How as in do they get away with it as google clearly says you have to go to customers locations? Which means the catchment service area is a 2 hr radius. Reason asking is because I got off the ohone with google support. They clearly don’t allow this so I am wonder how or is there a secret that I don’t know about lol."How" as in, "What do they do to create a GMB listing?" Same steps as usual. You'd pick a category like "Internet marketing service," or "Marketing agency" or "Marketing consultant" (those are other options).
Or is your question more like, "Wait a minute, why does Google allow marketing agencies to have GMB pages at all?"