Google has worked with entities since its Knowledge Graph in 2012: when you search for a company, it matches the name to a record with an address, a founder, a sector, and other names for the same thing. AI assistants build answers the same way, from what they know about the entity rather than from the exact words of a query.
A company becomes a clear entity when it is described consistently: the same name, address and activity on its site, in directories, in its Google Business Profile, in press and in structured data. Ambiguity (two names, two addresses, a vague activity) weakens recognition, and a weakly recognised brand is rarely named in an answer.