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Quest Diagnostics
Quest Diagnostics (NYSE: DGX) empowers people to take action to improve health outcomes. Derived from the world's largest database of clinical lab results, our diagnostic insights reveal new avenues to identify and treat disease, inspire healthy behaviors and improve health care management. Quest annually serves one in three adult Americans and half the physicians and hospitals in the United States, and our 47,000 employees understand that, in the right hands and with the right context, our diagnostic insights can inspire actions that transform lives. The company offers physicians the broadest test menu (3,000+ tests), is a pioneer in developing innovative new tests, is the leader in cancer diagnostics, provides anatomic pathology (AP) services, & interpretive consultation through its medical & scientific staff of about 900 M.D.s & Ph.D.s. Quest Diagnostics offers the most extensive clinical testing network in the U.S., with laboratories in most major metropolitan areas, & in Mexico, the UK & India. The company also operates four esoteric laboratories, 40 outpatient AP laboratories, & 160 smaller, rapid-response laboratories. Patients may have specimens collected in any of the company’s approximately 2,250 patient service centers. On a typical workday, testing is performed for about 550,000 patients. The company is the leading provider of pre-employment drugs-of-abuse screening for employers & risk assessment services for the life insurance industry. It is the world’s 2nd largest provider of clinical trials testing for new pharmaceuticals. More information is available at www.questdiagnostics.com. Image content features models and is intended for illustrative purposes only. May include AI-generated and/or AI-modified imagery. Language Assistance / Non-Discrimination Notice Asistencia de Idiomas / Aviso de no Discriminación 語言協助 / 不歧視通知 www.QuestDiagnostics.com/home/nondiscrimination
Secaucus, New Jersey, US
Public
$9.9B Revenue
http://www.questdiagnostics.com
33.2K Employees
DGX Ticker
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Toronto, CA
Private
$98.4M Revenue
https://www.lifeworks.com
1.1K Employees
Randox
Randox is dedicated to improving health worldwide. Established in 1982, Randox is an international health diagnostics company with sales and distribution in 145 countries. Products include Biochip Array Technology, clinical chemistry analysers and reagents, quality control materials and software, and an extensive biosciences portfolio. For more information and a complete product portfolio, visit our website www.randox.com or email market@randox.com For careers opportunities please visit https://randox.getgotjobs.co.uk/
UK
Private
$619.5M Revenue
http://www.randox.com
1.1K Employees
G2 Leader Summer 2026 G2 Best Est ROI Mid-Market Summer 2026 G2 Easiest Admin Mid-Market Summer 2026 G2 Most Implementable Summer 2026 G2 Best Results Mid-Market Summer 2026 G2 Lead Capture Mid-Market Summer 2026 Inc Fastest Growing Private Companies 2026 Inc Best Workplace 2026
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