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AAG in Germany

AAG Germany services the aftermarket through a distributor network comprising three large, independent parts companies – Coler, Bush and Hennig. Its 88 outlets cover the western half of Germany.  AAG is also a leading supplier of OEM parts and has a rapidly growing customer base in this segment of the market.

In 2022, AAG completed the acquisition of Knoll.

With sales of €487million, AAG is now the third largest distributor in the German market.

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AAG Companies in Germany

Busch Handelsgesellschaft

With its headquarters and national distribution centre in Freiburg im Breisgau, Busch GmbH operates 8 distribution outlets in Baden Württenberg in the South West of Germany.

Coler logo

Coler GmbH

With 28 locations mainly in the western region of Germany, COLER is one of the biggest companies in Germany’s automotive aftermarket. A part of AAG since 2015, it is headquartered in Münster, North Rhine-Westphalia.

Hennig Logo


Formed in 1930 and based in Essen, North Rhine-Westphalia, Hennig is one of Germany’s leading and oldest automotive parts distributors, operating from 31 branches across Germany.

Knoll Holding

Knoll operates in Bavaria, Berlin, Brandenburg, Saxony and Thuringia. Knoll was founded more than 90 years ago and operates a nationwide network of 18 distribution centres under the Knoll brand.