XMPP Standards Foundation (XSF)

The XMPP Standards Foundation (also known as the XSF and formerly the Jabber Software Foundation) is an independent, nonprofit standards development organisation whoseprimary mission is to define open protocols for presence, instant messaging, and real-time communication and collaboration on top of the IETF’s Extensible Messaging and Presence Protocol (XMPP).

The XSF also provides information and infrastructure to the worldwide community of Jabber/XMPP developers, service providers, and end users. In addition, the XSF administers theJabber Trademark Licensing Program.

At the core of the XSF is its elected Membership who, in turn, elect aCouncil (the technical leadership) and Board (the business leadership). TheBoard also appoints various work teams and roles.

The Board

The Board of Directors of the XMPP Standards Foundation oversees the business affairs of the organisation. As elected by the XSF membership, the Board of Directors consists of the following individuals:

• Guus der Kinderen is an independent consultant and founder of GoodBytes, specializing in XMPP-based messaging systems and real-time communication solutions. He has been active in the XMPP community since the early 2000s and contributes to multiple projects, including theOpenfire server and theXMPP Interop Testing framework. His interests include open standards, protocol development, and fostering a sustainable and thriving XMPP ecosystem. You can contact him viaemail orXMPP.
• Ralph Meijer is an independent consultant for Nuntians Services B.V., working on real-time communications systems, event-driven architectures, and observability. He is the lead developer of several XMPP related projects and services, including Wokkel and the XMPP support in Twisted, the Idavoll pubsub component, and Planet Jabber. Ralph has been member of the XMPP Council from 2004 to 2013 and Director since 2013. You can contact him viaemail orXMPP.
• Mickaël Rémond s a long-time open-source contributor and a key figure in the XMPP ecosystem. He is the founder and CEO ofProcessOne and a principal architect of ejabberd, one of the most widely deployed open-source XMPP servers. Involved with XMPP since 2000, he has served for many years on the Board of Directors of the XMPP Standards Foundation (XSF), where he helps guide the development of open, interoperable real-time communication standards.
• Florian Schmaus is a software developer and long-standing contributor to the XMPP community. He is leading the development of Smack, an XMPP client library targeting Android and Java. His interests include operating systems, parallel runtime systems, and systems software in general. Fittingly, Florian also conducts research in this area and helps students unravel the black box inside modern computing systems. Besides that, he enjoys spending time with his family.
• Arne-Bruen Vogelsang is the founder and lead developer ofmonocles. Whereas he is maintaining two public XMPP servers andmonocles chat is a known XMPP chat client for Android, he’s also working on other non-XMPP related open source projects.During his studies he learned a lot about the need for more ethical and fair digital and technological solutions. He also experienced the business side for founding a sustainable company providing open source solutions.He advocates and supports XMPP and open source since many years and is an official XSF member since 2023.You can contact him viaemail orXMPP.

The Council

The XMPP Council is the technical steering group that approves XMPP Extension Protocols. The Council is governed by theXSF Bylaws andXEP-0001, as augmented by variouspolicies and procedures.

The Council is elected by the members of the XMPP Standards Foundation. In the interest of transparency,chatroom logs andmailing list archives are available (anyone can subscribe to the mailing list, but only Council members can post). The Council meets once a week in achatroom - anyone can join in, comments from the floor are welcome.

The Council consists of the following individuals:

• Dan Caseley is a regular contributor to theOpenfire project, and an author and contributor in Openfire’s plugin ecosystem. Initially involved in XMPP implementations at work, Dan is now a contributor in both his professional and personal life as part of the OSS community.
• Daniel Gultsch is the maintainer of the Android clientConversations and operates anXMPP domain hosting service. He has also (co-) created several XEPs. Contact information can be found onhis website.
• Marvin Wissfeld is one of the maintainers of the XMPP clientDino. He has contributed to several XEPs and various free software projects related to XMPP.
• Stephen Paul Weber is one of the maintainers at theSopranica Project which includes theCheogram Services and Client and alsoJMP. Feel free to contact him viahis Jabber ID.
• Jérôme Poisson is the maintainer of theLibervia client, including several components and notably an ActivityPub ⟺ XMPP gateway, and the Libervia Pubsub component (an advanced PEP/Pubsub service). He is also the author of several XEPs and a strong advocate for non-IM use cases, particularly those based on pubsub.