HealthcareJul 16, 2026

Quest Diagnostics

Company Profile Analysis

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Year Founded & Workforce

1989-12-31

46,000 Employees

Industry

Healthcare

Services

Quest Diagnostics Overview

Company Headquarters: New Jersey, US

Founded: 1990

Workforce: ~46,000

Company Working: Quest Diagnostics is one of the leading providers of pre-employment drugs-of-abuse screening and risk assessment services for the employers and life insurance industry. It offers physicians a vast test menu and develops new innovative tests. The company majorly provides services in the field of cancer diagnostics, anatomic pathology services, and interpretive consultation. It has two segments, namely, diagnostic information services business (DIS) and diagnostic solutions (DS). The DIS segment complies with about 95% of the net revenue. It serves in the US and selected locations outside the US, such as Mexico, the UK, and India.

Company Snapshot

$7,214M

Revenue

46,000

Employees

1989-12-31

Founded

New Jersey, US

Headquarters

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About the Author

Wantstats Research Team

Wantstats' research desk profiles Quest Diagnostics as part of our ongoing coverage of the Healthcare sector, drawing on public company data, filings, and market intelligence.

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I am very pleased with how market segments have been defined in a relevant way for my purposes (such as "Portable Freezers & refrigerators" and "last-mile"). In general the report is well structured. Thanks very much for your efforts.

Rob Kooiker

Group Product Manager HVAC & Fire Protection GMA, Rockwool

I have been reading the first document or the study, the Global HVAC and FP market report 2021 till 2026. Must say, good info! I have not gone in depth at all parts, but got a good indication of the data inside!

Jason Lee

R&D Director, Seojin

Thanks for your great support. Appreciate it. Well received report. It helps us to understand market well. We're planning other area of survey in the future, let's keep in touch.

Akif Moroglu

Strategy & Business Development Director, Dogan Holding

We got the report in time, we really thank you for your support in this process. I also thank to all of your team as they did a great job.

Noah Malgeri

Co-Founder, Mojave Rail Fabrication Limited

This is really good guys. Excellent work on a tight deadline. I will continue to use you going forward and recommend you to others. Nice job.

Michael Robert

Manager, JavolVision

Thanks, I am so happy that we worked together. Maybe we still can work together in the future.

Joseph Aguayo

Sales Operations & Pricing Manager, Intel

Thanks. It's been a pleasure working with you, please use me as reference with any other Intel employees.

Bong Lau

Sales Leader, Bamberg

We bought your "2025 report" in 2020. Everything is fine and very good.

Peter Groot Koerkamp

Account and Business Manager, EFS-Holland BV

Thanks for sending the report it gives us a good global view of the Betaïne market.

Younghwan Choi

Senior Retail Manager, LG Chem

We found the report very insightful! we found your research firm very helpful. I'm sending this email to secure our future business.

Mark Irwin

Management Consultant, Level 21

I am very pleased with how market segments have been defined in a relevant way for my purposes (such as "Portable Freezers & refrigerators" and "last-mile"). In general the report is well structured. Thanks very much for your efforts.

Rob Kooiker

Group Product Manager HVAC & Fire Protection GMA, Rockwool

I have been reading the first document or the study, the Global HVAC and FP market report 2021 till 2026. Must say, good info! I have not gone in depth at all parts, but got a good indication of the data inside!

Jason Lee

R&D Director, Seojin

Thanks for your great support. Appreciate it. Well received report. It helps us to understand market well. We're planning other area of survey in the future, let's keep in touch.

Akif Moroglu

Strategy & Business Development Director, Dogan Holding

We got the report in time, we really thank you for your support in this process. I also thank to all of your team as they did a great job.

Quest Diagnostics

Company Headquarters: New Jersey, US Founded: 1990 Workforce: ~46,000 Company Working: Quest Diagnostics is one of the leading providers of pre-employment drugs-of-abuse screening and risk assessment services for the employers and life insurance industry. It offers physicians a vast test menu and develops new innovative tests. The company majorly provides services in the field of cancer diagnostics, anatomic pathology services, and interpretive consultation. It has two segments, namely, diagnostic information services business (DIS) and diagnostic solutions (DS). The DIS segment complies with about 95% of the net revenue. It serves in the US and selected locations outside the US, such as Mexico, the UK, and India.

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