12. Concentrations

Revenues from the Company’s services to a limited number of customers have accounted for a substantial percentage of the Company’s total revenues. For the three months ended March 31, 2015, the Company’s two largest customers, Tiburon, Inc. (“Tiburon”) a reseller, and Ohio State Highway Patrol (“OSHP”) a direct end user, accounted for 15% and 8%, respectively, of the Company’s revenue for that period. For the three months ended March 31, 2014, the Company’s two largest customers, Tiburon, Inc. (“Tiburon”) and CareWorks, which are both Resellers, accounted for 15% and 7%, respectively, of the Company’s revenue for that period.

For the three months ended March 31, 2015 and 2014, government contracts represented approximately 45% and 44% of the Company’s net revenues, respectively. A significant portion of the Company’s sales to Tiburon and Lexmark represent ultimate sales to government agencies.

As of March 31, 2015, accounts receivable concentrations from the Company’s four largest customers were 18%, 15%, 11% and 10% of gross accounts receivable, respectively, and as of December 31, 2014, accounts receivable concentrations from the Company’s four largest customers were 23%, 21%, 13% and 10% of gross accounts receivable, respectively. Accounts receivable balances from the Company’s four largest customers at March 31, 2015 have since been partially collected.