| Bio-Rad Laboratories | USA |
| Boehringer Mannheim Corp (division of Roche) | USA |
| Inverness Medical Innovations | USA |
| Perlman-Roche | USA |
| Searle Laboratories | USA |
| United Research Labs | USA |
| Allergan Inc. | Canada |
| Bristol-Myers Squibb Company | Canada |
| Hoechst Marion Roussel Canada | Canada |
| Johnson & Johnson Products Inc. | Canada |
| Merck Frosst Canada Inc. | Canada |
| Nordic Labs | Canada |
| Pfizer Canada Inc. | Canada |
| Pharmascience | Canada |
| Abbott Laboratories | Latin America |
| Bausch & Lomb | Latin America |
| Bayer | Latin America |
| Grupo Farma | Latin America |
| Grupo San Pablo | Latin America |
| IVAX Pharmaceuticals Mexico | Latin America |
| Laboratoires Pisa SA | Latin America |
| Laboratorios Elmor | Latin America |
| Liomont | Latin America |
| Super Farmacias | Latin America |
| Wyeth-Ayerst Laboratories | Latin America |
| GlaxoSmithKline (merger of Smithkline Beecham & Glaxo) | Europe |