An industry association dedicated to ‘boundaryless information flow.’ In practice this means the development and promulgation of open (i.e. nonproprietary) standards and the certification of products as complying with them. It also controls the UNIX trademark. Its principal members are Capgemini, EDS, Hewlett-Packard, IBM, NEC, Philips, and Sun Microsystems Inc.; total membership exceeds 250.

http://www.opengroup.org/ The Open Group home page