Creativity. Innovation. Technology. Omnicom is a leading provider of data-inspired, creative marketing and sales solutions. Omnicom’s iconic agency brands are home to the industry’s most innovative communications specialists who are focused on driving intelligent business outcomes for their clients. see our agencies Corporate Responsibility Learn how Omnicom and our agencies’ culture of collaboration and creativity underpins everything we do for our clients, our people, our shareholders and the communities around us. learn more HEADLINE NEWS June 5, 2025 Omnicom Named World’s Most Effective Holding Group in 2024 Effie Index® This marks the second year in a row — and third time in four years — that Omnicom has earned this top honor. read more May 8, 2025 Omnicom to Present at the J.P. Morgan Global Technology, Media and Communications Conference May 7, 2025 Susan Catalano Joins Omnicom as Chief People Officer for the U.S. TALENT Our Greatest Asset We are committed to developing our employees through ongoing education and training. From those new to agency life to our seasoned leaders, everyone in the Omnicom family is afforded rich opportunities for professional growth. read more FOR INVESTORS Stock price $ full stock information Q1 2025 Results learn more Chairman’s Letter A letter from the Chairman and Chief Executive Officer read more