List of former consulting firms

• Birdsall Services Group • Hyder Consulting • Merz & McLellan • Parkman Group • Sinclair Knight Merz Former industrial design firms • Lunar Design ==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 ==