Attentive, an AI-powered marketing platform, has transitioned from a fragmented, multi-database setup to a streamlined solution powered by ClickHouse Cloud. The company's rapid growth and use of machine learning models necessitated simplifying their data architecture and migrating to a single database for improved scalability and handling larger data loads. After understanding the problem and choosing the right technology, Attentive tested ClickHouse with real-world demands before implementing it in their infrastructure. The migration has resulted in faster query completion times, reduced costs, and better scalability, allowing them to focus on feature development and expansion of their platform.