Key Management

Dr. Charles E. Sizer, Founder and CEO

Chuck Sizer has had a distinguished and recognized food science career with a particular interest and experience in beverages and beverage packaging systems. He’s recognized both internationally and nationally; he’s managed the North American technical activities for the global food processing and packaging giant, Tetra Pak, as well as has been Director of the National Center for Food Safety and Technology at Illinois Institute of Technology. 

He completed his Masters and PhD in Food Science and Nutrition at Colorado State University in Fort Collins, Colorado. Since then he has worked for his entire career in the food industry. The knowledge of Food Science is his passion. He has been published over 110 times, has numerous awards including, most recently, a Director’s Special Citation Award from the FDA’s Center for Food Safety and Applied Nutrition. He currently holds 14 patents in food science related areas.


Collette Sizer, Founder and President

Collette Sizer has over 20 years’ experience in the food and ingredients business. With a Masters of Food Science and Nutrition from Colorado State University, she has worked for a division of Pillsbury (now General Mills) and most recently was Group Vice President of Sales and Business Development at SunOpta Ingredients. Her focus was on developing and executing business-to-business market strategies for value-added products. She has a proven track record of account development with Fortune 500 companies.

As President of Dairyvative™ Technologies and one of the Founders, Collette is heavily involved in every aspect of developing the business, with her focus being on commercial development, fundraising, human resources, and finance. She is looking forward to leading the growth of the Dairyvative™ Technologies team, particularly the technology commercialization, in the coming years.


Board of Directors

Paul Zeven

Paul has had a 40-year career at Philips Electronics, where he held President and CEO leadership positions in Europe, North America, Latin America and Asia. He founded Paul Zeven Executive Coaching in 2008, specializing in business and leadership coaching for senior level executives. He coaches members of the World Economic Forum’s Global Leadership Fellows Program and presents and facilitates at several Center for Creative Leadership (CCL) events. Expertise spans transforming business profitability; product and customer optimization strategy; business reorganizations, mergers and cost containment; strengthening customer strategy; brand development; and building a productive workplace culture. Having lived in 8 countries gives Paul an international perspective and nuanced understanding of cross cultural business practices.


Dr. Kenneth L. Buelow

Kenn is dairy manager and owner of Holsum Dairies, with two 4,000 cow dairy operations. He is an industry leader in sustainability, valuing financial, social, and environmental responsibility; animal welfare; and safe, high quality food products. Kenn is a Doctor of Veterinary Medicine and has practiced In Minnesota, New Mexico, and Wisconsin. His educational background also includes a BS in Physics and Mathematics, and an MS in Geology and Geophysics. In 2012, Kenn was awarded the US Dairy Sustainability Award and participated in the DNR Green Tier program.


Robert L. W. Beausire

Robert is President of KaiNutra LLC, a food ingredient development consulting practice where he helps companies develop and establish new and interesting ingredients. He has a Food Technology degree from Massey University (New Zealand) and a Masters in Food Science from the University of Wisconsin–Madison. He has 30 years food industry experience in operations, product development and in food and nutrition ingredient marketing and business development. Prior to forming KaiNutra, he spent 17 years helping Glanbia Nutritionals develop its North American business in advanced whey ingredients, milk proteins and next-generation grain technologies as VP of Business Development and Marketing.


Bengt Sjogren

Bengt is CEO of Interverbum International, a globalization and localization company serving the needs of global companies in the public sector, health care, manufacturing and transportation verticals. For more than four decades, he’s made his firm’s global clients successful in growing revenues and market share. Prior to becoming President at Slack Barshinger, Bengt worked at Tetra Pak International, building local operations throughout Asia, Europe, Latin America, the Middle East, India and Africa. His years at Tetra Pak culminated in serving as President and CEO of Tetra Pak USA from 1991 to 1996. During this time he also headed up the global accounts team for his companies, ensuring superior account performance on a global basis.


Adam grew up working in the family business as part of the 4th generation at Klondike Cheese. He then went on to get a BS in Chemical Engineering from UW Madison.  He has worked in almost all areas of the business with a focus on production, quality, product, and process development.  Well known for their feta, Adam recently spear-headed Klondike’s expansion into the Greek Yogurt category.      

Adam recently obtained his Master Cheesemaker license in feta and havarti cheese.  He has previously served as President of Southwest Wisconsin Cheesemakers Association.  Adam’s passion is to ensure that only the highest quality products are produced consistently and efficiently.  Klondike Cheese takes much pride in continually being recognized with awards for their cheese and yogurt products at national and international competitions.