Wednesday, September 23, 2026
9:00 AM – 5:30 PM BST
Big Data LDN 2026
About this event
The UK's largest free data, analytics and AI conference returns to Olympia for two days: 400+ seminars across 15 free theatres, 300+ speakers and 130+ exhibitors, plus a senior Data Driven LDN track.
Big Data LDN is the largest free to attend data and AI event in the UK, drawing roughly 8,000 visitors to Olympia London across two days.
The programme runs more than 400 seminars across 15 free theatres, with over 300 speakers and 130 plus exhibitors. Participating organisations listed include Google, AWS, TikTok, Spotify, Snowflake and Databricks.
A separate paid track, Data Driven LDN, is aimed at senior professionals and covers AI agents, AI governance and data products specifically. The free exhibition and theatre programme covers the broader data, analytics and AI landscape.
Wednesday runs 09:00 to 18:00 and Thursday 09:00 to 17:30. Registration for the free portion is straightforward, but book the Data Driven LDN track separately if you want the senior sessions.
Organized by
Exhibitions organiser behind Big Data LDN, the UK's largest free to attend data, analytics and AI conference and exhibition.