According to our records, this business is located at 175 E Hawthorn Pkwy in Vernon Hills (in Lake County), Illinois 60061, the location GPS coordinates are: 42.241193 (latitude), -87.960789 (longitude). Proficient Business Systems is categorized under Computer Code Authors (SIC code 7371). Known organization vice president is Ashish Kathuria. Current estimates show that the unit has a sales volume of $1,570,000 and staff of approximately 10 people. You can contact the company by phone at (847) 281-4540; the following fax number is also provided: (847) 247-8471.