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The European Network for Health Technology Assessment (EUnetHTA) was founded to support efficient production and use of health technology assessments (HTAs) across Europe by reducing redundancies through collaboration. To facilitate collaboration, a range of practical tools, methods and process definitions were developed. The article describes when and how these tools and methods are used along the HTA process with specific focus on “other technologies”, that is medical devices and non-pharmaceutical procedures. EUnetHTA was able to deliver tangible achievements complying with its goals. The practical tools and the developed methods formed a basis for close collaboration among over 70 agencies at a European level. The activities of EUnetHTA laid a strong foundation for sustainable cooperation. In the long run, jointly produced assessments could realise economies of scale with improved quality, consistency and transparency for the health systems in Europe.