This is a list of the main enterprise search vendors. The links were verified on 25 April 2008. Please let us know if there are any omissions or errors in this list

Active Navigation
http://www.activenavigation.com Southampton, UK

Antidot
http://www.antidot.net Lyon, France

Arikus
http://www.arikus.com Toronto, Canada

Attensity
http://www.attensity.com Palo Alto, California, USA

Autonomy Corporation
http://www.autonomy.com Cambridge, UK

BA-Insight
http://www.ba-insight.net White Plains, New York, USA

Blossom (ESR)
http://www.blossom.com Brookline, Massachusetts, USA

BrightPlanet
http://www.brightplanet.com Sioux Falls, South Dakota, USA

Brainware
http://www.brainware.com Ashburn, Virginia, USA

Cognition Technologies Inc
http://www.cognition.com/ Culver City, California, USA

Connotate
http://www.connotate.com Brunswick, New Jersey, USA

Coppereye
http://www.coppereye.com Bath, UK

Crown Peak
http://www.crownpeak.com Los Angeles, California, USA

Copernic
http://www.copernic.com/ Quebec, Canada

Coveo Solutions Inc.
http://www.coveo.com Quebec, Canada

Delphes
http://www.delphesintl.com Montreal, Canada

Dieselpoint
http://www.dieselpoint.com Chicago, Illinois, USA

dtSearch
http://www.dtsearch.com Bethesda, Maryland, USA

EasyAsk
http://www.easyask.com Bedford, Maryland, USA

Endeca
http://www.endeca.com Cambridge, Massachusetts, USA

Engenium
http://www.engenium.com Dallas, Texas, USA

Exalead
http://www.exalead.com Paris, France

Fast Search
http://www.fastsearch.com/ Oslo, Norway

Funnelback
http://funnelback.com Canberra, Australia

Google
http://www.google.com/ Mountain View, California, USA

Groxis.com
http://www.groxis.com San Franciso, California, USA

IBM
Indez
http://www.indez.com Glasgow, UK

Infovell
http://www.infovell.com Menlo Park, California, USA

Innerprise
http://www.innerprise.net Scottsdale, Arizona

Inquira
http://www.inquira.com San Bruno, California, USA

Inxight Software
http://www.inxight.com Sunnyvale, California, USA

Intelligenx
http://www.intelligenx.com Herdon, Virginia, USA

Intellisearch
http://www.intellisearch.com San Francisco, California, USA

Interse
http://www.interse.com Copenhagen, Denmark

Isys Search
http://www.isys-search.com Sydney, Australia

Kaidara
http://www.kaidara.com Los Altos, California, USA

Lextek
http://www.lextek.com Provo, Utah, USA

Lucene
http://apache.lucene.org Open Source

Metalincs
http://www.metalincs.com Santa Clara, California, USA

Microsoft
http://www.microsoft.com

Nervana
http://www.nervana.com Bellvue, Washington, USA

Northern Light
http://www.northernlight.com Cambridge, Massachusetts, USA

Omniture
http://www.omniture.com Orem, Utah, USA

Openfind
http://www.openfind.com Taipei, Taiwan

Oracle
http://http://www.oracle.com

Polyspot
http://www.polyspot.com Paris, France

Recommind
http://www.recommind.com San Franciso, California, USA

SAP
http://www.sap.com

Searchblox
http://www.searchblox.com Richmond, Virginia, USA

SearchInform
http://www.searchinform.com Moscow, Russia

Siderean
http://siderean.com El Segundo, California, USA

Sinequa
http://www.sinequa.com Paris, France

Smartlogic
http://www.aprsmartlogik.com Cambridge, UK

Surfray
http://www.surfray.com Copenhagen, Denmark

Temis
http://www.temis-group.com Paris, France

Teratext
http://www.teratext.com Melbourne, Australia

Thetus
http://www.thetus.com Portland, Oregon, USA

Thunderstone
http://www.thunderstone.com Cleveland, Ohio, USA

Ultraseek
http://www.ultraseek.com Cambridge, UK

Verticrawl
http://www.verticrawl.com Villemomble, France

Vivisimo
http://www.vivisimo.com Pittsburgh, Pennsylvania, USA

Voltix
http://www.voltix.com/ San Mateo, California

Zylab
http://www.zylab.com Vienna, Virginia, USA