Internet

Worldwide Consortium for the Grid (W2COG)
11/11/2015

Promoted networking technology to support Network Centric Operations (NCO) *Inactive

X Consortium
11/11/2015

Developed the Unix X Window System and related standards *Merged with The Open Group in 1996; spun out later as X.org

XBRL- (EXtensible Business Reporting Language) International
8/24/2016

Develops an XML-based framework for the reporting of business information.

XDI.org (XDI)
11/11/2015

Develops the XRI Data Interchange (XDI)

Xiph.Org Foundation
11/11/2015

Develops and promotes open source, multimedia related projects.

XMPP Standards Foundation
11/11/2015

Develops open protocols for presence, instant messaging, and real-time communication and collaboration on top of the IETF's Extensible Messaging and Presence Protocol (XMPP).