Dudnyk Advertising and Public Relations.

Dudnyk Advertising and Public Relations, Horsham, Pa., appoints Gary Gatyas as vice president and director of the public relations group. He also will serve on the senior management committee of Dudnyk's parent company, CommCor Inc. Gatyas has more than 16 years of agency and corporate experience in new business development, marketing and PR. He most recently served as managing supervisor at Gibbs & Soell Public Relations, where he oversaw business development in the agency's agribusiness, building products, consumer lifestyle, industrial and technology practices.