I recently started doing food deliveries as a side income and I’m aware of what I can and cannot deliver to non Muslims but the problem is the company doesn’t show what exactly we are delivering. If we were delivering pork then we wouldn’t know. Would such income still be considered halal or is it haram?

You must request them not to give you any haram products to deliver. In the event haram money gets mixed with halal money and you don’t know it’s amount then you will need to take out khums based on the appropriate rules to rectify it