Upon specific agreement, the State Archives may accept archives from private sources. This applies to institutions, associations, societies, organisations, companies and private individuals.
The transfer of private archives to the State Archives is voluntary for both parties, and at the time of transfer a specific agreement will be prepared specifying what should be transferred, the conditions for access, etc.
In the efforts to preserve private archives, representatives of the State Archives also participate as members of the Private Archives Committee, which discusses and settles issues of common interest and relevance to collectors of private archives.
The Danish National Archives have a large collection of archives from national institutions and associations as well as private archives and personal papers from politicians, civil servants, etc. The provincial archives store institutional, association and personal archives from their own regions. The Danish National Business Archives consist of the archives of non-government and labour market organisations as well as the archives of Danish enterprises. (However, the archives of the Danish labour movement are stored at the Labour Movement Library and Archive in Copenhagen, which is not part of the State Archives).
Private archives may also be found elsewhere, e.g. the personal papers of artists and other cultural celebrities are mainly stored at the Royal Library. The memoirs, etc., of Danish emigrants may be found in the Danish Emigration Archives at Aalborg which are not part of the State Archives. Archives of purely local interest may be found in local archives which are also not part of the State Archives.