MillenniumIT (known as Millennium Information Technologies or MIT) is a Sri Lanka-based information technology firm that specialises in electronic trading systems and is headquartered in Colombo, Sri Lanka. It has been a fully owned technology business sector of London Stock Exchange Group since 2009.MillenniumIT systems are used by a number exchanges and financial companies including ICAP, the London Metal Exchange, and a series of emerging market exchanges and depositories.