Proteomics is the large-scale experimental study of the proteome, all the proteins produced or modified by an organism or system. Proteomics can tell us about when and where proteins are expressed, protein production and degradation rates, the characterisation of protein post-translational modifications (e.g. phosphorylation), elucidating protein structures, and protein-protein interactions.This information can be combined with data from other omics disciplines (genomics, metagenomics, metabolomics) to give us more insights into how organisms work.The ELIXIR Proteomics Community aims to develop and maintain sustainable proteomics tools and data resources. An essential part of the development will also be the ‘FAIRification’ of the resources (i.e. making the resources FAIR - Findable, Accessible, Interoperable, and Reusable).