Andmekogu vastutavaks töötlejaks on andmekogu omanik. Andmekogu omanikuks võib olla eraõiguslik isik, avalik-õiguslik isik, riik või kohalik omavalitsus.
The Databases Act also mandates the establishment of a state register of databases which registers state and local government databases, as well as databases containing sensitive personal data which are maintained by persons in private law. The chief processor of the register has the right to make proposals to the government, to the chief processors of various databases, and to the state information systems.
