We have created an index that measures eco-innovation in Brazil at firm level. It is a first experience for the country and for this reason we have organized the survey with a qualitative and quantitative approach. The index was structured based on the experiences of the Eco-Innovation Index (EIO, 2013), on the Brazil Innovation Index (FURTADO and QUADROS, 2006) and on contributions of other surveys regarding the definition of the indicators. The next step is the development of multiple case studies to verify if the index proposed here (with modifications) can be calculated using data from the companies.