Dispatcher in Europe and most of the rest of the world is a poorly paid and thankless job carried out in all weathers typically by 20 somethings who haven't found a decent job yet. It involves liasing with gatestaff and captain (in airlines that include the Captain in the despatch process), fuel, baggage loading etc and sometimes collecting loadsheet and final paperwork from an office and conveying it to the aircraft, plus sometimes overseeing the pushback. It involves no special skills beyond basic literacy and numeracy and requires a little on the job training. It may or may not involve acquiring an airside driving permit.
It has very little indeed to do with the American despatcher who seems to do performance and fuel calculations and probably does need to be extensively trained, tho why their pilots can't do their own fuel calcs we Europeans are unable to say...
There is certainly no such thing as a despatcher certificate or "academy training" in Europe.
You'd need to apply directly to handling agents to find vacancies. Bring common sense and an indestructible sense of humour.