Marsh & McLennan Companies Commences Cash Tender Offers for Outstanding 5.375% Notes Due 2014 and 5.750% Notes Due 2015

Marsh & McLennan Companies MMC announced today that it has commenced cash tender offers for up to a total of $500,000,000 aggregate principal amount of its outstanding 5.375% Notes due 2014 and its 5.750% Notes due 2015. The principal amount of all Notes that may be purchased pursuant to the Tender Offers will not exceed $500,000,000 and the principal amount of each series of Notes that may be purchased pursuant to the Tender Offers will not exceed the applicable maximum amount set forth in the table below, which the Company may, at its sole discretion, increase (with respect to each series of Notes, the “Series Maximum Tender Amount”). The terms and conditions of the Tender Offers are set forth in the Company's Offer to Purchase dated June 27, 2011, and the related Letter of Transmittal.