Infinisource, a human capital management technology provider and portfolio company of Accel-KKR, has acquired Qqest from Unique Investment. The acquisition doubles the size of Infinisource, growing the company's customer base to more than 63,000. Infinisource offers a single application to track HR issues, payroll, time and attendance and benefits administration. Qqest, the acquired company, is the maker of time-and-attendance software TimeForce, and offers a range of services for time and attendance, payroll and human resource management. The combined company will become a single-source provider of workforce tools for small and medium employers. Accel-KKR acquired Infinisource in November 2011.