Yes, you can contact any of the pension funds into which you have paid and obtain a password to the fund members’ website. There you will find a statement showing all the pension funds into which you have paid.
Furthermore, you are able to view all your rights by entering the Pension Portal. Pension members can gain access to the Pension Portal on the websites of the pension funds using the same password as for the website of the pension fund in question.
When you start to receive a pension, it is sufficient to apply to one fund due to a special agreement between the pension funds. In general, applications are to be made to the fund into which a contribution was paid last, and then the application will be forwarded to the other funds.