Paris, April 13, 2026 – Sopra Steria, a leading technology player in Europe, announces the launch of a sovereign, European, and 100% open‑source collaborative suite, designed for public and private organizations that must reconcile control over their data, regulatory compliance, and service continuity for their employees.
Addressing a Strategic Imperative
The growing footprint of proprietary collaborative suites now exposes organizations to major risks such as technological dependency and vulnerability to extraterritorial legislation. For stakeholders responsible for essential missions, control over collaboration tools has become as strategic as control over the infrastructures themselves.
To address this challenge, Sopra Steria has developed a sovereign collaborative suite built on the most mature open‑source components available on the market.
This solution is grounded in a deep understanding of real‑world use cases and operational constraints, acquired through decades of close collaboration with public and private organizations. It contributes to the public open‑source ecosystem, in line with government guidelines on sharing digital resources.
An Open, Modular, and User‑Centric Suite
The solution was designed by placing the user at the heart of every architectural and ergonomic decision. The objective is to minimize the impact of change, preserve continuity in working practices, and offer a familiar environment tailored to different user profiles.
It brings together all everyday tools within a seamless usage continuum—email, file storage and sharing, collaborative office tools, calendar, instant messaging, videoconferencing, and note‑taking—within a complete, coherent, and disruption‑free digital workspace. The suite also natively integrates email protection mechanisms against the most common threats, including spam, phishing attempts, and fraudulent messages.
Its open and modular platform architecture makes it possible to integrate new components as ecosystems mature, without calling existing solutions into question. It promotes interoperability and compatibility with market solutions. Sopra Steria is also committed as a contributor to the open‑source technologies integrated into its collaborative suite. The code is open and available for the benefit of the entire public and private ecosystem.
Two Deployment Models for Effective Sovereignty
The suite is built on an industrial‑grade foundation that meets the most stringent requirements in terms of security, compliance, and reversibility. Two deployment models are offered: on SecNumCloud‑qualified infrastructure operated by a sovereign hosting provider, or directly on‑premises. This flexibility is essential for organizations handling sensitive data, for which the SaaS model is not always a sufficient solution.
“The collaborative suite lies at the heart of digital resilience challenges. We leverage our industrial strength as a global integrator and our in‑depth field expertise in support of an open ecosystem. Our conviction is that the success of such a project depends above all on human support. This is the ambition we pursue alongside our public and private clients,” comments Elias Tahtah, Deputy CEO, Sopra Steria France.
Beyond technology, Sopra Steria advocates an operational vision of digital sovereignty, conceived as a sustainable ability to retain control over technological choices over time. This approach is rooted in support and guidance: identifying real risks, prioritizing actions, and building tailored roadmaps adapted to each context. By turning sovereignty into a tangible lever for resilience and sustainability—combined with its industrial integration capabilities—Sopra Steria aims to underpin the value proposition of its offering