At the age of 45, with a wife and three kids to support, J. Robert Beyster, Ph.D., takes the leap and officially launches his new company—Science Applications Incorporated (SAI).
February 3, 1969
The U.S. government becomes the company’s first customer, hiring Beyster’s firm to analyze nuclear weapon effects.
“After a year, a surprising thing happened,”
Dr. Beyster said. “We made a profit.”
1969
Leidos wins a contract studying radiation-based cancer therapy for the Los Alamos National Laboratory, which sparks the company’s health business.
1970
SAI opens an office in Albuquerque
to support the Air Force Weapons Laboratory. The company assists the lab with their work on electromagnetic phenomena and effects, which later becomes the foundation of the company’s Physical Science Group.
1972
SAI secures its first big global contract, which is for the Kuwaiti Defense Forces.
1976
Three Mile Island nuclear station in Pennsylvania becomes the site of the worst nuclear disaster in U.S. history. SAIC plays a vital role in cleaning up the nuclear accident.
March 28, 1979
SAIC’s work helps engineer the America’s Cup’s most hydrodynamic yacht, winner Stars and Stripes. This marks one of the first times that the company receives public recognition.
1987
SAIC wins its first billion-dollar contract
to create the Department of Defense’s (DoD) Composite Health Care System deployed
to more than 500 DoD medical
facilities worldwide.
1988
SAIC CEO Kenneth Dahlberg rings the
New York Stock Exchange bell, closing an era of employee ownership. In its first day of trading under the ticker symbol “SAI,” company stocks rise 21 percent.
October 13, 2006
Leidos completes its acquisition of Lockheed Martin’s former IS&GS business and begins to integrate the two companies into one unit.
August 16, 2016
Ethisphere® Institute names Leidos one of the World’s Most Ethical Companies.
2018
IS&GS becomes the lead parent company for Mission Support Alliance at the Hanford nuclear cleanup site. The contract is expected to last 10 years and cost $3 billion.
SAIC relocates its headquarters from
San Diego to McLean, Virginia, to consolidate its corporate structure and keep employees closer to Washington, D.C.
2009
With the stroke of a pen, two new companies form:
September 27, 2013
· Leidos
$7 billion solutions-focused parent company
· The new SAIC
$4 billion services business spin-off
The Human Rights Campaign names Leidos as one of its Best Places to Work.
Annual Corporate Equality Index Score: 100%
2017
In 2019, Leidos celebrates its 50th anniversary, but new challenges will always emerge. The company’s impact and legacy will continue
to drive its employees. Here’s to 50 more years of important work!
2019 and Beyond
How We’re Moving Hanford Forward
IS&GS wins a $2 billion contract with the National Science Foundation to provide support and maintenance for the U.S. Antarctic Program.
2011
How We’re Moving Hanford Forward
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Leidos Health Today
Leidos Health Today
Explore Our Global Presence
Explore Our Global Presence
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OUR ROLE IN ANTARTICA
Our ROLE IN ANTARTICA
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1960s
1970s
1980s
2000s
2010s
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How we helped win it back
How we helped win it back
50 Years of Leidos
A legacy of important work in national security, healthcare, engineering and infrastructure
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R&D Support for the air force
R&D SUPPORT For the air force