ZS is a professional services firm that works side by side with companies to help develop and deliver products that drive customer value and company results. ZS is a consulting/analytics firm with no self-service consumer opt-out tool visible in its privacy notice. To access, correct, delete or limit use of your data you must email dataprivacy@zs.com (or write to their Evanston, IL Data Protection Officer address); marketing emails can also be stopped via the unsubscribe link. Note that when ZS processes data on behalf of a client, it will only assist and forward your request to that client.