To renew their innovation and creativity practices, companies are now equipping themselves with new specific places: innovation laboratories. These laboratories support project teams during creativity sessions to generate ideas. In order to improve these practices, it is necessary to be able to assess and compare the different sessions organised. By joining the Clean Mobility Lab of Faurecia, we were able to analyse, observe and participate in creativity sessions. This immersion allowed us to develop an assessment grid of forty-eight indicators covering the entire creativity process.