up to $195,000	Total package	Levels.fyi, 2026

 

Source for Booz Allen figures: Levels.fyi management consultant data, accessed August 2026.

 

Two features of federal pay are worth understanding before you compare offers. Government services compensation is almost entirely base salary with a modest bonus and near-zero equity, so a total-package number from a commercial firm is not an apples-to-apples comparison. An active clearance also commands a premium, which narrows the gap for cleared candidates over time.

 

Do You Need a Security Clearance for Defense Consulting?

 

You do not need a clearance to apply, and you cannot get one on your own. Clearances are sponsored by an employer against a specific role, so the standard path is to receive an offer first and then start the investigation. What you do need for cleared work is US citizenship, which is a hard requirement with no exceptions.

 

Clearance level	Processing time	Typical use in consulting
None	Not applicable	Commercial strategy for aircraft makers, suppliers, lessors, and investors
Secret	156 days	Most Department of Defense program, logistics, and modernization work
Top Secret	227 days	Intelligence community projects and sensitive defense programs

 

Processing times above are Defense Counterintelligence and Security Agency industry figures for the first quarter of fiscal year 2026, covering the fastest 90 percent of cases. The slowest 10 percent take considerably longer, and adding sensitive compartmented information access or a polygraph extends the timeline further.

 

Two practical points follow from those numbers. Many firms grant an interim Secret so you can start work in weeks rather than months, and reciprocity means an existing clearance transfers to a new employer far faster than a fresh investigation. Having coached hundreds of candidates through consulting recruiting, I have seen cleared applicants get pulled forward in the process for exactly this reason.

 

How Do You Get Into Aerospace and Defense Consulting?

 

Break the process into five steps and run them in order. Candidates who skip straight to applications almost always target the wrong group of firms and write a resume that speaks to none of them.

 

1. Pick your group first: decide whether you want commercial strategy, government services, or boutique work before you touch an application, because the three require different stories
   
   
2. Build one credible sector artifact: a program cost model, a budget analysis, a supply chain teardown, or an internship at a prime gives you something specific to talk about
   
   
3. Rewrite your resume for the group: strategy firms want quantified business impact while federal firms want clearance status, citizenship, and mission relevance stated plainly
   
   
4. Network into the practice, not the firm: reach out to consultants in the aerospace and defense or defense and security group specifically, since generalist recruiters rarely know practice-level openings
   
   
5. Prepare industry-specific cases: practice with defense procurement, program cost, and aftermarket scenarios rather than generic profitability cases

 

Step five is where most candidates lose. An aerospace and defense case interview assumes you understand cost-plus contracting, program lifecycles, and how budget cycles gate revenue, and interviewers notice immediately when you do not. If you want to build that structure quickly, my case interview course covers the frameworks and math you need in as little as 7 days.

 

What Mistakes Do Candidates Make Targeting A&D Consulting Firms?

 

These are the errors I see most often from candidates chasing this sector. Each one is avoidable in an afternoon.

 

Mistake #1: Confusing defense primes with consulting firms

 

Lockheed Martin, Northrop Grumman, RTX, and BAE Systems appear on many published lists of aerospace and defense consulting firms. They are manufacturers with internal advisory and services arms, not consultancies you can join as a consultant.

 

Applying to them expecting a consulting career path leads to an engineering or program management role instead. Know which one you actually want.

 

Mistake #2: Using outdated firm lists

 

The Avascent example is the clearest case, but it is not the only one. Firms in this sector consolidate frequently, and a list written three years ago will send you to firms that no longer exist under that name.

 

Check the firm's own careers page before you invest time in an application. Two minutes of verification saves a wasted week.

 

Mistake #3: Treating a technical background as a disadvantage

 

Engineering and physics candidates routinely apologize for their backgrounds in aerospace and defense interviews. That is backwards. This is one of the few sectors where a technical degree is a direct asset, especially at boutiques covering propulsion, space, or defense electronics.

 

The work of moving from engineering to consulting is learning to lead with a recommendation rather than a methodology. The technical depth is the easy part to keep.

 

Mistake #4: Ignoring exit options before you choose

 

Government services consulting produces different exits than commercial strategy. Cleared federal consultants move into defense primes, government roles, and defense technology startups, while commercial A&D consultants move into private equity and corporate strategy.

 

Neither path is better. But consulting exit opportunities diverge within about three years, so decide early rather than assuming you can switch later.

 

Mistake #5: Writing a generic consulting resume

 

Federal firms screen for citizenship and clearance status in the first pass. If those are not visible near the top of your consulting resume, a recruiter with 300 applications will not hunt for them.

 

Choosing among the top aerospace and defense consulting firms comes down to one decision you should make before you write a single application: whether you want to serve the companies that build the hardware or the government that buys it. Pick that lane, then build a resume and a case preparation plan that speaks to it directly.

 

Frequently Asked Questions

 

Which consulting firm is best for aerospace and defense?

 

There is no single best firm, because the answer depends on which client you want to serve. McKinsey, Oliver Wyman, and Roland Berger lead corporate strategy work for aircraft makers, engine builders, and defense primes. Booz Allen Hamilton and Deloitte lead mission and technology work for the US government. Renaissance Strategic Advisors leads pure aerospace and defense strategy work at boutique scale.

 

Do aerospace and defense consultants need a security clearance?

 

It depends on the client, not the firm. Commercial strategy work for aircraft makers, suppliers, and private equity investors requires no clearance at all. Work for the Department of Defense or intelligence agencies almost always requires at least a Secret clearance and US citizenship. Firms sponsor clearances for new hires, so you do not need one before you apply.

 

How much do aerospace and defense consultants make?

 

Pay splits sharply by firm type. Undergraduate hires at McKinsey, BCG, and Bain start around $112,000 base in 2026, and post-MBA associates start around $192,000 base. Levels.fyi data from 2026 puts the median management consultant package at Booz Allen Hamilton at roughly $109,000, with senior levels reaching about $195,000. Government services consulting pays materially less than commercial strategy at the same tenure.

 

Is Avascent still an independent aerospace and defense consulting firm?

 

No. Oliver Wyman completed its acquisition of Avascent on November 1, 2022. Roughly 130 Avascent professionals, including 10 partners, joined Oliver Wyman and were folded into its Transportation and Services and Private Capital practices. Many published firm lists are still out of date on this, so applying to Avascent as a standalone firm is a wasted application.

 

Do you need an engineering degree to work in aerospace and defense consulting?

 

No, but technical credibility helps more in this sector than in almost any other. Boutiques that cover defense electronics, space, or propulsion often prefer engineering or physics backgrounds. Strategy firms and government services firms hire heavily from business, economics, policy, and international affairs programs. Military service and prior government experience are treated as strong substitutes for a technical degree.

 

What are the exit opportunities from aerospace and defense consulting?

 

The most common exits are corporate strategy and program management roles at defense primes, business development jobs at defense technology startups, private equity investing in government-driven markets, and civil service or policy roles. Consultants who build a genuine sector reputation tend to move into narrower and better-paid roles than generalist consultants. A clearance also widens the exit market considerably, since cleared candidates compete in a much smaller pool.

 

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