Founded in 1963 SERO is the oldest producer of Quality Control materials (QC) in the world. We are a Norwegian expertise-based biotechnology company specialized in QCs covering clinical chemistry, hormones, proteins, tumor markers, cardiac markers, trace elements and therapeutic drugs. Our Seronorm™ branded products range is available internationally through our distributor network. We also offer customized lots to IVD manufacturers and EQA organizations. Guaranteed high Scandinavian quality!