The project enables customers to buy street food and coffee and will later offer them the opportunity to purchase gifts, flowers, and grab-and-go fresh produce from mobile retailers.
Pitches or 'dots' are open at several locations, including North Greenwich and Hammersmith. The stalls at the
dots take many forms from simple tables, to customised vans, trucks, carts and bikes.
The partnership aims to liberate traders from the hassle involved in finding a pitch, while introducing customers to new brands. Traders use a smartphone app to choose a 'dot' for a few hours at a time.
For example, a coffee truck might book a morning slot outside of a Tube station during peak commuting hours. In turn, customers passing the same 'dot' regularly get the chance to discover new businesses and products each day.
Café Bueno is one of the flourishing businesses that have been taking advantage of Londoners' thirst for coffee, working from a variety of locations including North Greenwich bus station.
Sean O'Riordan and Patricia Arnone set up their business using the money they had saved for their first property to buy a vintage Tuk-Tuk and convert it into a mobile coffee shop.
Sean O'Riordan said: 'We love selling our coffee at North Greenwich and meeting new customers; Londoners like to support the small guys.
'When we started our business, we just worked at weekend events, but our coffee was becoming so popular that I gave up my day job and used StreetDots to start selling it in the week.'
Another business trialling TfL dots is Zip and Zing Juices, which sells organic smoothies and slow-pressed juices.
Owner Antony Cervantes decided to turn his interest in juicing into a business in 2016 following voluntary redundancy. A custom-made juice trike was the obvious vehicle of choice for the keen cyclist.
Antony Cervantes said: 'There are so many good things about having a mobile stall. I love cycling to events or pitches and it's fun to hear pedestrians shout my company name as I ride past.
'It is a great idea for TfL to work with StreetDots as it will mean commuters and tourists have more choice and also gives mobile traders greater opportunities.'
Graeme Craig, Director of Commercial Development at TfL, said: 'More than 90% of our tenants are small or independent businesses. Working with StreetDots, we will be giving more people the opportunity to try out their new business ideas in a simple and cost-effective way at locations across London.
'It is another great example of how we are supporting small businesses alongside generating vital revenue to reinvest in the transport network.'
Atholl Milton, StreetDots co-founder, said: 'Since we opened our first dot in 2014, the StreetDots network has helped over 300 street food traders tour their trucks, vans and stalls around London, collecting new customers in each new area they visit.
'The partnership with TfL means we can give these mobile businesses an even wider choice of locations, while introducing the millions of commuters that pass through TfL stations every day to new brands selling original products - something new at every journey.'
Notes to editors