Willis

London, UK, April 27, 2011 – Willis Group Holdings (NYSE: WSH), the global insurance broker, today announced that Gianmarco Tosti has been appointed CEO, Willis Facultative London, effective immediately.

In this newly-created role, Tosti will lead a team of 50 Associates responsible for the placement of international facultative reinsurance business into the London and international market on behalf of insurance company clients.

He will work alongside the CEOs of Willis Facultative’s key regions including: Matt Keeping (Global & North America), Antonio Tosti (Europe), Hugh Powell (Latin America) and Duncan Stockley (Asia Pacific). As CEO, Facultative London, Tosti will report into Willis Executive Committee member, Dominic Samengo-Turner.

Tosti joined Willis in 2006 as the head of Southern Europe for Global Markets International. In 2009, he was appointed to his most recent position, Managing Director, Facultative International. Before Willis, Tosti was at Aon Re Italy for 11 years where he was a member of the Board and was responsible for the facultative non-marine division.

Commenting on the appointment, Mr. Samengo-Turner said, “With floods wreaking havoc in Australia and Brazil and major earthquakes devastating parts of Japan and New Zealand, the facultative market is facing a time of unprecedented challenges. We have established a strong team comprising of experts like Gianmarco in key locations around the world to help our insurance company customers respond proactively and not reactively to future catastrophes.”

Matt Keeping, CEO Willis Facultative Global & North America said, “London continues to be at the forefront of the facultative market in terms of capacity and ingenuity. To have a talented leader like Gianmarco in this new position is recognition of his dedication to our global clients and professionalism with the markets. His team will continue to provide our international clients with seamless access to reinsurers for the world’s largest and most complicated risks.”

Willis Group Holdings plc is a leading global insurance broker. Through its subsidiaries, Willis develops and delivers professional insurance, reinsurance, risk management, financial and human resource consulting and actuarial services to corporations, public entities and institutions around the world. Willis has more than 400 offices in nearly 120 countries, with a global team of approximately 17,000 employees serving clients in virtually every part of the world. Additional information on Willis may be found at www.willis.com.