The greenwerk. offers climate policy and sustainable energy policy related advice to clients in both developing and developed countries.

3 Ideas Ltd is an award winning consultancy specialising in technology development and transfer, architecture, design and cultural research.

Wuppertal Institute for Climate, Environment and Energy  is a research and academic organization established in 1991 with the mission to undertake research and develops models, strategies and instruments for transitions to a sustainable development at local, national and international level.

NIRAS A/S is a private sector, international, multidisciplinary consultancy company established in 1956. It has over 1400 employees located in offices in Europe, Asia and Africa.

Ecofys, a Navigant company, is an international energy and climate consultancy focused on sustainable energy for everyone. Founded in 1984, the company is a trusted advisor to governments, corporations, NGOs, and energy providers worldwide.

Environmental Research Institute (ERI) is a flagship Institute for Environmental, Marine and Energy research in Ireland. The ERI has over 300 researchers working in interdisciplinary and currently has 45 live research projects focused on climate mitigation, adaptation and understanding.