| # | name | members | 
|---|---|---|
| 1 | Agfa-Gevaert | [1] Jos De Roo | 
| 2 | Aidministrator | [1] Jeen Broekstra | 
| 3 | AKT | [0] | 
| 4 | Arizona State University | [1] Raphael M Malyankar | 
| 5 | BBN Technologies | [2] Mike Dean; Mark Burstein | 
| 6 | Bell Labs | [1] Divesh Srivastava | 
| 7 | Brigham Young University | [1] David Embley | 
| 8 | Ca' Foscari University of Venice | [1] Massimo Marchiori | 
| 9 | Carnegie Mellon University | [3] Massimo Paolucci; Katia Sycara; Anupriya Ankolekar | 
| 10 | CNR | [1] Nicola Guarino | 
| 11 | Convera Corporation | [1] Claude Vogel | 
| 12 | DERI, NUI Galway | [0] | 
| 13 | Deutsches Forschungszentrum für Künstliche Intelligenz (DFKI) | [2] Michael Sintek; Matthias Klusch | 
| 14 | Elsevier | [0] | 
| 15 | Enidata SpA | [1] Daniele Montanari | 
| 16 | Enigmatec | [0] | 
| 17 | EPFL | [1] Karl Aberer | 
| 18 | Esperonto | [0] | 
| 19 | Exeura | [0] | 
| 20 | FORTH-ICS | [1] Vassilis Christophides | 
| 21 | France Télécom | [1] Alain Leger | 
| 22 | Fraunhofer Institute | [1] Andreas Becks | 
| 23 | Fujitsu | [3] Yannis Labrou; Ryusuke Masuoka; Frank McCabe | 
| 24 | FZI Forschungszentrum_Informatik | [1] Boris Motik | 
| 25 | Georgia Institute of Technology | [1] Ling Liu | 
| 26 | Hewlett-Packard | [5] Umesh Dayal; Stuart Williams; Jeremy Carroll; Chris Dollin; Brian McBride | 
| 27 | Humboldt University of Berlin | [1] Bettina Berendt | 
| 28 | IBM | [1] Guido Vetere | 
| 29 | INRIA | [2] Jérôme Euzenat; Ioana Manolescu | 
| 30 | Institut AIFB, Universität Karlsruhe | [3] York Sure; Steffen Staab; Raphael Volz | 
| 31 | ISI/USC | [5] Yolanda Gil; Thomas Russ; Stefan Decker; Robert MacGregor Manolescu; Martin Frank | 
| 32 | ISTI-CNR | [1] Giuseppe Amato | 
| 33 | ITC-IRST | [1] Paolo Bresciani | 
| 34 | Kansai University | [1] Masahiro Hori | 
| 35 | Karlsruhe Institute of Technology | [8] Daniel Veit; Gerd Stumme; Rudi Studer; Siegfried Handschuh; Steffen Staab; Sudhir Agarwal; Raphael Volz; Andreas Hotho | 
| 36 | Lehigh University | [1] Jeff Heflin | 
| 37 | Leipzig University | [2] Sergey Melnik; Erhard Rahm | 
| 38 | LSIS-CNRS | [1] Omar Boucelma | 
| 39 | Lucent | [1] Peter F. Patel-Schneider | 
| 40 | Marche Polytechnic University | [1] Loris Penserini | 
| 41 | Massachusetts Institute of Technology | [1] Benjamin Grosof | 
| 42 | MIG-INRA | [1] Claire Nedellec | 
| 43 | Mondeca | [0] | 
| 44 | NASA | [1] Walt Truszkowski | 
| 45 | NASA Ames Research Center | [1] Naveen Ashish | 
| 46 | National Institute of Informatics | [1] Nigel Collier | 
| 47 | National Library of Medicine | [1] Vipul Kashyap | 
| 48 | National Research Council | [1] Harold Boley | 
| 49 | Network Inference | [0] | 
| 50 | Nokia | [1] Ora Lassila | 
| 51 | Nokia Research | [0] | 
| 52 | North Carolina State University | [1] Munindar Singh | 
| 53 | Ontoprise GmbH | [1] Jürgen Angele | 
| 54 | Ontotext | [0] | 
| 55 | OntoWeb | [0] | 
| 56 | Oracle | [1] Christoph Bussler | 
| 57 | Osaka University | [1] Riichiro Mizoguchi | 
| 58 | Philips Research | [1] Herman J. ter Horst | 
| 59 | Politecnico di Milano | [1] Stefano Ceri | 
| 60 | Research Institute for Advanced Computer Science | [1] Naveen Ashish | 
| 61 | Roma Tre University | [1] Paolo Atzeni | 
| 62 | Rutgers University | [1] Alex Borgida | 
| 63 | RWTH Aachen University | [2] Mareike Schoop; Christoph Quix | 
| 64 | Saarland University | [1] Gerhard Weikum | 
| 65 | SDForum | [1] William Grosso | 
| 66 | Semagix | [0] | 
| 67 | Semantic Web Enabled Web Services | [0] | 
| 68 | Sirma AI, Ltd. | [1] Atanas Kiryakov | 
| 69 | Springer | [0] | 
| 70 | SRI International | [1] David Martin | 
| 71 | Stanford University | [3] Sheila McIlraith; Richard Fikes; Natalya Noy | 
| 72 | SWAP project | [0] | 
| 73 | Technical University Munich | [1] Donald Kossmann | 
| 74 | Technical University of Madrid | [2] Oscar Corcho; Asunción Gómez-Pérez | 
| 75 | Technion, Israel Institute of Technology | [1] Avigdor Gal | 
| 76 | Tecknowledge | [1] Adam Pease | 
| 77 | The Open University | [3] Martin Dzbor; Maria Vargas-Vera; Enrico Motta | 
| 78 | University of Amsterdam | [4] Maarten de Rijke; Jan Wielemaker; Guus Schreiber; Anjo Anjewierden | 
| 79 | University of Arizona | [1] Jeremy Frumkin | 
| 80 | University of California, Irvine | [1] Chen Li | 
| 81 | University of California, Los Angeles | [1] Carlo Zaniolo | 
| 82 | University of California, San Diego | [1] Bertram Ludaescher | 
| 83 | University of Colorado | [1] Roger King | 
| 84 | University of Connecticut | [4] Thuong Doan; Steven Demurjian; Keith Bessette; Charles Phillips | 
| 85 | University of Crete | [1] Dimitris Plexousakis | 
| 86 | University of Cyprus | [2] Skevos Evripidou; Pavlos Moraitis | 
| 87 | University of Freiburg | [1] Georg Lausen | 
| 88 | University of Georgia | [2] Budak Arpinar; Amit Sheth | 
| 89 | University of Illinois at Chicago | [1] Isabel F. Cruz | 
| 90 | University of Innsbruck | [2] Ying Ding; Dieter Fensel | 
| 91 | University of Ioannina | [1] Panos Vassiliadis | 
| 92 | University of Liverpool | [1] Valentina Tamma | 
| 93 | University of Louvain | [1] Manuel Kolp | 
| 94 | University of Madeira | [1] Jorge Cardoso | 
| 95 | University of Maine | [1] Max J. Egenhofer | 
| 96 | University of Manchester | [2] Ian Horrocks; Carole A. Goble | 
| 97 | University of Maryland, Baltimore County | [2] Tim Finin; Anupam Joshi | 
| 98 | University of Modena and Reggio Emilia | [5] Sonia Bergamaschi; Maurizio Vincini; Jonathan Gelati; Francesco Guerra; Domenico Beneventano | 
| 99 | University of Münster | [1] Gottfried Vossen | 
| 100 | University of North Carolina | [1] Zbigniew Ras | 
| 101 | University of Passau | [1] Alfons Kemper | 
| 102 | University of Pennsylvania | [2] Zachary Ives; Susan Davidson | 
| 103 | University of Sheffield | [1] Haralambos Mouratidis | 
| 104 | University of Southampton | [1] Terry Payne | 
| 105 | University of Toronto | [2] Yuan An; John Mylopoulos | 
| 106 | University of Trento | [2] Paolo Giorgini; Paolo Bouquet | 
| 107 | University of Washington | [4] Oren Etzioni; Matt Richardson; Luke McDowell; Alon Halevy | 
| 108 | University of West Florida | [1] Jeff Bradshaw | 
| 109 | University of Zurich | [2] Norbert Fuchs; Abraham Bernstein | 
| 110 | Vienna University of Technology | [1] Gerti Kappel | 
| 111 | Villanova University | [1] Wenfei Fan | 
| 112 | Vrije Universiteit Brussel | [1] Robert Meersman | 
| 113 | VU University Amsterdam | [4] Ronny Siebes; Heiner Stuckenschmidt; Frank van Harmelen; Borys Omelayenko | 
| 114 | W3C | [1] Massimo Marchiori |