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

• Dairy
• Agribusiness
• Property

It has operations in Ireland, the U.K. and Holland. Its Dairy business is centred on fresh milk in the north west of Ireland with processing at Killygordon in Donegal. Its Agribusiness includes the manufacture of compound animal feeds and 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.