ClickHouse Raises $400M in Series D Funding

San Francisco, January 2026: Real-time data analytics and AI infrastructure leader ClickHouse has secured $400 million in Series D funding, marking one of the largest global investments in data infrastructure this year. The round was led by Dragoneer Investment Group, with participation from top-tier investors including Bessemer Venture Partners, GIC, Index Ventures, Khosla Ventures, Lightspeed Venture Partners, T. Rowe Price Associates, and WCM Investment Management.

This new round underscores ClickHouse’s growing dominance in the AI, data warehousing, and real-time analytics markets, positioning it as one of the most powerful platforms powering next-generation enterprise applications.

Unprecedented Growth and Adoption

ClickHouse’s growth trajectory has been nothing short of remarkable. The company now serves over 3,000 global customers through its fully managed ClickHouse Cloud platform, recording 250% year-over-year ARR growth.

Major enterprise customers — including Capital One, Meta, Sony, Tesla, Airwallex, Cursor, Polymarket, and Lovable — have either adopted or expanded their use of ClickHouse in the past year.

“ClickHouse was built to deliver unmatched performance and cost efficiency for demanding data workloads. This funding validates that vision,” said Aaron Katz, CEO of ClickHouse. “We’re evolving toward unified transactional and analytical workloads, enabling developers to build AI-powered applications with the fastest, most reliable data foundation.”

AI, Observability, and Unified Data Infrastructure

ClickHouse’s latest funding comes at a time when AI and data-driven workloads are driving massive infrastructure demand.
As enterprises shift from AI experimentation to large-scale production, the need for real-time, low-latency, and observable data systems has skyrocketed.

Christian Jensen, Partner at Dragoneer Investment Group, highlighted this shift:

“As models become more powerful, data infrastructure becomes the bottleneck. ClickHouse stands out because it provides the speed, reliability, and scalability needed for AI systems operating at scale.”

The funding will accelerate ClickHouse’s AI and LLM observability roadmap, making it the go-to platform for AI builders, data engineers, and analytics teams worldwide.

ClickHouse Acquires Langfuse to Power LLM Observability

In a strategic move, ClickHouse announced the acquisition of Langfuse, an open-source LLM observability platform that enables developers to evaluate AI model behavior, accuracy, and safety in production.

Unlike traditional system monitoring, LLM observability focuses on how AI models behave and ensures that outputs are accurate, safe, and aligned with user intent — a critical requirement for enterprise AI adoption.

The Langfuse project already has over 20,000 GitHub stars and 26 million SDK installs per month, making it one of the fastest-growing AI developer tools in the world.

“We built Langfuse on ClickHouse because observability in AI is a data problem,” said Marc Klingen, CEO of Langfuse. “Now, as one team, we can deliver faster ingestion, deeper evaluation, and shorter feedback loops between production and improvement.”

Introducing the Native Postgres Service: A Unified Stack for AI Developers

ClickHouse also announced a new enterprise-grade Postgres service, deeply integrated with its existing analytics engine. This creates a unified data stack that supports both transactional and analytical workloads — a game-changer for modern AI and real-time applications.

The service, built in partnership with Ubicloud, offers:

• High-performance Postgres backed by NVMe storage

• Native CDC (Change Data Capture) for instant syncing

• Up to 100x faster analytics when integrated with ClickHouse

• Unified query layer for seamless operations across systems

“Postgres and ClickHouse are natural complements,” said Umur Cubukcu, Co-CEO and Co-Founder of Ubicloud. “Together, they eliminate data silos and empower AI developers with a powerful, integrated infrastructure.”

Global Expansion and Enterprise Ecosystem Growth

ClickHouse continues to strengthen its global footprint through major partnerships and international expansion.
Recent milestones include:

• Entering the Japanese market via a strategic partnership with Japan Cloud

• Collaboration with Microsoft Azure to integrate ClickHouse into OneLake

• Hosting global user events across San Francisco, New York, Amsterdam, Sydney, and Bangalore, featuring thought leaders from OpenAI, Tesla, Canva, and Capital One

The company’s product roadmap now includes:

• Support for Apache Iceberg, Delta Lake, and major data catalogs

• Enhanced full-text search for observability use cases

• Lightweight updates for high-demand AI applications

• Industry-leading price-to-performance ratios compared to top cloud data warehouses

Why This Funding Matters

With the $400 million Series D, ClickHouse is now positioned as a category-defining leader in real-time data infrastructure — the backbone for the AI era.

The capital will fuel:

• Continued AI-driven product innovation

• Expansion of ClickHouse Cloud globally

• Deeper investments in LLM observability and unified data systems

• Strategic partnerships with cloud and AI ecosystem players

“This funding round and acquisition mark the next stage of ClickHouse’s mission: to become the world’s leading platform for real-time analytics, AI observability, and unified data infrastructure,” said Aaron Katz.

About ClickHouse

ClickHouse is a global leader in real-time analytics, data warehousing, and AI infrastructure. Built for speed, scale, and reliability, its open-source database engine powers mission-critical workloads for enterprises and AI innovators worldwide.

With over 3,000 enterprise customers, ClickHouse enables organizations to process petabytes of data in real time, delivering insights that drive smarter decisions and scalable AI applications.