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Welcome to CIONET Belgium

Realise your ambition! Connect with your local community of digital leaders.

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Upcoming Events

 
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Belgium 29-4-26 Invitation Only Physical english

Building Future-Ready Application Ecosystems in the Age of Intelligent Automation

This CIONET workshop is a collaborative deep-dive into the practicalities of"rewiring the building" while it’s still occupied. Drawing onKyndryl’s deep heritage in mission-critical infrastructure and their latestresearch, we will dismantle the "hidden costs" of legacyenvironments. The conversation will focus on the transition from static,monolithic structures to composable architectures that allow intelligent agentsto operate seamlessly across hybrid landscapes.

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Belgium 5-5-26 All Members Physical english

Women of CIONET - The Female Edge in Digital Transformation

Why many transformations fail is not about technology, but about people and culture. Female leaders often excel in stakeholder alignment, empathy, and habit change; qualities that can make the difference between rollout and real adoption.So, where do those who drive digital transformation, often women, belong? Why are they labeled as “change leaders” and not CIOs?

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Belgium 7-5-26 All Members Physical english

Resilience by Design - The Design Choices Behind Infrastructure That Cannot Fail

The most consequential security decisions are not made in the SOC. They are made at the drawing board, when architects choose who will manage their network fabric, where sovereignty will reside, and what dependencies they are prepared to accept. This roundtable brings together technology leaders who recognise that network and infrastructure design is no longer a technical decision but a strategic one. Rather than reviewing the threat landscape, we focus on the foundational choices that determine resilience long before the first incident occurs. Participants will explore how geopolitical fragmentation is turning technology and partner selection into a strategic act, what it means to engineer resilience into infrastructure rather than layer it on afterwards, and whether AI is changing the architectural calculus or simply raising the stakes.  

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Upcoming TRIBE Events

 
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May 12, 2026 Squad Session Invitation Only Physical english

Product-Centric IT 2.0: Blending product and project thinking

Everyone says they’ve gone product-centric. In reality, most organisations live in a hybrid world where projects, products, and platforms overlap. Teams manage releases while still chasing deadlines, and governance still thinks in milestones rather than outcomes. The shift is underway, but the mindset hasn’t caught up.

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May 19, 2026 Squad Session Invitation Only Physical english

AI vs AI in Cybersecurity: When defenders and attackers both use AI

The game has changed, clearly. Attackers have AI, defenders have AI, and both sides are learning faster than anyone expected, or maybe the attackers are just a bit faster. What used to take hours now happens in seconds, and detection windows close before alerts even appear. It’s adaptation beyond automation, and no one gets to sit still.

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May 22, 2026 Squad Session Invitation Only Physical english

Managing Vendor Lock-In: Balancing dependence, cost, and control in strategic partnerships

Every vendor swears their platform is open, flexible, and built for freedom. Then comes the renewal date. The price goes up, migration looks painful, and “strategic partnership” starts to feel more like dependency. Most organisations don’t get trapped overnight, they walk into it one contract at a time. Broadcom, anyone?

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CIONET Partner Updates

CIONET Partner Updates

Recent Cases

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Airbnb Optimizes Usage and Costs by Using Savings Plans and Actionable Cost Data on AWS

To help it achieve its goals, Airbnb looked to Amazon Web Services (AWS), its cloud provider, for data and infrastructure solutions. Using support from AWS and multiple AWS services, Airbnb developed strategies to manage capacity, optimize storage and compute capacity, and build a custom cost and usage data tool. The solutions help Airbnb reduce costs, deliver actionable business metrics, and pursue data-informed efficiency projects across its teams.

Opportunity | Architecting Cost Efficiency to Grow Sustainably

Airbnb’s journey to facilitating connection and community through travel began in 2007 when its first two hosts—and founders—welcomed three guests to their San Francisco home. Since then, the company’s hosts have welcomed over one billion total guest arrivals, with listings across more than 220 countries and regions.

From its early days as a company, Airbnb has powered its business using cloud services from AWS—a strategy that supports its rapidly expanding workloads as well as its need for agile compute and storage solutions. The company decided to invest in transforming its data and usage strategy on AWS. Because Airbnb operations involve hundreds of services and an agile technical culture, the company needed a strategic, centralized, and relatively frictionless approach to leaner purchasing.

Early in Airbnb’s journey, the company used a cost allocation visualization engine, AWS Cost Explorer, which has an easy-to-use interface that helps customers visualize, understand, and manage their AWS costs and usage over time. Later, to make use of its internal data infrastructure and extend the cost visualization capabilities of its data warehousing stack, Airbnb took advantage of data from the AWS Cost & Usage Report, which contains a comprehensive set of AWS cost and usage data and is available at an hourly, daily, or monthly level of granularity, as well as at the management or member account level.

"Using Savings Plans has been a significant improvement to Airbnb’s cloud management process. It’s helped reduce our operational workload while also driving meaningful cost savings for our business.”

Ari Siegel
Senior Finance Manager, Airbnb

 

Solution | Driving Cost Efficiency Using Insights and Pricing Solutions

Relying on its data warehouse, Airbnb uses the AWS Cost & Usage Report to run a custom pipeline that produces a dynamic view of Airbnb’s cost data and facilitates analytics. Airbnb’s pipeline ingests cost and usage files from Amazon Simple Storage Service (Amazon S3), which offers industry-leading scalability, data availability, security, and performance. To process files, Airbnb uses Amazon EMR, a cloud big data environment for processing vast amounts of data using open-source tools, making it possible for developers to run big data applications and petabyte-scale data analytics faster. Airbnb uses its pipeline to discount and amortize the data and then further customize it to support analytics and produce actionable insights and metrics.

To save on its use of Amazon Elastic Compute Cloud (Amazon EC2), which provides secure, resizable compute capacity in the cloud, Airbnb became an early adopter of Savings Plans, a flexible pricing model offering lower prices compared to Amazon EC2 On-Demand Instances in exchange for a specific usage commitment. Airbnb migrated its Amazon EC2 Reserved Instances to Savings Plans and discontinued its On-Demand Instance usage, resulting in cost savings. “Using Savings Plans has been a significant improvement to Airbnb’s cloud management process. It’s helped reduce our operational workload while also driving meaningful cost savings for our business,” says Ari Siegel, senior finance manager at Airbnb.

Airbnb also manages and saves on storage costs using Amazon S3 Intelligent-Tiering (S3 Intelligent-Tiering), a cloud storage class that delivers automatic cost savings by moving objects between four access tiers when access patterns change. By using S3 Intelligent-Tiering to manage storage locations for objects used by Airbnb’s data warehouse, Airbnb reduced storage costs by approximately 27 percent. Additionally, for replicated data stored for backup, the company uses Amazon S3 Glacier storage classes—a range of storage classes that users can choose from based on the data access, resiliency, and cost requirements of their workloads. Airbnb relies on the AWS Cost & Usage Report for hourly insights into data storage spending on Amazon S3.

Airbnb also manages costs within its logging infrastructure using Amazon OpenSearch Service, which makes it easy to perform interactive log analytics, near-real-time application monitoring, website searches, and more. To help lower costs, Airbnb employed UltraWarm storage for Amazon OpenSearch Service, which provides a cost-effective way to store large amounts of read-only data on Amazon OpenSearch Service. The solution contributed to a 60 percent reduction in Airbnb’s Amazon OpenSearch Service costs.

 

Outcome | Maturing Operations and Empowering Teams

Airbnb’s finance and technology teams employed a broad range of AWS resources to build cloud efficiency and optimize operations. To work toward data-driven purchasing, the teams also expanded their consultation and engagement using AWS. And by delivering process and visibility improvements, the company helped empower individuals and teams to adopt cost management goals.

CIONET Circles

CIONET Business Circles

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Cyber Circle

CIONET’s Cyber Circle: a new three-event programme exclusively focusing on the most urgent, complex, and high-impact challenges in cybersecurity today. Launched in 2026, this initiative brings together CISOs, CIOs, and senior IT executives with a strong interest in cybersecurity for three curated gatherings each year. As part of CIONET’s trusted executive community, the Cyber Circle provides a confidential, peer-driven environment to exchange insights, share real-world experiences, and address evolving cyber threats. Each session is designed to foster strategic dialogue, strengthen resilience, and elevate cybersecurity as a core driver of business value.

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Telenet Business Leadership Circle

The Telenet Business Leadership Circle powered by CIONET, offers a platform where IT executives and thought leaders can meet to inspire each other and share best practices. We want to be a facilitator who helps you optimise the performance of your IT function and your business by embracing the endless opportunities that digital change brings.

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Les Rencontres

Découvrez la dynamique du leadership numérique aux Rencontres de CIONET, le programme francophone exclusif de CIONET pour les leaders numériques en Belgique, rendu possible grâce au soutien et à l'engagement de nos partenaires de programme : Deloitte, Denodo et Red Hat. Rejoignez trois événements inspirants par an à Liège, Namur et en Brabant Wallon, où des CIOs et des experts numériques francophones de premier plan partagent leurs perspectives et expériences sur des thèmes d'affaires et de IT actuels. Laissez-vous inspirer et apprenez des meilleurs du secteur lors de sessions captivantes conçues spécialement pour soutenir et enrichir votre rôle en tant que CIO pair. Ne manquez pas cette opportunité de faire partie d'un réseau exceptionnel d'innovateurs numériques !

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Female Leadership Circle

CIONET is committed to highlighting and celebrating female role models in IT, Tech & Digital, creating a leadership programme that empowers and elevates women within the tech industry. This initiative is dedicated to showcasing the achievements and successes of leading women, fostering an environment where female role models are recognised, and their contributions can ignite progress and inspire the next generation of women in IT. Our mission is to shine the spotlight a little brighter on female role models in IT, Tech & Digital, and to empower each other through this inner network community.

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Check out our latest news

Testimonials

Geert Goethals
Geert Goethals
CIO
Sibelga
Bahadir Samli
Bahadir Samli
CIO
ING Belgique
2-Feb-29-2024-11-35-00-9309-AM
Bart Kerkhofs
Director Digital Technology
Tata Steel Nederland
Untitled design (1)-Apr-01-2022-10-58-34-57-AM
Michał Paprocki
Group CIO
Euroclear
1-Feb-29-2024-11-34-59-8990-AM
Manfred Boudreaux-Dehmer
Chief Information Officer
NATO
Untitled design-Nov-22-2023-08-42-05-3178-AM
Annick Faes
Vice President IT and CIO Medical Devices EMEA
Johnson & Johnson
Piet_De_Ceuleners
Piet De Ceuleners
Global IT Director
Melexis
Untitled design-7
Stef Schampaert
Country Managing Director BeLux
Red Hat
Kevin_Ledegen
Kevin Ledegen
Group IT director
SDWorx
Gunter-Van-Craen_Small
Gunter Van Craen
Chief Digital & Information Officer
Bekaert
Thomas Kessler
Thomas Kessler
Partner | CIO Programme Leader
Deloitte
Emmanuel Gob
Emmanuel Gob
CIO
DPD
pascal pauwels
Pascal Pauwels
CIO
Colruyt
Untitled design (4)-Dec-13-2023-10-53-15-5032-AM
Koen Segers
Managing Director Belgium and Luxembourg
Dell Technologies
benoit dewaele
Benoît Dewaele
Group IT Director
Vandemoortele
Dirk Deridder-1
Dirk Deridder
CTO - Technology Services & Practices
SMALS
Untitled design-Sep-18-2023-11-59-29-7866-AM
Koen Vandaele
CIO
Delen Private Bank
Untitled design (4)-Jun-12-2023-01-23-11-7540-PM
Liesbet D'hoker
Managing Director
Kyndryl BeLux
steven-vermeulen
Steven Vermeulen
CIO
Digitaal Vlaanderen
Jack Hamande
Jack Hamande
Director General Digital Transformation
Federale Overheidsdienst Beleid en Ondersteuning
Tom Tomczak
Tom Tomczak
Chief Commercial Officer (CCO)
NRB
an swalens
An Swalens
Head Of IT (CIO)
National Bank of Belgium
Untitled design (2)-Apr-01-2022-10-58-34-68-AM
Elke Laeremans
Chief Technology & Transformation Officer
Krëfel
CIONET Belgium - Advisory Board Member - Koen Van Loo
Koen Van Loo
CIO
Group S.
CIONET Belgium - Advisory Board Member - Steven De Haes
Steven De Haes
Dean
Antwerp Management School
Loic Wydouw BW
Loïc Wydouw
CIO
Carrefour
christel-plessers
Christel Plessers
Head of IT European Markets
Mercedes-Benz Europe
bauduin cor
Baudouin Corlùy
Chief Market Development Officer
LCL Data Centers
Steven Soers b&w
Steven Soers
VP Marketing
Telenet Business
CIONET-Belgium-Advisory-Board-Member-Carl-Tilkin-Franssens
Carl Tilkin-Franssens
Expert Consultant
BDO Belgium
Leen Van Rentergem (1)
Leen Van Rentergem
CIO
KU Leuven
bart van de walle b&w
Bart Van de Walle
CIO Belux
DHL
Jeroen Verbruggen
Jeroen Verbruggen
CIO
Proximus

Team

Luc Hendrikx
Luc Hendrikx
Partner - CEO
Inès De Bien
Inès De Bien
Partner - CCO
1-Feb-08-2022-10-22-08-68-AM
Daniel Eycken
Partner - COO
Hendrik Deckers
Hendrik Deckers
Partner - Founder
foto Herman
Herman Roelandts
Tribe Master
Joseph Antoun
Joseph Antoun
Senior Programme Director
1-Dec-16-2021-02-15-57-02-PM
Eman De Sutter
Programme Manager
4-Feb-08-2022-10-22-09-03-AM
Shelly Deracourt
Programme Manager
Untitled design (5)-Sep-01-2022-02-47-55-60-PM
Charlotte Coen
Partner Success Manager
Untitled design (1)-Nov-22-2023-08-56-42-6802-AM
Ivana Bradvica
Programme Manager
Vlera Berishaa (1)
Vlera Berisha
Community Manager
Stanislav Mosan
Stanislav Mosan
Financial Director

Contact us

Would you like to know more about CIONET Belgium, membership or partnership opportunities? Do you have feedback or any other question? Send us a message!