David Heinke

David Heinke is a seasoned business development executive with more than 35 years of experience in B2B sales, client relationship management, and revenue generation for professional and financial services firms. 

David spent nearly 30 years as Director of Client Relationships at Grant Thornton Advisors LLC, where he built and managed a portfolio of relationships with leading manufacturing, distribution, and technology companies. In that role, he focused on creating market awareness, generating qualified leads, and driving new business — consistently ranking among the top 15% of sales producers in the organization, in both strong and challenging markets. 

Before his career in business development, David was an English teacher and football coach — an experience that continues to shape his professional practice. He is known for his approach to deliberate listening, his ability to turn connections into long-term client relationships, and his skill in developing and deploying sales and marketing training curricula that generate measurable returns. He has served as a keynote speaker and sales coach, and brings deep expertise in strategic account management, CRM implementation, strategic planning, and international sales coordination. David is also an active community volunteer, serving at the Greater Chicago Food Depository. 

David holds a Master of Arts in Secondary Education with a concentration in Philosophy of Language from the University of Nebraska-Lincoln, and a Bachelor of Arts in English, French, and Teaching from the University of Nebraska-Lincoln.