Allstate Arena, a privately owned entity headquartered in US, was founded in 1995 with approximately 20 employees and reported $1.9M in revenue as of 2023. The company operates a multi-purpose arena located in Rosemont, Illinois, United States, northwest of Chicago, specifically at the corner of Mannheim Road and Lunt Avenue, north of Mannheim Road's interchange with the Jane Addams Memorial Tollway (I-90) and approximately 3 miles north of O'Hare International Airport. Originally opened in 1980 as the Rosemont Horizon, the facility is designed to seat up to 22,000 for concerts, 17,500 for basketball events, 16,692 for ice hockey, and 16,143 for arena football.