Strategy Team


Our strategy team is an integral part of who we are as a company. With diverse backgrounds and decades of industry experience, our leadership team comes to the table ready to work diligently to support our partners and clients. 


Roy Seeger, CRP, GMS

President & CEO


Mr. Seeger joined AECC in 1995 and through his transformative leadership and innovation has led the expansion of AECC’s financial services programs developing their highly respected programs and operations to what they are today. Under his vision and leadership, the company has experienced over 200% top line revenue growth by the addition of new products and modifying operating structure. He earned his bachelor’s degree from the University of Northern Colorado in 1988 and earned his CRP and GMS designations from Worldwide ERC®. He served as both Director and Vice President of Financial Services before his promotion to President in 2005 & President & CEO in 2017. He is the son of AECC’s founder Herbert Seeger and is currently a member of the American Payroll Association, the Society for Human Resource Management, and Worldwide ERC®.


Leadership Team


Involved in relocation since 1981, Craig holds a BS in Accounting from DePaul University, a CPA accreditation, and an Illinois Real Estate Broker’s License.  Craig achieved Worldwide ERC® designations, SCRP & SGMS, as well as the Meritorious Service Award and is a three-time recipient of ERC’s Distinguished Service Award. Craig is a member of several ERC Forums, and is a past Chair of the Global Tax Forum.  In 2016, Craig was the recipient of the Sandra M. Welbourn Service Award from the Corporate Relocation Council in recognition of his contribution to the relocation industry.

Catherine Killeen, CRP, GMS

Vice President, Operations


Catherine holds a Bachelor’s degree from Illinois State University. She began her mobility career in 1995 and held various roles with major relocation management companies in the areas of Client Services, Cost Management, and Global Compensation Services. She joined AECC in 2014 as the Director of Global Services, becoming Vice President of Financial Services in 2017.  In her current role of  Vice President, Operations, Catherine is responsible for management of AECC’s front line personnel and the end delivery of services we provide to transferees, assignees, and candidates. She has achieved the Worldwide ERC® designations of CRP and GMS.

Jeff Stoltzner

Vice President, Accounting


Jeff earned his Bachelor of Science in Accounting from Elmhurst College in Illinois and has 30 years of accounting experience within the relocation industry. After starting his AECC career as a Staff Accountant in 1992, he quickly rose through the ranks of the accounting department and in 2007 became Vice President, Accounting. In this role, Jeff  has responsibility over the corporate financial functions of the company, including accounting, payroll, and company infrastructure.

Erin Knauss, CRP, GMS

Vice President, Client Services


Erin joined AECC in 2004, as a Domestic Expense Specialist. Throughout her tenure at AECC, she has meticulously climbed the ranks, learning all aspects of AECC’s Expense Management Program including Client Billing Services, Payroll Reporting, and Client Implementations.  Erin served as Manager of the Expense Management Department and Director of Financial Services before being promoted to Vice President, Client Services.  Erin holds her CRP and GMS certification from Worldwide ERC® and currently oversees the client and partner implementation process and systems onboarding, as well as managing delivery of client reporting and billing.


Managers/Team Leads

  • Tammy Possidoni, CRP, GMS - Manager, Financial Services
  • Kary Dunning, CRP - Senior Closing Specialist
  • Linda Wilke - Manager, Accounting
  • Andrew Schurman - Data Analytics & Reporting Specialist