Algonomy (formerly RichRelevance) is a company based in San Francisco, California, that offers personalized shopping experiences for large retail brands, including Macy's, Barneys New York, Office Depot and others. In addition to its San Francisco headquarters, the company also has offices in New York, Seattle, Paris, Munich, Tokyo, Malmö, Reading, and São Paulo. RichRelevance was founded by a former Amazon.com senior executive in personalization research and development.