Very few canneries remain in the US. Google canneries and the number one response is fish canneries. Add the word vegetable to the search, and you begin to get an idea of how few remain. The frozen food business model has overtaken canned produce. Most frozen food companies seldom purchase open market produce. They contract directly with growers to insure sufficient product for their operations. Many US canneries, in the last 25 years, have dissembled and moved to foreign countries.
Here is just one example
https://www.opb.org/news/article/jolly-green-giant-left-town-his-image-remains/
