 The firm had an influential client list, including corporations such as 3M, Citicorp, Proctor & Gamble, "The New York Times", and Xerox.It was acquired by Marsh & McLennan in 2000 and renamed "Mercer Delta".Mercer Delta Consulting maintained its speciality in leadership and organizational change, growing through further acquisitions of Canadian Johnston Smith International, French Change Management Consultants, Spanish c.r.m.