This is a list of notable former consulting firms.
Former design and engineering consulting firms Birdsall Services Group Hyder Consulting Merz & McLellan Parkman Group Sinclair Knight Merz
Former industrial design firms Lunar DesignMcKinsey acquires design firm Lunar for digital transformation
Former digital and IT consulting firms American Management Systems Cambridge Technology Partners American Management Systems Computer Sciences Corporation Covansys Corporation Diamond Management & Technology Consultants Hitachi Consulting Logica MarchFirst Mahindra Satyam Perot Systems Razorfish Sapient Consulting SapientNitro SapientRazorfish Scient USWeb Viant Whittman-Hart
Former cyber security consulting firms Mandiant
Former economics consulting firms Data Resources Wharton Econometric Forecasting Associates
Former human resource consulting firms Towers Perrin Watson Wyatt Worldwide
Former management consulting firms Andersen Consulting Arthur Andersen Mercer Management Consulting Monitor Navigant Consulting Sweett Group
Former political consulting firms Cambridge Analytica
Former research and analysis firms Business International Corporation CNW Marketing Research Compete.com Data Resources Inc. EcoWin Global Business Network Micropal Research International Wharton Econometric Forecasting Associates Yankee Group
Former risk management consulting firms Towers Watson
References
List of former consulting firms