Donegal Creameries Plc has five main divisions making up its business.
These are:

• Dairy
• Agri-inputs
• Produce
• Property/Other Investments
• Other

It has operations in Ireland, the U.K., Holland and Brazil. Its Dairy business is centred on fresh milk in the north west of Ireland with processing at Killygordon in Donegal. Its Agri-inputs includes the manufacture of compound animal feeds. Produce includes the development, growing and sale of seed potatoes to over thirty countries. It has significant property assets including The Grianan Estate, one of the largest farms in Ireland and other properties in Donegal, Sligo and the U.K.