Additions to the BBC report:
............All eight men on trial had maintained their innocence. Seven had continued working for Skyguide until the time of the verdict.
The BBC's Imogen Foulkes, in Berne, says it is significant that the four Skyguide employees acquitted were all air traffic controllers - rather than managers. She says this shows the judges backed the prosecution's view that the managers at Skyguide were responsible for introducing negligent, potentially dangerous working practices.
Two separate investigations have already found what were described as organisational deficiencies within Skyguide. These deficiencies were said to have contributed to the accident........