Sylvia Pozezanac

Leadership Profile

Sylvia Pozezanac

President and CEO, UK

Sylvia Pozezanac is Mercer's UK CEO and a member of Mercer's Executive Leadership Team. She is also chair of the Marsh & McLennan UK board and a director of Mercer Limited (UK).

Sylvia's career spans more than 30 years, across the consulting industry and the insurer/asset management provider side. An experienced senior executive, Sylvia has held leadership roles in the UK, the US and Canada, in both regulated and non-regulated entities.


Since joining Mercer in May 2019, Sylvia has successfully led Mercer's UK integration of the acquired JLT employee benefits operations, and has driven strong continued business performance. 

Prior to joining Mercer, Sylvia spent six years at Prudential Financial in the US, most recently as Senior Managing Director for Prudential Client Management, leading Prudential's strategic C-suite global financial partner and key client engagement program. Prior to this, Sylvia spent 26 years at predecessor organizations of Willis Towers Watson. During that time, she held several leadership roles spanning its Retirement and Risk businesses in multiple geographies across the US and Canada, including leading Towers Perrin's pension de-risking business, as well as the sales and marketing organization for Retirement North America following the Towers Perrin and Watson Wyatt merger.

Sylvia has a bachelor of sciences, mathematics, from Concordia University, Canada, and is a Fellow of the Society of Actuaries and an Enrolled Actuary under ERISA.