Consulting firms in California

Bain & Company is a global management consulting firm headquartered in Boston, Massachusetts. It provides advisory services to businesses, nonprofit organizations, and governments, and is one of the Big Three management consulting firms. The CEO is Bob Bechek and the CFO is Len Banos. Bain has 53 offices in 34 countries and 5,700 employees.

BDO Global is a worldwide professional services network of public accountancy firms, serving national and international clients. Each BDO Member Firm is an independent legal entity in its own country. The network, originally formed in 1963 as Binder Seidman International Group, is coordinated by BDO Global Coordination B.V., with an office in Brussels, Belgium. The name BDO, first devised in 1973, is an acronym of Binder Dijker Otte & Co.

Booz Allen Hamilton Inc. NYSE: BAH, or more commonly Booz Allen, is an American public consulting firm headquartered in McLean, Fairfax County, Virginia, with 80 other offices throughout the United States. Ralph Shrader is its Chairman and Chief Executive Officer. The firm was founded by Edwin Booz in Chicago circa 1914. It is listed as number 438 in the 2011 Fortune 500.

Bristlecone helps clients maximize the strategic value of their supply chains with services ranging from supply chain strategy and network design to supply chain system implementations.

Buck Consultants is a global HR benefits and human resource consulting firm.

Campbell Alliance is a specialized management consulting firm that serves the pharmaceutical and biotechnology industry. The firm is privately owned and was founded in 1997 by a former executive of GlaxoWellcome.

Cask began by offering consulting services focused on strategic planning and procurement management for telecommunications technology and have since expanded into other areas of the project and technology life cycle.

CGI Group Inc. is an information technology management and business process services company. Founded in 1976 and headquartered in Montreal, Canada, CGI employs approximately 31,000 professionals in over 125 offices in 16 countries. As of September 2010, CGI had an annual revenue of CA $3.7 billion.

CherryRoad Technologies Inc. provides systems integration and consulting services and is an Oracle Platinum Partner

Cliff Consulting provides services in project management, in the assessment, design, and implementation of improvements to business operations and in the implementation of information technology.

Command Consulting Group is an international security and intelligence consulting firm headquartered in Washington, D.C.. CCG provides advisory services for governments, corporations, and high net worth private individuals.

Conduit Consulting LLC is a management consulting firm that provides transaction advisory support, business valuations, proposal writing, negotiation and mediation services and program management services.

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.