ClickHouse acquired Langfuse, an open-source LLM observability platform, to enhance its AI and analytics offerings. The company reported that its ClickHouse Cloud service surpassed 3,000 customers, reflecting strong adoption of its managed database offering. Additionally, ClickHouse expanded its customer base by 1,000 in the last three months, bringing its total to about 4,000 customers as adoption of its OLAP database accelerated for analytics and AI workloads. ClickHouse raised a $400 million Series D round led by Dragoneer Investment Group, valuing the company at $15 billion, more than doubling its valuation from $6.35 billion in the previous funding round. The company's annualized revenue tripled, reaching $250 million, indicating rapid growth as it prepared for a potential IPO.