LibreOffice Certified Developers

LibreOffice Certified Developers are individuals who have proven their ability to master LibreOffice code: to develop new features; provide L3 Support to enterprise users; research and develop solutions to new or unknown issues; design and develop one or more courses of action to correct these issues; evaluate each of these courses in a test case environment; and implement the best solution to the problem. Once the solution is verified, it is delivered to the customer and given back to the community.

Certified Developers are present TDF members, are nominated by the Certification Committee, and subsequently peer-reviewed by the Engineering Steering Committee.



phone +49 (89) 14360 -454 (en) or -444 (de)

Jürgen Funk

Serge Krot

Vasily Melenchuk



phone +44 (0)1223 362967

Aaron Budea

András Timár

Ashod Nakashian

Attila Szűcs

Caolán McNamara

Dennis Francis

Gülşah Köse

Henry Castro

Justin Luth

Luboš Luňák

Marco Cecchetti

Michael Meeks

Mike Kaganski

Miklos Vajna

Noel Grandin

Pranav Kant

Szymon Kłos

Tomaž Vajngerl



phone +49 40 2093 4085 0

Armin Le Grand

Balázs Varga

Gábor Kelemen

Jan-Marek Glogowski

Kohei Yoshida

Michael Stahl

Samuel Mehrbrodt

Sarper Akdemir

Stephan Bergmann

Thorsten Behrens

Tibor Nagy

Red Hat

David Tardon

Eike Rathke


Fridrich Strba


Attila Bakos

The Document Foundation

Christian Lohmaier

Hossein Nourikhah

Xisco Faulí Tarazona

Michael Weghorn


Andreas Heinisch

Bartosz Kosiorek

Bjoern Michaelsen

David Ostrovsky

Jan Holesovsky

Jim Raykowski

Katarína Behrens

László Németh

Mark Hung

Muhammet Kara

Patrick Luby

Regina Henschel

Rene Engelhard

Tamás Bunth

Tor Lillqvist

Tünde Tóth

Notes on the aforementioned entries: our list of certified developers is for your information, randomized, and not necessarily complete nor up-to-date. Specifically, TDF does not recommend nor endorse any of the listed companies. Interested parties are asked to assess individually if the listed companies are suitable for their respective requirements. If you notice mistakes or inaccuracies, please inform us at info@documentfoundation.org.

This list is a small subset of those who have committed code to the project, and a subset of those with commit rights who can commit code to the project. This list is expected to grow over time, as more of the existing contributors go through the certification process.