QDEL

Quidelortho Corp

A maker of medical diagnostic tests, QuidelOrtho supplies the rapid tests and lab analyzers doctors, hospitals, and blood banks use to spot illness and match blood types. It was born in 2022 when two companies merged: Quidel, founded in San Diego in 1979, and Ortho Clinical Diagnostics, whose roots reach back to 1939 as a Johnson & Johnson division that helped pioneer safe blood transfusions. Its Sofia analyzer—named for its fluorescent rapid-testing system—won a Good Design award for its small, user-friendly design.