Robert S. Stewart can be contacted at

Interop AG was founded in Toronto, Canada in 1968.

Later headquartered in Geneva (1978), London UK (1979) and Zurich (1987) Switzerland.

His headquarters now are in the BEL communities of Blaricum, Eemnes and Laren in Noord Holland, The Netherlands. Contact him by Email at

Canadians soldiers liberate the village of Laren on the Brink in the Netherlands in 1945. 

The Brink in Laren, Noord Holland, the Netherlands