The Iberian cryoEM BAG is a consortium of approximately 40 research groups from Portugal and Spain, focused on addressing critical biological questions. These include studies on membrane proteins, disease-related metabolic enzymes, antibiotic resistance, DNA replication and maintenance, protein synthesis, viral structure and replication mechanisms, and macromolecular complexes involved in key cellular processes such as protein folding and degradation. For these groups, electron cryo-microscopy is an indispensable tool, and access to ESRF resources is vital for advancing their research and achieving impactful results.