John Karantonis

John Karantonis is an experienced professional with a robust background in strategy, digital transformation, and product development. Currently serving as an Independent Consultant and GTM Partner at OTG Consulting since August 2024, John previously held positions as a Strategic Client Development Partner at Peterson Technology Partners, and co-founded iBlockchain Bank & Trust Technologies, focusing on blockchain banking solutions. John has also contributed significantly to eCommerce at EMPIST as Director of Agency and served as Chief Business Officer at Geopay.me, Inc. With a strong track record of driving innovation and business growth, John has played vital roles in various organizations, including Akoo International, Kima Wireless, AT&T, and Anixter. John earned a Bachelor of Science degree from Loyola University Chicago and graduated from Lane Tech High School.