I work in/with a mixed Swiss German/German/French/Spanish/Others office department. I don't suppose it will come as much of a shock to hear that English is used

I work in/with a mixed Swiss German/German/French/Spanish/Others office department. I don't suppose it will come as much of a shock to hear that English is used in general, with smaller localised dialect outbreaks occurring regularly. Works pretty well, and as an added bonus, you slowly pick up a better understanding/confusion of a variety of languages :)