Transmission is written and maintained by:

Eric Petit <titer@m0k.org>
 + Back-end
 + OS X interface

Josh Elsasser <josh@elsasser.org>
 + Back-end
 + GTK+ interface

Mitchell Livingston <livings124@gmail.com>
 + OS X interface
 + Back-end

Bryan Varner <bryan@varnernet.com>
 + BeOS interface

Translators:

Cédric Luthi
 + French Mac OS X translation

Jorge Carrasco Perez
 + Spanish Mac OS X translation

Ontje Helmich
 + German Mac OS X translation

Thermaikos
 + Greek Mac OS X translation

Calorì Alessandro
 + Italian GTK+ translation

Pierre-Henri Quelen
 + French GTK+ translation

Robert-André Mauchin
 + French GTK+ translation

Vicente Carro Fernandez
 + Spanish GTK+ translation

Tomasz Dominikowski
 + Polish GTK+ translation

Nickolay V. Shmyrev
 + Russian GTK+ translation

Pavel Shevchuk
 + Russian GTK+ translation

Lubomir Marinov
 + Bulgarian GTK+ translation

Mircea Suciu
 + Romanian GTK+ translation

Daniel Nylander
 + Swedish GTK+ translation

Thanks to:

Hugo van Heuven, madebysofa
 + Icon design
 + Mac OS X toolbar icons

Omar and Adrien
 + Beta testing

Various people
 + Writing http://wiki.theory.org/BitTorrentSpecification

vi@nwr.jp
 + Free SHA1 implementation (sha1.[ch])

John Blitch
 + Mac OS X patch (Contextual menu)

Ahmad M. Afuni
 + NetBSD patch

Jeremy Messenger
 + FreeBSD patch

Mike Matas <http://www.mikematas.com/>
 + Previous Mac OS X toolbar icons

Martin Stadtmueller
 + Icon tweaking

FOOOD
 + Various images

Nick Pucius
 + Mac OS X Help documentation

Michael Demars <keul@m0k.org>
 + OS X interface (Growl notifications, AppleScript)

Rashid Eissing
 + Transfers preferences icon
 + Interface conceptualization

Deanna Phillips
 + Manpage for transmissioncli

Thanks to M. Uli Kusterer for use of UKKQueue.