IB Search Engine
- High speed, fully featured, multilingual fielded fulltext engine. Available for many platforms including Solaris, BSD, Linux and Windows-NT.
- http://www2.bsn.de/Z39.50/

Lucene Search Engine
- Jakarta Lucene is a full-featured text search engine written entirely in Java, and it is an open source project available for free download from Apache Jakarta. The current goals of the project are primarily to provide application and also a platform for
- http://lucene.apache.org/java/docs/

Glimpse
- 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.
- http://webglimpse.net/

The Combine Harvesting Robot
- Combine is an open system for harvesting and threshing (indexing) Internet resources.
- http://combine.it.lth.se/

H5 Technologies
- Develops enterprise software that intelligently processes text-based information using automated information indexing and tagging.
- http://www.h5technologies.com/

Dieselpoint, Inc.
- Search software in 100% Java (J2EE) with parametric, natural language and full-text search capabilities.
- http://www.dieselpoint.com/

ClusterClick
- 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]
- http://www.clusterclick.com/

Web Search Engine Software
- Create and maintain a search engine using a perl script and database management tool.
- http://www.web-search.com/websoft.html

ISYS
- Suite of search software products that finds information in multiple file formats and languages. Features product descriptions, evaluation version download, company profile and contact information.
- http://www.isys.com.au/

FreshStart
- Bankruptcy software in WordPerfect and MS-Word for legal professionals. Menu-driven data input and automatic form compilation in official forms typeset format for Chapters 7, 9, 11, 12, 13. Electronic filing (ECF) compatible.
- http://www.freshstart.com/

MicroISIS by UNESCO
- Non-numerical information storage and retrieval software developed to allow institutions, especially in developing countries, to streamline their information processing activities.
- http://portal.unesco.org/ci/ev.php?URL_ID=2071&URL_DO=DO_TOPIC&URL_SECTION=201&reload=1035195531

KE Software Inc.
- KE Texpress is an object/relational database that supports text as well as multimedia objects. Runs on a wide variety of platforms including Linux.
- http://www.kesoftware.com/

Onix Full-Text Indexing and Retrieval Toolkit
- Toolkit (SDK) for adding full-text indexing and searching capabilities to applications. Ported to a wide range of platforms and highly scalable. Designed for use in both large and small scale systems. Free evaluation download.
- http://www.lextek.com/onix/

Simple Web Indexing System for Humans
- SWISH-Enhanced is a fast, powerful, flexible, free, and easy to use system for indexing collections of Web pages or other text files.
- http://swish-e.org/

Cheshire II Project Home Page
- 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 f
- http://cheshire.berkeley.edu/

SearchExpress
- Provides document scanning, optical character recognition and full-text searching.
- http://www.searchexpress.com/

dtSearch
- Searches all popular file types, with features including hit highlighting, natural language, fuzzy, phonic, boolean, proximity, field, numeric range.
- http://www.dtsearch.com/

SimpleScan Software, Inc.
- SimpleScan Software, Inc - providing powerful, cost effective, enterprise wide document management software solutions.
- http://www.simplescan.com/

WinOcular Document Imaging
- Combined Computer Resources, Inc. (CCR), a software developer and integrator, specializes in customizing and integrating document imaging, COLD report management and workflow software products.
- http://www.winocular.com/

OpenText
- Supplier of information retrieval and collaborative software.
- http://www.opentext.com

Managing Gigabytes
- Information and select sections of a book about indexing and compression techniques for documents and images. Also provides information about open source IR system released with the book.
- http://www.cs.mu.oz.au/mg/

Dataware Technologies
- Search engine vendor of BRS/Search, a text based core product, and web enabled products.
- http://www.dataware.com

Thunderstone Software
- Thunderstone has a number of full text search related products including their flagship text/relational database, Texis.
- http://www.thunderstone.com/

Zebra Z39.50 Search Engine
- Zebra is a fulltext and free-text indexing and retrieval system that conforms to ANSI standard Z39.50. It is very good for indexing and searching highly structured data such as MARC records, and GILS records. The Zebra server is freely available for nonco
- http://www.indexdata.dk/zebra

Ultraseek Server
- The tools they use at their site for sale. Demo version available for download.
- http://software.infoseek.com/products/ultraseek/ultratop.htm

ht://Dig
- A complete world wide web indexing and searching system for a small domain or intranet. Source code (GPL).
- http://www.htdig.org/

Megaputer Intelligence
- Megaputer provides a complete family of unique solutions for Natural Language Text Retrieval and Analysis, Data Mining and Knowledge Discovery in Databases.
- http://www.megaputer.com

Isearch
- Software for indexing and searching text documents, using full text and field based search, relevance ranked results, Boolean queries, and heterogeneous databases. Support for document types such as HTML, SGML, mail folders, and USMARC.
- http://www.etymon.com/Isearch/