Company Profile

About GeneDx

GeneDx, Inc., a wholly owned subsidiary of BioReference Laboratories, Inc. an OPKO Health Company. A global industry leader in genomics and genetic testing, we’re trusted by healthcare providers and patients in over 55 countries.

For more than 20 years, GeneDx has been at the forefront of genetic innovation, pioneering new technologies and gene discovery, enabling great diagnostic accuracy for patients and families. When experience matters, GeneDx is your answer.


Zee O’Rare: Our GeneDx Mascot

In medical school there is a saying, “When you hear hoofbeats, think horses not zebras.” Think of common causes of the symptoms first, not the rare. When you encounter a zebra, think GeneDx, where rare is common. We were founded with the mission to provide clinical testing for rare and ultra rare disorders. Due to our mission, our mascot is a zebra named Zee O’Rare.

When expertise matters, healthcare providers choose GeneDx


By interrogating genes for complex variants, we can identify the underlying causes of conditions that may otherwise be missed.

Applying rigorous and esoteric testing strategies, our expert molecular biologists make sure we report the most accurate result—consistently.


Cross-referencing uncertain cases to our database of over one million tests leads to more clarity and diagnoses. As new genetic discoveries are made, we re-review previous cases and report new answers found for patients previously tested.


We have a long-standing history of rigorous variant interpretation, supported by hundreds of genetic counselors and MD/PhD scientists with extensive clinical experience and peer-reviewed publications.