The Nahverkehrsservice Sachsen-Anhalt GmbH (NASA GmbH) is a 100% subsidiary of the state of Saxony-Anhalt. On behalf of the state, NASA GmbH plans, orders and pays for regional rail passenger transport. In cooperation with the Mitteldeutscher Verkehrsverbund (MDV) and participating transport companies, it operates the INSA journey planner.

In accordance with its management service agreement with the state of Saxony-Anhalt, NASA GmbH plays an active role in public transport planning and is also responsible for certain aspects of its implementation. Based on the Public Transport Act and the State Public Transport Plan, it works both directly and indirectly to improve public transport services.