Aon Center (Chicago) the world headquarters of Aon and Amoco. Aon's US operations are still headquartered here. The building is also the co-headquarters of Kraft Heinz. The Standard Oil Building was constructed as the new headquarters of the Standard Oil Company of Indiana, which had previously been housed at South Michigan Avenue and East 9th Street. When it was completed in 1973, it was the tallest building in Chicago and the fourth-tallest in the world, earning it the nickname "Big Stan". (A year later, the Sears Tower took the title as Chicago's and world's tallest.) The building employs a tubular steel-framed structural system
Sears Canada of Distinctive Appliances and the sale was due to be completed in December 2017. The headquarters were in Downtown Toronto, inside an eight-story complex which was formerly the home to Sears' flagship location within the Toronto Eaton Centre until 2014. The headquarters moved there from 222 Jarvis Street after that building was sold in 2007. The lower four floors of the Eaton Centre location remained in use for retail, including a three-floor Nordstrom store from fall 2016 onwards, while the upper four floors continued as Sears Canada headquarters. This headquarters remained active until the retailer completed liquidation on January 14,