Accumetrics is a privately-held company based in San Diego, California. They specialize in developing and manufacturing the VerifyNow System, a suite of tests that assess platelet response to antiplatelet therapies. The company was founded in 1996, sold to Radiometer in 2000, and then repurchased by company management and investors in 2003. Their diagnostic instrumentation and test kits are used to measure individual responses to multiple antiplatelet agents.