Biosynex SA designs, manufactures, and distributes rapid diagnostic tests in France and internationally. The company offers medical devices for in vitro diagnosis in the form of rapid diagnostic tests, immunoblots, molecular biology, and point of care products for screening, diagnosis, and prevention in the areas of bacteriology, parasitology, mycology, virology, biochemistry and oncology, and women's health, as well as COVID-19 tests and instruments. It also provides self-tests; self-measurement products, including thermometers, oxymeters, and blood pressure monitors; and oral care and medical aid products.

The company provides its products to biology and medical analysis laboratories, hospitals, pharmacies, hyper and supermarkets, etc. It also exports its products internationally. The company was founded in 1993 and is based in Illkirch-Graffenstaden, France.