Current teammembers:

Mattn [Martin Gerhardy] (Projectleader, Code, Maps, Models, GFX)
Hoehrer [Werner Hörher] (Projectleader, Code, Models, GFX)
Winter [Ryan A. Span] (Lead story developer, Models)

Freelancers:

BTAxis [Bas Fournier] (Storyline Co-Writer)
LordHavoc [Forest Hale] (Technology Consultant)
Sitters [Willem Sitters] (Models)
Zenerka [Maciej Wierzbicki] (Coder)
NineX [Gregory Krzystek] (Hosting/Scripting/Betatester)

IRC:

Server: irc.freenode.org
Channel: #ufoai