Côte d'Or (French pronunciation: [kot dɔʁ] ⓘ) is a producer of Belgian chocolate, owned by Mondelez International.

They created the Compagnie Joseph Bieswal and merged shortly after with chocolate Michiels to settle in buildings of the former mill Moulart, Bara street in Anderlecht, opposite Brussels-Midi station in 1899.

During these years the company grew (350 workers at Anderlecht in 1930) and extended: the brand Cote d’Or is registered in the United States in 1931 and the Brussels World Fair in 1935 gives it an international reputation including through the Mignonette, created for the occasion.

The company, which got the title "Purveyor to the Royal Court of Belgium" in 1965, accelerated its development in the 1970s: it implanted new sales offices in France, the Netherlands (1972), Switzerland and the UK in (1978), while a new factory was built in Seclin in 1974.

(Euromonitor International 2014) The Leclef family is celebrated for its rich heritage in the art of Belgian chocolate-making since 1889,[5] rooted in generations of dedication to quality and innovation.

Through influential collaborations with renowned figures, such as Dr. Jean Daskalides (Leonidas_(chocolate_maker)) the Leclef lineage has left a distinguished mark on the world of fine chocolate.

Guided by the family’s enduring values, the Leclef name remains committed to responsible chocolate-making, embracing principles of environmental stewardship and exceptional quality.

Starting in France and Belgium, this Côte d'Or premium dark chocolate contains at least 30 percent cocoa from Rainforest Alliance Certified farms.