International Costumers' Guild, Inc. - ICG  
   Worldwide organization of costume professionals and hobbyists. Links to costume resources, events, and area chapters.
   http://www.costume.org

Costume Society of America  
   Costume and fashion history, museums, art history, lectures, conservation, and scholarships. Publishes educational journal "Dress".
   http://www.costumesocietyamerica.com/

Costume Society of Great Britain  
   Membership information and costs, calendar of events, scholarship and grant requirements, purchasable publications, and list of associated societies with contact information. Publishes educational journal "Costume"; partial index of past issues.
   http://www.costumesociety.org.uk/

Northern Society of Costume & Textiles  
   Founded 1977; located in the United Kingdom. Mission statement, membership information and costs, events, historic reproduction pattern sales and ordering, associated societies, and contact information.
   http://www.nsct.org.uk

Australian Costumers' Guild  
   Guild officers, calendar of events and workshops, image gallery, membership information, costume links. Publishes "Coztume" newsletter.
   http://home.vicnet.net.au/~costume/

National Costumers Association  
   USA-based group supporting the costuming industry. Officers and Board of Directors, mission statement, events schedule, image gallery from past competitions, scholarships, list of members, and membership form.
   http://www.costumers.org

Costume Guild UK  
   Promotes the advancement of costume design and construction for amateurs through professionals. Membership, members' websites, FAQ, and links. Publishes newsletter "Cutting Edge" and educational journal "The Mantle".
   http://www.conventions.org.uk/wardrobe/cguk/

The Greater San Francisco Bay Area Costumer's Guild  
   California, US-based group who enjoy creating and wearing costumes. Includes "The Great Pattern Review", calendar of themed events, image gallery, membership information. Extensive directory of costuming resources.
   http://www.gbacg.org/

The Dutch Society for Costume, Lace, Fashion and Regional Dress - NVKKMS  
   Organization of collectors and enthusiasts. Mission statement and history, membership information, calendar, "Bulletin" newsletter and annual educational journal "Kostuum". [Frames] [Dutch/English]
   http://home.hetnet.nl/~penningmeester.nvkkms/indexeng.html

Costume Designers Guild  
   Organization founded in 1953 to "promote the research, artistry and technical expertise in the field of film and television Costume Design".
   http://www.costumedesignersguild.com/theguild.htm

Greater Columbia Fantasy Costumer's Guild  
   Membership and contact information for a non-profit organization devoted to the art, design and wearing of costumes. Located in Columbia, Maryland, USA.
   http://www.robinshollow.net/gcfcg/