Top U.S. Consulting Firms

The Corporate Executive Board Company is a for-profit, publicly-traded firm that provides best practices research and analysis to business executives and professionals worldwide. CEB offers benchmarking datasets, decision-support tools, research briefs, and case studies, as well as executive forums and peer networking opportunities. CEB serves more than 80% of Fortune 500 corporations in more than 50 countries.

CSRA Inc. is an information technology services and solutions consulting company. It is headquartered in Fairfax, Virginia, and employs 7200 people worldwide.

Dalberg Global Development Advisors is a niche consultancy firm. Founded in 2001, the company specializes in global development and globalization and has coordinated several public-private partnerships.

Deloitte Touche Tohmatsu Limited /dəˈlɔɪt ˈtuːʃ toʊˈmɑːtsuː/, commonly referred to as Deloitte, is a multinational professional services firm headquartered in New York City in the United States.

Engility is an IT consulting firm based in Reston, Virginia that serves the US Federal Government.

Fair Isaac Corporation is a public company that provides analytics and decision making services including credit scoring intended to help financial services companies make complex, high-volume decisions.

Forrester Research is an independent technology and market research company that provides its clients with advice about technology's impact on business and consumers. Forrester Research has five research centers in the US: Cambridge, Massachusetts; New York, New York; San Francisco, California; Washington, D.C.; and Dallas, Texas. It offers a variety of services including syndicated research on technology as it relates to business, quantitative market research on consumer technology adoption as well as enterprise IT spending, research-based consulting and advisory services, events, workshops, teleconferences, and executive peer-networking programs.

Fujitsu Limited is a multinational information technology equipment and services company headquartered in Tokyo, Japan. It is the world's third-largest IT services provider measured by revenues.

Genpact Limited is a global business process and technology management company. It was formerly a GE owned company called GE Capital International Services or GECIS.

Giuliani Partners LLC is a management consulting and security consulting business founded by former New York City Mayor Rudolph Giuliani in January 2002.

Grant Thornton LLP encompasses the U.S. operations of Grant Thornton International, the largest accounting organizations outside of the Big Four. The member firms of Grant Thornton International comprise a network of 27,000 employees and 2,207 partners in more than 110 countries. Composite revenues of Grant Thornton International member firms in 2007 were $3.5 billion. Grant Thornton LLP is the U.S. member firm and the organization's largest, operating out of 50 offices with more than 5,000 employees and 499 partners.

Hitachi Consulting Corporation is an international management and technology consulting firm with headquarters in Dallas, Texas. It was founded in November 2000 as a subsidiary of the Japanese corporation Hitachi, and it currently employs approximately 6,500 people in the US, Japan, Brazil, China, India, Portugal, Singapore, Spain, the UK, Germany, and Vietnam.

The Huron Consulting Group, founded in 2002, is a global management consulting company offering services in the Healthcare, Education, Law, and Finance industries. As of year end 2010, Huron employed 1,558 full-time employees and generated $604.6 million in annual revenue.