The EU’s transition to a circular economy and more resource efficiency is driven by innovation. This can be seen in the food industry, where there is a shift from linear to circular sustainability. In this context, the EU-funded WASTELESS project will develop and test a mix of innovative tools and methodologies for measurement and monitoring of food loss and waste. The project will follow a bottom-up approach. It will start by defining a harmonised methodological framework. It will then establish the standards for the testing activities, the evaluation of the quality and integrability of the data produced in other frameworks. Lastly, it will recommend sustainable policies and business strategies. The findings will be used to develop a decision support toolbox.