About SOI

About SOI

SOI is one of the nation’s leading Professional Employer Organizations (PEOs). With clients in all 50 states representing more than $1 billion in annual payroll, and having been in business on a national basis since 1990, SOI is one of the largest and most tenured PEOs in the country. SOI delivers state of the art human resources and risk management solutions to our clients, along with “best of breed” partners that small and medium-sized businesses may not be able to access on their own. SOI seeks to become a trusted member of our clients’ strategic teams, aligning our services to help our clients fulfill their visions.

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