The FOREST project aims to positively respond to the growing demand of forest carbon stakeholders for trusted, fully integrated and cost effective Measuring Reporting Verification1 service components, enabling forest carbon projects and initiatives to achieve carbon goals, i.e. emission reduction and/or stock enhancement. It brings essential building blocks for such services including the observations from space, the local in-situ ground measurements to calibrate these observations, the forest maps and the theoretical model needed to estimate and manage the carbon sequestrated in forested areas. By providing cost effective capacities driven by market and end users, the project will improve the process of MRV for forest carbon at project/national scale.