I built a worldwide directory of professional Greenhouse builders. Professional means here Greenhouse builders for commercial production. Below you find a list by country, I know there are many more. Do you have any suggestions please let me know I will be happy to add them. Please don’t post hobby greenhouse... 

Hoogendoorn America will be present at the Canadian Greenhouse Conference from October 8 – 9, 2008 at the International Centre, Toronto, Ontario, Canada. Over the last years the conference was attended by more than 2.200 visitors. This year Hoogendoorn America will be a sponsor of the Canadian Greenhouse Conference....