QIAGEN (formerly known as Diagen) is a company that provides sample technology solutions. Its products include genomic DNA extraction kits, exosome isolation devices, circulating tumor cells (CTCs), ribonucleic acid (RNA) tubes, centrifuges, etc. The company offers clinical analysis and interpretation, microbiome profiling, custom assay design, instrument integration, and other services. QIAGEN caters to the molecular biology research, pharmaceutical, biotech, technology, and industrial sectors.