CMI, Cesky Metrologicky Institut, Czech Republic

INRIM, Istituto Nazionale di Ricerca Metrologica, Italy

Metrosert, AS Metrosert, Estonia

MIKES, Mittatekniikan Keskus, Finland

NPL, NPL Management Limited, United Kingdom

PTB, Physikalisch-Technische Bundesanstalt, Germany

USMF, The University System of Maryland Foundation, Inc., United States

CEA, Julien Claudon, Commissariat à l'énergie atomique et aux énergies alternatives, France

DTU, Niels Gregersen, Danmarks Tekniske Universitet, Denmark

FAU, Stephan Götzinger, Friedrich-Alexander-Universität Erlangen - Nürnberg, Germany

UdS, Christoph Becher, Universitaet des Saarlandes, Germany

DTU, Jesper Mørk, Danmarks Tekniske Universitet, Denmark

AIT, Austrian Institute of Technology GmbH, Wien, Austria

ETSI, European Telecommunications Standards Institute, Sophia Antipolis, France

IDQ, ID Quantique SA, Carouge, Switzerland

KRISS, Korea Research Institute of Standards and Science, Republic of Korea

MPD, Micro Photon Devices S.r.l., Bolzano, Italy

Toshiba, Toshiba Research Europe Limited, Cambridge, UK

TUB, Technische Universität Berlin, Institut für Festkörperphysik, Berlin, Germany