What category do promotional videos fall under in ImdbPro additional credits section?

what does industrial mean? what would fall under that category?

Promotional videos can be considered industrial films if they are created and shown to a specific audience and not to the general public. This would be unlike a motion picture, TV program, or a short film, which are designed to be shown to the general public.

You mentioned that the videos were shown at events and festivals. Were the videos meant to only be shown only at these events or have they been shown to a broader audience?

FYI: Wikipedia pages
Industrial video
Corporate video

2 of them I worked on were published on Youtube. They were to promote events and festivals. Not shown at them. Would the ones published to youtube be considered commercial or internet?