Company Profile

Supporting our clients in their digital ambitions

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“Our vision for the future: to accelerate progress by uniting people, business and technology”

– Thierry Breton, Chairman & CEO –

Atos is a global leader in digital transformation with 120,000 employees in 73 countries and annual revenue of over € 12 billion. European number one in Cloud, Cybersecurity and High-Performance Computing, the Group provides end-to-end Orchestrated Hybrid Cloud, Big Data, Business Applications and Digital Workplace solutions through its Digital Transformation Factory, as well as transactional services through Worldline, the European leader in the payment industry.


With its cutting-edge technologies and industry knowledge, Atos supports the digital transformation of its clients across all business sectors.


The Group is the Worldwide Information Technology Partner for the Olympic & Paralympic Games and operates under the brands Atos, Atos Syntel, Unify and Worldline. Atos is listed on the CAC40 Paris stock index.

Our Expertise

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Big Data & Security

Big Data & Security

We create competitive advantage for our clients from Big Data, and ensure data is delivered safely and securely to the right parties.

Consulting & Systems Integration

Business & Platform Solutions

We transform strategic approaches to technology, combining innovative solutions with established ones.


Digital payments and e-Transactions

Through Worldline, we provide unrivalled leadership in expert solutions for the fast- changing payment and digital services market.

Managed Services

Infrastructure & Data Management

We create business benefits through intelligently managed IT and digital services.

Communication Software & Platforms

Unified Communication & Collaboration

Unify, we combine voice, data and video, to help our customers benefit from a unique collaboration experience.

We deliver worldwide







Our recent achievements

Atos technologies: mastering the data challenge

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Faster, higher, stronger. A new era for Olympic technology

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Growing our North America presence through innovation

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Worldline: pioneering the future of payments and digital services

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The origin of Atos

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Merger between Axime and Sligos

1997 - Merger of two French based IT services companies – Axime and Sligos

Atos was formed from the merger in 1997 of two French-based IT services companies –Axime and Sligos – each of which had been established out of earlier mergers. By 2000, Atos employed 11,000 staff and generated annual revenues of approximately € 1.1 billion.
Merger between Atos and Origin

2000 - Merger between Atos and Origin

Origin was a subsidiary of Royal Philips Electronics, which had been formed in 1996 from the merger of BSO/Origin and Philips Communications. At the time of the merger with Atos in October 2000, Origin employed more than 16,000 staff in 30 countries worldwide and generated annual revenues of approximately € 1.6 billion.
Creation of Atos Consulting

2002 - Creation of Atos Consulting

KPMG Consulting’s businesses in the United Kingdom and The Netherlands were acquired in August 2002 to establish Atos Consulting. This transaction provided the Group with a major presence in the Consulting segment of the IT services market.
Acquisition of Sema Group

2004 - Acquisition of Sema Group

Sema Group was acquired from Schlumberger in January 2004, thereby creating one of the leading European IT services companies. At the time of the acquisition, Sema Group employed 20,000 staff and generated annual revenues of approximately € 2.4 billion. Atos Origin employed 26,500 staff, generating annual revenues of more than € 3 billion.
Acquisition of Siemens IT Solutions and Services

2011 - Acquisition of Siemens IT Solutions and Services

On July 1, 2011, Atos announced that it has completed the acquisition of Siemens IT Solutions and Services – to become a new IT champion. The deal created a new company with pro forma 2011 annual revenues of € 8.5 billion and 74,000 employees across 48 countries. Ranked in the top ten global IT services providers; number five in managed services worldwide and the number one European player in Europe, the new company is a powerful combination of two highly complementary organizations.
Acquisition of Bull, the world leader in Cloud, Cyber-security and Big Data

2014 - Acquisition of Bull, the world leader in Cloud, Cyber-security and Big Data

On August 11, 2014, Atos announced the successful completion of the tender offer launched by Atos for all the issued and outstanding shares in the capital of Bull. The transaction represented a key milestone in the creation in Europe of a world leader in Cloud, Cyber-security, and Big Data. The deal created a new company annual revenue of circa €10 billion and 86,000 employees in 66 countries.
Acquisition of Xerox ITO

2015 - Acquisition of Xerox ITO

On July 1, 2015, Atos announced that it has completed the acquisition of Xerox ITO, of which the business is mainly in the United States. As a result, Atos totals 93,000 employees across 72 countries.
Acquisition of Unify

2016 - Acquisition of Unify

As of February 1st, 2016, Atos completes the acquisition of Unify from Gores Group and Siemens, creating a unique integrated proposition for unified communications to improve business performance and support digital transformation. The Services activity of Unify (c. € 0.4 billion annual revenue) is integrated in the Atos Division “Infrastructure & Data Management”.

Our brands

Atos brand

We are a leader in digital services serving a global client base. Atos is the masterbrand of the Group, providing the fundamental values and identity that the sub-brands are based on.

Atos Worldgrid

Atos Worldgrid is an Atos subsidiary to deliver integration projects and real time Smart Energy solutions to Energy & Utilities companies across the power, water, oil & gas value chains.

Read more about Atos Worldgrid

Unify is the Atos brand for unified communication and real time capabilities enhancing social collaboration, digital transformation, and business performance of its clients.


Worldline is an Atos company and the European leader in the payments and transactional services industry. Worldline employs circa 11,000 people worldwide, with estimated pro forma revenue of circa 2.3 billion euros on a yearly basis.