Data Sharing Relationships Between Alphabet and Other Advertising Organizations, Right?

The project is trying to uncover the data sharing relationship that exists between Alphabet and all of these other advertising organizations. To measure how different we would be from a control profile, by that I mean they didn't have any browsing history, and we just collected ads from them so we wanted to see what a new user would see. It turns out that our interest groups across all interest groups see a higher a higher difference from the control because there's no server side data sharing going on.