Yes, you are correct, Heinz did buy Escalon Premier Brands a handful of years ago. Before that they weren't related at all. It wasn't a "take-over" of the Escalon Brand and operations have for the most part stayed "intact". Escalon is a "fresh pack" operation. Heinz has had it's own separate processing plants for their "Heinz label" products (ketchup, vinegar and canned tomatoes etc). Escalon just recently started processing "Heinz Fresh pack" products when they closed their "Heinz brand" tomato processing and packing plant in Stockton within the last year or so.
The Bell'Orto is a Heinz label product that is now processed and packed at Escalon plant. The tomatoes that come in for Heinz are a different variety than what comes in for the Escalon label. So, until recently I have not been a fan of Heinz canned tomato products. I have been a fan of Escalon products for 27 years. So I hope my comments make more sense.