A PEO is a Professional Employer Organization, also commonly referred to as a staff leasing company.  The PEO concept is simple...by allowing the PEO to establish a co-employment relationship with your workers, employer responsibilities can be shared between you and the PEO.  You focus on growing your business and most importantly increasing revenue.  The PEO, on the other hand, takes care of the non-revenue producing areas of your business including:  Payroll Administration, Benefits Administration, Risk Management, Human Resources.