British Numismatic Society
- Established to encourage and promote the science of numismatics, through the study of the coins, medals, tokens and banknotes of the peoples of the British Isles and Commonwealth, the United States of America, and all territories that at any time have be
- http://www-cm.fitzmuseum.cam.ac.uk/dept/coins/britnumsoc/

Worldwide Bi-Metallic Collectors Club
- (WBMCC) Worldwide organization of individuals collecting bi-metallic coins. Site contains many images and a variety of good information regarding bi-metallics.
- http://wbcc-online.com/

COINAF
- Organization of dealers and collectors committed to the promotion of fair and honest trade of numismatic items on the internet and to the education of consumers in the study of numismatics and fair trade practices.
- http://coinaf.org

Hellenic Numismatic Society
- Serves the interests of Greek and foreign numismatists and collectors of Greek coins, banknotes, tokens, medals and decorations. Includes a council directory, membership details and a list of publications.
- http://www.coins.gr/hellenum/

Oriental Numismatic Society
- Supports the study and collection of oriental coinage, from North Africa to the Far East. Includes news, event schedule, articles, and membership application.
- http://www.onsnumis.org/

International Association of Professional Numismatists
- A non-profit organization of the leading international numismatic firms. The object of the association is development of numismatic trade conducted according to the highest standards of business ethics.
- http://www.iapn-coins.org/

International Numismatic Commission
- An organization of museums, university, institutes, numismatic societies, and mints pledged to facilitate cooperation between scholars and between institutions in the field of numismatics and related disciplines. (French and English)
- http://www.amnumsoc.org/inc/

The American Numismatic Society
- The ANSociety maintains an extensive collection of coins, paper money and medals and promotes all aspects of numismatic research and learning. In addition, the ANS libraray holds the most comprehensive collection of numismatic literature in the world.
- http://www.amnumsoc.org/

Encased Collectors International
- A dues free club open to all who collect or trade in encased, bi-metal coins and tokens along with silver strikes.
- http://www.encasedcollectorsinternational.org

World Internet Numismatic Society
- A worldwide internet based numismatic club. Offering an mail swap/trade list and a discussion list.
- http://www.winsociety.org/

Numismatics International
- Encouraging and promoting the science of numismatics by specializing in areas and nations other than the United States.
- http://www.numis.org/