ClickHouse has surpassed $350M in annual recurring revenue, up 40% since May, as AI agents drive demand for database & observability infrastructure. OpenAI’s usage has reportedly grown ~10x over the past year to more than 30 petabytes of data per day, or roughly 30T events daily. OpenAI has also shifted parts of its log-management workload from Datadog to ClickHouse over the past year. ClickHouse was valued at $15B in January and says gross margins currently range from 50%-70%. Earlier this year, it acquired Langfuse to expand further into monitoring AI applications and agents. Nebius $NBIS owned a 28% stake in ClickHouse as of May 2025, though that stake has likely been diluted by subsequent fundraising.