A science whiz, Beckman Coulter never saw a test it didn't love. The company makes more than 600 diagnostic testing systems and supplies, from simple blood tests to complicated genetic diagnostic tools. Its wares are used by hospital and other clinical laboratories to suss out diseases and monitor their progression. Its clinical products include immunoassay, clinical chemistry, and hematology systems, as well as products in the growing field of molecular diagnostics. In addition to its systems for diagnosing patients, Beckman Coulter makes life science products used by researchers to understand disease and develop new therapies. The company is a subsidiary of industrial automation firm Danaher.