Quigley-Simpson is a full-service advertising agency and provides clients a wide range of services, including strategic planning, creative development and executive, media planning and buying, as well as response optimization. Best known for its signature brand response advertising approach to campaigns, Quigley-Simpson is the brand response agency of record for Procter & Gamble (P&G), and also does work for VISA, Warner Bros. Home Video, Hoover and several other consumer brand companies.