Risk management, security consultant sold

Duff & Phelps Corp., a valuation and corporate finance adviser, said Tuesday it has signed an agreement with Corporate Risk Holdings L.L.C. to acquire corporate investigations and risk consulting firm Kroll Inc.

Terms of the transaction were not disclosed. Duff & Phelps, Corporate Risk Holdings and Kroll are all based in New York.

The deal is expected to close during the second quarter of the year, subject to customary closing conditions and regulatory approval, Duff & Phelps said in a statement.

Among other things, Kroll specializes in offering risk management and security services, including cyber security, to organizations.

The combined organization will have nearly 3,500 employees in 28 countries.