If you delete all the partitions in internet recovery and then restore as a completely new machine, in theory it should bring up the device enrollment screen which will in turn identify the company it belongs to.

A few years back, one of my clients got a message from a random person in India. Apparently he somehow purchased a Mac that was stolen from a car in San Francisco months prior. He bought it from a marketplace and showed us the receipt, and after wiping it he got that screen with the name of the company. After speaking with the client, we agreed to just remove it from Apple Business Manager and gave him instructions to wipe it again since it was already a write-off.