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Laboratory Corporation of America Holdings, abbreviated as Labcorp, is one of the major life sciences companies worldwide. The company boasts a vast network of clinical laboratories at different locations. Thirty-six of their central laboratories are in America, with additional lab locations in Canada and Puerto Rico.

The most important goal for Labcorp is to provide the finest patient care with the help of their hi-tech labs and comprehensive drug innovations. In reality, there are two company divisions, Labcorp diagnostics that deals with the labs and testing services, and Covance Drug Development that works on inventing new drugs.

Labcorp has over 70,000 employees from all over the world and in 2020 it collected revenue of approximately $14 billion.

History of Labcorp:

In 1995 Labcorp came to life by a merger between Roche Biomedical Laboratories and National Health Laboratories. Hoffman- La Roche went to the United States in 1905, with the foresight that the future medicine industry would become the world's lifeline. The company officially entered the lab business by obtaining the Kings Country Research Laboratory in 1969.

In the meantime, Thomas Edward Powell III and his twin brothers Dr. James Powell and John Powell created Biomedical Reference Laboratories (BRL) in a hospital in Burlington. In 1974 Revlon Inc. entered into the picture and soon became the National Health Laboratories (NHL).  In 1982 Hoffman-La Roche got its hands on BRL and in 1983 combined all the labs under its control to form Roche Biomedical Laboratories (RBL).

In 1994 the NHL expanded its scope and annexed the Allied Clinical Health, which was the 6th largest lab of America. After that, both these companies merged to form Labcorp in 1995 under the leadership of Dr. James Powell, and the rest is history.

The direction of Labcorp

Labcorp wants to work for humanity's benefit, provide excellent health care for everyone and give the best possible solutions to the most important health problems. The company has contributed to America's well-being and the whole world as the company invented a new technology called Polymerase Chain Reaction (PCR) to improve genomic testing significantly. 

Labcorp is constantly working to improve the diagnostic testing, the innovation of new drugs, and the data analysis to provide out-of-the-box ideas to help people choose the best options when making decisions about their health.

For 50 years, Labcorp has provided services to pharmaceutical corporations, doctors, patients and consumers, health care organizations, governmental institutes, independent labs, hospitals, and contract research organizations. Labcorp services comprise 4800 complex and straightforward tests from urine to HIV, genome diagnostics, disease monitoring, and drug trials. 

The operating hours of Labcorp are from Monday to Friday are 7 am to 3 pm and 7 am to 12 pm, while it remains closed on Sunday.


Labcorp is a top life sciences company with a vast network of labs working on diagnostics and drugs to better this world.


What kind of company is Labcorp?

It is a top global life sciences company that focuses on patients’ health and well-being.

What is the most extensive lab in America?

Labcorp is the largest lab in the United States which offers 4,800 various tests.

Comparing Labcorp and Quest, which one is better?

Both the companies are similar, but Labcorp has superior sales.


Typical Hours of Operation

Mo 7:30 - 12:00, 1:00 - 15:00
Tu 7:30 - 12:00, 1:00 - 15:00
We 7:30 - 12:00, 1:00 - 15:00
Th 7:30 - 12:00, 1:00 - 15:00
Fr 7:30 - 12:00, 1:00 - 15:00
Sa Closed
Su Closed

Locations: 1604 locations in 46 states and 1050 cities.


  • Medical Labs

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