John Burns Construction Headquarters Kvadrat Showroom Fulton Market Vistex Headquarters Amenities Well Be Senior Medical Headquarters XO Marshmallow Cafe 900 N Michigan - Spec Suites Regency Tower - Spec Suites Oakbrook - Spec Suites Undisclosed Corporate Headquarters 311 S Wacker Dr - Undisclosed Tenant 225 W Washington - Spec Suites 311 S Wacker Dr - Elevator Lobby & Corridor