The consulting landscape in the United States is home to some of the world’s most influential top consulting firms, providing expertise across various industries such as technology, financial services, HR, and management. These companies have built strong reputations and drive billions in revenue annually, steering corporate strategies and driving innovation. Many of these firms offer a wide range of services, including strategy consulting to help clients navigate complex challenges.

As of 2024, the following consulting companies are leading the charge in revenue generation across the USA. These top 10 firms are making significant contributions to the global consulting industry, valued at USD 6.02 trillion.

Deloitte is by far the highest revenue-generating consulting firm in the US. However, since Deloitte is not publicly traded, there isn’t real-time data available to compare it directly with the other firms on this list.

Below are the top 10 publically traded consulting firms in the USA.

1. Marsh & McLennan Companies

• Industry: Insurance Brokering & Risk Management
• Yearly Revenue: $23.63 B
• Location: New York, NY
• Tagline: "The Global Leader in Professional Services"

2. Cognizant Technology Solutions

• Industry: IT
• Yearly Revenue: $19.26 B
• Location: New Jersey
• Tagline: "Intuition Engineered"

3. Automatic Data Processing (ADP)

• Industry: HR & Payroll Services
• Yearly Revenue: $19.20 B
• Location: New Jersey
• Tagline: "Always Designing for People"

4. ManpowerGroup

• Industry: HR Consulting
• Yearly Revenue: $18.56 B
• Location: Wisconsin
• Tagline: "Powering the Future of Work"

5. Jacobs Engineering

• Industry: Engineering Consulting
• Yearly Revenue: $16.94 B
• Location: Texas
• Tagline: "Challenging Today. Reinventing Tomorrow."

6. IQVIA

• Industry: Life Sciences & Healthcare Consulting
• Yearly Revenue: $15.15 B
• Location: North Carolina
• Tagline: "Advancing Healthcare Through Data and Technology"

7. Omnicom

• Industry: Marketing & Communications Consulting
• Yearly Revenue: $15.12 B
• Location: New York, NY
• Tagline: "Creating the Future of Advertising"

8. DXC Technology

• Industry: IT Consulting
• Yearly Revenue: $13.45 B
• Location: Virginia
• Tagline: "Global IT Services and Consulting Leader"

9. Booz Allen Hamilton

• Industry: Management & Technology Consulting
• Yearly Revenue: $10.94 B
• Location: Virginia
• Tagline: "Empower People to Change the World"

10. Insight Enterprises

• Industry: IT Consulting
• Yearly Revenue: $9.04 B
• Location: Arizona
• Tagline: "Accelerate Your Digital Journey"

Summary

The United States remains the leader in terms of the size and revenue of consulting firms. Most of the world's top consulting firms are either based in the U.S. or have their largest operations there. Despite not all being based in the U.S., the Big Four accounting and management consulting firms—Deloitte, PwC, EY, and KPMG—all have significant operations in the U.S., and many of them generate the largest share of their revenue from their U.S. divisions.

Many of these firms offer cutting-edge solutions to help clients across a variety of industries, including consumer goods, healthcare, and private equity, focusing on growth strategy and other innovative solutions.

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