The Open Group

The Open Group is an industry consortium to set vendor- and technology-neutral open standards for computing infrastructure. It was formed when X/Open merged with the Open Software Foundation in 1996. The Open Group is most famous as the certifying body for the UNIX trademark, in the past the group was best known for its publication of the Single UNIX Specification paper, which extends the POSIX standards and is the official definition of UNIX. Their members include a range of IT buyers and vendors as well as government agencies, for example Capgemini, Fujitsu, Hitachi, HP, IBM, NEC, US Department of Defense, NASA and others.
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