The Austrian Philatelic Society is an international organization of some 250 members, one third of whom live outside the UK., including many in the USA and others in some 23 other countries. Their purpose is to cater for every aspect of Austrian philately, from the beginnings of the postal system to the latest issues and from the Postal History of all the territories within the Habsburg Empire before 1918 to studies of interest to Thematic (Topical) collectors.
The Austrian Philatelic Society has Local Groups, which hold regular meetings in such places as York and London; it also holds an annual philatelic and social weekend in a place such as York or Cambridge.
Official Website: http://www.austrianphilately.com/