 Rega of Switzerland is an example of such a service.In some cases, a local business or even a multi-national company may choose to fund local air ambulance service as a goodwill or public relations gesture.Examples of this are common in the European Union, were in London the Virgin Corporation previously donated to the Helicopter Emergency Medical Service, and in Germany and the Netherlands a large number of the 'Christoph' air ambulance operations are actually funded by ADAC, Germany's largest automobile club and DRF Luftrettung.