LSE with its new Millennium IT trading platform, which is developed in C++ programming language and runs on SUSE Linux. It replaced its previous TradElect platform, which was written in C#, based around Microsoft .Net architecture on Windows Server and SQL Server.

However, no detail has been provided on how LSE's Millennium platform would integrate with Singapore's SGX QUEST system.

In , LSE's CIO, Antoine Shagoury, has also been appointed to the role of group chief operating officer at the company. In his new role, Shagoury will look after all aspects of the group's business operations in addition to his existing technology management responsibilities.