It was formed on 19 June 2018 from the merger of BDWM Transport and the Wynental and Suhrental Railway.

Aargau Verkehr formed on 19 June 2018 by the merger of BDWM Transport and the Wynental and Suhrental Railway.

[1] The meger led to the dissolving of the joint AAR bus+bahn brand that had previously united the Wynental and Suhrental Railway and the Busbetrieb Aarau.

[2] AVA owns and operates the following 1,000 mm (3 ft 3+3⁄8 in) gauge railway lines: The company also has the contract to operate services between Zürich Altstetten and Killwangen on the Limmattal light rail line.

These services are operated under contract to Verkehrsbetriebe Zürich (VBZ), and carry that organisation's brand rather than that of AVA.