Callebaut
Barry Callebaut (often simply referred to as Callebaut) is the world's largest chocolate manufacturer. It was formed by the merger of the Belgian company Callebaut and French company Cacao Barry in 1996. Now based in Switzerland, it is still primarily considered to be a producer of Belgian chocolate.
Callebaut primarily produces bulk chocolate for patisseries, chocolatiers, catering and other chocolate companies, and is not generally known for selling direct to the consumer.
The company now has 40 factories across the world, and continues to expand, most notably into emerging markets such as China and South America.