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Cheshire II is a "Next-Generation Online Catalog and Full-Text Information Retrieval System." It features advanced IR techniques, including support for Boolean and probabilistic 'best match' ranked searching, SGML/XML as the primary data base format, and a client/server architecture that uses the Z39.50 Information Retrieval Protocol.

Full-text indexing of desktop documents for researchers, journalists, and historians with low indexing overhead 13 percent beyond document space. Also displays the most important words from each document. [Windows 95/98]

Search engine vendor of BRS/Search, a text based core product, and web enabled products.

Searches all popular file types, with features including hit highlighting, natural language, fuzzy, phonic, boolean, proximity, field, numeric range.

A Unix based indexing and query system. It is good for indexing relatively small amounts of data. Different types of indexes allow you to trade off search speed for index size. The default search engine used in Harvest.

A complete world wide web indexing and searching system for a small domain or intranet. Source code (GPL).

Web Search Technology.

KE Texpress is an object/relational database that supports text as well as multimedia objects. Runs on a wide variety of platforms including Linux.

A secure web based service, allowing attorneys to store, manage, search and access their documents through the internet.

Megaputer provides a complete family of unique solutions for Natural Language Text Retrieval and Analysis, Data Mining and Knowledge Discovery in Databases.