Intersango was an exchange offering multiple trading markets for trading bitcoins against multiple currencies.
The service was launched on July 6, 2011. The Intersango open source software that the exchange runs on was announced on March 17, 2011. In September, 2011 the exchange began using a new version of the Intersango open source exchange project with two currency markets (BTC/EUR, BTC/USD) live under the Intersango brand and plans made for the third (BTC/GBP) when Britcoin accounts are migrated at a future date.
On October 9, 2012, the exchange announced imminent plans to shutter its BTC/USD market. On December 19, 2012, the exchange closed its BTC/GBP market after being unable to re-establish a UK banking relationship.