Genesis Plan Success: FY 2025 Preliminary Figures Show Significant Progress

Cash and Profitability Targets Exceeded Revenue Target Achieved Book-to-bill in Line with Expectations Paris, January 21, 2026 FY 2025 revenue estimated at €8,001 million – or €8,030 million at September 30 currency, in line with target Inflexion point in top line trajectory reached in Q4 2025: quarter-on-quarter improvement in estimated Group organic revenue performance, to -9.3% yoy Q4 2025 revenue estimated at €2,004 million Atos Strategic Business Unit (SBU) estimated revenue down –9% organically (vs –19.3% in Q3 2025) to €1,738 million Eviden SBU estimated revenue of €265 million, a 11.2% decrease on an organic basis FY 2025 estimated net change in cash[1] limited to c. €-327 million, above target Delivered without any usage of account receivable factoring or specific optimization on trade payables Including estimated restructuring impact of €431 million Strong liquidity position at year-end at €1,707 million Q4 2025 book-to-bill at 122%, in line with expected acceleration in year-end order entry level Atos SBU at 106%, driven by strong performance in North America, Germany and Benelux Eviden SBU at 229%, including the signature of the Alice Recoque supercomputer contract in HPC FY 2025 operating margin expected to exceed target, at above €340m (representing above 4% of revenues) Longer-term ambitions unchanged Access the full press release *** About Atos Group Atos Group is a global leader in digital transformation with c. 63,000 employees and annual revenue of c. €8 billion, operating in 61 countries under two brands — Atos for services and Eviden for products. European number one in cybersecurity, cloud and high performance computing, Atos Group is committed to a secure and decarbonized future and provides tailored AI-powered, end-to-end solutions for all industries. Atos Group is the brand under which Atos SE (Societas Europaea) operates. Atos SE is listed on Euronext Paris. The purpose of Atos Group is to help design the future of the information space. Its expertise and services support the development of knowledge, education and research in a multicultural approach and contribute to the development of scientific and technological excellence. Across the world, the Group enables its customers and employees, and members of societies at large to live, work and develop sustainably, in a safe and secure information space. Contacts Investor Relations: investors@atos.net Individual shareholders: +33 8 05 65 00 75 Media Relations: globalprteam@atos.net