Matchbook serves as an innovative identity enhancement platform designed for advertisers and marketers, enabling them to correlate first-party data with fresh digital signals to improve their reach across multiple devices, optimize retargeting efforts, and enhance the accuracy of online-offline attribution. By leveraging vast amounts of aggregated, consented data derived from locations, IP addresses, and Mobile Advertising IDs (MAIDs), it creates precise identifier databases that facilitate the connection of physical locations with IPs and MAIDs, while also integrating additional spatial indices such as postal codes or geohashes. This powerful tool supports a variety of applications, including targeted advertising on connected TV (CTV/OTT), effective cross-software targeting and retargeting, account-based marketing strategies, evaluating campaign performance, enhancing identity graphs, and broadening audience reach beyond the confines of first-party data. Furthermore, Matchbook offers customizable matching parameters and historical context options, empowering clients to refine and personalize their results according to specific strategies and goals. As a result, advertisers can achieve a more cohesive and effective marketing approach across different channels.