The list of enterprise ready open source Wiki software

Many wiki software have been popping around after Wikipedia made MediaWiki a Gorilla of this jungle. If there are many open source wiki software, a very few have the features enterprise are looking for: fine-grained security, collaboratively working on business documents, import/export of wiki pages from/to word, abilities to be integrated in corporate directory and other IS components like portals. XWiki is probably the more enterprise ready open source wiki software, and able to compete with Atlassian Confluence, the leading proprietary wiki software.  To make your mind, here is a list of the most popular open source Wiki software to collaborate in the enterprise:

Leading open source Wiki software

Other open source Wiki software

Tiki CMS/Groupware, also known as TikiWiki, is a powerful web-based Groupware and Content Management System (CMS), using PHP, ADOdb and smarty. It can be used to create all sorts of Web applications, Sites, Portals, Intranets and Extranets. It’s developed by a large number of contributors that form the TikiWiki Community.
FlexWiki is an open source wiki software based on Microsoft .NET technologies.
PhpWiki is an open source wiki software written in PHP. interesting wiki features like Multiple storage backends, dynamic hyperlinking, themeable, scriptable by plugins, full authentication, ACLs and semantic wiki features.
SnipSnap is an open source weblog and wiki software written in Java.
TiddlyWiki is a single HTML file which has all the characteristics of a wiki – including all of the content, the functionality (including editing, saving, tagging, and searching) and the style sheet. Because it’s a single file, it’s very portable – you can email it, put it on a web server or share it via a USB stick.
WikyBlog is a collaboration software that fuses the collaborative editing features of wikis with the user-friendly publishing characteristics of blogs.
JSPWiki is a feature-rich and extensible Wiki software built around the standard J2EE components (Java, servlets, JSP).
ScrewTurn Wiki is an open source wiki software that allows you to create, manage and share wikis. ScrewTurn Wiki can be extended and customized with plugins and themes. It can store data using a simple, built-in file-system provider or, if you need performance and scalability, it can use SQL Server or MySQL. If you use Active Directory, you can integrate with that too. ScrewTurn Wiki is a free and open source (GPLv2), meaning that you can use and modify it without limitations. In case GPLv2 is inadequate for your needs, we also offer commercial licenses.