Barnsley Naturalist and Scientific Society
Butterfly Conservation (Yorkshire Branch)
Craven Conservation Group
Doncaster Naturalists' Society
Halifax Scientific Society
Leeds Naturalists' Club
Mid-Yorkshire Fungus Group
People, Landscape And Cultural Environment of Yorkshire (PLACE)
Ryedale Natural History Society
Sorby Natural History Society
Wharfedale Naturalists
The Wild Flower Society
Yorkshire Naturalists' Union
Yorkshire Wildlife Trust