BAE Systems has secured contracts worth more than £1bn overall to continue in its role of supporting the Royal Navy at Portsmouth Naval Base.
The company will continue delivering ship asset management, repair and maintenance to the entire Portsmouth flotilla in a deal worth £900m.
It will also set up a joint venture with KBR to provide facilities management and services at the dockside, with a contract worth £365m. This scheme will become known as KBS Maritime, combining KBR's infrastructure asset expertise with the experience and capabilities of BAE Systems at the base.
It is part of the Ministry of Defence's Future Maritime Support Programme competition.
Worth up to £1.3bn over the course of five years, the contracts will begin on 1 October, according to BAE Systems.
David Mitchard, managing director of BAE Systems' Maritime Services business, said: "These new contracts will enable us to continue our vital role in supporting the Royal Navy, at home and abroad, building on our long history of delivery, investment and collaboration at Portsmouth Naval Base.
"Working with our customer, we're proud of the improvements we've made at the base, delivering significant infrastructure improvements and reducing carbon emissions by 65%.
"We're excited by the opportunity to continue delivering transformation alongside KBR and other new service providers to support the Royal Navy at Portsmouth, mitigating the environmental impact of operations, whilst maintaining critical military outputs," he added.
Cover image: HMS Trent leaves port after being commissioned into the Royal Navy Fleet at Portsmouth Naval Base (Picture: MOD).