WordNet
advisory service
n. a consulting service in which a CPA develops findings and conclusions and recommendations that are presented to the client for consideration and decision making
Usage examples of "advisory service".
So long as he saw to that, he was only providing a necessary introductory and advisory service, and being paid for that service, not for human flesh.
There was no advisory service which could tell you what to do if your offspring started making mysterious trysts with white-hodded midgets in the middle of the night.