MARBLES has nine Work Packages (WPs) with research activities on: biodiversity mining (WP1), disease suppressive microbes and consortia (WP2), omics (WP3), chemical diversity (WP4), screening and validation (WP5). WP6 will cover societal and valorisation aspects. WP7 is dissemination, communication, knowledge transfer and stakeholder engagement while WP8 is dedicated to the project management. Finally, WP9 covers the project’s ethics requirements.