Bjørnar Henden
Most work (through version 1.0.0) was done by him. He also started develop the first version for .NET v2.0.
Jaben Cargman
Started working on YAF in 2004. Took control of the project from Bjørnar Henden in July 2006. Now maintains and heads YetAnotherForumNET.
Andrew Reed (Mek)
Forum contributor from version 1.00 RC2 onwards. Joined the development team officially in July 2006. Wrote most of the provider implementation for v1.9.3. A regular on the support forum helping answer support questions.
Daniel Scibrany (Ederon)
Daniel helped a lot with v1.9.3 development and getting the code into shape. Also a regular in the forum answering support questions.
Scott Whigham
Forum contributor for 1.90 including database help, url rewriting, social bookmarking and xhtml-related options. Also wrote a non-Web Application Project implementation. Author of http://www.learnsqlserver.com and http://www.learncsharp.com
Willie Tilton
Helping with YAF since 2006. Added points system, post to blog and has assisted with many issues on the software.
Other Helpers
Andreas Botsikas
Björn Atle Isaksen
Justin Wendlandt
Michael Thomas
Alec Whittington
Albert KRawczyk
Ricardo Meechan