MilliporeSigma, the U.S. and Canada Life Science business of Merck KGaA, Darmstadt, Germany, is a leader for innovative and top-quality high-tech products in healthcare and life science. We excel in biomarker immunoassays, including 200+ MILLIPLEX® multiplex kits with over 1,200 analytes, for use with Luminex® instrumentation, an ultra-high sensitivity platform for Single Molecule Counting (SMC™) technology, including instrumentation and assays, and a broad portfolio of ELISA kits, all with best-in-class verification. We offer the broadest available selection of unique analytes, as well as custom immunoassay development services, allowing you to pick your platform, degree of customization, and verification levels and types to meet investigational or translational research needs. We continue to update our portfolio in areas such as oncology, immunology, neuroscience, and curve fitting software. For all our biomarker kits, we set the performance criteria during assay development and uphold them for subsequent lots to ensure reproducible results you can trust.