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Tech City Map is a constantly-evolving compendium of East London's vibrant technology and creative ecosystem. In addition to showing where businesses are located Tech City Map uses advanced technology from Trampoline Systems to reveal the web of connections linking them together and calculate each company's influence in the community.

The platform works by pulling in streams of Twitter data from each business and tracking following relationships, mentions and retweets. It was launched by UK Prime Minister David Cameron in November 2011 at the Trampery in Shoreditch, East London.

What businesses are included?

One of East London's great strengths is its inter-disciplinary creative community. Software businesses mix with film-makers, fashion designers, digital media agencies, artists and product designers. The jostle of ideas from all these tribes is a tremendous driver for innovation. Tech City Map sets out to capture all the different dimensions and reveal the mesh of connections between them.

What area is covered by the map?

The UK Government's Tech City initiative is focused on the cluster of technology businesses located in East London. For the purposes of Tech City Map this is taken to include businesses located in the boroughs of Hackney, Tower Hamlets, Newham, Islington and Greenwich.

Where does the information come from?

Tech City Map was launched with a database of 819 business. This was made up of 291 Shoreditch-based software businesses compiled by Gateway to London plus 528 more mixed East London businesses compiled by the Digital Shoreditch Festival. Following the launch additional businesses were submitted via the website and manually validated before inclusion in the database.