The following executive management team can be reached at our corporate offices:

(414) 263-3000
Toll Free (888) 513-9900
Business hours, 8am - 5pm CT

John Stewart – President & Chief Executive Officer
John started Food Services, Inc. more than 20 years ago here in Milwaukee, WI.  He takes an active role in the company seeing existing and new clients on a regular basis.  John is involved in all aspects of the company; financial, operational, personnel, and business development, as it continues to grow.  Prior to starting Food Services, Inc. in 1991, John has held executive positions with global food management companies.   John contributes to both civic and cultural organizations in the greater Milwaukee and Sarasota areas.  John is a graduate of Saint Louis University.

Lynn Sonnenberg – Chief Operating Officer 
Lynn has a wealth of knowledge in the food service management especially the College and University markets.  As the COO, Lynn is responsible for all day to day operations of the company and all divisions.  He ensures that the dining and vending programs are meeting the contract specifications and ensuring our clients and customers experience quality services.
Prior to joining Food Services, Inc. in 2007, Lynn was a Vice President and Regional Manager for a global food management company.  Lynn is a graduate of the University of Wisconsin La Crosse.

Tom Cooper, CPA- Chief Financial Officer
Tom is responsible for financial control and planning for Food Services, Inc.   He is also responsible for oversee the accounting department and working with other departments to achieve financial goals.   He has worked for Food Services, Inc. for more than 12 years.  He has operational understanding of multiple aspects of food service operations.  Tom is a graduate of the University of Wisconsin Milwaukee and is a Certified Public Accountant.

Robert Adamus, MS, RD – Vice President Sales
Bob is responsible for development of new clients for the company.  He has spent more than 20 years working all aspects of food service management.  He has a background in nutrition, conference center management, event planning and related services. Bob is a graduate of Cardinal Stritch University, MS from Case Western Reserve University, a Registered Dietitian and a member of the American Dietetic Association.  

Kate Sager, Marketing Director
Kate joins the FSI Food Services, Inc. team as the Director of Marketing.  She graduated with a degree in International Business and German from the University of Wisconsin – Eau Claire.  She has eight years of experience in the food service industry in various roles, most recently in a supervisory position.  Previously, she has worked as an Assistant Brand Manager for an International Dairy Company.  Her focus is on Brand Management, Promotions, Social Media, Merchandising, and Consumer Research.