JDR13
" Actually there are 32 people credited, and that doesn't include the music or production teams"

I see multipule listings with only a total of 27 including everything listed under PB, so I am guessing some maybe contractors or temp.
Hodge
Ruve
Pankratz
Filler
Kalveram
Duong
Henriches
Roske
Edenfeld
Holler
Keskenti
Krause
Hendley
Kalka
Pelzer
Bendlin
Lusebrink
Schneider
Marczinczik
Dworczak
Hotz
Rosenkranz
Zanganeh
Meier
Thiel
Berdya
Herholz


Here is what Kai Rosenkranz had to say to the question from Jonric at RPG Vault.
http://rpgvault.ign.com/articles/705/705884p3.html

"Jonric: Where is Piranha Bytes, how large is your team, and did most of you work on the previous Gothic games? "

"Kai Rosenkranz: Most of the team has been together since the first Gothic game, and we are thoroughly dedicated to the brand. We are located in Essen, Germany, and currently employ 19 people - some of us even live in the office and I mean that literally. Gothic 3 will be distributed by Aspyr Media in North America.

Edit
Uggh, wouldn't let me make columns.