List as of 26 January 2006
Printed list of participants closing date is 23 January 2006
| Company Name | Country |
| Added Value | USA |
| ADV Market Research | The Netherlands |
| All China Strategic Research | China |
| All Global | UK |
| Boots Healthcare | Poland |
| Branding Science | UK |
| Brintnall & Nicolini | USA |
| Burke, Inc. | USA |
| Buzzmetrics | USA |
| CondeNast Publications | USA |
| Cooper & Henshaw MRI | Canada |
| Cooper & Henshaw MRI | USA |
| Data Marketing Research | China |
| DocCheck Medical Services | Germany |
| E.R.M.R. | Canada |
| Fieldwork International | UK |
| Fieldwork International | USA |
| Genactis | UK |
| GlaxoSmithKline | UK |
| GMI | USA |
| GO Medizinische Marktforschung | Germany |
| Greenfield Online | USA |
| Hoffmann - La Roche | Canada |
| Ignition - Marketing Research Consultancy | UK |
| IGV Marktforschung | Germany |
| Incepta Marketing Intelligence | UK |
| Insight Research Group | UK |
| Insight Research Group | USA |
| InSites Consulting | Belgium |
| Ipsos Bimsa | Mexico |
| Johnson & Johnson | Belgium |
| Language Logic | USA |
| Livingston Market Consultants | China |
| Market Analysis Brasil | Brazil |
| MarketResponse International | USA |
| M.D. Analytics | Canada |
| MDLinx | USA |
| Medcenter Solutions | Argentina |
| Medical Market Research | Germany |
| Medicus NY | USA |
| MG Business & Research Solutions | Spain |
| Moskowitz Jacobs | USA |
| Northeastern University | USA |
| Novartis Pharma | Switzerland |
| On Target | Mexico |
| Orion Pharma | Finland |
| PDD | UK |
| Pfizer | USA |
| Pfizer Pharmaceuticals | Korea |
| PharmARC Analytic Solutions | India |
| PharmARC Analytic Solutions | USA |
| Philips Design | The Netherlands |
| Produkt + Markt | Germany |
| Psyma International Medical Marketing Research | Germany |
| Qualitative Insights | USA |
| Research International | Denmark |
| Research International | Norway |
| Research International | South Korea |
| Research International | USA |
| Research International Group | UK |
| Research Strategy Group | Canada |
| RFL Communications | USA |
| Sabena Qualitative Research Services | USA |
| Sanofi Pasteur | France |
| SGR International | Italy |
| SIFO Research International Navigare | Sweden |
| St Antonius Hospital | The Netherlands |
| Synovate | USA |
| Synovate Healthcare | USA |
| Szinapszis Market Research & Consulting | Hungary |
| The SmartAgent Company | The Netherlands |
| the third eye | UK |
| TNS InterScience | Brazil |
| UCB | Begium |
| UCB | USA |
| Vinizius Young & Rubicam | Spain |
| VWB intermedical | The Netherlands |
| Zaicom Research Plus | UK |