We have just released version 1.2 of our UPC to ISIN / Stock Ticker mapping API and data base.
The data set covers 1,500 brands in 424 categories spanning 50,000 individual products. We have also made our data point-in-time accurate, going back 10 years. Submitting a UPC and a date to the API and it will return the ISIN number of the company that owns product at that point in time - provided the company was public. For private companies the API can return customizable values.
In time, we will provide access to the underlying data so that firms can analyze the characteristics of firms that are acquiring packaged-goods brands as well as those brands that get disposed of.