The following have contributed to QGis:
Gary E.Sherman <sherman at mrcc dot com>
Steve Halasz <stevehalasz at users.sourceforge.net>
Marco Hugentobler <mhugent at users.sourceforge.net>
Carl Anderson
Masaru Hoshi
Radim Blazek <blazek at itc.it>
Denis Antipov <rawbytes at users.sourceforge.net>
Mark Coletti <mcoletti at users.sourceforge.net>
Christoph Spoerri <spoerri at users.sourceforge.net>