According to Supermarket News, the top ten North American supermarkets collectively attained revenue of $448 billion in 2020.  The top ten in rank order comprised:

• 1. Kroger $132.5 billion, 2742 stores
• 2. Albertsons $69.7 billion, 227 stores
• 3. Ahold Delhaize USA $51.8 billion, 1,970 stores
• 4. Publix $44.9 billion, 1,269 stores
• 5. Loblaw $37.6 billion, 2,348 stores
• 6. H-E-B  $31.8 billion, 351 stores
• 7. Sobeys $26.6 billion (presumably $US), 1,933 stores
• 8. Aldi $18.6 billion (estimate)
• 9. Wakefern $16.6 billion, (see note for 7 above), 363 stores
• 10. Trader Joe’s $16.5 billion, 530 stores.

The list does not include Walmart, Target and Meijer that are classified as Superstores with a wide range of non-grocery and food items. The list does not include big-box club  stores including Costco, Sam’s and BJ’s. for the same reason.