ClickHouse Raises $400M in Series D Funding for Real-Time Analytics and AI Solutions

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ClickHouse did not wake up one morning and decide to raise $400M. This story started in 2009, when Alexey Milovidov was deep inside Yandex, building something most people did not know they would need yet. Real-time analytics, raw data coming in hot, answers delivered without waiting overnight. By 2012 it was powering Yandex.Metrica. By 2016 it was open source. By September 2021 it was spun out, planted in San Francisco, California, and given a new mission with a familiar edge.

ClickHouse closed a $400M Series D at a $15 billion valuation. Dragoneer Investment Group led the round, joined by Bessemer Venture Partners, GIC, Index Ventures, Khosla Ventures, Lightspeed Venture Partners, accounts advised by T. Rowe Price Associates, and WCM Investment Management. That number matters. It is a 2.4x jump from the $6.35B valuation set just eight months earlier, and it lands ClickHouse north of $1.05B raised to date.

Aaron Katz, Co-Founder and CEO, has seen this movie before. From Salesforce to Elastic, revenue scale is his native language. Alongside Alexey Milovidov and Yury Izrailevsky, President of Product and Engineering, ClickHouse has been built like a performance engine, not a showroom model. Columnar by design. Relentless on speed. Comfortable eating trillions of rows without asking permission.

The numbers behind the noise are loud. More than 250% year over year ARR growth. Over $100M in ARR by mid 2025. 3,000+ customers now running on ClickHouse Cloud, a service that did not exist before December 2022. Enterprises like Capital One, Meta, Tesla, Microsoft, Anthropic, Cloudflare, and Uber are not experimenting. They are running production workloads where latency shows up in revenue.

This round also lands during an expansion phase that is anything but cosmetic. Langfuse is now inside the building, bringing LLM observability into the core platform. HyperDX is already wired in, turning logs, metrics, and traces into something developers actually want to use. Native Postgres arrived in January 2026, tightening the gap between transactions and analytics. ClickHouse is not drifting into AI infrastructure. It is being pulled there by gravity.

Kevin Egan stepped in as CRO. Jimmy Sexton came aboard as CFO. Mariah Nagy took over people ops. These are not hires made for comfort. They are hires made for scale, scrutiny, and timing. Half the company already lives outside North America. Amsterdam anchors Europe. Japan is now live with ClickHouse K.K.

The name still fits. ClickHouse doesn’t whisper. It clicks, fast, precise, on demand. In a market drowning in late dashboards, it bets the future belongs to systems that answer while the question is still forming. That belief just found $400M of agreement.