The following persons contributed to OTRS:
- 1soproni csaba@sopron.hu
- Alex Kantchev ak@otrs.com
- Alex Mazur alex.mazur@otrs.com
- Alexandre D. Rogoski alexandre@exatati.com.br
- André Brás andre.bras@otrs.com
- Balázs Úr urbalazs@gmail.com
- Belnet info@belnet.be
- Bernhard Schmalhofer bernhard.schmalhofer@otrs.com
- Bodo Bauer bodo.bauer@otrs.com
- Burchard Steinbild burchard.steinbild@otrs.com
- Carlos Garcia carlos.garcia@otrs.com
- Carlos Rodriguez carlos.rodriguez@otrs.com
- Christian Schöpplein christian.schoepplein@otrs.com
- Christopher T. Kuhn christopher.kuhn@otrs.com
- Cyrille Bollu info@belnet.be
- Daniel Zamorano daniel.zamorano@otrs.com
- David Crimi deathpoison.dc@gmail.com
- Denis Nelubin dnelubin@gmail.com
- Dennis Schmelter dennis.schmelter@otrs.com
- Diego Selzlein diegoselzlein@gmail.com
- Dietmar Berg dietmar.berg@thalesgroup.com
- Dominik Klein dominik.klein@otrs.com
- Dusan Vuckovic dusan.vuckovic@otrs.com
- Elias Probst elias.probst@otrs.com
- Elva Novoa elva.novoa@otrs.com
- Enrique Matías Sánchez (Quique) cronopios@gmail.com
- Felix Niklas felix.niklas@otrs.com
- Florian Liebe florian.liebe@otrs.com
- Friedrich Delgado friedel@nomaden.org
- Gerald Young gerald.young@noynim.com
- Henning Oschwald henning.oschwald@otrs.com
- IB Development Team dev@ib.pl
- Igor Djuric igor.djuric@otrs.com
- Jan Steinweg jan.steinweg@otrs.com
- Jaroslav Balaz jaroslav.balaz@otrs.com
- Jens Bothe jens.bothe@otrs.com
- Jens Pfeifer jens.pfeifer@otrs.com
- Johannes Hörburger johannes.hoerburger@otrs.com
- Johannes Nickel hanne_hal@me.com
- Keith Moore tenareth@gmail.com
- Luca Maranzano liuk@linux.it
- Manuel Hecht manuel.hecht@otrs.com
- Marc Bonsels marc.bonsels@otrs.com
- Marc Nilius marc.nilius@otrs.com
- Marco Buchholz marco.buchholz@otrs.com
- Marco Bucholz marco.buchholz@otrs.com
- Marco Ferrante marco@csita.unige.it
- Markus Esche markus.esche@otrs.com
- Martha Pascual martha.pascual@otrs.com
- Martin Edenhofer martin.edenhofer@otrs.com
- Martin Gross martin@pc-coholic.de
- Martin Gruner martin.gruner@otrs.com
- Mathias Bräunling mathias.braeunling@otrs.com
- Michael Tänzer neo@nhng.de
- Michiel Beijen michiel.beijen@otrs.com
- Milan Rakic mrakic@s7designcreative.com
- Moritz Lenz mlenz@noris.net
- NeverMin never.min@gmail.com
- Niels Dimmers niels@nielsdimmers.nl
- Nils Leideck nils.leideck@leidex.net
- Nils Leideck nils.leideck@otrs.com
- Norihiro Tanaka noritnk@kcn.ne.jp
- Oberson Dylan dylan.oberson@epfl.ch
- Oliver Tappe oliver.tappe@otrs.com
- Olivier Sallou olivier.sallou@irisa.fr
- Patrick Brischler patrick.brischler@otrs.com
- Patrick Rauscher prauscher@ohai.su
- Paul Waring paul@xk7.net
- Peter Krantz peter@peterkrantz.se
- Ralf Hildebrandt hildeb@charite.de
- Raphaël Doursenaud rdoursenaud@gpcsolutions.fr
- Renée Bäcker info@perl-services.de
- Richard Kammermayer richard.kammermayer@otrs.com
- Rolf Schmidt rolf.schmidt@otrs.com
- Romain THERRAT romain42@gmail.com
- Rui Patinha rui.patinha@otrs.com
- Sanjin Vik svik@s7designcreative.com
- Shawn Beasley shawn.beasley@otrs.com
- Stefan Bedorf stefan.bedorf@otrs.com
- Stefan Rother stefan.rother@otrs.com
- Stefan Wintermeyer stefan@otrs.org
- Theo van Hoesel Th.J.v.Hoesel+GitHub@gmail.com
- Thomas Raith thomas.raith@otrs.com
- Thomas Wouters thomas@sijn.org
- Thorsten Eckel thorsten.eckel@otrs.com
- Torsten Thau Torsten.Thau@cape-it.de
- Udo Bretz udo.bretz@otrs.com
- Uwe Dieckmann uwe.dieckmann@otrs.com
- Walter Souto walter.souto@saude.go.gov.br
- Wojciech Kuchta klapi85@gmail.com
- Wojciech Kuchta wojciech.kuchta@allegro.pl
- Zoran Ilibasic zilibasic@s7designcreative.com
- anonymous uknown@anonymous
- djurici igor.djuric@muehlbauer.de
- juanmclavero juanm.clavero@ibsalut.es
- otrsintern otrsintern@gmail.com
- s7design otrs@s7designcreative.com
- sergot filip@sergot.pl
- vlascoder vlascoder@gmail.com