Superior Air-Ground Ambulance Services, Inc. operates more than 130 ambulances in the Chicagoland area and 30 in Northwest Indiana, making it the largest independently owned and operated Emergency Medical Services provider in Illinois.  Of the 130 ambulances in service every day, 40 are Advanced Life Support, 10 are Critical Care, 70 provide Basic Life Support and 5 service bariatric patients. 

Superior provides Emergency Medical Services to more than 500 events every year, including Northwestern University sports events, Chicago Cubs games at Wrigley Field, sports and other events at US Cellular Field, Chicago Bears football games, McCormick Place, the Chicago Marathon, Susan G. Komen 3-Day for the Cure, and The Avon Walk for Breast Cancer.