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19900 Macarthur Boulevard, Suite 100Irvine, CA 92612


SOI is a Professional Employer Organization. And it's a one-stop service provider that allows business owners to concentrate on running their businesses without getting bogged down in administrative headaches. It also allows them to provide employees with benefits that would normally only be available at much larger companies.
PEOs, through the co-employment model, become the legal "employer of record" for employment and benefits purposes, thereby assuming many of the responsibilities and.. liabilities present in every business.
Employees on a PEO's payroll are able to participate in the PEO's health, retirement, and supplemental benefits and are covered by their workers' compensation policy, so you don't have to worry about making these complex arrangements. The PEO also takes care of the payroll, including everything from printing the checks to reporting and paying the employment taxes. Additionally, the PEO provides human resources and compliance expertise. All while you remain completely in control of your product and day-to-day business operations.
Active in the professional employer services industry since 1990, SOI has emerged as one of the leading PEOs in the United States. For small and medium-sized employers in select industries, we serve as a trusted partner and function as a comprehensive, integrated human resource department. Our concept facilitates our customers' access to beneficial resources and connections to "blue-chip" service providers otherwise out of reach. Our team of skilled professionals provides expertise in human resources and compliance, risk management, employee benefits, payroll processing, and information technologies.
SOI is based in Charlotte, North Carolina and supports tens of thousands of worksite employees within our customer locations throughout the United States.


Business details

Firm Size

  • 50 - 100 employees
  • Less than 10 employees

Client Size

  • Medium-sized Businesses
  • Small Business


  • Human Resources
  • Medical
  • Risk Management

Hours of Operation

  • MON
  • 9:00am
  • 5:00pm
  • TUE
  • 9:00am
  • 5:00pm
  • WED
  • 9:00am
  • 5:00pm
  • THU
  • 9:00am
  • 5:00pm
  • FRI
  • 9:00am
  • 5:00pm
  • SAT
  • SUN

Languages Spoken

  • English
  • Spanish


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