BBH has appointed Sarah O’Donnell, a principal of the firm, as London office head and CEO for BBH in the UK. She will be responsible for the management and oversight of Brown Brothers Harriman Investor Services Ltd (BBH ISL), whilst retaining her responsibilities as head of client service in Europe, as well as director of the board and member of the audit and risk and compliance committees of BBH Fund Administration Services (BBH FAS), and member of the board of managers of Brown Brothers Harriman (Luxembourg) S.a.r.l. O’Donnell joined BBH in 1997 and has served as CEO of BBH FAS, head of client service in Ireland, and head of relationship management in London.