Our Members

Erin Siemens

Chief Customer Officer


Erin leads Up-Market Client Success Management for ADP. Her team of more than 200 Client Success professionals are responsible for making ADP’s largest HCM clients wildly successful. Erin is also responsible for development and execution of business unit strategy as a member of the National Accounts Senior Leadership Team. Erin joined ADP in 2007 and held leadership roles in Implementation, Client Service and General Management.  Prior to ADP, Erin worked in various roles delivering technology solutions to companies of all sizes and industries. She’s helped start-up organizations scale, and she has built global delivery models for established organizations. She has a BA in English from Arizona State University and an MBA from the Ross School of Business at The University of Michigan. She is a certified Professional in Human Resources, currently serves as a member of ADP’s Women in Leadership Board and is Executive Sponsor for the Chicago Chapter of ADP’s LGBTQ Business Resource Group, PRIDE. Erin is engaged in supporting the American Heart Association’s many efforts in her community, including acting as Executive Sponsor for ADP’s annual Chicago Heart Walk for the last five years. Erin and her husband live in a suburb of Chicago with their two children, ages 10 and 13.