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About Proven Business Systems
Proven Business Systems provides office equipment, as well as document and print management solutions to our clients. We are family owned and operated, and are committed to excellence in servicing our customers and supporting our community. Owner and founder of Proven is John Cosich, a veteran of the office equipment industry. His knowledge and expertise along with Proven's management team have over 65 years combined experience in the industry.

Contact Us

Proven IT Tinley Park HQ
18450 Crossing Drive,Tinley Park, IL 60847
P: 708.614.1770

Proven IT Loop Office
155 N Wacker 37th Floor, Chicago, IL 60606
P: 312.582.2979

Proven IT Schaumburg Office
1900 E Gold Road Ste L20, Schaumburg, IL 60173
P: 224.267.6960

Proven IT Downers Grove
3051 Oak Grove Road Suite 107, Downers Grove, IL 60515
P: 630.386.4885

Proven IT Bourbonnais
1137 E 5000 N Road, Bourbonnais, IL 60914
P: 815.383.4567

Proven IT Joliet
821 Campus Drive, Joliet, IL 60435
P: 815.693.2204

Proven IT Lake Forest
100 N. Field Drive Suite 100, Lake Forest, IL 60045
P: 224.212.8501

Proven IT Portage
1575 Adler Circle Suite E-1, Portage, IN 46368
P: 224.212.8501

Proven IT Watseka
105 N. Second Street, Watseka, IL 60970
P: 815.383.4567