Tart on Clapham Common (on The Pavement next to Moen's) is one of the most successful independent cafes in London - on the up and up since 2014. They'd love locals to be a part of their success - there are just two weeks to go on their crowdfunding campaign on Seedrs - https://www.seedrs.com/tart-lo...
I dont know individuals, but a good bet would be to join the Facebook Startups Group (find on Fbook/ apply to join) - this kind of thing will get tons of responses there.
