European Met services have formed consortia for cooperative development of numerical weather prediction. Each consortium advances its own model for the operational and research needs of its members. See:
A Consortium for COnvection-scale modelling Research and Development
COnsortium for Small-scale MOdeling
regional cooperation for Limited Area modeling in Central Europe
United Kingdom's meteorological service
South-East European Consortium for Operational weather Prediction
ALADIN & HIRLAM:
sites discontinued since 2021, any info found at ACCORD's site
World Meteorological Organization
European Centre for Medium-Range Weather Forecasts
European Organisation for the Exploitation of Meteorological Satellites
American Meteorological Society
The Royal Meteorological Society
European Meteorological Society
European Forecasters Cooperation Group
Nordic Multi-Scale Modelling of Atmospheric Environment