21. Tweetdeck

Founder: Iain Dodsworth
Website: www.tweetdeck.com

Tweetdeck is one of the most popular social networking applications on the web boasting several million users. The service allows users to manage various streams of information coming through their social networking accounts, allowing for easy consumption of information from platforms such as Twitter, Facebook and Foursquare. Founder Iain initially built the application to make his own use of Twitter more efficient and relevant to him, but it proved so popular he soon found himself growing both the team and scale of the venture.

In 2009 Iain secured investment from PROfounders Capital, the fund set up by Bebo founder Michael Birch and Lastminute.com’s Brent Hoberman. He now plans to cement Tweetdeck’s position as the ‘go to app’ for the most influential and active users of social networks.