Squarespace is no stranger to celebrity-driven marketing campaigns. In recent years, the brand, which sells software for website creation, has teamed up with the likes of Keanu Reeves, John Malkovich, Chance the Rapper and, more recently, Idris Elba. But unlike many other marketers that have tapped high-profile agencies for big campaigns, Squarespace creates the majority of its advertising wholly in-house.