William H. Duff and George E. Phelps opened their firm Duff & Phelps in Chicago to provide investment research
1932
Sold credit rating and investment management business
1994
Acquired Standard & Poor's Corporate Value Consulting (included PwC's legacy valuation business)
2005
Acquired Chanin Capital Partners
2006
Acquired Rash & Associates
2007
Acquired Dubinsky & Company
Acquired Kane Reece Associates
Acquired Lumin Expert Group
2008
Acquired Cole & Partners
Acquired Dynamic Credit Partners' U.S. consulting business
Acquired June Consulting Group
2010
Acquired Growth Capital Partners
Acquired MCR
2011
Acquired Pagemill Partners
Acquired Harvester Forensics Limited
Acquired iEnvision Technology
Acquired CETERIS®
2012
Duff & Phelps transitioned from a public to private entity
2013
Acquired RSM Farrell Grant Sparks' Restructuring and Insolvency Division in Ireland
2014
Acquired Kinetic Partners
Acquired American Appraisal
2015
Acquired CounselWorks, LLC
Acquired Tregin Solutions
Acquired Corporate Finance Ireland (CFI)
Acquired Campbell Valuation Partners Ltd. and Veracap M&A International
2016
Acquired Quantera Global Asia Holding
Acquired by the Permira Funds
2017
Acquired Kroll from Corporate Risk Holdings
2018
Acquired Prime Clerk
Acquired Forest Partners
Acquired Heffler Claims Group
2019
Acquired RP Digital Security
Acquired Lucid Companies
Acquired by Global Investor Consortium
Acquired Verus Analytics
Acquired Borrelli Walsh
Acquired Blackrock Expert Services Group
2020
Kroll Announces Plan to Unify
Acquired Redscan
Acquired Security Compass Advisory
2021
Kroll Unifies Brand to Reflect Strategic Growth and Vision
Acquired Resolver, a Leader in Risk Intelligence Technology
Kroll Acquires Crisp, Trusted Provider of Real-time Risk Intelligence
2022
