ab+c Creative Intelligence celebrated its new Center City office with a ribbon cutting and cocktail party. ab+c is the largest marketing agency in Delaware and is making a huge commitment to Philadelphia, taking over a whole floor at 1429 Walnut Street, which will serve as its Philly headquarters. Guests at the party included local business people and clients; even Mayor Michael Nutter stopped by. The mayor thanked John Hawkins, president/CEO of ab+c Creative Intelligence, for making a commitment to Philadelphia.