Constant Thomas John Tedder is a co-founder and former CEO of Jagex Ltd. On 23 October2007, Tedder stepped down as CEO and was replaced by Geoff Iddison. He sold his stake in Jagex in 2011 for an undisclosed sum, believed to be worth more than £10m. At one point in 2004, Tedder lived in a house boat named "Chairman Mao" in Chelsea, before moving to Knightsbridge in 2005.
Tedder has also co-founded renewable energy startup Dawn Energy Ltd, ExpenseMagic.com, and the now-defunct charity Greenspaces. He currently works in Asia as founder and managing director of The Hive, with offices in Hong Kong, Singapore, and Bangkok.