Fast Search  
   The Norwegian company that developed the AllTheWeb search engine. Corporate background, products, technology, news and events.
   http://www.fastsearch.com/

Grub  
   An open-source distributed Web-crawling project owned by Looksmart. A client can be downloaded for volunteers to contribute to crawling the Web.
   http://www.grub.org/

aTerra  
   Builds category specific search engines for web sites. Also develops autonomous intelligent search agents.
   http://www.aterra.com/

Nutch  
   A handful of developers working part-time to put together a demo of an open source web-search engine, coded entirely in Java.
   http://www.nutch.org/

Northern Light  
   Provides search and content integration solutions for enterprises and individuals, includes services and technology licensing details.
   http://www.northernlight.com/

Convera  
   Provides enterprise search, retrieval and categorization solutions.
   http://www.convera.com/

WorldLight  
   The company which produces the search engine Entire Web explains its background, products and partners.
   http://www.worldlight.com/

AltaVista  
   Offers text search solutions with support of over 25 languages, optional feature includes multimedia and country search, plus Babelfish translation.
   http://www.altavista.com/web/avbusiness

Exalead  
   Company researching search engine technology and providing a demonstration using listings from the French and English language sections of the ODP and ODP thematic classification.
   http://www.exalead.com/