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Diageo

The world's largest spirits company by sales, formed by a 1997 merger that brought together one of the world's most famous stouts with a global drinks conglomerate.

1997Formed
LondonHeadquartered
2Brands documented so far
Company Facts
Formed1997, merger of Guinness plc and Grand Metropolitan plc
Headquarters16 Great Marlborough Street, London W1F 7HS, England
Main switchboard+44 (0)20 7947 9100
Official sitediageo.com

Sourced from Diageo's own 2023 SEC Form F-3ASR filing. Diageo has relocated its registered office more than once historically — always check diageo.com directly for the current address. Last verified: 6 July 2026.

Brand Portfolio

Diageo Brands Documented on the Codex

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Johnnie Walker

Founded 1820. The teetotal grocer, the Striding Man, and the Kilmarnock closure controversy.

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Guinness

Founded 1759. The 9,000-year lease, the toucan, and the accidental origin of Guinness World Records.

More Diageo brands coming

Smirnoff, Tanqueray, Crown Royal and others are on the build list — this grid grows as each one is researched and published.