Envision Media Arts added director Jason House to its roster.

Maureen Murphy was promoted to senior vice president, E! and Esquire Network advertising sales at NBCUniversal.

Anonymous Content signed director Omri Cohen for commercial representation.

Geary LSF hired Karen Kovaleski as general manager of its San Francisco office.

GSD&M hired Michelle Dickens and Neil Saunders as vice president, planning directors.

Voltari Corporation promoted Lauren Halpern to vice president of sales and hired Brian Condron as regional vice president of sales.

Cultivator Advertising & Design, Denver hired Claire Matthews as digital producer, a new position.

Critical Mass promoted Shaina Boone to senior vice president, adding her to the agency’s executive team.

Alex Yenni joined Blast Radius New York as strategy director. He was most recently at SapientNitro New York, where he was the lead digital planner for vitaminwater, as well as social strategist on NASCAR, BBVA and other Coca-Cola brands.

ESPN named Aaron Taylor as senior vice president, marketing.