Eric John Bartosz (born April 19, 1976) is an American author, business executive, and educator. He is an adjunct professor in the MBA program at DeSales University, and a lecturer in the Master of Organizational Leadership program at Muhlenberg College.
Bartosz founded BAR40, a personal development framework and book series, and owns the consulting firm BAR40 Fractional Solutions.
Early life and education Bartosz was born in Holyoke, Massachusetts, in 1976. He received a Bachelor of Science degree from St. John’s University and an MBA from DeSales University. He later completed executive education coursework in leadership through Harvard Business School's Online Program.
Career Business and consulting Bartosz has worked in sales, marketing, and leadership roles, including senior positions at Contra Vision, Windsor Marketing Group, and Sihl. In 2016, he founded BAR40, which began as a personal development program and later expanded into published works and coaching resources.
Bartosz is the founder and chief executive officer of BAR40 Fractional Solutions, a consultancy offering fractional executive services, including market expansion, revenue development, and leadership coaching for small and medium-sized businesses.
Teaching Bartosz is an adjunct professor in the MBA program at DeSales University, where he teaches leadership and strategy. He also teaches in the Master of Organizational Leadership program at Muhlenberg College.
Writing Bartosz is the author of two personal development books; BAR40: Achieving Personal Excellence (2020), and BAR40 Ultimate Year Training Journal (2020). He writes a monthly column titled Bar Talk for Saucon Source, a Lehigh Valley–based online news outlet.
Recognition In 2026, Bartosz was selected for inclusion in Marquis Who's Who. The same year, he was named in the Lehigh Valley Business 'Most Influential Leaders' list.
References
External links Official website