Crunchy Nut is a honey and peanut cornflake cereal launched in 1980 and sold mainly in the United Kingdom, where its advertising built on the idea that it was so good adults would sneak downstairs at night to eat it. It is among the largest cereal brands in Britain.
Mars is a family-owned company headquartered in McLean, Virginia, United States, founded in 1911. Brandtree records 42 brands under its control.
Mars is one of the largest privately held companies in the world, owned by the Mars family since Frank Mars began making sweets in Tacoma in 1911. It publishes no financial statements. Its four segments are snacking, pet nutrition, food and Mars Wrigley, and it agreed to acquire Kellanova in 2024.
Brandtree records a controlling owner for 552 brands that began in the United Kingdom.
291 of them (53%) are now controlled by a company headquartered in another country, Crunchy Nut among them.
Mars agreed in August 2024 to buy Kellanova for $83.50 a share in cash, a total enterprise value of $35.9 billion including assumed net leverage, and completed the purchase on 11 December 2025 after the last regulatory approvals arrived three days earlier. Kellanova became a wholly owned subsidiary of Mars and its shares left the New York Stock Exchange. The brands did not change hands individually: Pringles, Cheez-It, Pop-Tarts, RXBAR and the international Kellogg cereals stay with Kellanova, which is now a private family-owned company's snacking arm rather than a listed business.
The parent company of Crunchy Nut is Mars, a family-owned company headquartered in the United States. Crunchy Nut sits under Mars' subsidiary Kellanova.
Is Crunchy Nut British or American?
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Crunchy Nut originated in the United Kingdom in 1980, but it is owned today by Mars, which is headquartered in the United States. So Crunchy Nut is a British-origin brand under American ownership.
Is Crunchy Nut still owned by Mars?
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Yes. As of 16 September 2026, Crunchy Nut is still owned by Mars. The ownership record was last checked against primary sources on that date.
Sources (4) & corrections
Last verified . Every ownership fact above is backed by one of these primary documents. Numbers in brackets in the text refer to this list.
[1]Kellanova Annual Report 2025 — Kellanova, Annual report, published 1 February 2026; retrieved 23 October 2026.
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