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Get to Know Us

Join us on our quest to discover and deliver innovations to improve health

We are the world’s leading provider of diagnostic testing services, with a staff of approximately 900 MDs and PhDs, an extensive network of convenient patient locations and a broad range of diagnostic products.

Smiling female physician with stethoscope around neck and holding chart

What We Do

Patients and doctors rely on our diagnostic testing, information and services to help them make better healthcare decisions.

We are the world leader in the industry, and our diagnostic testing impacts 70% of all healthcare decisions. Through our science and innovation team and external partners, we’ve developed and introduced breakthrough laboratory tests, many of which have become the standard of care over time.

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Life at Quest Diagnostics

Our position at the forefront of the healthcare industry makes life at Quest Diagnostics exciting. As a member of our team, you can expand your skills and knowledge. Your colleagues are committed to improving healthcare and finding creative ways to do so. The atmosphere is stimulating and challenging. And the opportunities are almost limitless.

We can help you take your career further, whether you want to move up the ladder or across the world.

Our Locations

We have operations and a variety of employment opportunities in nearly every state of the U.S., as well as India, UK, Ireland, Mexico and more.

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Watch our Videos

At Quest Diagnostics we're incredibly proud of our employees. Take a look at what they accomplished in 2015. Want to join our team?

Our 'Empowering Better Health' video  shows the impact we have on so many people's lives.

Learn more about our vision.