The annual network event for
digital decision-makers

CIODAY is the annual network event for digital decision-makers in business, government, and everything in between. Not necessarily about the latest tech, this event brings together the community of CIOs, CDOs, and CTOs to share ideas, use cases, and best practices in an informal but luxurious setting. And, of course, we’ll announce the CIO of the Year 2025 and the winner of the Tech Hero Award.

2024 aftermovie
2024 photos

Celebrate the 20th anniversary of the CIO community NL

In a world where technology is rapidly evolving to create breakthroughs, and where both challenges and threats have increased, yesterday’s lessons shape today’s innovations and tomorrow’s possibilities. Prepare for a journey through time and a glimpse into the future. Because in the tech sector: Tomorrow is today!

In 20 years we have witnessed impactful events and insights in various areas: technological, social, economic, (geo)political. nature & environment, public health and so on. As people, organizations and within the CIO community, we have learned that these developments always brought us threats and opportunities.

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Where

NBC Congrescentrum Nieuwegein, the Netherlands

When

25 November 2025

Who

Tech Leaders & C-level executives
What you can expect
Program
CIODAY features top-tier speakers, interactive sessions, and workshops focused on IT strategy and innovation. Attendees will benefit from networking with industry experts and peers, fostering new ideas and collaboration.
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Connections
CIODAY offers numerous networking opportunities, from dedicated sessions and roundtable discussions to informal meetups and receptions. Connect with IT leaders, innovators, and peers to build valuable relationships and drive your digital transformation forward.
Discover and Enjoy
CIODAY isn’t just about insights—it's also about fun and discovery! Enjoy guided tours of innovative tech showcases, explore the Innovation Expo featuring the latest digital solutions, and participate in interactive demos.
partners

Digital decision makers

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C-level

Demand-side organizations

Meet some of our speakers
view all speakers
Meet some of our speakers
view all speakers

Jessica Heres

Digital Strategy & Innovation Lead Europe at Tata Consultancy Services

David Fearne

Global Director of Generative AI at Cognizant

Arman Ashouriha

Head of Oracle Cloud Infrastructure Modernisation Programme at Vodafone Group Service GmbH

David Cleaves

Head of Creative, Europe at Argodesign, A DXC Technology company

Updates

CIODAY2024: Navigating between the well-trusted and the unknown

Watch the CIODAY2024 keynotes

Ing Yan Ong (Heineken) is CIO of the Year 2024

Stay up to date

All posts

CIODAY2024: Navigating between the well-trusted and the unknown

Watch the CIODAY2024 keynotes

Ing Yan Ong (Heineken) is CIO of the Year 2024

Stay up to date by reading the latest updates

more articles
Awards
CIO of the Year Award
The CIO of the Year Award aims to give recognition to the best-performing CIO of the year. The measured aspects entail IT performance, IT agility, and project performance/attractiveness. But not only the performance is essential. Like last year, the election will focus on leadership business and boardroom credibility.
read more
Tech Hero Award
The CIO of the Year Award aims to give recognition to the best-performing CIO of the year. The measured aspects entail IT performance, IT agility, and project performance/attractiveness. But not only the performance is essential. Like last year, the election will focus on leadership business and boardroom credibility.
read more