The following table shows approximate numbers of users in research and education federations.
| Federation | Numbers |
|---|---|
| AAF (Australia) | >1,000,000 |
| Aconet Identity Federation | A bit below 400k |
| AAI@EduHr (Croatia) | 788,320 |
eduID.cz (Czech Republic) | 400,000 |
| Haka (Finland) | 296,000 |
| Edugate (Ireland) | 220,000 |
| GARR (Italy) | 4,000,000 |
| FEIDE (Norway) | 1,200,000 |
| SURFconext | 716,000 |
| SWAMID (Sweden) | 600,000 |
| SWITCHaai (Switzerland) | 400,000 |
| UK federation (UK) | 10,000,000 |
| InCommon (US) | 8,000,000 |