| # | name | members | 
|---|---|---|
| 1 | Acklin | [1] Chris van Aart | 
| 2 | AgentLink | [0] | 
| 3 | AKT | [0] | 
| 4 | Annotea | [1] Marja-Riitta Koivunen | 
| 5 | Athens University of Economics and Business | [1] Ion Androutsopoulos | 
| 6 | Atos Origin | [1] José-Manuel López-Cobo | 
| 7 | BBN Technologies | [1] Mike Dean | 
| 8 | Bell Labs | [1] Peter F. Patel-Schneider | 
| 9 | Biovista | [1] Andreas Presids | 
| 10 | Boeing | [1] Mike Uschold | 
| 11 | BT Innovate | [2] John Davies; Alistair Duke | 
| 12 | Carnegie Mellon University | [2] Norman Sadeh; Jinghai Rao | 
| 13 | Centre for Research and Technology Hellas | [1] Yiannis Kompatsiaris | 
| 14 | Claude Bernard University Lyon 1 | [1] Mohand Said Hacid | 
| 15 | CNAM | [2] Julien Lafaye; Dan Vodislav | 
| 16 | Consultant | [1] Michael Denny | 
| 17 | Daimler AG | [1] Ruediger Klein | 
| 18 | DERI, NUI Galway | [27] Ilona Zaremba; Brian Wall; Gerard Conneely; Sylvia McDonagh; Christoph Bussler; Peter Capsey; Maria Smyth; Joseph O'Gorman; Edward Kilgarriff; Christen Ensor; Alice Carpentier; Brian Cummins; Seaghan Moriarty; Edel Cassidy; Emilia Cimpian; Mick Kerrigan; Liam O'Morain; Gearoid Hynes; Matthew Moran; Katharina Siorpaes; Brendan Smith; Brahmananda Sapkota; Fergal Monaghan; Hilda Fitzpatrick; Andreas Harth; Brian Ensor; Johannes Breitfuss | 
| 19 | Deutsches Forschungszentrum für Künstliche Intelligenz (DFKI) | [5] Thierry Declerck; Michael Sintek; Matthias Klusch; Malte Kiesel; Ansgar Bernardi | 
| 20 | DIP | [0] | 
| 21 | Dublin City University | [1] Mark Roantree | 
| 22 | Eindhoven University of Technology | [1] Lora Aroyo | 
| 23 | Empolis GmbH | [1] Ralph Traphoener | 
| 24 | Enterprise Ireland | [0] | 
| 25 | EPFL | [8] Boi Faltings; Roman Schmidt; Philippe Cudre-Mauroux; Sarunas Girdzijauskas; Karl Aberer; Tim van Pelt; Fabius Klemm; Walter Binder | 
| 26 | Florida Institute for Human and Machine Cognition | [2] Pat Hayes; Andrzej Uszok | 
| 27 | FORTH-ICS | [1] Giorgos Flouris | 
| 28 | France Télécom | [1] Alain Leger | 
| 29 | Franklin W. Olin College of Engineering | [1] Lynn Andrea Stein | 
| 30 | Free University of Berlin | [1] Robert Tolksdorf | 
| 31 | Free University of Bozen-Bolzano | [1] Diego Calvanese | 
| 32 | French National Centre for Scientific Research | [1] Yannick Prié | 
| 33 | FZI Forschungszentrum_Informatik | [2] Siegfried Handschuh; Boris Motik | 
| 34 | General Electric | [1] Andy Crapo | 
| 35 | General Motors | [1] Alexander Morgan | 
| 36 | George Mason University | [2] Paulo Costa; Kathryn B. Laskey | 
| 37 | Ghent University | [1] Martine De Cock | 
| 38 | Google Inc. | [2] Vibhu Mittal; Ramanathan Guha | 
| 39 | Hewlett-Packard | [3] Ian Dickinson; Chris Priest; Brian McBride | 
| 40 | Hewlett Packard Laboratories | [1] Jeremy Carroll | 
| 41 | HP Labs Bristol | [2] Chris Preist; Brian McBride | 
| 42 | IBM | [1] Alfred Spector | 
| 43 | IBM Research | [1] Chris Welty | 
| 44 | IBM Thomas J. Watson Research Center | [3] Rama Akkiruja; David Ferrucci; Chris Welty | 
| 45 | IDA Ireland | [0] | 
| 46 | IDT, UAB | [1] Pompeu Casanovas | 
| 47 | ILOG | [1] Christian de Sainte Marie | 
| 48 | Imperial College London | [1] Stefan Rüger | 
| 49 | Indiana University | [2] Thomas Reichherzer; David Leake | 
| 50 | Information Extraction & Transport, Inc. | [1] Michael Pool | 
| 51 | INRIA Rhône-Alpes | [1] Jerome Euzenat | 
| 52 | Institute for Theoretical Computer Science | [1] Carsten Lutz | 
| 53 | IPGems | [1] Duane Degler | 
| 54 | ISI/USC | [6] Yolanda Gil; Timothy Chklovski; Snehal Thakkar; Jose Luis Ambite; Carl Kesselman; Ann Chervenak | 
| 55 | iSOCO, S.A. | [4] Richard Benjamins; Jesús Contreras; Oscar Corcho; Richard V. Benjamins | 
| 56 | ISX Corporation | [1] Garry Edwards | 
| 57 | Journal of Web Semantics | [0] | 
| 58 | Jožef Stefan Institute | [1] Marko Grobelnik | 
| 59 | Kansai University | [1] Masahiro Hori | 
| 60 | Karlsruhe Institute of Technology | [2] Rudi Studer; Bettina Hoser | 
| 61 | Katholieke Universiteit Leuven | [1] Erik Duval | 
| 62 | Knowledge Ventures | [1] Andre Valente | 
| 63 | Knowledge Web | [0] | 
| 64 | Kwansei Gakuin University | [1] Yasuhiko Kitamura | 
| 65 | L3S Research Center | [5] Wolfgang Nejdl; Wolf-Tilo Balke; Wolf Siberski; Jörg Diederich; Daniel Olmedilla | 
| 66 | Lawrence Livermore National Laboratory | [1] Richard Watts | 
| 67 | Lehigh University | [3] Yuanbo Guo; Jeff Heflin; Abir Qasem | 
| 68 | LOA-CNR | [1] Aldo Gangemi | 
| 69 | London Borough of Camden | [1] Alasdair Mangham | 
| 70 | Ludwig Maximilian University of Munich | [1] Francois Bry | 
| 71 | Lumière University Lyon 2 | [2] Hakim Hacid; Djamel Zighed | 
| 72 | Macgregor Group | [1] Said Tabet | 
| 73 | Magna Græcia University | [1] Mario Cannataro | 
| 74 | Massachusetts Institute of Technology | [1] Lalana Kagal | 
| 75 | Mitre Corporation | [1] Kenneth J. Laskey | 
| 76 | Montpellier 2 University | [6] Salima Benbernou; Christophe Rey; Nik Naila Binti Abdullah; Zohra Bellahsene; Pierre Pompidor; Farouk Toumani | 
| 77 | NASA Ames Research Center | [1] Rich Keller | 
| 78 | National Institute of Informatics | [2] Nigel Collier; Hideaki Takeda | 
| 79 | National Institute of Water and Atmospheric Research | [0] | 
| 80 | National Research Centre | [1] Raphaël Troncy | 
| 81 | National Research Council | [4] Nicola Guarino; Massimiliano Ciaramita; Carola Catenacci; Aldo Gangemi | 
| 82 | National Technical University of Athens | [1] Giorgos Stamou | 
| 83 | National University of Ireland | [3] Uldis Bojars; Max Völkel; Carlos F. Enguix | 
| 84 | National University of Ireland, Galway | [3] Stefan Decker; Edward Curry; Brian Shields | 
| 85 | Network Inference | [1] Jack Berkowitz | 
| 86 | Nokia | [0] | 
| 87 | Nokia Research | [1] Ora Lassila | 
| 88 | NTT DoCoMo | [1] Shoji Kurakake | 
| 89 | Oak Ridge National Laboratory | [1] Line Pouchard | 
| 90 | Oasis | [0] | 
| 91 | Ontopia | [1] Lars Marius Garshol | 
| 92 | Ontoprise GmbH | [2] Siegfried Handschuh; Jürgen Angele | 
| 93 | Ontotext | [1] Atanas Kiryakov | 
| 94 | Open Knowledge Initiative | [1] Masaki Matsudaira | 
| 95 | Oryon | [1] Gertjan van Heijst | 
| 96 | Osaka University | [1] Riichiro Mizoguchi | 
| 97 | ParaBots | [1] Marten Den Uyl | 
| 98 | Paris Dauphine University | [1] Nikolaos Spanoudakis | 
| 99 | Philips Research | [1] Herman J. ter Horst | 
| 100 | Polytechnic University of Bari | [1] Tomasso Di Noia | 
| 101 | Polytechnic University of Catalonia | [1] Steve Willmott | 
| 102 | Public Research Centre Henri Tudor | [1] Thibaud Latour | 
| 103 | Radboud University Nijmegen | [1] Perry Groot | 
| 104 | Residencia de Estudiantes | [1] Carlos Wert | 
| 105 | Royal Institute of Technology | [1] Mihhail Matskin | 
| 106 | Saarland University | [1] Thierry Declerck | 
| 107 | SAP AG | [2] Kim Elms; Elmar Donar | 
| 108 | Sapienza University of Rome | [4] Riccardo Rosati; Maurizio Lenzerini; Marco Ruzzi; Domenico Lembo | 
| 109 | SEKT project | [0] | 
| 110 | Semagix | [1] Amit Sheth | 
| 111 | Siderean Software | [1] Robert MacGregor | 
| 112 | Spanish National Research Council | [3] Marco Schorlemmer; Juan A. Rodrguez-Aguilar; Carles Sierra | 
| 113 | SRI International | [5] Vinay Chaudhri; Tomas Uribe; Guizhen Yang; Grit Denker; David Martin | 
| 114 | Stanford University | [5] Richard Fikes; Paulo Pinheiro da Silva; Natalya Noy; Mark A. Musen; Deborah McGuinness | 
| 115 | Storm Technology | [0] | 
| 116 | Swansea University | [1] Owen Gilson | 
| 117 | Technical University of Crete | [1] Manolis Koubarakis | 
| 118 | Technical University of Madrid | [2] Mariano Fernández-López; Asunciòn Gomez-Perez | 
| 119 | Technologia, Informacion y Finanzas | [1] Ruben Lara | 
| 120 | The Open University | [5] Stefania Galizia; Martin Dzbor; Liliana Cabral; John Domingue; Enrico Motta | 
| 121 | TopQuadrant Inc. | [1] Dean Allemang | 
| 122 | United States Naval Academy | [1] Luke McDowell | 
| 123 | Université de Namur | [1] Yannis Tzitzikas | 
| 124 | University of Aberdeen | [2] Wamberto Vasconcelos; Derek Sleeman | 
| 125 | University of Bergen | [1] Weiqin Chen | 
| 126 | University of Bremen | [1] Ubbo Visser | 
| 127 | University of California, Irvine | [1] Alfred Kobsa | 
| 128 | University of Central Florida | [1] Lee Lacy | 
| 129 | University of Colorado | [1] Roger "Buzz" King | 
| 130 | University of Crete | [1] Dimitri Plexousakis | 
| 131 | University of Cyprus | [1] Pavlos Moraitis | 
| 132 | University of Delaware | [2] Wei Chen; Keith Decker | 
| 133 | University of Freiburg | [3] Kai Simon; Georg Lausen; Cai-Nicolas Ziegler | 
| 134 | University of Georgia | [4] Satya S. Sahoo; Meenakshi Nagarajan; Karthik Gomadam; Amit Sheth | 
| 135 | University of Illinois at Chicago | [1] Isabel F. Cruz | 
| 136 | University of Illinois at Urbana–Champaign | [7] Jintae Kim; Adam Lee; Rishi Rakesh Sinha; Raja Afandi; Lars E. Olson; Marianne Winslett; Charles Zhang | 
| 137 | University of Innsbruck | [14] Francisco Martin-Recuerda; Dumitru Roman; Jacek Kopecky; Axel Polleres; Livia Predoiu; Ioan Toma; Cristina Feier; James Scicluna; Dieter Fensel; Ying Ding; Holger Lausen; Jos de Bruijn; Michael Stollberg; Reto Krummenacher | 
| 138 | University of Kassel | [2] Gerd Stumme; Christoph Schmitz | 
| 139 | University of Koblenz and Landau | [1] Steffen Staab | 
| 140 | University of Liverpool | [1] Michael Wooldridge | 
| 141 | University of Lyon | [1] Pierre-Antoine Champin | 
| 142 | University of Manchester | [13] Ulrike Sattler; Evgeny Zolin; Birte Glimm; Dmitry Tsarkov; Jeff Z. Pan; Carole A. Goble; Lei Li; Oscar Corcho; Yeliz Yesilada; Antoon Goderis; Sean Bechhofer; Ian Horrocks; Julian Seidenberg | 
| 143 | University of Maryland, Baltimore County | [4] Tim Oates; Tim Finin; Li Ding; Anupam Joshi | 
| 144 | University of Maryland, College Park | [5] Yardan Katz; Jennifer Golbeck; James Hendler; Bijan Parsia; Aditya Kalyanpur | 
| 145 | University of Milan Bicocca | [1] Roberto Boselli | 
| 146 | University of Minnesota | [1] Maria Gini | 
| 147 | University of North Carolina | [1] Fereidoon Sadri | 
| 148 | University of Orsay | [5] Philippe Chatalic; Marie-Christine Rousset; Francois Goasdoue; Chantal Reynaud; Brigitte Safar | 
| 149 | University of Pennsylvania | [1] Zachary Ives | 
| 150 | University of Queensland | [1] Jane Hunter | 
| 151 | University of Regina | [1] Yiyu Yao | 
| 152 | University of Rennes | [1] Christine Golbreich | 
| 153 | University of Sheffield | [2] Kalina Bontcheva; Diana Maynard | 
| 154 | University of South Carolina | [1] Michael Huhns | 
| 155 | University of Southampton | [3] Terry Payne; Martin Szomszor; Harith Alani | 
| 156 | University of Toronto | [1] Sheila McIlraith | 
| 157 | University of Trento | [5] Paolo Bouquet; Nicola Fanizzi; Luciano Serafini; Ignazio Palmisano; Fausto Giunchiglia | 
| 158 | University of Udine | [1] Alessio Gugliotta | 
| 159 | University of Warsaw | [1] Andrzej Skowron | 
| 160 | University of York | [1] Enda Ridge | 
| 161 | University of Zurich | [3] Peter Vorburger; Christoph Kiefer; Abraham Bernstein | 
| 162 | Vienna University of Technology | [1] Thomas Eiter | 
| 163 | Visual Interaction and Communications Centre | [1] Carlos Lamsfus | 
| 164 | VTT Technical Research Centre of Finland | [1] Santtu Toivonen | 
| 165 | VU University Amsterdam | [6] Michel Klein; Heiner Stuckenschmidt; Guus Schreiber; Frank van Harmelen; Stefan Schlobach; Holger Wache | 
| 166 | W3C | [6] Guus Schreiber; Daniel J Weitzner; Jose Manuel Alonso; Jose Kahan; Ivan Herman; Eric Miller | 
| 167 | Warsaw University of Technology | [1] Henryk Rybinski | 
| 168 | Ximetrix | [1] Juan Antonio Prieto |