This agency is there when you need to change the channel -- of your marketing efforts. Specializing in direct, digital, and database marketing, Jacobs & Clevenger provides data-driven acquisition, lead generation, activation, retention, loyalty, and win-back programs. It also offers public relations, promotion, and creative development services for print, television, radio, and interactive campaigns. Jacobs & Clevenger has provided its direct marketing services to such clients as AT&T, Orbitz, and Ulta. The agency was founded in 1982 by president Ron Jacobs.