Brussels / 3 & 4 February 2024



FOSDEM would not be possible without the generous help of our sponsors. Thank you very much!

If you are interested in sponsoring FOSDEM, send us an email at or see our contact page for more information.

While FOSDEM is primarily funded by sponsors and the sale of t-shirts, we also gratefully accept voluntary donations. See our donations page for more information.

Cornerstone sponsor


Google believes that open source is good for everyone. By being open and freely available, it enables and encourages collaboration and the development of technology.

For more information, visit

Google supports the event financially.

Main sponsors

(in alphabetical order)


Arm is leader in global semiconductor design and software. Our energy-efficient processor designs and software platforms have enabled advanced computing in more than 270 billion chips to date and are defining the future of computing. Collaboration is at the heart of all we do. With more than 1,000 technology partners, Arm provides a trusted foundation for a vast range of applications, from the sensor to the smartphone and the supercomputer. We support thousands of open-source software projects, enabling more than 15 million developers who target Arm platforms to build, deploy, and manage their projects seamlessly, enabling top performance across the wide spectrum of hardware on Arm.

Arm supports the event financially.


Centreon is a leading provider of open-source IT monitoring solutions, empowering organizations to ensure the performance and reliability of their critical infrastructure. The company is dedicated to making IT monitoring accessible, efficient, and scalable.

We know from experience that organizations of all sizes benefit from the extra freedom of Open Source software to create a bespoke IT Ops environment. We’re proud of our Centreon Open Source project that we started in 2005 and is now used by over 250,000 IT Professionals all over the world!

No two organizations are exactly alike – each has a unique infrastructure and application profile based on history and anticipated future needs. Centreon adapts precisely to each operating universe “out of the box” and extends further with the contributions of “The Watch”, its users community. With a commitment to fostering collaboration and technological advancement, Centreon has been a steadfast supporter of the open-source community.

Visit Centreon’s website to learn more about our comprehensive monitoring platform and how it can enhance your organization’s IT operations.

Centreon proudly supports FOSDEM 2024, contributing to ensure the success of this collaborative and knowledge-sharing event.

Centreon supports the event financially.


Cisco enables people to make powerful connections - whether in business, education, philanthropy, or creativity. Cisco hardware, software, and service offerings are used to create the Internet solutions that make networks possible - providing easy access to information anywhere, at any time.

Cisco was founded in 1984 by a small group of computer scientists from Stanford University. Since the company’s inception, Cisco engineers have been leaders in the development of Internet Protocol (IP)-based networking technologies.

Today, with more than 67,000 employees worldwide, this tradition of innovation continues with industry-leading products and solutions in the company’s core development areas of routing and switching, as well as in advanced technologies such as Application Networking, Data Center, Digital Media, IPICS, Mobility, Security, Storage Networking, TelePresence, Unified Communications, Video and Virtualization

Cisco provides all of our WLAN hardware and helps us setting up the wireless network.


Colt provides network, voice, and data centre services to thousands of businesses around the world, allowing them to focus on delivering their business goals instead of the underlying infrastructure. Customers include 18 of the top 25 banks and diversified financial groups and 19 out of the top 25 companies in both global media and telecoms industries (Forbes 2000 list, 2014). In addition, Colt works with over 50 exchange venues and 13 European central banks.

Colt operates across Europe, Asia and North America with connections into over 200 cities globally. It completed the acquisition of KVH in 2014, an integrated managed communications and IT infrastructure services business, with headquarters in Tokyo and operations in Hong Kong, Seoul and Singapore.

Colt sponsors an internet uplink at FOSDEM. is an open source, browser based diagramming application that can be consumed online, as a desktop app, or deployed locally in a variety of formats. The core of the product started in 2005 and powers diagramming across a range of visualization solutions in some of the world’s largest companies. Today, the free online version is used by 6 million people every month and enjoys the community support afforded by making both the source code and project development open to all.

For more information visit supports the event financially.


We at Dstny are a European leader and innovator in secure cloud communications, based on our powerful UCaaS offer and technology. Over 2 million business users are empowered to communicate, collaborate, and provide excellent customer service with our tools at hand. We enable service providers, partners, and end-users as well as 3rd party services to thrive in our ecosystem. With headquarters in Brussels, we have more than 700 employees in 7 European countries and an annual turnover of close to €190 million in 2021.

Dstny sponsors an internet uplink at FOSDEM.

Eclipse Foundation

The Eclipse Foundation is a European international nonprofit association based in Brussels, Belgium. Already the largest open source organization in Europe, with 170 member organizations and 900+ committers based across the continent.

The Eclipse Foundation provides our global community of individuals and organizations with a mature, scalable, and business-friendly environment for open source software collaboration and innovation. We provide a proven governance framework and processes for entrepreneurial collaboration on sustainable, commercializable open source software that benefits developers, companies, and users alike. We do this by enabling members to contribute to projects organized in Working Groups and powered by our infrastructure and support in multiple areas like IP policy, marketing, and community building. Currently, there are 400+ Eclipse projects.

The Eclipse Foundation supports the event financially.


Element is an open source messaging and collaboration platform.

We give people and organisations back their digital sovereignty by decentralising conversations, letting you host yourself or through a hosting provider such as Element Matrix Services.

Element is built on Matrix - an open network for secure, decentralised communication - for easy connectivity with any of the 44M addressable users on the public Matrix network. Additional privacy is provided by end-to-end encryption, protecting instant messaging, 1:1 voice and video calls, and file sharing.

Element was founded by the team behind Matrix as a way to bring it to the mainstream.

Element provides the chat infrastructure.


First released in 2008, OpenNebula has become the only European open source technology for cloud-edge orchestration and management, supporting both KVM virtual machines and Kubernetes clusters. OpenNebula Systems was born in 2010 in order to provide professional support to corporate users and sustain the development of the project in the long term. With more than 5,000 organizations running an OpenNebula cloud worldwide, OpenNebula Systems helps organizations from many different sectors to adopt a vendor-neutral, multi-provider approach for building their private, public, and hybrid clouds.

OpenNebula Systems is headquartered in Madrid (Spain) but became a full-remote company in 2021, hosting a growing, global team of open source enthusiasts. Apart from being a corporate member of the Linux Foundation, the CNCF, and Gaia-X, OpenNebula Systems plays a key role in shaping Europe’s next-generation edge cloud, chairing the Cloud/Edge Working Group of the “European Alliance for Industrial Data, Edge and Cloud” while coordinating the actions and EU-funded projects launched by the SovereignEdge.EU initiative. For more information, visit

OpenNebula Systems supports the event financially.

Université Libre de Bruxelles

The Université Libre de Bruxelles (or ULB) is a French-speaking university in Brussels, Belgium. It has about 20,000 students.

The ULB very substantially supports the event by providing us with the location as well as infrastructure on-site.