David Hintzsche was part of the team who grew a family-owned agri-business into a company. For 42 years, he had a successful career with many titles at Hintzsche Fertilizer, Inc., in Illinois. The business grew with over 150 million in sales, 225 employees at 15 ag retail locations, and many contract pork production sites in northern Illinois and eastern Iowa.

David started working at Hintzsche Fertilizer, Inc. as a Second-shift Feed Mill Operator while attending Waubonsee Community College. After two years of college, he became a custom operator, then Troxel Plant Manager. In 1979, David became the Agronomy Division Manager for 11 years, moving his way up in the organization to the General Manager. In 1995, he became the President and Chief Executive Officer. He led the family owned business for 19 years before it was sold in 2014.

David was on several board affiliations including: Hintzsche Companies from 1990 to 2014, Premier Crop Systems from 2000 to 2007 and joined the board again in 2014. He was also on the board at DeKalb County Economic Development Corporation from 2005 to 2013, and United Suppliers and Agricultural Retailers Associations from 2011 to 2014. He was a Vistage (CEO peer group) member from 2002 to 2014 and recently joined the Willard Agri-Service Board of Directors at the beginning 2015.