Omnicom on Thursday confirmed it has agreed to sell Altschiller & Co. to Hill, Holliday, Connors, Cosmopulos
, Boston. Hill Holliday will merge its New York office with Altschiller, also based in New York. Billings are estimated at $100 million. David Altschiller will serve as chairman and chief creative officer. Chuck Kushell, formerly exec VP-chief operating officer at Cliff Freeman
& Partners, will serve as president.