Which Dragon's Den investor co-founded the marketing company Social Chain?

Dragon's Den investor Steven Bartlett co-founded the social-media marketing company Social Chain.

Bartlett co-founded Social Chain in 2014 with Dominic McGregor. The company built campaigns for brands by using online communities, influencers, and social-media storytelling rather than relying only on traditional advertising methods.

Social Chain grew from a start-up into an international agency group and became the business most closely associated with Bartlett before his television career. His background in digital marketing also explains why he is often described as the technology-focused or social-media-focused member of the Dragon's Den panel.

Social Chain should not be confused with Social Chain AG, the publicly listed group created through a later business combination. Bartlett is also associated with The Diary of a CEO podcast, but that is a separate venture from the marketing company he co-founded.