De La Rue plc (UK: /ˈdɛləruː/, US: /ˌdɛləˈruː/) is a British company headquartered in Basingstoke, England, that designs and produces banknotes, secure polymer substrate and banknote security features (including security holograms, security threads and security printed products) for central banks and currency issuing authorities. It is listed on the London Stock Exchange.