Costume Guild UK(site info)
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/
National Costumers Association(site info)
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
5.
Costume Society of Great Britain(site info)
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/