Unilever has signed a €1bn (£640m) seven-year deal for BT to develop and manage its worldwide communications infrastructure.
The move is part of the company's Path To Growth initiative to focus on its leading brands and streamline the supply chain.
Martin Armitage, head of Unilever's Global Infrastructure Organisation, said in a statement: "To achieve our path to strategic growth objectives it is essential that Unilever has a high quality and cost effective global network.
"We look forward to working with BT as it uses its technical expertise and global knowledge to oversee our existing network, and introduce appropriate new technology while driving down costs."
BT will deliver voice, data and mobile services as well as develop new technologies on behalf of Unilever, allowing the company to reduce its current supplier base down to a single partner.
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