The Onspeed Mobile web site is generated from DocBook Website source.
inxire uses DocBook as the internal document format for their inxire iO enterprise content-management system.
Cray Inc. authors man pages in DocBook XML
NeoDoc proposes a broad range of services for XML data coding and documentation based on DocBook. They also maintain the Borges CMS
FreeBSD documentation (FAQ, Handbook, etc) is written in DocBook
GNOME documentation is written in DocBook
KDE user documentation is written in DocBook
OpenACS uses DocBook XML for their documentation; see their primer
Linux Documentation Project uses DocBook as its standard
Project JXTA uses DocBook XML for their specifications
Spanish Linux Documentation uses DocBook as its main recommendation.
PostgreSQL documentation is written in DocBook
Linux kernel is adopting DocBook for its documentation
CommNav is adopting DocBook for its product documentation
Technohuman uses DocBook as the basis for its Core Information Server publishing framework.
LiveJournal uses DocBook for its server documentation
Importalis uses DocBook for multichannel publishing of its documentation for XML applications.
PHP uses DocBook XML for its documentation, as stated on its documentation HOWTO
Cogent-Real Time Systems uses DocBook for its documentation.
Mitel Networks Corporation Network Server Solutions Group uses DocBook for its documentation process.
Sun uses a customization of DocBook (SolBook) for its documentation, according to a DocBook Presentation from NormanWalsh
SUSE uses DocBook for its documentation of their Administration Guide and User Guide.
Swarm Development Group uses DocBook SGML (migrating to XML) for it's documentation (User, Installation and Reference Guides) and WebsiteDoctype for website.
Debrief uses DocBook for online and printed versions of its user manual, maintained by IanMayo.
MandrakeSoft Documentation Team is using DocBook since 1999 to produce the Documentation (printed and online) for the Mandrakelinux distributions, training manuals, etc.
CSIR has used DocBook for some of their website publication e.g. the LEAD project
WEB.DE uses DocBook for internal software documentation.
Alcove uses a DocBook customisation (AlcoveBook) for various purposes
Clinical DataFax Systems Inc. has been using DocBook since 2000 for all product user and internal software development documentation
Urbana Software uses DocBook for internal software documentation and JavaHelp.
medavis GmbH uses DocBook for internal software documentation
WiredMinds uses DocBook for software documentation
Syngenio AG uses DocBook for software documentation, design guidelines, and software specifications, and internal documentation.
Simtec Electronics are using DocBook for all their products technical manuals.
XML-DEV uses DocBook to create all its documents.
IBM Linux Technology Center uses DocBook for technical publications.
subshell uses DocBook for software documentation and technical publications.
Fillmore Labs uses DocBook for internal software documentation.
The Indic-Computing Project uses DocBook to create technical documentation.
Motive uses DocBook for software documentation, including installation/reference guides and help systems.
Tapestry: Java Web Components uses DocBook to generate documentation.
Axion, an open source, Java based relational database engine uses DocBook to generate its website and related documentation
Jaluna SA uses DocBook to write and publish its online user documentation
iAnywhere Solutions uses DocBook to document its relational database and messaging software.
OASIS ebXML Message Services TC has decided to use DocBook for version 3.x of its specification.
The Open Web Application Security Project OWASP uses DocBook to write and render its OWASP Guide to Building Secure Web Applications and Web Services.
ROBODoc, a software documentation tool, uses DocBook as one of its output formats. In addition it uses DocBook for the user documentation.
Subversion, a compelling replacement for CVS, uses DocBook for its book.
e/t/s didactic media GmbH uses DocBook for its software documentation, including end user manuals.
Praterm uses DocBook for user documentation. We provide a special HOWTO (in Polish) how to deal with various problems in Linux
Fedora Docs Project
SitePoint uses DocBook for all of its books.
The Linux From Scratch (LFS) Project has a Linux from Scratch guide and a Beyond Linux From Scratch guide, both authored in DocBook.
The Implementation Notes for GNU CLISP (GNU Common LISP) are written in DocBook
Documentation for the Schoolbus Project is written in DocBook.
Science Fiction Readers uses DocBook in its library.
InWords TechDoc Solutions develops documentation for technology vendors and open source projects using DocBook.
Metoda Sp. z o.o. uses DocBook to write specifications of Business Processes and Use Cases, for client and its own purposes. Company web site is generated from DocBook sources.
O'Reilly Media is a technical publisher that helped spark the development of DocBook and uses DocBook today as the canonical archival representation of its non-graphic-intensive books and articles (the vast majority). In addition, O'Reilly has started a pure-DocBook workflow for books (from author manuscript to the printer PDFs) (again, as we did this with a few generations of earlier tools)
TortoiseSVN http://tortoisesvn.tigris.org/, Subversion client that integrates with Windows Explorer, includes a great online help
Rackspace uses DocBook for its API documentation.
OpenStack uses DocBook for its guides and API reference documentation.
StreamBase Systems has published its documentation generated from DocBook since 2007.
XML Press uses DocBook for most of its publications.
Producing Open Source Software - a how-to book by Karl Fogel and it's translations (in progress)
MeganGolding uses DocBook at securenetworks.net to write user docs in PDF and HTML output formats and internal docs in primarily HTML output format.
NormanWalsh uses DocBook for just about everything.
JesseProulx uses a small subset of DocBook to write his own novellas.
Philippe BOURCIER uses DocBook for his personnal website and used it same before at ipsl.jussieu.fr to make his website, slides and docs.
MartinWheeler uses DocBook to mark up literary biographies. Also HOWTOs.
Stephan@stephanwiesner.de uses DocBook for writing Tutorials on the web. He is currently working on his diploma thesis concerning a document management system based on docbook.
Chris Maden uses a DocBook-based application to prepare training material for clients, and presented a poster on this work at Extreme Markup 2002. He also prepares white papers for clients as DocBook articles.
MichaelWiedmann uses DocBook for the project TeX-Refs, help and reference files for TeX and his friends.
Togan Muftuoglu uses Docbook for the project Unofficial SuSE FAQ http://dinamizm.ath.cx
Jochen Hein uses DocBook for his website, slides for talks and workshops, his SAP notes, a book for Pearson Education (Source in DocBook, converted into Pearson-DTD with XSLT) and recently for literate programming.
Kevin Dunn wrote a book, Caveman Chemistry, using DocBook SGML. The HTML version of the book is available at Caveman Chemistry. The website uses the DocBook Website DTD and his lecture slides use the DocBookSlides DTD.
Katharina.Udemadu@web.de uses DocBook for different websites, slides, articles, and handbooks.
Devin Bayer is using DocBook to write a rulebook for Full Contact Magic, a LARP.
SeanOleary is learning DocBook to help him prepare Chemical Emergency Plans.
Myrnham Associates provide Courseware Authoring, Customisation & Management software based on Docbook.
Scott Nesbitt uses DocBook XML (and occasionally SGML) to write articles, documentation, and online help. His Web site was created using the Website stylesheets, and he also uses DocBook to create presentations -- mainly with David Cramer's DocBook2OperaShow customization layer.
Christopher Browne uses DocBook for his web site cbbrowne.com, as well as for writing books.
TillyBayardRichard encourages and supports the use of DocBook at http://www.jaluna.com. She is in charge of the publishing process for the user documentation in HTML and PDF.
Arthur Tsai from Taiwan uses DocBook. And he doesn't really do programming. He use docbook format for diary and school-assignment that he wants to preserve. He just likes the idea of XML and hates MS's ".doc" format. He had used XHTML, but it's not precise enough. Although he thinks that docbook is too computer-science-specific, he still thinks it's a good format.
Haisheng Hu is finding out the fascination of Docbook while building his new website at Silent Me. He also customized the stylesheet to fit for XHTML 1.1.
Patrik Olterman uses DocBook for writing course material/slides and a Debian guide for the Unix courses at Nackademin
Jean-Pierre Bouquillon uses Docbook Website and Slides for his website and Book for à nonprofit association of Montelimar France.
S. Alan Ezust uses Docbook for his website, course material, textbook, and other online documentation related to programming language training, in Ottawa Canada.
TammyCravit is using DocBook for business and technical writing, and is experimenting with the use of DocBook and Simplified DocBook for her fiction and magazine writing projects.
CamilleBegnis uses DocBook as much as possible for anything it is suited for.
ReneFeuchtinger uses DocBook for his web site, writing technical documentation and for his AXitd (Applied XML in Technical Documentation) projects
DanielSavarese uses DocBook to maintain his web site and to write books about software development.
Pupeno uses DocBook whenever it's possible. The lasts documents he wrote are in DocBook.
Chris Karakas uses DocBook for all documents on his homepage around his work. He also uses DocBook to create the documentation of his professional IT projects. For all this he uses a procedure that he describes in Document processing with LyX and SGML.
EduardoMercovich uses Docbook for any writing that it´s not in a wiki, i.e., general publishing, be it consulting, the web or special electronic editions of books. He is also trying to spread Docbook use in Argentina, so anyone interested is invited to contact him.
Alex Nadolinski used DocBook for making book building engine of SafariU project and uses it for writing any kind of documentation.
Fred Brown, Allegro Technical Indexing, writes indexes for books and technical documentation created in DocBook.
RichardHamilton uses DocBook for as many things as possible.