Quest Diagnostics

Quest Diagnostics is a provider of diagnostic insights and clinical laboratory services. Read more

3,150 Followers on Owler
3,150 Followers on Owler
3,150 Followers on Owler
3,150 Followers on Owler

Quest Diagnostics

Quest Diagnostics is a provider of diagnostic insights and clinical laboratory services. Read more

Stephen H Rusckowski's photo - Chairman & CEO of Quest Diagnostics

Chairman & CEO

Stephen H Rusckowski

CEO Approval Rating





PublicIndependent CompanyNYSEDGX









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LabCorp is the top competitor of Quest Diagnostics. LabCorp was founded in 1905, and its headquarters is in Burlington, North Carolina. LabCorp is in the Medical Research & Laboratories field. LabCorp has 26,400 more employees than Quest Diagnostics.

Alere Inc. is seen as one of Quest Diagnostics's top competitors. Alere Inc. was founded in Waltham, Massachusetts} in 1991. Alere Inc. operates in the Health Care Services industry. Compared to Quest Diagnostics, Alere Inc. generates $7.1B less revenue.

BioReference Laboratories, Inc. is Quest Diagnostics's #3 rival. BioReference Laboratories, Inc.'s headquarters is in Elmwood Park, New Jersey, and was founded in 1981. BioReference Laboratories, Inc. is in the Health Care Services industry. BioReference Laboratories, Inc. generates 9.35% of Quest Diagnostics's revenue.


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Quest Diagnostics Quarterly and Annual Revenue

Trailing 12-Months Trend (TTM)

Annual Revenue


Quest Diagnostics's revenue is the ranked 3rd among it's top 10 competitors. The top 10 competitors average 4.8B. Over the last four quarters, Quest Diagnostics's revenue has grown by 64.8%. Specifically, in Q4 2020's revenue was $3B; in Q3 2020, it was $2.8B; in Q2 2020, it was $1.8B; in Q1 2020, Quest Diagnostics's revenue was $1.8B.

Quest Diagnostics Acquisitions



The Outreach Laboratory Services Business, Mercy

Mar 2021

Source »


Outreach Lab Businesses of Community Health Network

Jun 2020

Source »
Mid America Clinical Laboratories, LLC

Jun 2020

Source »
Blueprint Genetics Oy

Jan 2020

Source »
Blueprint Genetics is a provider of clinical sequencing and genetic testing services for the diagnosis of inherited diseases.


Memorial Hermann Diagnostic Laboratories, Memorial Hermann Health System

Jan 2020

Source »

These are all the companies that Quest Diagnostics has acquired. Quest Diagnostics has acquired 20 companies and its latest acquisition was The Outreach Laboratory Services Business, Mercy in Mar 2021.

Quest Diagnostics Funding History

No recent funding data found related to Quest Diagnostics

Quest Diagnostics Investments







Sharecare is a Georgia-based healthcare technology company that offers digital therapeutics and mental wellness programs for employers.
Jul 11, 2019
Corporate Round

These are all the companies that Quest Diagnostics has invested in. Quest Diagnostics has invested 20 companies and its latest investment was The Outreach Laboratory Services Business, Mercy in Mar 2021.

Quest Diagnostics News

April 7, 2021MarketScreener

To Release First Quarter 2021 Financial Results On April 22

( SECAUCUS, N.J., April 7, 2021 /PRNewswire/ -- Quest Diagnostics Incorporated , t... See more »
April 7, 2021PYMNTS

Quest Diagnostics Sees D2C As Future Of Consumer-Driven Healthcare

Quest Diagnostics had been preparing for 2020 for two years. As one of the top medical-testing provid... See more »
April 5, 2021Outsourcing-Pharma

IQVIA completes acquisition of Q2 Diagnostics

The clinical research tech specialists, which had held 60% of Q2 Diagnostics, will now wholly own the... See more »
April 5, 2021Zacks

IQVIA (IQV) Buys Remaining Q2 Solutions Stake, Ups EPS View

The latest deal is expected to help IQVIA (IQV) strengthen its Research & Development Solutions segme... See more »
April 1, 2021Benzinga

Quest Diagnostics Offloads Interest in Q2 Solutions JV To IQVIA

Quest Diagnostics Inc (NYSE: DGX) has announced selling the minority share in Q2 Solutions to IQVIA H... See more »
April 1, 2021The Business Journals: Raleigh/Durham

Iqvia buys out Quest for Q2, pays $750 million

Q2 Solutions was formed in 2015.... See more »
March 22, 2021Clinical Lab Products

Zora Biosciences Licenses Ceramide Technology to Quest Diagnostics

Quest plans to develop a test service based on Zora's ceramide technology as an aid in identifying pa... See more »

Quest Diagnostics Blogs

November 5, 2020Quest Diagnostics Blog

ourPeople Stories: Iram Chaudhary

Iram Chaudhary, Molecular Supervisor, Marlborough, Massachusetts, tells her story: “I was promo... See more »
October 27, 2020Quest Diagnostics Blog

ourPeople Stories: Iram

I was promoted to Molecular Supervisor in mid-July and I’ve been in charge of training personne... See more »
September 29, 2020Quest Diagnostics Blog

A Pandemic Can’t Stop Our Pride

Quest’s Pride Employee Business Network (Pride Network) had big plans to celebrate Pride this year. T... See more »
September 25, 2020Quest Diagnostics Blog

Quest Diagnostics Lab Stewardship Awarded ASCP 2020 Choosing Wisely Award

Quest Diagnostics was honored as a 2020 American Society of Clinical Pathology (ASCP) Choosing Wisely... See more »
September 17, 2020Quest Diagnostics Blog

Mini Genetic Mystery: Hereditary or Tumor BRCA2 Result? 3 Clues to Help Decipher

During his routine physical exam, a patient informs you that his brother, who has prostate cancer, re... See more »
September 1, 2020Quest Diagnostics Blog

Modified Two-Tier Testing (MTTT): A Faster Lyme Disease Diagnosis

Lyme disease is a growing health issue; in fact, according to the Centers of Disease Control and Prev... See more »
August 21, 2020Quest Diagnostics Blog

Quest Advanced™ Neurology gets Creative During COVID: Pivoting to Remote Teaching

Quest Advanced Neurology recently launched a novel genetic counseling rotation developed by Sarah Wit... See more »

Quest Diagnostics Press Releases

January 26, 2021PR Newswire

With COVID-19 on the Rise Amid Vaccine Shortages, Black Clergy Join National Effort to Ramp up COVID-19 Testing in Communities Hardest Hit by Coronavirus

NEW YORK, Jan. 26, 2021 /PRNewswire/ -- In response to the disproportionate and devastating impact CO... See more »
November 5, 2020PRWeb

Blumenthal Nordrehaug Bhowmik De Blouw LLP, File a Class Action Lawsuit Against Quest Diagnostics Incorporated, Alleging Violations of California Labor Law

Quest Diagnostics Incorporated allegedly failed to provide accurate wages due, as well as allegedly f... See more »
October 27, 2020PR Newswire

Quest Diagnostics and Catapult Health Provide Virtual Preventive Care Services for Employers During COVID-19 Pandemic and Beyond

SECAUCUS, N.J., Oct. 27, 2020 /PRNewswire/ -- Quest Diagnostics (NYSE: DGX), the world's leading prov... See more »
October 15, 2020PR Newswire

Excellence in Health & Well-Being Award

SECAUCUS, N.J., Oct. 15, 2020 /PRNewswire/ -- Quest Diagnostics (NYSE: DGX), the world's leading prov... See more »
September 8, 2020PR Newswire

Quest Diagnostics Receives C. Everett Koop National Health Award for Efforts to Promote Employee Health and Business Results

WASHINGTON, Sept. 8, 2020 /PRNewswire/ -- If there is a silver lining to be found in the ongoing COVI... See more »
June 30, 2020Business Wire

Humana to Offer LabCorp At-Home COVID-19 Test Collection and Collaborate with Walmart and Quest Diagnostics to Offer Drive-Thru Testing for Humana Members

LOUISVILLE, Ky.--(BUSINESS WIRE)--Leading health and well-being company Humana Inc. (NYSE: HUM) annou... See more »
May 6, 2020PressReleasePoint

Quest Diagnostics to Hold Virtual Annual Meeting of Stockholders

SECAUCUS, N.J., May 5, 2020 / / -- Quest Diagnostics Incorporated (NYSE: DGX) today announced that it... See more »

Quest Diagnostics Videos

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Quest Diagnostics Headquarters

500 Plaza Drive

Secaucus, New Jersey07094


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Quest Diagnostics Summary



Quest Diagnostics Inc. (NYSE: DGX) is a provider of diagnostic insights and clinical laboratory services. The company is passionate about developing innovative, ground-breaking tests, products and tools to enhance patient care, provide value to our cl...


Quest Diagnostics's Chairman & CEO, Stephen H Rusckowski, currently has an approval rating of 81%. Quest Diagnostics's primary competitors are LabCorp, Alere Inc. & BioReference Laboratories, Inc..


Frequently Asked Questions about Quest Diagnostics

  1. When was Quest Diagnostics founded?

    Quest Diagnostics was founded in 1967
  2. Who is Quest Diagnostics's CEO?

    Quest Diagnostics's CEO is Stephen H Rusckowski
  3. How much revenue does Quest Diagnostics generate?

    Quest Diagnostics generates $9.4B in revenue
  4. How much funding does Quest Diagnostics have?

    Quest Diagnostics has historically raised $0 in funding
  5. Where is Quest Diagnostics's headquarters?

    Quest Diagnostics's headquarters is in Secaucus New Jersey, USA
  1. How many employees does Quest Diagnostics have?

    Quest Diagnostics has 46,000 employees
  2. What sector does Quest Diagnostics operate in?

    Quest Diagnostics is in Biotechnology
  3. Who are Quest Diagnostics's competitors?

    Quest Diagnostics's top competitors are LabCorp, Alere Inc., BioReference Laboratories, Inc.
  4. Who has Quest Diagnostics invested in?

    Quest Diagnostics's has invested in companies such as Sharecare