Clearwire, which markets wireless Internet services under the Clear brand name, has tapped independent agency Venables Bell & Partners in San Francisco following a review.
Venables succeeds Santa Monica, Calif.-based indie shop Secret Weapon, which had added the business two years ago.
Client spending has increased as the company has rolled out its service to more markets. Clearwire spent more than $30 million on ads in the first half of this year after spending about $20 million in all of last year.
Thomas Enraght-Moony, client svp, marketing, praised Venables' "youthful energy, strategic emphasis and track record of success."
WPP's Mindshare in Chicago continues handling media chores, which were not part of the review.
The agency is perhaps best known of late for its offbeat Chef Boyardee TV spots with oddities like talking blankets and military action figures. Venables also works for Audi of America, ConocoPhillips, PG&E and Vizio, among others.