Analysis Centers
ESA - ESA/ESOC, Germany 
point of contact: Michiel Otten
GOP - Geodetic Observatory of Pecny, Czech Republic 
point of contact: Petr Stepanek
GRG (formerly LCA) - CNES/CLS, France
point of contact: Hugues Capdeville, Jean-Michel Lemoine
GSC - NASA/GSFC, USA
point of contact: Frank Lemoine
IGN - IGN/IPGP, France 
point of contact: Arnaud Pollet, Samuel Nahmani
INA - INASAN, Russia 
point of contact: Sergey Kuzin
Up to 2012:
GAU - Geoscience Australia, Australia (with support of GSFC) 
point of contact: Ramesh Govind, Frank Lemoine
Associate Analysis Centers
GFZ, Germany 
point of contact: Patrick Schreiner
CNES/POD, France
point of contact: Alexandre Couhert
TU Delft, Netherlands 
point of contact: Ernst Shrama
DGFI-TUM, Germany
point of contact: Mathis Bloßfeld, Sergei Rudenko
Other associated groups:
National Technical University of Athens (NTUA), Greece
point of contact: Maria Tsakiri
AIR-CAS, China
point of contact: Ningbo Wang
Chalmers University of Technology, Sweden
point of contact: Karine Le Bail