Many societies who concentrate on a particular region/country or other aspect of philately such as Air mail have expert knowledge in their areas of expertise.

American Air Mail

The American Air Mail Society was founded 1923 and is dedicated to the documentation, preservation, advancement and promotion of Aerophilately worldwide through education, study, research and services. 

The Society publish the Airpost Journal – copies can be downloaded from the website. They also hold regular auctions and the society maintained a bookshop selling airmail related books and other literature. AAMS Conventions are held once a year at regular APS credited stamp shows.

Wreck & Crash Mail

The Wreck & Crash Mail Society was formed in the latter part of 1994, and is devoted to the collecting and study of all aspects of delayed and/or damaged mail and interrupted mail services.  Currently the Society is composed of four study groups, namely: the Air Crash Study Group, The Railroad Wreck Study Group, the Ship Wreck Study Group, and the Suspended Mail/Conflicts Study Group.

The Society publishes a quarterly journal “La Catastrophe”, which contains articles on all aspects of wreck and crash mail, as well as news on new cover discoveries, auction realizations on wreck and crash mail, and questions from members who are seeking information on their crash and wreck covers and the stories behind them.

TPO and Seapost Society

The TPO & Seapost Society is dedicated to collectors interested in Travelling Post Offices (TPO) both on Railways and on the High Seas (Seapost). Our members collect TPO and RPO postmarks and covers, sea post and paquebot marks, ship and packet letters, and other maritime postal history.

Rhodesian Study Circle

Established in 1948, the Rhodesian Study Circle brings together nearly 400 philatelists from around the world interested in the areas of Rhodesia, Northern Rhodesia, Southern Rhodesia, British Central Africa and Nyasaland, and the present day Republics of Malawi, Zambia and Zimbabwe.

The Great Britain Philatelic Society

The GBPS was founded in 1955 by a small but enthusiastic group of collectors in order to promote, encourage, and contribute to the advancement of the philately of Great Britain. Since then it has grown steadily, and now has more than 700 members in the UK and abroad. The Society deals with all aspects of GB philately, and has contributed much to the field; this is certain to continue as new members with fresh ideas join.

American Philatelic Society

The American Philatelic Society, the largest stamp collecting organization in the world, has something for every collector. Whether you are a beginner or an experienced philatelist, membership in the APS will help you grow your knowledge and your enjoyment of the hobby. Since 1886, APS members have shared their experience with stamps and postal history, as well as their lifelong accumulations, with fellow collectors around the world. Along the way, these collectors have built friendships to last a lifetime.

Post Mark Collectors Club

The PMCC has a lot to offer! Among the benefits you’ll receive:

  • The 11-issue-a-year PMCC Bulletin
  • Access to a wealth of knowledgeable contacts
  • First chance to bid on great items as part of PMCC Museum auctions
  • Members-only pricing for the PMCC’s vaunted Post Office Directory and other research materials

British Postcode Society

The British Postmark Society (BPS) was founded on 1st January 1958, and thus we celebrated our Diamond Jubilee in 2018. The BPS exists to promote and to co-ordinate the study and collection of British postal markings (particularly of the 20th and 21st centuries), and the means and mechanisms by which they are applied, and to publish and disseminate the results of our studies. Our members’ interests include hand and machine datestamps, slogan and special event postmarks, explanatory and instructional labels and markings, Post Office and Post & Go (Self-Service) postage labels, Royal Mail Online Postage indicia, and printed postage impressions of Royal Mail and other licensed postal operators.

The Railway Philatelic Group

Are you interested in Stamps? Are you interested in Trains and Railways? If the answer to either of these these questions is yes, then the Railway Philatelic Group (RPG) is the place for you. 

Postage Due Mail Study Group

The Postage Due Mail Study Group was formed at the start of 1997, and has brought together collectors and researchers all over the world. Current membership is 110 – with a quarter overseas.

The Study Group’s scope is worldwide postage due mail – meaning anything posted without full prepayment, from the times when prepayment became usual, until the present day. The influence of the Universal Postal Union and the interchange of ideas amongst countries, together with the fact that insufficiently prepaid mail is a problem faced by all postal administrations make this a coherent subject.