o Time and Frequency Department (E. Peik)
o QUEST Institute for Experimental Quantum Metrology (P. O. Schmidt)
o Junior Research Group: Quantum Sensors with Cold Ions (T. E. Mehlstäubler)
o Department of Quantum Metrology of Length (P. Balling)
o Time and Frequency Department (M. Merimaa)
o Time and Frequency Department (P. Gill)
Laserzentrum Hannover, Germany
o Department Nanotechnologie (Boris Chichkov)
Aalto University, Finland
o Department of Micro- and Nanosciences (Ilkka Tittonen)
Universität Siegen, Germany
o Department Quantenoptik (Christof Wunderlich)
University of Sussex, United Kingdom)
o ITCM Group (Matthias Keller)