SomaLogic, Inc. is a protein biomarker discovery and clinical diagnostics company based in the United States. It develops slow off-rate modified aptamers (SOMAmers), nucleic acid-based protein binding reagents specific to their cognate proteins, and offers proprietary SomaScan services for multiplex protein detection and quantification in complex biological samples. This technology allows researchers to analyze biological samples for protein biomarker signatures used in drug discovery and development, with diagnostic applications in areas such as cardiovascular and metabolic disease, nonalcoholic steatohepatitis, and wellness. The company also provides SomaSignal, a laboratory-developed test, and serves pharmaceutical, biotechnology, academic, and government research institutions. It has a collaboration agreement with Illumina Cambridge, Ltd for co-branded NGS-based proteomic distributable kits, was founded in 1999, and is headquartered in Boulder, Colorado.