Copenhagen AirTaxi (CAT) is an aviation company and flight school based in Roskilde, Denmark.

With large modern facilities based in Roskilde, the school trains the future generation of professional pilots in Denmark.

The company was a first-mover in Europe to introduce charter flights (airtaxi) on single engine turboprop aircraft under new legislation CAT SET-IMC.

The aircraft reaches destinations all over Europe, and have exceptional performance for short field operations.

The scheduled route between Roskilde – Anholt – Læsø is operated by a 10-seat Britten-Norman BN-2 Islander, but this may be substituted or augmented with one of the company's 6-seat Partenavia P.68's In 2020, an airline with the name Air Seven started flying under Copenhagen AirTaxi's AOC.