Bill Haneman <bill.haneman@sun.com>
  High Contrast engine

Suzanna Smith <suzanna.smith@sun.com>
  High Contrast icons

Calum Benson <calum.benson@sun.com>
  High Contrast icons

Seth Nickell <snickell@stanford.edu>

Andrew Johhson <aj_genius@hotmail.com>
  Smooth engine

Dave Camp <campd@ximian.com>
  Mist GTK & Marco

Tuomas Kuosmanen <tigert@gimp.org> 
  Default Marco, icons, gtk

Jakub 'jimmac' Steiner <jimmac at ximian dot com> 
  Default icons, Smokey-Blue|Red icons

'ueluei' <ueluei@telefonica.net>
  Smokey Marco (from 'Alloy-C')

Paul Hendrick <an_appleseed_cast@btopenworld.com>
  Smokey Blue GTK (from 'Fishing the Sky')

Jeff Waugh <jdub@perkypants.org>
  Grand-Canyon GTK (from 'WaterLuna')

Isriya Paireepairit <mk@project-ile.net>
  Ocean Dream marco (aka 'Sandwish')

Tony Pace <tony712@excite.com>
  GrandCanyon GTK (from 'WaterLuna')

Susan Kare
  Mist (aka 'Flat-Blue') icons, Sandy icons

John Harper <jsh@pixelslut.com>
  GTK1 version of Crux GTK

Arlo Rose
  Crux icons, GTK, & Marco

Tim Gerla <timg@rrv.net>
Tomas Ögren <stric@ing.umu.se>
Richard Hult <richard@imendio.com>
  ThinIce engine

Jakub Stainer <jimmac@novell.com>
Luca Ferretti <elle.uca@libero.it>
  HighContrast-SVG icons

ceramicm <http://gnome-look.org/usermanager/search.php?username=ceramicm>
  Aldabra

Jean-Philippe Fleury <contact@jpfleury.net>
  TraditionalOk gtk3 (from Clearlooks-Phenix theme)

Wolfgang Ulbrich <chat-to-me@raveit.de>
  GreenLaguna based on GnomishBeige theme
  Menta based on Zukwito theme
  BlackMate based on GnomishDark theme
  TraditionalGreen based on Clearlooks-Phenix theme

Pedram Pourang <tsujan2000@gmail.com>
  (http://tsujan.deviantart.com/art/GnomishBeige-300113500)
  (http://tsujan.deviantart.com/art/GnomishDark-300548460)

Mattias aka lassekongo83 
  (http://lassekongo83.deviantart.com/art/Zukitwo-203936861)