Sean Cassidy

Sean F. Cassidy is President of DKC, one of the leading independently-owned public relations agencies in North America.  Sean’s extensive experience includes media, corporate, music, aviation, health and legal public relations as well as crisis management.  Named a Partner in 1996, Sean built DKC’s health care practice into one of the largest and most reputable providers of public relations services to hospitals and health related not-for-profit organizations.

Sean assumed the role of President in January 2004, overseeing the company’s day-to-day client service operations and senior management teams while leading several of the company’s highest-profile accounts.  During his tenure as President, the firm has been named the Holmes Report’s “Consumer Agency of the Year” and the #1 Most Powerful Public Relations Agency by the New York Observer, all while experiencing a 400 percent growth in overall revenue.

Sean has orchestrated strategic communications and brand building campaigns for clients including Delta Air Lines,, NBC Universal, Facebook, Instagram, The Honest Company, HBO, Sony Music Entertainment, Clive Davis, Lady Gaga, Bill Maher,NYU Langone Medical Center, The Mailman School of Public Health at Columbia University, The Hearst Corporation, Esquire, Wenner Media, USA Today, The Big East,New Balance Athletic Shoe, Avenues: The World School, Grand Central Terminal, Cantor Fitzgerald, Michael Eisner/ The Tornante Company.

Named one of the “Most Influential New Yorkers” by New York Magazine, he holds a Bachelor of Arts degree in American history from Tufts University. Sean is on the board of directors of the Children’s Health Fund, and resides in New York City with his wife and two children.