NN Group N.V. is a publicly-listed company that is the holding company of various insurance and investment management companies around the world. NN Group N.V. itself is not an actual insurance company.
NN Group N.V. is regulated by the Dutch Central Bank (De Nederlandsche Bank) (DNB). DNB focuses on prudential supervision (the health of financial institutions) and is part of the European System of Central Banks (ESCB). The other Dutch financial sector supervisor, the Dutch Authority for Financial Markets (Autoriteit Financiële Markten) (AFM) is responsible for conduct of business supervision, i.e. assessing the behavior of players in the Dutch financial markets.