Sites using MediaWiki

This is a list of projects that are using  MediaWiki, the wiki engine running Wikipedia and other Wikimedia projects.

Wikimedia projects

 * 1) Wikipedia (on all the different language sites), http://www.wikipedia.org
 * 2) Wiktionary, a wiki based dictionary, http://www.wiktionary.org
 * 3) Meta, a wiki for discussing all Wikimedia-related issues, http://meta.wikipedia.org
 * 4) Wikiquote, a wiki for quotations, http://quote.wikipedia.org
 * 5) Wikibooks, a wiki primarily for educational textbooks, http://www.wikibooks.org
 * 6) The September 11 Memorial Wiki, http://sep11.wikipedia.org
 * 7) Test Wikipedia, used for experimenting with the latest unstable features, http://test.wikipedia.org
 * 8) http://wikipedia.sourceforge.net/, another demo/test wiki, uses MediaWiki 1.2.5
 * 9) Wikisophia, a WikiTeX prototype; http://wikisophia.org
 * 10) Wikisource, a wiki for source texts, http://sources.wikipedia.org

Wikimedia project forks

 * 1) Wikinfo (formerly Internet-Encyclopedia), Fred Bauder's fork of Wikipedia, aims to offer articles from multiple points of view as opposed to Wikipedia's neutral point of view: http://www.internet-encyclopedia.org . Wikinfo uses w:GetWiki- a fork of MediaWiki software.
 * 2) Enciclopedia Libre, http://enciclopedia.us.es/ : an independent encyclopedia project founded by former participants of the Spanish Wikipedia.
 * 3) Wikiznanie, http://www.wikiznanie.ru/ : Russian-language general knowledgebase (encyclopedia), uses BSD DPL.

Public wikis

 * 40tudeDialogWiki (www.40tude.com/dialog/wiki) : a wiki about the Dialog newsreader
 * Acadine Archive (www.acadine.org) : A wiki devoted to covering the mysterious, occult, paranormal, and unknown without totally debunking or supporting each topic at hand.
 * Adapedia (www.adapedia.org) : Computer Science and Mathematics Knowledge Base. A project of the Wikinerds Community.
 * Andria w:Andria (www.freearchive.org/wiki : a free long-term archive project for free digital content
 * Aniki w:Aniki (www.aniki.info) : a German wiki about w:Anime and w:Manga
 * Arija wiki w:Arija wiki : an encyclopedia about the town of Arija (Burgos, Spain), with a Photographic File about Cristalería Española glass factory - 1906 (Saint Gobain Glass Group), and the Dam of the Ebro river
 * www.arija.org/es/ Spanish version (best)
 * www.arija.org/en/ English version
 * www.arija.org/fr/ French version


 * Asian Open Source Centre w:Asian Open Source Centre (www.asiaosc.org/enwiki/) : aims to be an information and collaboration hub for w:open source software in w:Asia: http://www.asiaosc.org/enwiki/
 * Bible Wiki (wikibible.info) : an open Bible commentary
 * Blitzed Wiki (wiki.blitzed.org) : a place for all Blitzed users to express their ideas and collaboratively develop them
 * Blogalization Nation w:Blogalization Nation (www.blogalization.nu/nation/) : a collaborative translation project and multilingual publishing forum
 * BonsaiWiki (bonsaiwiki.tomk32.de/wiki.php) : German language wiki about bonsai trees, by Wikipedian TomK32:
 * Bunk's Imagery Wiki (andysocial.com/wiki) : is a source for amateur imagery and GIS enthusiasts.
 * C-Arbre w:C-Arbre wiki (c-arbre.tuxfamily.org/wpedia) : companion wiki for a w:content management system
 * Care2x (docs.care2x.org) : documentation base for an open-sourced integrated healthcare information system project
 * Certificaophp ([http://www.certificacaophp.com.br/wiki/ www.certificacaophp.com.br/wiki/) : Guia da Certificação Zend PHP em Portugues Brazileiro
 * CleanJocks, (www.cleanjocks.com/) : a collaborative project to build a reference site for information on performance enhancing drugs in sports.
 * Consumerium w:Consumerium is a project : developed under GFDL licence, to develop w:free software and information infrastructure for storage, transport and display of product information to consumers and w:feedback to the producers to enhance the consumer experience, advance product development and to keep this planet as hospitable as possible in the future: http://www.consumerium.org/wiki/wiki.phtml
 * contextgarden (contextgarden.net) : a wiki about ConTeXt, a TeX macro package (computer typesetting)
 * Contraintes.net (www.contraintes.net) : est un site francophone dédié au contraintes artistiques volontaires : littérature, cinéma, BD…  Contraintes.netis a site dedicate to volontary artistic constraints: literature, cinema, comics... (French).
 * CorpKnowPedia w:CorpKnowPedia : dedicated to charting the corporate landscape
 * Creative Commons wiki (wiki.creativecommons.org) : a w:Creative Commons wiki


 * CSDN&DonewsWiki (wiki.csdn.net/wiki/首页) : A Chinese public wiki for IT encyclopedia and technical articles.
 * Cunnan w:Cunnan : dedicated to the collection of information relevant to people interested in w:medieval re-enactment, especially members of the w:Society for Creative Anachronism: http://www.sca.org.au/cunnan/
 * DBWiki w:DBWiki : a German language wiki for database developers: http://www.dbwiki.de
 * DelphiGL.com (wiki.delphigl.com) : a German language wiki for OpenGL and 3D programming
 * demosoftware.net w:Demosoftware.net (www.demosoftware.net) : demosoftware.net maintains free software demos and free support documentation for gpl'd software
 * Disinfopedia Disinfopedia : an encyclopedia of propaganda. A project of w:PR Watch: http://www.disinfopedia.org/, http://www.prwatch.org
 * dKosopedia, (www.dkosopedia.com/) : a political encyclopedia built by the DailyKos community.
 * DrFTPD wiki (drftpd.mog.se) : w:DrFTPD, an w:FTP server written in Java
 * EarthDweller.com (www.earthdweller.com) : A Newspaper/Magazine to reveal what is important to any earth dweller.
 * EduxinWiki (wiki.eduxin.org) : a site for Chinese-English bilingual learning
 * Encyclonigeria ( www.encyclonigeria.com]]) : Pan-Nigerian Encyclopedia and knowledge-base.
 * EvoWiki w:EvoWiki (www.evowiki.org) : Intended as a repository for mainstream scientific responses to common w:intelligent design and w:creationism arguments and information about w:evolution
 * FilmApart (filmapart.net) : Public Domain media content creation and distribution under the Creative Commons Attribution-NonCommercial-ShareAlike copyright
 * FinestWebs Wiki (wiki.finestwebs.net/) : About IT-Security : Music and Berlin. Just started in German.
 * FIRSTwiki w:FIRSTwiki : information about the FIRST robotics competition: http://www.firstwiki.org/
 * Flexicon w:Flexicon : German language medical encyclopedia (software has been heavily modified): http://flexicon.doccheck.com/
 * FreeBSDWiki (freebsdwiki.org/) :- a communal cheatsheet/notepad in support of w:FreeBSD
 * FreeCiv (www.freeciv.org/) : a popular open source strategy game. The entire FreeCiv website runs on MediaWiki.
 * FreeCulture (blogspace.com/freeculture/Main_Page) : a wiki version of the book w:Free Culture by w:Lawrence Lessig
 * FreeCulture.org (wiki.freeculture.org/) : a site about w:Free Software, w:filesharing, and w:Open Content
 * Freizeitparkweb w:Freizeitparkweb - A german Community about Amusement- : Themeparks and Fun Fairs http://wiki.freizeitparkweb.de
 * Game Contractor (gamecontractor.org) : a forum for video game contractors and their clients.
 * Game Programming Wiki (gpwiki.org) : The Game Programming Wiki is dedicated to providing easy-to-understand game programming knowledge to the public.
 * GamePedia.org (www.gamepedia.org) : The first Free and Open Encyclopedia of Games.
 * GayPedia.org (www.gaypedia.org) : The Free Guide to Gay Travel, Culture and Education.
 * Gentoo-wiki (gentoo-wiki.com) : Created in order to give people a place to put HOWTOs, tips and general Gentoo/Linux information.
 * glassdoc.org (glassdoc.org) : is a Wiki on as many aspects of the material "Glass" as possible. At present it's only set up as de.glassdoc.org but will eventually become available as en.glassdoc.org as well.
 * Gmail Wiki (www.gmailwiki.com) : links and resources on Google's Gmail.
 * Grokdoc w:Grokdoc : Linux usability
 * Gueststars Wiki w:Gueststars Wiki (wiki.gueststars.net ) : an organisation with the aim of applying the Open Source creative paradigm to general creative cooperation
 * GuitarWiki.com (www.guitarwiki.com/) : Guitar resource with lessons about the guitar, tablature, a list of guitar terms and more
 * HeiseForenWiki w:HeiseForenWiki : http://www.thewalrus.info/heisewiki/index.php/Hauptseite
 * Hierarchypedia (www.hierarchypedia.com) : Information on people and organisations.
 * HipHop.net.au (hiphop.net.au) : the Australian Hip Hop Wiki
 * Holopedia.net (www.holopedia.net/) : An experimental Wikipedia-like project in Taiwanese (read-only after May 2004 when zh-min-nan: came into existence).
 * Homestar Runner Wiki (www.hrwiki.org/) : The most complete compendium of information about the popular internet cartoon site HomestarRunner.com
 * HorologicalWiki w:HorologicalWiki (www.clockmakers.archivist.info) : a Clock and watchmakers wiki GFDL licence
 * HupWiki w:HupWiki (wiki.hup.hu): Hungarian w:UNIX/w:Linux/w:Free software wiki
 * infoAnarchy wiki w:infoAnarchy wiki (www.infoanarchy.org/wiki) : on file sharing, copyright, cyber liberties, and related issues
 * infopoint (infopoint.jonobacon.org/) : - an group for promoting open source systems at computer fairs
 * Infosecpedia w:Infosecpedia - an information security encyclopedia : handbook, and how-to guide: http://www.securitygroup.org/pedia/wiki.php?title=Main_Page
 * InvisibleChat w:InvisibleChat (www.invisiblechat.com) : wiki for an IRC network based on w:IIP
 * Jewpedia w:Jewpedia (www.jewpedia.com) : first collaborative encyclopedia about w:judaism, currently avaible in French http://www.jewpedia.com, and powered by Torati
 * Kent Paranormal Investigations (kpi.mine.nu/wiki) : All are welcome to visit.
 * Libertarian Wiki (libertarianwiki.org) : encyclopedia to promote w:libertarianism by facilitating activism.
 * Link Exchange Directory (kombiz.com/wiki/index.php/Internet:Directory) : Link Exchange. All are welcome.
 * LinuxQuestions.org w:LinuxQuestions.org - This site will allow you to not only learn about all things Linux : but will also allow you to share your knowledge. http://wiki.linuxquestions.org/
 * LitWiki (litmuse.maconstate.edu/litwiki/) : is a site dedicated to English Studies, both literary and composition, with a bit of theory thrown in.
 * LobbyWatch w:LobbyWatch (www.lobbywatch.de) : collecting information about lobbyism in Germany
 * Lyrics Wiki (lyrics.crosscourt.org) : A wiki-based lyrics database. Effort to create correct and complete lyrics by using the community process instead of a set number of admins.
 * MaatWorks (maatworks.wikinerds.org) : The software engineering project of the Wikinerds Community
 * MacHackers (www.machackers.de) : public "notepad" of the german Macintosh scene
 * Man-Wiki (www.man-wiki.net) : intended as a reference for Linux man-pages
 * Medipedia (www.medipedia.org) : A GNU/FDL Free Medical Encyclopedia. English, Spanish, German and French interfaces.
 * Memory Alpha w:Memory Alpha (www.memory-alpha.org) : a Star Trek reference
 * Military Mail Infos (www.bw-feldpost.de/mediawiki) : pictures and of course many cards and letters from soldiers of various nations delivered by APO's:
 * Millstone Community Wiki (community.millstone.org) : Millstone Community Wiki
 * Move Zig (www.movezig.org/) :, the internet pop culture wiki.
 * MozillaZine Knowledge Base (kb.mozillazine.org/index.phtml?title=Knowledge_Base) :, all about the various w:Mozilla projects.
 * MVlife Open Source w:MVlife Open Source (www.mvlife.com/wikimvlife/) :
 * Naming Schemes (namingschemes.com) : Fun wiki useful for browsing naming schemes
 * NerdyPC (www.nerdypc.org) : Hardware Review Site and Information Technology Knowledge Base. A project of the Wikinerds Community.
 * Newlimits (www.newlimits.org) : est un site dédié aux techniques alternatives. Newlimits is a site dedicate to alternative's technics (French).
 * NYWiki (www.nywiki.com) :, a wiki about New York City, including annotated street maps
 * 08SYS: community wiki for 08SYS the University of Waterloo's Systems Design Engineering class of 2008
 * OpenFacts w:OpenFacts : a wiki dedicated to collaboratively working on w:open source software documentation in multiple languages: http://openfacts.berlios.de/index-en.phtml?title=Main_Page
 * OpenTTD wiki (wiki.openttd.org/index.php/Main_Page) : for writing the manual for the Transport Tycoon clone OpenTTD
 * OPwiki w:OPwiki : a wiki in German about online publishing: http://linding.ch/op/opwiki/
 * OrangutanMedia (appserv.lsi.upc.es/palangana) : Related to històrical, social and ethical aspects of TIC. Its in the Technical Univestiy of Catalunya. Spanish/English/Catalan
 * OurAnswer w:OurAnswer : responses to talks and speeches made by politicians, business leaders and other important people: http://www.ouranswer.org/
 * PANtheon (www.e-pantheon.tk) : Dutch wiki deticated to mythology.
 * PedalPedalWiki : Attempt at a complete documentation of the history, tricks, bikes, people, places and ramps of BMX Bike Stunt Riding.
 * Perrypedia : a Perry Rhodan encylopaedia http://www.perrypedia.proc.org/
 * PESWiki.com (peswiki.com/) : specializing in 'free energy' technology, using wikimedia to build encyclopedia, news, open sourcing technology, events, PAC, academy, library and more.
 * Potterpedia (maennerseiten.de/harry_potter/wiki/index.php/) : German Wiki for Harry Potter Fans
 * PTWiki (www.powertabs.net/wiki/) :, a wiki for the Power Tab Editor and Power Tab Archive
 * ReiseWiki (reisen.wikiwelt.de) : is a German Wiki providing personal travel experiences
 * RexDB (www.rexroderecords.com/wiki/index.php/Main_Page) : RexDB is an online contact database with a focus towards those in the music industry looking for contacts. While currently very little is available, the database looks to become the defacto contact location for any musician. Not only does RexDB provide contact information, it allows those who use the service to add to the list of available contacts by allowing users to edit the pages they find necessary. There are instructions available on each section of the database.
 * RezepteWiki (in German) (rezeptewiki.de) :, allerlei Rezepte für jede Gelegenheit. Von allen, für Alle und vor allem für diejenigen, die genug haben von dialer- und virenverseuchten Kommerz-Scherz-Seiten
 * SAUwiki (SAUwiki.com) :  is wiki for the students of Southern Adventist University
 * ScienceProblems w:ScienceProblems : a collection of problems, exams and their solutions for undergraduate and graduate students of science and engineering. Available at http://scienceproblems.com
 * SFwiki w:SFwiki : a comprehensive science fiction and fantasy encyclopedia, http://www.infoshop.org/sf/index.php/Main_Page
 * Soccer replica jersey (www.truefootball.com) : collection featuring a information and history of hundreds of soccer jersey from all the world.
 * SocSci (mads.warhead.org.uk/socsci/wiki/) : is a Wiki dedicated to the social sciences. At this time subjects include, political science, sociology and economics.
 * Spanish Archive : a one stop resource for English speakers learning Spanish. Also translates books, such as the Wizard of Oz into Spanish.
 * SourceryForge w:SourceryForge : "a general purpose resource on esoteric subjects." http://sourceryforge.org/wiki.phtml?title=Main_Page
 * Stamps Glossary (www.stamps-auction.com/glossary/index.php/Main_Page) :, for people collecting stamps, covers, postcards
 * Stockepedia w:Stockepedia : an encyclopedia of stocks
 * Swarm Wiki : under construction: http://cscs.umich.edu:8123/wiki/Swarm_wiki
 * Symbolwiki w:Symbolwiki (www.symbolwiki.org) : a multilingual project for collaboratively designing pictographs (based on Chinese) representing basic human concepts. Designed to be ideal for assembly as a high-level visual language that bypasses w:phonetics. Uses the w:GNU FDL.
 * Teleformpedia (redteleform.me.gov.ar/nodo_mecyt/pedia/) : documentador de la Red Federal de Teleformación
 * The Xbox Linux Project (www.xbox-linux.org) : a project to run Linux on an Xbox
 * The Metaweb w:The Metaweb : currently annotating w:Neal Stephenson's novel Quicksilver.
 * Theopedia.com (www.theopedia.com) : A wiki dedicated to Christian theology. Encyclopedia of "all things Christian." An evangelical site.
 * Trutheism.com (www.trutheism.com/wiki/) :, "A website that's about protecting and upholding The Truth, The Whole Truth and Nothing But The Truth": http://www.trutheism.com/
 * Tulipedia (www.tulipedia.org) :, an encyclopedia on Calvinism.
 * Tuxfutter : a german wiki for users who want to migrate from Windows to Linux. http://www.tuxfutter.de
 * Unilang w:Unilang Wiki : "a community for and by language freaks", http://eu.unilang.org/wiki/
 * VagueWare.com (vagueware.com) : could, with a lot of hard work, one day become vaporware. It's hard to define what the site is, but you can start here
 * Vegan Club Wiki (www.veganclub.com) : A Wiki for the vegan community
 * Warhammer Wiki (www.lesoctets.net/wiki) : French Wiki about the Warhammer universe.
 * WeeKee (in french) (fr.weekee.org) : a Canadian general OpenContent wiki. (english language version)
 * Wiki de Disciplinas (tainha.lab.ic.unicamp.br) : Wiki de Disciplinas do Centro Acadêmico da Computação da Unicamp/BR (Wiki of Courses of computation students in State University of Campinas/Brazil]
 * Wiki Sex Site (www.wikisexsite.com) : The first sex site to use wiki tecnology to build a sex encyclopedia and a pool of sex stories for adults. http://www.wikisexsite.com
 * wiki.openap.net (wiki.openap.net) : German Wiki for coordinating the build-up of a free 802.11 network at lower-rhine/nrw/germany. Wiki starts at midmonth of october.
 * Wiki.Typhon.net (wiki.typhon.net) : Public wiki (in french) for Typhon.net's websites users.
 * wiki.typo3.org (wiki.typo3.org/index.php/Main_Page) : (english, french, german, more...) TYPO3 documentation project wiki. This Wiki collect and centralize any documentation effort related to the TYPO3 CMS. Feel free to join our documentation effort.
 * WikiCulture (www.wikiculture.org/) : a wiki-based knowledge base on natural sciences (mathematics, computer science, etc.) mainly in Chinese and cultural topics in both Chinese and other major foreign languages: http://www.wikiculture.org/
 * Wikidemia (www.wikidemia.org) : WIKI based academic discussion site.
 * Wikilaw w:Wikilaw : leverages wiki version control to monitor the evolution of (currently : french) law: http://wikilaw.free.fr/
 * WikiMD.org (www.wikimd.org) : Open Source Medical and USMLE encyclopedia A new Dedicated Wiki building an w:Open Source Medical w:Encyclopedia
 * WikiP2P (www.wikiP2P.com) : The P2P documentation center (in french).
 * wikiRPG (www.invariant.org/media) : A collaborative attempt to make a universal pen-and-paper RPG engine.
 * Wikitravel w:Wikitravel : a wiki-based travel guide: http://www.wikitravel.org/
 * WikiWood (www.wikiwood.com) :, a user-grown wood working and related reference: http://www.wikiwood.com
 * Wombat : the Planet Magazine, Free Bazaar: http://now.ohah.net/en/ (http://now.ohah.net/ja/ Japanese)
 * WordPress Codex (www.codex.wordpress.org) : Striving to be a complete reference source for the open-source blogging tool, WordPress
 * WormWiki : the free Worms encyclopedia: http://wiki.fullwormage.com/
 * www.kaffeewiki.de (www.kaffeewiki.de) : German Wiki for Espresso Fans
 * www.kombiz.com (www.kombiz.com/wiki) : Travel, Hotel, Web Hosting and Certification
 * XuuuuWiki w:XuuuuWiki (www.xuuuu.com/wiki) : a Simplified Chinese Wiki About SoulSeek
 * XyloWiki : the Xylobot script wiki: http://xylowiki.franciscrick.com/wiki.phtml

Public personal wiki installations

 * 1) Adam's personal wiki: http://www.gessaman.com/wiki/
 * 2) AlpineWiki, Aaron Lee Peterson's information exchange. Free Software and Personal Info
 * 3) Anderswiki, a german wiki for everything that is different. (offline or hacked?)
 * 4) AWARE ARG Guide is a player maintained guide for the Alternate Reality Game AWARE. The game is played primarily online with real world elements to make it more fun.
 * 5) CenterLeft.net - blog and travel information repository
 * 6) Eric Shao-yu Cheng: http://fractal.csie.org/~eric/wiki/Main_Page
 * 7) CincyWiki: Open Source Government in Cincinnati, Ohio.
 * 8) a wiki for FIRST: Ultimate Robot Challenge, a game being developed by FIRSTers to digitally recreate the FIRST Robotics games. (Caution: a little slow)
 * 9) The Gentoo-Portage Wiki Created to give people a place to put HOWTOs, tips and general Gentoo/Linux information.
 * 10) Hospedagem sites Public portuguese wiki, alfa version.
 * 11) Liao's wiki for personal online notes
 * 12) Iluvitar's wiki http://www.iluvitar.com/sections/wiki/ (the skin is not selectable and different from the usual three)
 * 13) Inside Magic A Site for the Free Exchange of News, Reviews and Ideas Concerning the Art of Magic as Entertainment.
 * 14) KiwiMusic.Info A wiki database for New Zealand music.
 * 15) MBApedia an open and free busness encyclopedia. Hosted by a University of Michigan Business School student.
 * 16) Means and Ends, a site for a game of Nobilis (a role-playing game), running a version of the Wikimedia code modified slightly by S. Ben Melhuish
 * 17) meditorworld, a MathML-in-MediaWiki proof of concept (MathML capable browser needed, tested to work with Mozilla).
 * 18) Mineralienatlas wiki: http://www.mineralienatlas.de/phpwiki/
 * 19) OberWiki for Oberlin College
 * 20) OekonuxWiki -- wiki of the w:Oekonux project. Topic: Can free software serve as the base for a new society?
 * 21) The Othello Wiki Book Projekt
 * 22) Plastic Tub Repository of Associationalist history, documents, art.
 * 23)  PotatoWiki.
 * 24) SockLabsWiki a personal refference and dictionary
 * 25) SwingWiki - Can a wiki help you dance better?
 * 26) TriPU Documentation wiki for the TriPhoenix homebrew CPU project
 * 27) Ursine, a wiki searching for topics.
 * 28) Uruguay Orlando  is a nonprofit organization dedicated to help Uruguayan inmigrants living in Orlando and all Central Florida area. We are experimenting wiki in some sections of our web site to create a dinamic comunication medium between the people living in USA and between their relatives in Uruguay
 * 29) VDR Wiki a Wiki Manual for the digital VDR (Video Disk Recorder)
 * 30) Western Wiki, "a free forum" wiki for Western College, Miami University
 * 31) WestGuard, a site for a game of Champions (a role-playing game), using a XHTML and CSS standards-compliant skin by Brandon Blackmoor
 * 32) Wiki of the Squid, an electronic journal of a Dark Sun campaign run by Has Chaudhuri
 * 33) Zefania XML Wiki, a german wiki for Zefania XML Biblesoftware.
 * 34) Victoria, a wiki about a web comic called The Midlands.
 * 35) Kalez, a wiki about a group of friends!
 * 36) WickleWiki a wiki to maintain and coordinate development projects, and their documentation.
 * 37) Winslow's Lair Wiki, a personal wiki
 * 38) Tome of Dorgoth, a Wiki campaign world for the role-playing game Dungeons and Dragons (English; everyone can contribute)

Private company wiki installations

 * 1) ASPM
 * w:Gartner
 * 1) FireBright, Inc. The Open Source CMS company.
 * 2) Aperture Technologies, Inc. see NickP
 * 3) Creative Usa Corporation web design and consulting company.
 * 4) Mvlife
 * 5) Omnistrong small business marketing
 * 6) Sydney Boys High School Debating Contribution System
 * 7) Adam Internet
 * 8) IT/Linux Days event planning
 * 9) NVIDIA uses MediaWiki for some internal documentation
 * w:Novell as the official internal Wiki implementation
 * 1) InterAKT Online, a Dreamweaver extensions maker, uses MediaWiki for spec'ing the next generation of its products
 * 2) log internet consulting, a opensource consulting firm in Portugal

Other

 * 1) Distributed Proofreaders' software uses MediaWiki's difference engine for viewing differences between proofed pages.
 * 2) jôhô shakai [情報社会] is a collaborative wiki project maintained by students of the ICT&S Center @ The University of Salzburg.