“John Kosner’s experience in sports media is unrivaled, with knowledge in just about every aspect of the business. He helped transform ESPN into a modern-day sports platform and his passion for change, combined with his ability to look well beyond the current horizon is impressive and unique.”

Bob Iger
CEO, The Walt Disney Company

“John is a leader in exploring what is next for sports media and what it means for the fan experience of the future. His vision and commitment to embracing new technologies is helping shape our industry and transform the way sports are consumed.”

Adam Silver
Commissioner, NBA

“John Kosner has the rare ability to zoom in and out as he advises businesses and entrepreneurs. He can discuss strategy on a 5-year horizon while simultaneously redlining the very specific details of a partnership. He’s an asset for your business at any stage.”

Will Ahmed,
Founder & CEO, WHOOP

“From the first time we met in 2009 and I told him that ESPN’s scores were not very good, John Kosner has been a dedicated and collaborative partner who brought ESPN and Apple closer together. He shares my passion for sports and technology and all that is possible. And he did improve ESPN’s scores!”

Eddy Cue
SVP, Services, Apple

“John is an amazing partner! He brings great value with his experience, connections, industry know-how and above all his great attitude. John is always active in pushing and finding new opportunities, working with us, and thinking how we can continue and move forward on all aspects of the business.”

Daniel Shichman
Co-Founder & CEO, WSC Sports

"From sports tech to sports media, John knows the ins and outs and the movers and shakers in our industry. Not a week goes by without learning something from John or getting a connection to a valuable contact. Building an industry-leading brand in the emerging multi-billion dollar NIL industry is a tall task, but having John on our side has helped us learn from the best in the business."

Blake Lawrence
Co-Founder & CEO, Opendorse

“John effectively melds a deep and impressive knowledge of the sports industry with a firm grasp of media and digital trends, and he works in an innate sensitivity to client needs for good measure. He’s a consummate pro and a true pleasure to work with.”

Val Ackerman
Commissioner, Big East Conference

“John’s in a class by himself with his experience in sports, entertainment, technology, and media. He’s built an unparalleled network of contacts from his four decades of industry success.”

Rick Welts
Former President & COO, Golden State Warriors

“A phenomenal visionary and inspirational leader who is generous with his advice and cares about the people in his orbit. He is an innovator at the intersection of sports and media – and can see much further into the future of where these fields meet. His ability to also connect the efforts and desires of large scale traditional companies with small, fast and nimble ones provides him with a unique vantage point to make a difference!”

Frans Johansson
Founder & CEO, The Medici Group

“John combines the perfect amounts a vision and know how. He is both a trusted confidant and a steady hand bringing decades of operational experience and an insatiable appetite for what’s next to Disruptive portfolio companies and has become the Tom Hagen to our 890 Fifth Avenue Partners Family.”

Adam Rothstein
Executive Chairman & Director, 890 Fifth Avenue Partners

“John Kosner is one of the few executives who managed to not only keep up with the vast changes of media over the last 20 years, he deftly navigated from his captain’s seat like none other.”

Darren Rovell
Action Network

“John Kosner possesses both the perspective of an insider as well as a disrupter. That is an extremely potent combination.”

Zack Weiner
Co-Founder and President, Overtime