this is way better and is from @ Lars Bosteen = better list
As I know there were at least 1 Flanders unit of the SS and, if I believe right, 1 motorized SS division of the Dutch, with 2 infantry divisions. There were also units deployed into normal SS divisions and I don't think there are any actual numbers of volunteers.
There was also a Georgiërs legion deployed on the island of the Texel. They actually mutinied the German island and almost captured Texel but the Germans recaptured the island and try to find all the Georgiërs. This happened from 6th April and ended around end April/start of May. The last fighting on the island was the 20th May when the Canadians captured the island. The Germans had surrendered in the Netherlands 2 weeks earlier on the 5th of May.