Within the rankings of the 10 top pet food companies headquartered in Europe, six were ranked differently than in the year prior.

Within the 10 top pet food companies headquartered in the U.S., there was stability in the rankings year-over-year, with just a few changes.

Petfood Industry delivers more data on the world's top pet food companies each year. The most recent year's data is available for free through Petfood Industry magazine, and additionally there are three, historical data sets for sale with information from 2017-2020.

Most of the companies in the Top Pet Food Companies database producing food for ‘other’ pets are headquartered in Europe.