Steven Bartlett co-founded Social Chain before appearing on the UK programme Dragon's Den.
Social Chain is a social-media marketing agency founded by Bartlett and Dominic McGregor in 2014. The company developed campaigns and online communities for brands, reflecting Bartlett's background in digital marketing and internet-led business growth.
Bartlett's experience with social platforms helped distinguish him from Dragons whose careers were built mainly in manufacturing, retail or property. He joined the BBC programme in 2022, after establishing himself as an entrepreneur, investor and media personality.
Social Chain is sometimes mixed up with The Diary of a CEO, the podcast Bartlett created and hosts. They are separate ventures: Social Chain is a marketing business, while The Diary of a CEO is an interview and personal-development media brand. The company name is therefore the specific answer to this question.