What is company industry?
Company industry is the vertical classification of an account (e.g. "Software", "Financial Services", "Manufacturing"). It's a primary ICP-fit signal and the standard segmentation axis for territory plans. LinkedIn maintains the most consistent industry taxonomy among free sources; specialised B2B databases (ZoomInfo, Cognism) provide more granular sub-industry codes.
When you're working from a company contact email, the company industry field becomes one of the most-requested enrichments because it lets you complete the buyer profile without forcing the prospect to fill another form. The trade-off is hit-rate: the company industry value is only as findable as your company contact email is unambiguous.