In addition, InES researchers cooperate on an international level with the following scientific associations and partners (selection):
- International Solar Energy Society (ISES)
- Research platforms of the International Energy Agency: Task 38: Solar Air-Conditioning; Task 39: Polymeric Materials for Solar Thermal Applications
- De Montfort University, Leicester (GB): Institute of Energy and Sustainable Development
- City University of Hong Kong (CN): Division of Building Science and Technology