SixandCo is a marketing agency of the digital age SixandCo was set up in 2005, as we entered a new age in communication: the digital age. This period has seen the emergence of many digital communication channels, and more importantly, of digital consumers, with profoundly different behaviours and mindsets. It has changed the rules for marketers. Truly understanding these consumers and integrating them into communication plans has become key to success for brands.