Media Storm appointed Heather Gregg as associate media director for strategic planning.

The Gate Worldwide announced that Nathalie Le Régent-Hausman has joined the agency as director of business development. In addition, Tracy Ullman has been appointed account director and Michael Andrew Arnold has been named supervisor, channel planning.

Ignited promoted Jordan Atlas and Troy Scarlott to senior vice president/executive creative directors.

Trailer Park hired Jason Friedlander as senior director, user experience and strategy, mobile.

GSD&M named Matthew Childs as senior vice president, experience and insights.

Clay Mills was promoted to managing director of Wieden+Kennedy Amsterdam, replacing Lee Newman, who left the agency. Mills joined W+K Amsterdam in 2010 as group account director on Heineken Global and head of business development.

DiGennaro Communications opened an office in Santa Monica, California to be led by Alysha Walker as vice president, group account director. In addition, Sally O’Dowd was named vice president, group account director and Elkie Griffin as account director.

CP+B hired Cameron Harris as creative director. Harris joins CP+B from Leo Burnett Sydney where he worked on the Canon and eBay accounts.

Rachel Leventhal joins the watsons as account manager.

Vibrant Media named Sheila Buckley as chief revenue officer.