Ace Coffee Bar, Inc. ofAce Coffee Bar, Inc. is the largest independent food service company in the state of Illinois and Northwest Indiana. We are a family-run business that places great importance upon understanding our customers’ individual needs. Recently we have moved into a new state- of-the-art, 385,000 sq. ft., facility in Streamwood, Illinois. Our new location will allow us to expand and better serve our customers.fers a vaety of professional services.