Post Danmark A/S is the national provider of postal services in Denmark. It was established as a fully state-owned stock holder's company in 1995 following political liberalization efforts. Post Danmark had taken over the mail delivery concession of its predecessor, the governmental department Postvæsenet, which was established in 1624. Post Danmark A/S was turned into a public limited company in 2002. In 2005, 22% of the company shares were sold to CVC Capital Partners, 3.5% of the company shares were partly sold to employees at a discount, partly kept in reserve for a management incentives program. In 2009, it was merged with the Swedish Posten AB to form PostNord, a joint postal service company between Denmark and Sweden.

PostNord Sverige is the name of the Swedish postal service. In 2009 Posten merged with its Danish equivalent, Post Danmark A/S, forming PostNord AB, a holding company that is jointly owned by the Swedish (60%) and Danish (40%) governments. A rebranding to PostNord for both the mail and logistics divisions was performed in 2015.