Best Consulting Firms in Each Practice Area

Consultants across the nation rate the top firms in their practice areas.

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2025 Best Consulting Firms for Aerospace & Defense Consulting

#1

Lockheed Martin Corporation (IT Consulting)

Lockheed Martin is a global security and aerospace company that designs and manufactures advanced technology systems and products, and also offers management, engineering, technical, scientific, logistics, and information services. They are mainly focused on domestic and foreign defense and civil markets — with the U.S. Department of Defense and other federal government agencies accounting for the majority of its business. The company's activities are organized around four principal areas: aeronautics, electronic systems, information systems and global services (IS&GS), and space systems.

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42.20% of Votes

2024 Ranking

#1

Lockheed Martin Corporation (IT Consulting)
#2

Northrop Grumman Corporation (IT Consulting)

Northrop Grumman is an aerospace and defense technology company — and also the world’s largest shipbuilder. The company is involved in the design, manufacture, and maintenance of defense systems across all environments, including underwater, on the ground, in the air, in outer space, and online. Most of the firm’s business is with the U.S. federal government, especially the Department of Defense, but it also contracts with state and local governments, foreign governments, and domestic and international commercial clients.

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30.35% of Votes

2024 Ranking

#2

Northrop Grumman Corporation (IT Consulting)
#3

Booz Allen Hamilton

One of the best-known firms in the government contracting realm, Booz Allen Hamilton has deep expertise on everything from digital transformation to bleeding-edge cybersecurity. With almost 30,000 employees, there is no shortage of opportunities at the company, but it can also be easy to get lost in the shuffle. Those with existing security clearances hold a significant advantage in the hiring process, while the firm is also a destination of choice for current and former members of the military.

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20.37% of Votes

2024 Ranking

#4

Booz Allen Hamilton
#4

Vertex Professional Services

Vertex Professional Services (formerly Raytheon Professional Services) provides learning solutions for commercial, government, and military clients across 15 industries. For example, the U.S. Army requires a single environment that will allow soldiers­­ to train together from anywhere in the world. In their own words, VPS "blends new and emerging technologies—augmented reality, virtual reality, artificial intelligence, and big data—to connect soldiers and allow them to train like never before."

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20.17% of Votes

2024 Ranking

#5

Vertex Professional Services
#5

McKinsey & Company

McKinsey consultants work in collaborative teams, have opportunities to make meaningful impact, and engage in challenges to stretch their abilities and further their expertise. McKinsey provides a culture that is distinctive and inclusive, focused on a personalized, flexible, dynamic environment that delivers high-performing and sustainable results. The firm is creating conditions for its colleagues to author their own journey and advance based on individual skills and impact.

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18.30% of Votes

2024 Ranking

#3

McKinsey & Company
#6

BAE Systems Applied Intelligence North America

BAE Systems Applied Intelligence (BAE AI) is an international business and technology consulting firm owned by BAE Systems. The firm delivers information intelligence solutions to government and commercial clients. BAE AI develops solutions to strengthen national security and resilience. The firm also help its clients collect, exploit and manage data to deliver critical business services more effectively and economically.

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17.67% of Votes

2024 Ranking

#7

BAE Systems Applied Intelligence North America
#7

Boston Consulting Group (BCG)

Boston Consulting Group (BCG) is the second largest consulting firm by revenue and consistently ranks high in our top consulting firms. The firm’s diverse, global teams bring deep industry and functional expertise to organizations, helping them to grow, build sustainable competitive advantage, and drive positive societal impact. Purpose-driven, the firm strives to drive lasting impact for its employees, clients, and society. "You will be challenged... and rewarded," say insiders.

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12.47% of Votes

2024 Ranking

#6

Boston Consulting Group (BCG)
#8

Bain & Company

Arguably the most employee-focused of the Big 3 strategy players, Bain is a name that will open doors for the rest of your career. That’s if you’re interested in leaving, of course: The firm invests a lot of time and energy in training and development. Couple that with a glittering client roster and top-of-the-market compensation, and it’s easy to make a case for staying at Bain for the long term.

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10.60% of Votes

2024 Ranking

#8

Bain & Company
#9

General Dynamics Information Technology

General Dynamics is a publicly traded aerospace and defense corporation and one of the largest defense contractors to the U.S. government.

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9.15% of Votes

2024 Ranking

#11

General Dynamics Information Technology
#10

Accenture

Accenture works at the intersection of business and technology to help clients improve performance and create sustainable value for stakeholders. The company fosters a “culture of cultures,” where its people experience a sense of belonging and can be their best professionally and personally. Creating this inclusive workplace means ensuring people feel comfortable engaging in honest, open dialogue about difficult topics—such as bias and inclusion—without judgment or career limitation.

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8.32% of Votes

2024 Ranking

#10

Accenture
#11

Deloitte Consulting LLP

Deloitte is a global provider of audit, tax, risk and financial advisory, and consulting. Services include everything from technology transformation and implementation to corporate strategy; marketing and sales growth solutions (also known as Deloitte Digital); mergers and acquisitions; human capital change management; manufacturing operations including supply chain; financial management; and sustainability, climate, and equity solutions.

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7.48% of Votes

2024 Ranking

#9

Deloitte Consulting LLP
#12

IBM Global Business Services

IBM consultants help clients integrate strategy, process, technology and information to increase effectiveness, reduce costs and improve profit and shareholder value. IBM's services and consulting runs the gamut, from AI and automation to big data to networking and cloud services, and more. They've invested heavily in AI. IBM's portfolio of business-ready tools, applications and solutions are designed to reduce the costs and hurdles of AI adoption while optimizing outcomes and responsible use of AI.

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7.07% of Votes

2024 Ranking

#13

IBM Global Business Services
#13

Oliver Wyman

Oliver Wyman is a firm in a hurry at present, rapidly adding headcount through hiring and acquisition to cope with a deluge of work. Consistently recognized throughout the industry as a “Best Place to Work”, the firm promises an “environment where exceptional people can thrive.” A large consultancy whose reach spans five continents, Oliver Wyman strives to provide its people with an entrepreneurial, non-hierarchical culture where talent people work alongside one another on complex, high-visibility client engagements. Go-getters who enjoy early responsibility and a fast-paced, driven environment will do well here.

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5.20% of Votes

2024 Ranking

#14

Oliver Wyman
#14

KPMG LLP (Advisory)

One of the most recognized names in global business, KPMG is a multinational professional services network and one of the Big Four accounting firms. Organized as a network of firms that each bring services to clients, KPMG spans strategy and operations, analytics, business integration, business intelligence, business process management, change management, growth enablement, integrated business planning, organizational design, outsourcing, shared services, talent management, technology enablement, and transformation. On the risk management side, they offer advisory services in financial risk management, forensic, internal audit, risk and compliance, and IT. Mainly, however, they are known for and specialize in auditing, internal audit, accounting, forensic accounting, compliance, corporate recovery, assurance, tax, risk management, and financial advisory services.

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4.99% of Votes

2024 Ranking

#12

KPMG LLP (Advisory)
#15

PwC Consulting Solutions/Strategy&

PwC Consulting Services integrates functional knowledge across the globe to help clients address their most challenging business problems. The firm has the opportunities, mentorship, and technology to help take your career to the next level. Becoming a consultant at PwC will allow you to develop deeper expertise in your area of focus and establish yourself as a leader.

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4.57% of Votes

2024 Ranking

#17

PwC Consulting Solutions/Strategy&
#16

Alvarez & Marsal

A&M provides global leadership, problem-solving, and value creation for companies across industries and around the world. The firm’s consultants work as advisers, interim leaders, and partners who tell clients what they need to know, not always what they want to hear. The firm is focused on practical, action-oriented advice for its clients, rather than theoretical.

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4.16% of Votes

2024 Ranking

#Not Ranked

Alvarez & Marsal
#17

Kearney

Kearney—one of the original global management consulting firms—has long specialized in operations and supports clients through large transformations. The firm works with more than three-quarters of the Fortune Global 500, as well as governmental and nonprofit organizations. A solidly midsize firm with a strong international reputation, Kearney is poised to offer consultants the best of both worlds: the flexibility and opportunities for exposure of a boutique supported by the infrastructure of a much larger firm. The result is a great balance of collaboration and independence—the benefits of scale with the ability to individualize.

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3.95% of Votes

2024 Ranking

#15

Kearney
#18

Science Applications International Corporation (SAIC)

Science Applications International Corporation (SAIC) is an American company that provides government services and information technology support. SAIC's services span the defense, space, civilian, and intelligence markets and include secure high-end solutions in engineering, IT modernization, and mission solutions. In their own words, SAIC delivers innovative, effective, and efficient solutions that are critical to achieving customers' missions.

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3.33% of Votes

2024 Ranking

#16

Science Applications International Corporation (SAIC)
#19

Infosys Consulting

Infosys Consulting is a multinational information technology company that provides business consulting, information technology, and outsourcing services to clients in 50 countries. The company serves clients across a wide range of industries, including telecom, retail, financial services, resources, automotive, tech, industrial manufacturing, oil and gas, utilities, insurance, and more. It specializes in digital transformation through global enterprise solutions, including AI.

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2.91% of Votes

2024 Ranking

#19

Infosys Consulting
#19

Tata Consultancy Services

Tata Consultancy Services (TCS) is a global provider of IT services, business solutions, and outsourcing. Through its network delivery model, TCS offers services in e-business, application development and maintenance, architecture and technology consulting, engineering, security, infrastructure development and management services. Industries include communications and information technology, engineering, materials, services, energy, consumer products and chemicals.

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2.91% of Votes

2024 Ranking

#18

Tata Consultancy Services