Serco has secured a contract to support the US Marine Corps Reserve (MCR) psychological health outreach programme (PHOP).
Valued at $16.3m, the contract will see Serco delivering complete support services to reservists and their families to provide them with the information and resources required to improve their state of wellness.
The support services will include behavioural health screenings and follow-up communications.
Serco chairman and CEO Dan Allen said: "Serco takes great pride in delivering vital services to our nation's military and their families.
"We look forward to continuing to provide our expertise and assistance to the men and women of the US Marine Corps."
Serco has supported this programme since its inception in 2009 and the latest contract features a one-year base period and four one-year options.
Work under this contract will be carried out in Devens, Lewis, Kansas City, Marietta, New Orleans, and San Bruno, US.
PHOP is designed to serve USMC reservists and their families by offering a safety net of psychological health services.
As part of this programme, Serco provides psycho-educational services, behavioural health screenings, and customised resources to make sure full access to government, as well as community based services.
According to Serco, the PHOP develops and implements strategies to successfully connect reservists with the support services needed to treat stress injuries to enhance their quality of life.
The company currently carries out similar work that supports the US Navy Reserve PHOP.