One thousand eight hundred additional Triple A Polyclonals have become available, bringing the total number available to more than 17,000 antibodies, which correspond to more than 15,000 protein-coding genes in the human body. With this new release, researchers now have access to antibodies that cover 75% of the human proteome. All of the Triple A Polyclonals are recommended for immunohistochemistry, and each antibody is supported by over 700 annotated immunohistochemical, immunofluorescence, and Western blot images. Forty percent of the Triple A Polyclonals are recommended for ICC-IF, supported with confocal images with subcellular annotation into 19 different cellular compartments. All Triple A Polyclonals are included on The Human Protein Atlas portal.