Description Advertising agency Mering offers strategic planning, creative development, graphic design, and media buying services and specializes in serving the ad needs of California businesses and beyond. Mering caters to clients in such industries as travel and tourism, consumer goods, entertainment, financial services, and health care. Clients have included the National Football League, Sutter Health, and the City of San Diego. The agency owns offices in Sacramento and San Diego, California. Mering was founded in 1985 by CEO Dave Mering.