IT service management company Serco, Inc. said on Tuesday it’s been awarded a $51 million single-award, indefinite delivery, indefinite quantity (IDIQ) contract to continue providing installation support for Close-In Weapons Systems (CIWS) on U.S. Army, Navy and Coast Guard vessels.

The contract has a one-year base period plus four one-year option periods, with a ceiling value of $51 million if all options are exercised.

Serco will receive task orders to perform installations, upgrades and modifications to the CIWS, a shipboard point-defense weapon that detects and destroys low- and high-flying missile threats that have penetrated outer defenses.

The company expects to perform work for the contract at varying locations, including training sites and shipyards both stateside and abroad, and at Serco’s 11 U.S. facilities. Serco is headquartered in Herndon, Va.

“Serco has been delivering ship modernization services under this program for the past eight years and we pride ourselves on bringing a rich history of experience in supporting the U.S. Navy with C5ISR solutions,” Dave Dacquino, Serco Inc.’s Chairman and Chief Executive Officer, said in a statement. “We recognize the importance of supporting our joint warfighters under this program, and we are extremely pleased to continue advancing the United States military’s shipboard defense systems.”