Our consortium brings together all the European national metrology institutes (NMIs) and three universities active in the field of optical atomic clocks. Other NMIs and external partners bring in additional facilities and expertise, such as optical fibre links to enable optical clock comparisons or experience in algorithm development.

		National Physical Laboratory (NPL) UK
		Cesky Metrologicky Institut (CMI) Czech Republic
		Central Office of Measures (GUM) Poland
		Istituto Nazionale di Ricerca Metrologica (INRIM) Italy
		Laboratoire national de métrologie et d’essais (LNE) France
		Observatoire de Paris (OBSPARIS) France
		Physikalisch-Technische Bundesanstalt (PTB) Germany
		VTT Technical Research Centre of Finland Ltd National Metrology Institute VTT MIKES (VTT) Finland
		Ben-Gurion University of the Negev (BGU) Israel
		Centre National de la Recherche Scientifique (CNRS) France
		Gottfried Wilhelm Leibniz Universität Hannover (LUH) Germany
		Politecnico di Torino (POLITO) Italy
		Centrum Baden Kosmicznych Polskiej Akademii Nauk (SRC PAS) Poland
		Uniwersytet Mikolaja Kopernika w Toruniu (UMK) Poland
		Université Paris 13 (UP13) France