What is a Professional Employer Organization? Learn more by watching this animation.![]()

Are you ready to Gain an Edge?
For more than a decade, Extensis has been providing customized, innovative, cost-effective solutions for human resource management and regulatory compliance, supported by a passionate philosophy of "extreme service." We improve the management of a workforce by simplifying back-office administrative functions, including human resources, payroll, employee benefits and risk management services.
We offer the SCALE of a national provider, while providing the SERVICE of the leading regional Professional Employer Organization. We know this marketplace.
Simply put, our team of professionals has the comprehensive HR and innovative benefits solutions necessary to efficiently and effectively manage a workforce, from human resources, employee administration and payroll, to benefits and risk management services. We handle these functions with the same level of excellence, accountability, responsiveness and passion with which we manage our own "back office." The way we see it, the success of our clients’ businesses is our business.
As a result, our clients are free to focus their time and energy on the core areas of their businesses. Burdensome employee administrative duties are placed in the hands of trained professionals with the expertise, resources and regulatory know-how to manage them efficiently and with all due diligence.
Clients Talk
Learn how Steve Byszewski, President of SESI Consulting Engineers gains an edge with Extensis. Watch Movie![]()




