Cassidian Test Engineering Services Ltd (TES) is the world leading supplier of high quality value adding test engineering services, with unmatched expertise and decades of experience.

A consistent focus on high quality engineering solutions and long term obsolescence management has enabled TES to offer test products and engineering services that span the entire life cycle of supported systems. Early application will maximises value as tools and expertise are bought to bear to ensure optimum effectiveness and efficiency from day one.

TES is an independent legal entity within Cassidian (an EADS company) and is accredited to ISO 9001:2008 & TickIT 5.5 with the appropriate security listing to handle protectively marked material. This provides the ability to work with commercially sensitive information and provide impartial advice to all customers with complete discretion.