Paris, 24 February 2026 – Sopra Steria, a major player in the European tech sector, announces the strengthening of its position in sovereign cloud through the integration and configuration of OVHcloud’s On-Prem Cloud Platform (OPCP), which enables the deployment of a complete cloud platform directly on site.

This collaboration illustrates the complementarity between an industrial-grade European cloud platform and Sopra Steria’s expertise in support of critical environments. It also forms part of the continuation of Sopra Steria’s positioning under the ESTIA programme, which aims to develop and demonstrate sovereign technological capabilities serving critical environments.

Designed to meet the needs of organisations facing stringent security and sovereignty requirements, OVHcloud’s OPCP solution makes it possible to deploy a complete cloud platform directly on site, including within isolated or strategic environments, while remaining entirely disconnected from the Internet (air-gapped).

A sovereign cloud deployed in close proximity to operations

Thanks to its expertise in secure architectures and sensitive environments, Sopra Steria supports the operational deployment of the OPCP platform within the infrastructures of institutional or industrial clients across Europe. This approach enables both public and private organisations to benefit from technological continuity with cloud environments while meeting the specific constraints associated with highly secure contexts, particularly air-gapped ones.

Deployable in internal data centres, on industrial sites, or within strategic environments, this solution is particularly suited to contexts requiring a high level of isolation, resilience, and operational control.
Guy Fournier, Public Sector Director, OVHcloud, said: “OPCP provides the power and agility characteristic of the Cloud while allowing organisations the strategic choice of hosting their data and workloads within their own environments, in line with their sovereignty and security requirements. Our collaboration with Sopra Steria demonstrates the capacity of a European ecosystem to deliver concrete solutions for critical infrastructures”.

Industrial capability serving critical environments

By positioning itself among the first European integrators and configurators of OVHcloud’s OPCP, Sopra Steria is establishing a dedicated operational capability for implementing sovereign cloud architectures based on proven European technologies.
This expertise is built upon:

• Its strategic and technological partnership with OVHcloud.
• Its mastery of secure architectures.
• Its experience of critical environments.
  
  

Thierry Lempereur, Director of the Defence and Security vertical, Sopra Steria France, said: “The deployment of OVHcloud’s On-Prem Cloud Platform concretely demonstrates our ability to design and operate sovereign cloud architectures suited to the most sensitive environments. By positioning ourselves as one of the first European integrators of this platform, we reaffirm Sopra Steria’s commitment to supporting institutional and strategic stakeholders over the long term in controlling their digital infrastructures, in the service of the sovereignty and resilience of European information systems.” 

A contribution to European digital sovereignty

This initiative forms part of the continuity of Sopra Steria’s ESTIA programme, which aims to develop and demonstrate sovereign technological capabilities serving critical environments.

Through the integration of OVHcloud’s OPCP, Sopra Steria is putting into practice the principles underpinning this approach: technological autonomy, protection of sensitive assets, and resilience of European digital infrastructures.

It thus contributes to the development of an ecosystem of sovereign cloud solutions based on European technologies and tailored to the needs of both public and private stakeholders.