I remember using this app[0] on my phone years ago, I just checked and they have an API. I'm not sure, but if I recall correctly this allowed you to scan barcodes of things and warn you if they are sub-brand or subsidiary of [evil company you wish to avoid].
Wasn't aware of that, also my use-case during the brief time I messed with it was trying to see how clever it was at identifying companies which use animal testing to develop their products.
This was my reaction too. I'd like to see which conglomerates and their divisions are the worst offenders. To break it down by brands alone makes it hard to identify who to name and shame.
[0] https://www.buycott.com/api