Indexing Tools for CMS

CINDEX - Professional indexers tool.
HTML Indexer - Windows tool for creating HTML indexes
HTML/Prep - Utility, used in conjunction with indexing software, such as CINDEX, Sky Index, or Macrex, or a tagged ASCII file.
Macrex - Professional indexers tool.
Sky Index - Professional indexers tool.
Web Indexing SIG - American Society of Indexers Special Interest Group on Website Indexing. Lots of resources and a discussion group.
XRefHT32 - Freeware Windows tool for creating HTML indexes

Attensity Corporation - Relational Extraction Server; Knowledge Engineering Workbench; Quality, Reliability and Durability (QRD) Center; PowerDrill
Ascential Ascential Enterprise Integration Suite
Autonomy Automatic Categorization; Autonomy Channels; Automatic Clustering; Automatic Taxonomy Generation
Bitext Natural language analysis (Spanish and English)
ClearForest ClearResearch; ClearTags
Convera RetrievalWare 8; Classification Workbench
Data Advantage Group DAG MetaCenter 3
Data Harmony Group Information Management Software Tools and Customized Taxonomy Construction Services
Dublin Core Tools
MultiTes Thesaurus construction tools.
empolis ORENGE
Entrieva Content Analytics
Inxight Smart Discovery
Intellisophic
Lingway
Mark Logic Content Interaction Server
MetaMatrix MetaBaseModeler
Mondeca SA Intelligent Topic Manager
Recommind MindServer Categorization
SER Solutions SERbrainware; SERglobalBrain; SERdistiller; SER eDM
SPSS Predictive Analytics
SPSS/LexiQuest LexiQuest Categorize
Schemalogic Master Metadata - Taxonomy Vocabulary management
Stratify Stratify Discovery System; Classification Server
Synaptica In the world of taxonomies, thesauri and knowledge management, Synapse Corporation offers ready-made taxonomies, enterprise-class software solutions, domain expertise, and professional lexicography and indexing services.
Taxonomy Strategies An information management consultancy that specializes in applying taxonomies, metadata, automatic classification, and other information retrieval technologies to the needs of business.
Teragram
TEMIS SA XTS
Verity Verity K2 Enterprise
WebChoir TermChoir
Wordmap Taxonomy Manager; Server; Classifier

Back-of-the-book indexing tools

Tools for classification schemes, thesauri, taxonomies, subject headings, and controlled vocabularies