Atos has announced the completion of the sale of Bull, its advanced computing business, to the French State for an enterprise value of up to 404 million euros, marking a new milestone in its strategic refocusing.
The consideration includes 104 million euros in contingent earn-outs, a slight decrease from the 110 million initially projected when the agreement was signed in July 2025. This adjustment reflects a change in the scope of the transaction, with the exclusion of zData, an entity specializing in Big Data solutions.
The divested business, which comprised the high-performance computing, quantum, business computing, and artificial intelligence divisions, generated approximately 700 million euros in revenue in 2025. Until now, it served as a pillar of the Eviden branch, dedicated to the group's products and systems. Following this operation, Eviden is refocusing on activities deemed more strategic, namely cybersecurity, critical systems, and AI-augmented video analytics. On a pro forma basis, its revenue stands at approximately 300 million euros for the 2025 fiscal year.
With this acquisition, the French State becomes the sole shareholder of Bull, asserting its commitment to securing key expertise in sensitive technological fields, particularly intensive computing and artificial intelligence. This takeover is part of an industrial sovereignty logic, amid increased competition surrounding critical digital infrastructure.
For Atos, the divestment illustrates the continuation of a strategic refocusing initiated several months ago, aimed at simplifying its portfolio and concentrating resources on higher value-added activities. While the transaction helps clarify the group's positioning and streamline its perimeter, it also results in the exit of a significant technological asset. Investors are therefore expected to assess the impact in light of the group's financial trajectory and its ability to accelerate its new development axes.
AtoS SE is one of the world leaders in IT services. The group's activity is organized around three sectors:
- outsourcing services and consulting services;
- system integration;
- supply of transaction services: electronic payment transaction processing, remote payment management, development of payment solutions, etc. The group also develops an externalization of operating processes activity.
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