SAS Technical Services (STS) has changed name to SAS Tech. The company is owned by the SAS Group and provides technical maintenance of aircraft to airlines in and outside the SAS Group. The company is one of the world's 15 biggest providers of technical aircraft maintenance and the tenth biggest provider in Europe. SAS Tech has full-service contracts for nearly 250 aircraft. SAS Tech products cover line, base and heavy maintenance; component maintenance; engineering services; engine management; and maintenance training. It is headquartered at Arlanda outside Stockholm and has 3,600 employees.