There seems to be a lot of confusion about the parties involved with the IT Infrastructure Library (ITIL® ®).
Let’s give you an overview of the most visible parties:
OGC = Office of Government Commerce in the UK, the trademark owners of
the acronym ITIL® ® and logo. They also own the copyright of the content
of the ITIL® ® publications.
TSO = The Stationary office in the UK, the publishers of the ITIL®
publications. (If you’re interested in buying the books, visit our store
EXIN = EXam INstitute the Netherlands, one of the independent
examination organisations that is responsible for the accreditation of
course providers and the development of ITIL® exams.
ISEB = Information Services Examination Body, the other independent
examination organisation and part of the british computer society.
Course vendors like The Art of Service must be accredited by Exin and/or ISEB to deliver the official ITIL® training programs.
itSMF = IT Service Management Forum, a global user group for
organisations that deal with IT Service Management and ITIL®