Davidson continued working for Blue Ribbon Sports (it officially became Nike, Inc. in 1972) until the design demands of the growing company exceeded one person's capacity. In 1976, the company hired its first external advertising agency, John Brown and Partners, and Davidson went on to work on other clients' needs. In September 1983, Knight gave Davidson a golden Swoosh ring with an embedded diamond and 500 shares of Nike stock (which have since split into 32,000 shares) to express his gratitude.