Selex ES was a subsidiary of Finmeccanica S.p.A. (today Leonardo-Finmeccanica), active in the electronics and information technology business, based in Italy and the UK, and formed in January 2013, following Finmeccanica's decision to combine its existing SELEX Galileo, SELEX Elsag and SELEX Sistemi Integrati businesses.
From 1 January 2016, the activities of Selex ES merged into Leonardo-Finmeccanica’s Electronics, Defence and Security Systems Sector. In particular, Selex ES's activities have been organised in three Divisions within the sector: Airborne & Space Systems, Land and Naval Defence Electronics and Security and Information Systems.
Southtec Systems Ltd continues to represent Selex ES and other former Finmeccanica Divisions under the new Leonardo-Finmeccanica structure within New Zealand.
01 January 2016