Amazon offers a comprehensive lineup of identity solutions for marketers through its Amazon Web Services (AWS) platform. Key services include:

• AWS Entity Resolution: This machine learning-powered service helps businesses match, link, and enhance related records across multiple applications, channels, and data stores. It supports rule-based and machine learning techniques to resolve customer signals and create unified customer profiles. This service is particularly useful for improving customer insights and personalizing marketing efforts​.
• Amazon Neptune: This fully managed graph database service is optimized for storing and querying billions of relationships with millisecond latency. It is designed for identity resolution, allowing marketers to map and unify customer data, thereby improving cross-device performance and audience activation​.
• AWS Clean Rooms: This service enables secure and privacy-safe collaboration on combined datasets without sharing the underlying data. It helps marketers analyze and collaborate on data to create more accurate customer profiles and enhance campaign targeting​.
• Amazon Cognito: This service provides secure, scalable customer identity and access management, allowing businesses to handle user authentication and data securely. It supports user sign-up, sign-in, and access control across web and mobile applications​​.

By leveraging these AWS identity solutions, marketers can achieve better data integration, enhance customer insights, and improve personalization and targeting in their campaigns.