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.

Google supports the event financially.

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.

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.

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.

As a leading player in global FX and digital assets, LMAX Group is shaping the future of capital markets. Our rapidly expanding global institutional and professional client base is a testament to our distinctive business model that delivers efficient market structure and transparent, precise, consistent execution to all market participants. LMAX Group operates three established regulated businesses – LMAX Exchange, LMAX Global and LMAX Digital.

Servicing funds, banks, asset managers, retail brokerages and buy-side institutions in over 100 countries, LMAX Group has developed a strong global presence with offices in 9 countries. The Group builds and runs its own high performance, ultra-low latency global exchange infrastructure, which includes matching engines in London, New York, Tokyo and Singapore.

LMAX Group supports the event financially.

Percona is widely recognized as a world-class open source database software, support, and services company for MySQL®, MongoDB®, PostgreSQL®, Valkey®, and Redis® databases in on-premises and cloud environments. We are dedicated to helping make your databases and applications run better through a unique combination of expertise and open source software.

Percona supports the event financially.

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

The ULB substantially supports the event by providing us with the location at cost, as well as allowing the use of infrastructure on-site.