James Wiener – Biography
Last update: March 23, 2026Executive profile
James Wiener joined Marsh McLennan in 1994.
James Wiener is currentlyPartner, Vice Chairman of Financial Services Practice at Oliver Wyman - View - Oliver Wyman org chart
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- At Oliver Wyman, James Wiener has 278 colleagues including Ted Moynihan (CEO), Huw van Steenis (Vice Chairman of the Board)…
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