Wikipedia
USwitch
uSwitch.com is a UK-based price comparison service and switching website founded in 2000. The site allows consumers to compare prices for a range of energy, personal finance, insurance and communications services. uSwitchforBusiness.com is uSwitch's energy price comparison and brokerage service for businesses.
In 2007, The Times regarded uSwitch as one of the two most established price comparison websites and highlighted it as being among the best money-saving websites for students.