ITSO

ITSO Ltd. is the non-profit distributing organization that oversees the ITSO Specification for smart ticketing in the UK. ITSO helps its members to set up and run ITSO-compliant smart ticketing schemes, tests and certifies smart ticketing equipment to ensure it meets the ITSO standards and ensures the ITSO Specification is up to date and fit for purpose. ITSO operates the ITSO Security Management System (ISMS), a highly secure key management and distribution system specifically developed to enable ITSO-compliant smart ticketing systems to be set up.

https://www.itso.org.uk/