Speakers NexSummit 2025

Speakers

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Past
Speakers

DataFest has welcomed some of the brightest minds in data and AI to our stage. Keep an eye out for DataFest 2026 speakers announcements coming soon!

Datafast 2026 Speakers
Past Speakers
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Hannah Fry

Author, radio & TV presenter
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Cassie Kozyrkov

former Chief Decision Scientist
Google
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Colin Jarvis

Global Head of Forward Engineering
OpenAI
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Christopher Wylie

Cambridge Analytica Whistleblower
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Tim Peake

Astronaut
European Space Agency
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Orlando Machado

Chief Data Officer
the LEGO Group
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Caroline Criado Perez

Campaigner and author of 'Invisible Women'
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Zoe Kleinman

Technology Editor
BBC News
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Dr Maggie Aderin-Pocock

Space Scientist
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Duncan Clark

CEO
Flourish (part of Canva)
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Daniel Hulme

Chief AI Officer
WPP
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Cathy O'Neil

Mathematician, data scientist and author of 'Weapons of Math Destruction'
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Dr Eleanor Drage

Research Fellow
Leverhulme Centre for the Future of Intelligence.
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Ross McNairn

CEO
Wordsmith.ai
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Ian Mackie

CEO
Malted AI
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Caroline Criado Perez

Campaigner and author of 'Invisible Women'
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