ESL, owned by Textron Systems, operates in the UK as an SME with specialist expertise in electronic warfare and electro-optic technology. ESL is an innovative company with capabilities in research and technology, system design, development, manufacturing and product support. Exposed to many diverse market applications ESL has gained a comprehensive understanding of the defence and commercial business sectors. ESL are world-leaders in the testing and training of airborne and land-based defensive aid suites and self-protection systems from aircraft, helicopters & armoured fighting vehicles.ESL manufactures a large range of electro-optic and laser based products for EO/IR Passive Missile Warning Systems, Laser Warning Receivers, IR jammers, and Directed IR Countermeasures. ESL has significant experience in trials support, range integration and training of military personnel in range environments. ESL provide integrated logistics support on numerous important programs including flight-line testing support for the UK Nemesis DIRCM system and EW support for the UK Eurofighter.