American Society of Indexers (ASI) -- South Central Chapter
- The South Central Chapter of ASI represents indexers in Texas, Oklahoma, Arkansas, and Louisiana.
- http://www.asi-scc.org/

Society for Technical Communication (STC) -- Indexing SIG
- A special interest group for writing professionals who index their own documentation or are interested in doing so. Past issues of the SIG's newsletter are available online in PDF.
- http://www.stcsig.org/idx/

Society of Indexers (SI) (UK)
- The site includes information about membership, publications and activities of the Society; indexing as a career and training courses, as well as information about indexing for publishers and authors, including guidance on fees.
- http://www.indexers.org.uk/

American Society of Indexers (ASI) -- Pacific Northwest Chapter
- The PNW Chapter of ASI serves members in the Pacific Northwest (US), as well as providing general indexing information to publishing professionals and organizations in the region.
- http://www.indexw.com/pnwasi/

American Society of Indexers (ASI) -- Culinary Indexing SIG
- Special interest group for indexers of cookbooks and other books on food and cooking.
- http://www.culinaryindexing.org/

American Society of Indexers (ASI) -- Florida Group
- Mailing list for indexers in Florida.
- http://groups.yahoo.com/group/FLIndexers/

American Society of Indexers (ASI) -- Washington, DC Chapter
- Supplements the services provided by national ASI with regular meetings and conferences, professional workshops, and related services. Member directory.
- http://www.indexing.com/dcasi/

American Society of Indexers (ASI) -- Science and Medicine SIG
- An alliance of skilled professional indexers with backgrounds in medical, engineering, and scientific fields. We work in a variety of formats including back-of-book, CD-ROM, and online systems.
- http://www.scimedindexers.org/

American Society of Indexers (ASI) -- Massachusetts Chapter
- Indexing information and resources for experienced indexers and those interested in becoming indexers, workshops, meetings, and conferences on indexing, marketing, small business and freeland consulting issues
- http://www.marisol.com/maasi/

Indexing and Abstracting Society of Canada (IASC)
- The site of this small Canadian indexing society includes the names of executive members and regional representatives with contact information and links to their Web sites and/or e-mail addresses. In addition, there are links to the sites of other indexin
- http://www.indexingsociety.ca/

Australian and New Zealand Society of Indexers (ANZSI)
- Contains society details, list of available indexers, monthly newsletter, and links to indexing-related resources.
- http://www.aussi.org/

American Society of Indexers (ASI)
- Professional organization in the United States solely devoted to the advancement of indexing, abstracting, and database building.
- http://www.asindexing.org/