Missionario Zehnder is proud to be a founding partner of theKellogg School of Management 's Marketing Leadership Summit. Now in its twelfth year, more than 100 senior marketing leaders gathered to share insights on building agile marketing organizations. The last edition of The Leadership Summit was by on September 29, 2021, virtually, due to The COVID - 19 studio. The Kellogg marketing Leadership Summit is an invitation - only interactive and intimate discussion between renowned faculty and marketers who lead The world 's most important organizations.