The agency has produced three TV spots. The first two, which began running this week, show Gateway founder and chairman Ted Waitt with a "silent partner," a cow, that inspires him.
The new campaign includes print in magazines and some daily newspapers.
Gateway earlier this year moved its advertising in-house, where it remains, said Gateway spokesman Greg Lund, who added that the company assigns advertising projects on a case-by-case basis.
Gateway last year spent $297 million on advertising, and $117 million in the first half of 2001, according to Taylor Nelson Sofres' CMR.