Which Dragon co-founded the technology company Social Chain before joining Dragons' Den?

Steven Bartlett co-founded the technology and social-media company Social Chain before joining Dragons' Den.

Bartlett co-founded Social Chain with Dominic McGregor in 2014. The company worked in social-media marketing and built campaigns around online communities, influencers and digital-native brands. Its growth made Bartlett a prominent young entrepreneur before he became a television investor.

He later joined Dragons' Den for its twentieth series, becoming the programme's youngest Dragon. His experience differs from that of investors whose careers were built mainly in physical retail, property or manufacturing. Bartlett often evaluates how companies use audience growth, digital distribution, community and brand identity.

Social Chain is sometimes confused with Bartlett's podcast, The Diary of a CEO, which is a separate media project. It is also easy to attribute the company to another Dragon because several panel members have technology investments. The specific co-founder linked to Social Chain is Steven Bartlett.