As mentioned in our properties and metrics glossary, the property Organisation (d_geo_organisation) corresponds to societies or organisations from where visitors browse the website.
We can obtain this information with the IP address that we transmit to our partner Digital Elements, who gives us organisations back, if these are referenced and linked with the given IP address.
However, these shown organisations can also correspond to ISP or online hosting providers.
ISP: internet service provider from the visitor who is making a visit on one of your website.
Organisation: entities which show publicly IP Adresses belonging them.