British Zeolite Association
Promotes zeolite science in the UK. Information on the materials, news and events, and links to other resources.
http://www.bza.org/

The Zeolite Homepage of Volker Betz
The Social Media blog is your single destination for updates on the AIM Buddy blog, the AIM Pages blog, the AOL Community Info blog, the Expressions Factory, the Marvelous Mob and the Social Media Mess blog.
http://members.aol.com/vbetz/Zeolites.html

Italian Zeolite Association
Associazione Italiana Zeoliti
http://www.aiz.unisa.it/

Federation of European Zeolite Associations (FEZA)
Scientific organization, organizing meetings and workshops in areas such as zeolite synthesis, ordered mesoporous materials, and catalytic applications.
http://www.feza.enscm.fr/

International Zeolite Association
Aims to promote the development of zeolite science and technology. News, publication listing, commissions, upcoming and past conferences, structure databases, and links.
http://www.iza-online.org/

The International Natural Zeolite Association
Scientific and technical organization focused on natural zeolite materials. Publications, membership information, event calendar.
http://icnz.lanl.gov/

Zeolyst International
Global supplier of zeolite catalysts and adsorbents, including standard types of zeolites, molecular sieves, development and manufacture of custom zeolite powders and catalysts for specific customer applications, and premium technical service.
http://www.zeolyst.com

Czech Zeolite Group
Division of the Czech Chemical Society focused on academic and industrial researchers interested in natural and synthetic zeolite-based molecular sieves.
http://www.jh-inst.cas.cz/~catsymp/czg.htm

Zeolyst International
Global supplier of zeolite catalysts and adsorbents, including standard types of zeolites, molecular sieves, development and manufacture of custom zeolite powders and catalysts for specific customer applications, and premium technical service.
http://www.zeolyst.com/

Rota
Producer of Natural Zeolite Clinoptilolite for Industrial Uses
http://www.zeoliteproducer.com