Fonterra continues to be the world's biggest dairy processor.
The International Farm Comparison Network has again ranked the cooperative No. 1 for its milk production, with Fonterra providing 3% of the world's milk supply.
Dairy Farmers of America is second, with 2.5% of the supply, followed by Nestle with 2%.
The largest 21 dairy processing companies account for nearly a quarter of the milk produced globally.