Paychex, Inc. is a recognized leader in the payroll, human resource, and benefits outsourcing industry. The company was founded in 1971 and has more than 12,000 employees serving more than half a million small- to medium-sized businesses in the US. The company has more than 100 offices serving approximately 567,000 payroll clients and 9.6 million employees in the US and Germany.

In Brazil since 2013 though a joint-venture, Paychex and Semco are targeting Brazilian small and middle companies below 100 employees offering comprehensive payroll services, including payroll processing, payroll tax administration, and employee pay services.