Macquarie Group, an international provider of banking, financial, advisory and investment services, has renewed and expanded its leased space at 125 West 55th St. in Manhattan. The firm currently occupies 100,000 square feet, and will expand its occupied space to 260,000 square feet under the expansion. Macquarie will now occupy an additional six floors, as well as part of the eighth and ground floors.The 23-story tower was built in 1989 by architect Edward Larrabee Barnes & Associates. Major tenants at the 590,000-square-foot building include Katz Media Group and Air France. Kuriloff and Robert Tanzmann, brokerage professionals from Cushman & Wakefield Inc., represented Macquarie Group in its site search and in lease negotiations with the building’s ownership, Boston Properties. Andrew Levin, senior vice president of Boston Properties’ New York Region, represented the owner. Macquarie Group is headquartered in Sydney, Australia, but operates in all major financial centers around the world.