Meet The Staff


Chuck Manthey - President:

From Estimator to Assistant General Manager to President, Chuck Manthey has been employed with Sentinel Printing since 1981. As an owner of Sentinel Printing for the past 20 years, Chuck has been able to use his analytical and practical skills to build a reputable and successful printing company in St. Cloud, MN. Being directly involved in exciting changes at Sentinel over the past 31 years, weathering the challenges of the industry, and cultivating strong relationships with employees, customers, and vendors is what keeps Chuck as an active participant in the everyday events of this growing company. In his leisure time Chuck enjoys spending time with his wife Cheryl, as they attend the never-ending activities of their two high school aged boys. When the schedule allows you can find Chuck on the golf course or bow hunting in the woods near his home.

Doug Walter – Vice President/Sales Manager:
As an owner of Sentinel Printing for the past 20 years, Doug approaches each opportunity Sentinel is given with a creative and consultative approach while maintaining a keen appreciation of the complexities that each project offers. Originally a Web Press Operator, Doug has since held key leadership positions in the company as General Manager and Sales Manager. For over 24 years, Doug has provided knowledge based leadership from both an analytical and mechanical mindset with an unending pursuit and focus on customer care. In his leisure time, Doug enjoys spending time with his wife and three children while participating in a variety of outdoor activities.

Deb Finley – Operations Manager:
Sentinel’s Operations Manager, Deb Finley, brings her printing expertise and experience as a Production Scheduler with her to this management position. She has enjoyed the challenges and rewards the past 14 years that Sentinel has given her and looks forward to what new opportunities she can offer the customers of Sentinel Printing. Determination in achieving customer’s goals is what makes Deb such a valuable asset to Sentinel. In her free time you can find Deb enjoying some of her favorite hobbies; camping, reading and antiquing.

Account Executives

Greg Harren:
As a Sentinel Sales Representative and part owner, Greg Harren has a stake in the success of Sentinel’s customers. With 20+ years of working closely with customers and giving them the dedicated attention they deserve, he has earned the reputation of being trustworthy and reliable. Once you have worked with Greg, it is easy to see why he has so many loyal customers that trust Greg and Sentinel Printing for their printing needs. When not at work, Greg, with his wife Sue, enjoy watching their sons participate in athletic events and are actively involved in their community. 


Customer Service

Denise Rossman:
As a Customer Service Rep at Sentinel, Denise has been assisting customers in achieving a great quality product while providing them knowledge of the printing process for the past 21 years.  With 30+ years in the industry, Denise’s unique perspective on printing challenges comes from working in many different areas of the industry.  These experiences have helped her excel in customer service in communicating with and helping customers with all of their printing questions and needs.  As a local native, Denise grew up in the St Cloud area and enjoys relaxing times at the lake and riding her motorcycle with her husband.

Don Austreng:
Don comes to Sentinel Printing with over 25+ years of experience in the printing industry.  Don began his printing career as a sheet fed press operator.  Over 19 years ago Don decided to leave the production floor and transfer into Customer Service.  Along the way, Don has gained experience in various production and information systems and has helped write numerous processes as the technology within the printing industry evolved. He knows his stuff! Away from the job, Don enjoys spending time with and traveling with his wife, Kathy.  Don enjoys golfing and hunting and is a self-professed “Reality TV Fanatic”.

Tony Schreiber:
In the 7 years that Tony has been with Sentinel Printing, his skills and knowledge of the printing industry has found him to be a tremendous asset to the company.  With his exceptional computer skills and attention to quality and detail he is a perfect fit as our Mailing and Project Coordinator. In his free time away from work, Tony enjoys the outdoors; playing disk golf, basketball and expressing his culinary talents on the grill. Working with Tony is a joy as he is dedicated to his work and he has a fun free spirit.

Brenda Preusser:
With over 20 years of working in the printing industry, Brenda has a variety of experience ranging from prepress, customer service, estimating and production.  She started at Sentinel Printing in 2007 in the Estimating Department, and now applies her extensive printing knowledge and communication skills to helping customers in our Customer Service Department.  She takes pride in delivering to her customers a quality product.  Brenda and her husband Don are the proud parents of three grown children. Aside from family functions, Brenda enjoys traveling, golfing, reading, watching the MN Wild, Twins, Vikings and SCSU hockey.