Commercial buildings significantly contribute to global energy consumption and CO2 emissions, yet many fail to provide adequate indoor air quality and comfort. Aedifion aims to improve this by optimizing building operations using digital Building Automation Systems (BASs), which can reduce energy consumption by around 35% while enhancing user comfort. This approach involves leveraging data-driven monitoring, analytics, and control products to help stakeholders meet Environmental, Social, and Corporate Governance (ESG) goals. Aedifion's use of Confluent Cloud for its data pipeline allows for scalable, secure, and reliable data processing, accommodating various building types and data points. Apache Kafka is used as the messaging system due to its delivery guarantees and performance, with Confluent Cloud providing necessary integrations, scalability, and schema management. This setup has been successfully implemented in projects like the Kaiser Hof Cologne, demonstrating significant energy and CO2 savings. As aedifion plans to expand across hundreds of buildings, it continues to focus on data efficiency and sustainability in building management, facilitated by Confluent's capabilities in managing dynamic and continuous data streams.