Big Data LDN 2026

Big Data LDN 2026 takes place on 23-24 September 2026 at Olympia London and is the UK's largest free-to-attend data, analytics and AI conference and exhibition. Organised by RX, it runs 16 subject-grouped theatres — including dedicated Gen-AI & Agentic AI, AI Context, AI Data Science & MLOps, Data & AI Strategy, and Data & AI Governance & Observability theatres — across a programme of more than 400 seminars from 300-plus expert speakers, alongside around 180 exhibitors on the show floor. Every seminar in every theatre is free to attend on a first-come, first-served basis, and the organiser reports over 15,000 attendees at the last edition. Doors open 09:00 both days, closing 18:00 on the Wednesday and 17:30 on the Thursday. A separate workshop programme, Data Driven LDN, runs the day before on 22 September at the Clayton Hotel in Chiswick.

Date

September 23–24, 2026

Location

Olympia London, United Kingdom

Format

In-Person

Event Type

Conference

Status

Upcoming

Expected Attendance

15,000+

Pricing

Free (Free tier available)

Organizer

RX

Added

Jun 24, 2026

Updated

Aug 17, 2026

• ✓Chief Data Officer
• ✓Head of Data
• ✓Data Engineer
• ✓Data Scientist
• ✓Data Architect
• ✓Analytics Leader
• ✓ML Engineer
• ✓CIO

For a UK data or AI leader this is the cheapest serious market scan available: two days, no ticket price, and effectively the whole vendor landscape in one hall at Olympia. The theatres are split finely enough that a specific problem has a specific room — retrieval and context engineering in the AI Context Theatre, agent deployment in Gen-AI & Agentic AI, lineage and controls in Data & AI Governance & Observability. With around 180 exhibitors present, a shortlist that would otherwise take a quarter of vendor calls can be built in an afternoon, and the VIP Theatre keeps executive-level content out of the practitioner scrum.

• ✓X-Axis and Y-Axis Keynote Theatres running parallel expert-led keynote programmes
• ✓Gen-AI & Agentic AI Theatre on how generative AI and autonomous agents reshape business process
• ✓AI Context Theatre — knowledge graphs, vector databases, RAG and context engineering for AI accuracy
• ✓AI, Data Science & MLOps Theatre on developing, deploying and scaling machine learning
• ✓Data & AI Governance & Observability Theatre on governing, securing and monitoring data and AI systems
• ✓Data & AI Strategy Theatre and Data Architecture Modernisation Theatre
• ✓Streaming Analytics & Decision Automation Theatre and Modern Analytics, AI & BI Theatre
• ✓VIP Theatre with executive-level content for senior leaders
• ✓Lightning Talks Theatre showcasing emerging technologies and startups
• ✓Data Driven LDN pre-event workshop day on 22 September at the Clayton Hotel, Chiswick

• ★Free to attend, and that includes every seminar in all 16 conference theatres on a first-come basis — an unusual model for an event running 400-plus sessions.
• ★The 16 theatres are grouped by subject rather than blended into one agenda, so AI context engineering, MLOps, governance and architecture each get a dedicated room for two full days.
• ★Scale in one hall: 300-plus speakers, more than 400 seminars and around 180 exhibitors, with over 15,000 attendees reported at the last edition.
• ★A dedicated VIP Theatre carries executive-level content for senior leaders, kept separate from the practitioner tracks.
• ★A pre-event workshop day, Data Driven LDN, runs on 22 September at the Clayton Hotel in Chiswick for anyone wanting structured training before the show floor opens.

Free to attend. Registration is free and, in the organiser's own words, all seminars in all 15 conference theatres at Big Data LDN are free to attend on a first come first basis; the show bills itself as the UK's leading free-to-attend data and analytics conference and exhibition. The separate Data Driven LDN workshop day on 22 September at the Clayton Hotel, Chiswick is a distinct programme with its own registration. No public price is published for exhibiting — that goes through the RX sales team.

When is Big Data LDN 2026?

Big Data LDN 2026 takes place September 23–24, 2026 in London, United Kingdom.

Where is Big Data LDN 2026 held?

Big Data LDN 2026 is held in London, United Kingdom. The event format is in-person.

How much does Big Data LDN 2026 cost?

Big Data LDN 2026 is free, with a free tier available. Free to attend. Registration is free and, in the organiser's own words, all seminars in all 15 conference theatres at Big Data LDN are free to attend on a first come first basis; the show bills itself as the UK's leading free-to-attend data and analytics conference and exhibition. The separate Data Driven LDN workshop day on 22 September at the Clayton Hotel, Chiswick is a distinct programme with its own registration. No public price is published for exhibiting — that goes through the RX sales team.

Who should attend Big Data LDN 2026?

Big Data LDN 2026 is aimed at Chief Data Officer, Head of Data, Data Engineer, Data Scientist, Data Architect, Analytics Leader, ML Engineer, CIO.

What topics does Big Data LDN 2026 cover?

Big Data LDN 2026 covers Data Analytics, Generative AI, Agentic AI, MLOps, Data Governance, Data Engineering, Data Architecture, RAG and Vector Databases, Streaming Analytics, Business Intelligence.

This page was written from 5 sources, 2 on domains other than bigdataldn.com.

1. 1.bigdataldn.com — theatresvendor
2. 2.bigdataldn.com — visitvendor
3. 3.bigdataldn.com — faqsvendor
4. 4.olympia.co.uk — big data ldn
5. 5.showsbee.com — 98789 Big Data LDN 2026