Jamal Edwards, 23, Founder, SBTV

Jamal Edwards. Top 30 Under 30.

It all started with the Christmas gift of a video camera when he was 15. Eight years later, Edwards is worth an estimated £8m. His YouTube channel, SBTV, which stands for Smokey Barz, made its name with films of performances by rappers and MCs in London’s grime scene. The company, which started in his bedroom on a west London council estate, now employs 12 people and has branched out into different genres – a music video they made for squeaky-clean singer-songwriter Ed Sheeran has had nearly 8m hits.