Gentian Diagnostics ASA is a medical diagnostics company. It engages in the design, development, and manufacture of biochemical reagents and materials for use in medical diagnostics and research. It offers test solutions in the areas of kidney disease, cardiovascular diseases, inflammation, veterinary, and oncology. The company was founded by Erling M. H. Sundrehagen and Bård Sundrehagen in 2001 and is headquartered in Moss, Norway.