Cushman & Wakefield and OUE Ltd. announced that global insurance firm Marsh & McLennan Cos. has signed a 15-year lease at downtown’s U.S. Bank Tower. The tenant will occupy 72,000 square feet on floors 11 through 14 of the iconic skyscraper.

Marsh & McLennan was represented by Jeffrey Welch, Lynn Williams, and Michael Hartwick from CBRE. The landlord, Singapore’s OUE, was represented by John Eichler, Peter Collins, and Tyler Stark with Cushman & Wakefield.

The office tower, at 633 W. Fifth St., has more than 1.4 million square feet of Class A space in its 75 stories. The building’s lobby, observation deck, and event space on the 69th and 70th floors were recently renovated.