Matchbook is an identity resolution solution that helps clients connect the dots between customers and prospects in a fragmented data and marketing landscape. It allows clients to find the right audience with a high degree of confidence and accuracy by... Matchbook is a location-data broker (registered as a data broker in Texas). The privacy policy links to a "Your Privacy Choices and Opt-Out Rights" page (the "HERE" links) for opting out of the sale of your data; you can alternatively email privacy@matchbookdata.com with the subject "Data Transfer Opt out", or call +1 (855) 716-3196 for access/deletion. Important: because their records are keyed to mobile advertising/device IDs, they reject most requests that don't include your device ID -- by their own 2025 metrics they denied 1,469 of 1,550 opt-out requests for this reason, so look up and include your iOS IDFA or Android Advertising ID.