‘Grand projects’ are those undertaken by a group comprising at least four researchers with a joint, coherent research task. A grand project must be characterised by excellence in the various parts of the application, and as a whole. The research task must be more extensive and challenging than would be possible for an individual researcher to address. To secure funds for grand projects, one condition is for an advanced research environment or highly qualified research network, with a sound base in the international research community, to be in place. Grand projects aim to engage in collaboration across subject and institutional boundaries and national borders, and to enable researchers to form a research group that is active in the long term. Grand projects are characterised by a strong international element in the research group.