Group Management Services (GMS) is a full-service professional employer organization and TPA. We make employee management simpler, safer, and stronger. Learn more.

Human Resources

GMS' headquarters in Richfield, OH, United States

Mike Kahoe

Brett Kowalski

Adam Weissberg

Shannon Stephens

Phr-Shrm-Cp Sharee' Andrade

Beth Kohmann

Thomas Amato

David Swift

Stacey Larotonda

Sales Team

Human Resources & Payroll

Client Services and Account Management

Sales and Client Management

Leadership Team

Human Resources and Training

GMS

Org chart

Teams