The Aachen Innovation Prize
The prize is not huge (5,000 Euros), but the purposes and winners are interesting. According to this account:
The city of Aachen and the district (Kreis) of Aachen have conferred the Aachen Innovation Prize jointly since the year 2000. From 1992 until 1999 it was granted by the city of Aachen alone under the name of the “City of Aachen Prize for Innovation and Technology”.