Position R1-UvA: Continuous cavity enhanced Sr clocks – University of Amsterdam, NL
Position R2-UvA: Multi-ensemble, zero-deadtime, non-demolition readout Sr clock – University of Amsterdam, NL
Position R3-UoB: Compact vacuum chamber suitable for a transportable optical lattice clock operating at 5×10^-18 – University of Birmingham, UK
Position R4-UoB: Field deployable optical lattice clock with performance better than 1 part in 10¹⁶ – University of Birmingham, UK
Position R5-CNRS: continuous superradiant emission on the ¹S₀ → ³P₀ clock transition of ytterbium – FEMTO-ST, France
Position R6-CNRS: Continuous-wave superradiant lasing from a cold-atom beam – Laboratoire de Physique des Lasers, France
Position R7-CNRS: QND measurements in strontium optical lattice clocks in the classical and quantum regimes, Laboratoire Temps-Espace, France
Position R8-UCPH: Testing the fundamental limits of superradiant lasers – University of Copenhagen, Denmark
Position R9-INRIM: Engineering quantum states and metrology in hybrid cavity lattice clock – INRIM, Italy
Position R10-UMK: Superradiant Sr clock with sequential loading – Nicolaus Copernicus University in Toruń, Poland
Position R11-TUW: Theory and numerical simulations for the development of continuously operating clocks​ – Technische Universität, Wien, Austria
Position R12-UIBK: Modeling and new operation modes of cavity enhanced optical clocks​ – University of Innsbruck, Austria
Position R13-MEN: Development and future maturation of optical clocks based on hot atomic vapors or atomic beams ​​- Menlo Systems, Germany
Position R14-NKT: Tools for optical control of atomic clock transitions – NKT Photonics, Denmark
Position R15-QUBIG: Compact light conditioning modules for the visible spectrum – QUBIG, Germany