ClickHouse, a provider of real-time analytics solutions, has announced an extension of its Series C financing round, attracting new investors and reporting significant growth in customer adoption and annual recurring revenue (ARR).
The extended Series C round saw participation from new investors including Citi Ventures, Insight Partners, Peak XV Partners, Founders Circle Capital, D. E. Shaw Ventures, Adams Street Partners, Rosberg Ventures, and Expanding Capital. Notable individuals, such as 49ers Brock Purdy, Christian McCaffrey, and Kyle Juszczyk, also joined the round. Existing investors, including Altimeter, Bessemer Venture Partners, IVP, BOND, and GIC, continued their support.
ClickHouse has surpassed 2,000 customers and more than quadrupled its ARR over the past year. New customer acquisitions include Cyera, Hewlett Packard Enterprise, Insider, Laravel, Masorange, Qualified, Shopmonkey, and Supabase. Long-term customers like Canva, Harvey, LangChain, Perion, and SonyLIV have also extended their contracts, indicating continued satisfaction with the platform.
The company has experienced particularly strong adoption among artificial intelligence (AI) companies, with Anthropic, LangChain, Meta, Sierra, Vercel, and Weights & Biases now utilizing ClickHouse Cloud for business-critical systems. This momentum led to ClickHouse being named to the 2025 Forbes Cloud 100 list, recognizing its position among top private cloud companies.
ClickHouse recently hosted its inaugural user conference, OpenHouse, which gathered customers and partners such as OpenAI, Anthropic, and Tesla. The event showcased keynote presentations, product demonstrations, and customer success stories illustrating how the platform supports AI and analytics initiatives across various industries. The company is also set to host its “HouseParty, the SQL” event, headlined by The Chainsmokers, during AWS re:Invent.
In line with its expansion, ClickHouse bolstered its leadership team with three key hires. Kevin Egan joined as Chief Revenue Officer in July, bringing over two decades of enterprise sales leadership experience from roles at Atlassian, Slack, Dropbox, and Salesforce. In August, Mariah Nagy was appointed Vice President of People, with prior experience leading people teams at high-growth companies including Weights & Biases, Confluent, and SurveyMonkey. Most recently, Jimmy Sexton joined as Chief Financial Officer, contributing extensive finance leadership experience from Snowflake and ServiceNow.
ClickHouse continues to advance its platform across multiple use cases. The company launched ClickStack, an observability stack designed to unify logs, metrics, traces, and session replays. For real-time analytics, ClickHouse introduced MongoDB Change Data Capture (CDC), facilitating seamless integration of MongoDB data streams. Data warehousing capabilities were enhanced with improved data lake support, optimizing read and write operations for Iceberg and Delta Lake.
To support the development of agent-facing applications, ClickHouse introduced the MCP Server endpoint and AskAI Assistant in ClickHouse Cloud, providing developers with tools to deploy intelligent, interactive AI-driven experiences on ClickHouse data. Across all use cases, the database continues to evolve with improvements in vector search, JSON support, and full-text search capabilities.
Addressing the needs of regulated environments, ClickHouse announced ClickHouse Private, a private cloud version of its commercial offering. Additionally, ClickHouse Government was introduced with FIPS compliance for highly regulated sectors.
Aaron Katz, CEO of ClickHouse, expressed gratitude for the continued investor confidence, stating, “This extended Series C financing will accelerate our mission to empower organizations with lightning-fast analytics on massive datasets. Our data platform gives customers the speed, flexibility, and efficiency they need to tackle their most critical use cases at scale, helping them unlock value faster in the era of AI.”
Vibhor Rastogi, head of AI investing at Citi Ventures, commented on the investment, saying, “ClickHouse is transforming how companies use data. The demand for fast, interactive analytics has never been greater, especially as data-driven AI initiatives accelerate. We believe ClickHouse is uniquely positioned to lead this market, and we’re excited to support the team as they continue scaling their platform, expanding their product capabilities, and helping customers unlock new value from their data.”
Yotam Segev, Co-Founder & CEO at Cyera, also provided a testimonial: “Analytics is at the core of our products. ClickHouse Cloud gives us the speed and scale to analyze massive volumes of security data directly within our platform. That foundation not only strengthens our customers’ ability to manage and reduce risk today, but also enables us to power new AI-driven capabilities that make threat prevention, detection, and response faster and more effective.”
ClickHouse is an open-source columnar database management system engineered for high-performance, real-time data processing and analytics at scale. Its cloud offering delivers exceptional query speed and concurrency, crucial for applications demanding instant insights from large data volumes. The platform is designed to meet the high-throughput, low-latency requirements of AI agents, which are increasingly embedded in software and generate complex queries. The company is trusted by organizations such as Sony, Tesla, Anthropic, Memorial Sloan Kettering, Lyft, and Instacart, assisting teams in deriving insights and making data-driven decisions through a scalable and modern data platform.
