O.C. Tanner Co., named after founder Obert C. Tanner, is a human resource consulting and services company that designs and helps implement employee recognition programs for clients in the U.S., Canada, and Europe. Counting numerous Fortune 100 companies on its client list, the company provides presentation training, administration, and awards for programs honoring employee service or performance. The company is headquartered in Salt Lake City, Utah. The company also continues the tradition of its founder of allowing consumers to purchase some of the jewelry it offers to clients at either of two retail stores in Utah. The flagship store in Salt Lake City was recently relocated to the Old Hansen Planetarium, a building listed on the National Register of Historic Places. In 2012, the company opened a Rolex store at the City Creek Center.