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Open House London 2026: A Free ClickHouse User Conference

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About this event

What to expect

Open House London 2026 is a free, full-day ClickHouse database and AI conference taking place at CodeNode in London on Wednesday 30 September.

Hosted by ClickHouse and the ClickHouse London User Group, the event combines practical training, technical talks, product news and face-to-face networking. It is an opportunity to deepen your ClickHouse knowledge, learn directly from people building the technology and meet members of the wider European database community.

Hands-on training and technical deep dives

The morning begins with an optional hands-on training workshop. Sessions will cover:

  • Real-time analytics with ClickHouse
  • Observability using ClickStack
  • Building agentic systems with ClickHouse

The training is designed around practical skills that attendees can apply after the event. Following lunch, the programme shifts to a keynote and a series of technical deep dives exploring observability, transactions, agentic AI and databases. Expect demonstrations and explanations from the people working directly on the technology, alongside product announcements and thought-leadership sessions.

The announced speaker line-up includes Alexey Milovidov, CTO at ClickHouse; Clemens Rawert, co-founder of Langfuse; and Ryadh Dahime, Director of AI at ClickHouse.

Schedule

  • 8:30am: Walk-in
  • 9:00am: Optional hands-on training workshop
  • 12:00pm: Lunch break
  • 1:30pm: Keynote
  • 2:00pm: Technical deep dives
  • 5:00pm: Networking happy hour
  • 6:00pm: Event close

Open House London will suit database professionals, software developers and people working across data analytics, business intelligence, data warehousing, open-source software, observability and AI systems. No specific prerequisite level is stated; the mix of applied workshops, keynotes and deep technical content offers different ways to participate according to your interests and experience.

The conference takes place at CTRL @ CodeNode London, Skills Matter | CodeNode, 10 South Place, EC2M 7EB, in London. Attendance is free, but advance registration is required. The day concludes with a networking happy hour, giving attendees time to meet speakers, ClickHouse builders and fellow users in person.

Register for Open House London 2026

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