Based in Zurich, Siero is charged with driving the further growth of RBC Dexia’s operations in the Alpine state, along with managing the firm’s regulatory relationships in the country. He reports to Simon Shapland, head of sales and distribution for Continental Europe.

Siero has been with RBC Dexia since 2008, with his most recent role being that of director of relationship management in Luxembourg, focusing in particular on large multi-market clients. Prior to joining RBC Dexia he held several senior positions within Citigroup’s global transaction services arm.

"His appointment is a reflection of our commitment to the Swiss market, where we provide both onshore and offshore services to the leading asset managers in this important financial centre. Marco will support RBC Dexia's growing client base, bringing a significant depth of industry knowledge and expertise to future and existing clients,” Shapland said in a statement.

RBC Dexia Investor Services currently employs 5,300 staff across 16 markets and has some $2.5 trillion in client assets under administration.