EW Simulation Technology Limited (EWST) is a UK Company (owned by Herley Industries Inc.), specialising in the design and manufacture of Multi-Spectral Threat and Countermeasures Stimulators for EW test, evaluation and training.

The Company has been established in the radar threat and ECM simulator business since 1984 and has a well-proven and distinguished track record world-wide. The success of EWST has been through the supply of high quality products together with a total commitment to post sales service and logistic support. 

EWST manages a continuous product improvement design philosophy with the ability to upgrade older products with the latest designs.The Company operates a fully documented quality control system certified to ISO9001:2008.

Since 1984, EWST has supplied over 100 simulation equipments to naval, air force, army and civilian customers in 30 countries around the globe. Backed by a network of local sales and representative offices, and with a related facility in Nowra, Australia, EWST offers a total capability for marketing, sales, design, manufacture and support of its radar threat and countermeasures simulator products.