List of former consulting firms explained

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 Design^{[1] [2]}

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 Inc.
• Wharton Econometric Forecasting Associates

Former human resource consulting firms

• Towers Perrin
• Watson Wyatt Worldwide

Former management consulting firms

• Andersen Consulting^[3]
• Arthur Andersen
• Mercer Management Consulting
• Monitor^[4]
• 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

Notes and References

1. Web site: Consulting Giant McKinsey Buys Itself a Top Design Firm . 2015-05-14 . . https://web.archive.org/web/20230429124408/https://www.wired.com/2015/05/consulting-giant-mckinsey-bought-top-design-firm/ . 2023-04-29 . live .
2. https://www.zdnet.com/article/mckinsey-acquires-design-firm-lunar-for-digital-transformation/ McKinsey acquires design firm Lunar for digital transformation
3. News: Martin . Mitchell . 8 August 2000 . Arbitrator's Ruling Goes Against Accounting Arm : Consultants Win Battle Of Andersen . . . 25 March 2020.
4. News: Monitor Company files for Chapter 11; Deloitte to buy assets . Reuters . 8 November 2012 . 25 Mar 2020.