Swiss Neutron monitors and SONTEL [Solar Neutron Telescope Gornergrat]

Mexico City neutron monitor data sets

Moscow neutron monitor (with real-time data!)

Neutron monitor data sets from the University of New Hampshire (formerly at University at Chicago)

Neutron monitor data archive at NOAA (1953 - present)

Oulu Cosmic Ray Station

Neutron monitors of the Potchefstroom University in the southern hemisphere. Link not operational.

Neutron monitor data from Yerevan

Lomnický Stít neutron monitor (Slovakia)