1. Institute for Environmental Solutions, “Lidlauks”, Priekuļi Parish, LV-4126 Cēsis County, Latvia
2. The National Botanic Garden of Latvia, Miera Iela 1, LV-2169 Salaspils, Latvia
3. Field and Forest, SIA, 2 Izstades Str., Priekuli Parish, LV-4126 Cēsis County, Latvia