What departments does Quest Diagnostics have?

Quest Diagnostics has employees across 6 departments including Entrepreneurship, Research, Solutions Engineering, Operations, Engineering.

What is the largest department at Quest Diagnostics?

The largest department at Quest Diagnostics is Entrepreneurship with 31 employees.

Where are Quest Diagnostics employees located globally?

Quest Diagnostics has employees across 7 continents and 75 countries including Kenya, Egypt, Nigeria, South Africa, Niger.

How has Quest Diagnostics's team size changed over time?

Quest Diagnostics's team has decreased from approximately 32K to 17K employees based on available data.

Quest Diagnostics Employee Directory

Medical and Diagnostic LaboratoriesNew Jersey, United States10001+ Employees

Quest Diagnostics is a medical and diagnostic laboratory company based in Secaucus, New Jersey. It offers a broad menu of more than 3,000 tests and provides cancer diagnostics, anatomic pathology services, and interpretive consultation through a medical and scientific staff of about 900 MDs and PhDs. It serves about one in three adult Americans and roughly half of the physicians and hospitals in the United States. Its network includes laboratories in most major metropolitan areas and facilities in Mexico, the United Kingdom, and India, and it operates about 2,250 patient service centers. On a typical workday it processes testing for about 550,000 patients, and in 2026 it announced investments to enhance digital ordering and electronic health record connectivity.

Quest Diagnostics Global Highlights

North America
25K

United States Of America
25K
Mexico
127
Canada
33
Antigua And Barbuda
2
Jamaica
1
Honduras
1
Panama
1
El Salvador
1
Dominican Republic
1

Asia
670

India
559
Philippines
43
Pakistan
11
China
8
Japan
7
Singapore
7
Viet Nam
6
Indonesia
5
Malaysia
3
United Arab Emirates
3
Nepal
3
Russian Federation
3
Turkey
2
Saudi Arabia
2
Iraq
2
Sri Lanka
1
Israel
1
Bangladesh
1
Afghanistan
1
Kazakhstan
1
Cambodia
1

Europe
268

United Kingdom Of Great Britain And Northern Ireland
192
Germany
16
Ireland
14
Finland
8
France
5
Poland
4
Netherlands
4
Bulgaria
4
Italy
3
Hungary
3
Spain
3
Greece
3
Ukraine
2
Belgium
2
Moldova
1
Slovenia
1
Portugal
1
Sweden
1
Austria
1

South America
62

Colombia
24
Brazil
24
Ecuador
6
Chile
4
Argentina
3
Peru
1

Africa
44

Kenya
13
South Africa
10
Egypt
6
Ghana
3
Nigeria
2
Ethiopia
2
Zimbabwe
2
Niger
1
Morocco
1
Zambia
1
Tunisia
1
Senegal
1
Cameroon
1

Oceania
12

Australia
9
New Zealand
2
Fiji
1

Quest Diagnostics's Leadership

P. Z.
Chief Executive Officer
Mobile Phone
Email
A. S.
Chief Executive Officer
Mobile Phone
Email
A. W.
Ceo, Founder - Ctp Solutions, Llc
Mobile Phone
Email
D. N.
Chief Executive Officer
Mobile Phone
Email
F. D.
Chief Executive Officer
Mobile Phone
Email
G. V.
Chief Executive Officer
Mobile Phone
Email
B. W.
Chief Buisness Development Officer
Mobile Phone
Email
D. S.
Chief Operating Officer
Mobile Phone
Email

Quest Diagnostics Employee Metrics

100%

50%

0%

2026

2025

Information Technology
Research
Sales
Engineering
Analytics
Other
Administrative
Community & Social Services
Supply Chain
Program & Project Management

Contact profiles from Quest Diagnostics

Name

Title

Contact Info

Location

Last Update

S. R.
President - South East Region
Mobile Phone
Email
Jul 15, 2026
J. M. D.
Owner
Mobile Phone
Email
Singapore
Jun 29, 2026
S. K.
Owner
Mobile Phone
Email
IndiaChandigarh
Jul 09, 2026
P. Z.
Chief Executive Officer
Mobile Phone
Email
Jul 09, 2026
A. S.
Chief Executive Officer
Mobile Phone
Email
Oct 17, 2024
A. V.
Owner
Mobile Phone
Email
Oct 17, 2024
A. D.
President
Mobile Phone
Email
Oct 17, 2024
A. F.
Owner
Mobile Phone
Email
Oct 22, 2024
A. T.
The Labeautyqueenana Foundation|founder
Mobile Phone
Email
Jul 09, 2026
A. W.
Ceo, Founder - Ctp Solutions, Llc
Mobile Phone
Email
Oct 21, 2024

Frequently Asked Questions

What is Quest Diagnostics known for?

Quest Diagnostics was founded in 1967 operates in the Medical and Diagnostic Laboratories industry; you can contact the main corporate office by phone at

+1-973-520-****

. Explore Quest Diagnostics's company overview page for more information.

What is Quest Diagnostics's most common email format?

Quest Diagnostics employees' email format typically follows the pattern of . Trying to find reliable and up-to-date employee contact data? Find more Quest Diagnostics email formats with LeadIQ.

How many employees does Quest Diagnostics have currently?

Quest Diagnostics has approximately 32K employees as of July 2026. These team members are located across 6 continents, including North AmericaAsiaEurope.

Who are Quest Diagnostics's key employees and leadership?

As of July 2026, Quest Diagnostics's key employees include:

Chief Executive Officer: P. Z.
Chief Executive Officer: A. S.
Ceo, Founder - Ctp Solutions, Llc: A. W.
Chief Executive Officer: D. N.
Chief Executive Officer: F. D.

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Quest Diagnostics Employee Directory

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