Sundog is a marketing and technology company based in Fargo, North Dakota with offices in Denver, Colorado and Minneapolis, Minnesota.
Sundog was co-founded by Brent Teiken and Chuck Duffie in 1996. In 2003, the company merged with G.L. Ness Agency and BankShot Productions to form a holding company, Correlat. In 2006, the three companies came under one name, Sundog. In 2012, Sundog expanded to Minneapolis, MinnesotaMinnesota and Denver, Colorado. Since 2009, the company operated in Denver as 29 Stories, a wholly owned subsidiary. In 2009, Sundog laid off 15-16 percent of its employees, citing the economic downturn.