Atos SE is a European multinational information technology (IT) service and consulting company[3][4][5][6] with headquarters in Bezons suburb of Paris, France, and offices worldwide.

[11][12] From 2022 to 2024 there were negotiations with Czech billionaire Daniel Křetínský to sell Atos for about $2 billion, which ended in failure in February 2024.

[17] In November 2008, the boardroom battle came to an end when Thierry Breton replaced Philippe Germond as chairman and CEO.

In November 2011 Atos and software services provider Ufida International Holdings formed the joint venture Yunano.

[26] In August 2014, Atos announced that it had acquired a controlling stake in Bull SA through a tender offer launched in May.

[31] In April 2018, Atos announced a global partnership with Google Cloud to help offer secure artificial intelligence systems.

[32][33] As part of this partnership, the two companies would create common offerings and open "labs" dedicated to artificial intelligence in London, Dallas, Munich and Paris.

[38] In June 2020, Atos, GENCI and CEA revealed the "Joliot-Curie" supercomputer which would help in academic and industrial open research.

Following the launch of the brand, the main areas of focus for Atos were data centers and hosting, digital workplaces, unified communications and business process outsourcing.

Eviden will focus on professional services and consulting, bringing together Atos' digital, big data and security divisions.

According to Le Monde, it had missed several sectoral shifts and "made a series of poor strategic decisions until it imploded", prompting the biggest French collapse of the last five years.

[46] Atos faced being "dismantled and wiped off the map", with its managed IT services division set to be acquired by Czech billionaire Daniel Kretinsky, and its cybersecurity and supercomputer expertise going to Airbus, leaving its digital consulting business to go to Onepoint.

[46] In April 2024, it reported total debts of almost €5 billion, and was exploring financial restructuring options to stabilise its finances; in May 2024, Atos was considering four competing bids to inject new money into the firm.

[53] At that time, Atos held £3 billion worth of UK government contracts providing services to a wide range of organizations including NHS Scotland, Home Office,[54] Welsh Government,[55] the Ministry of Defence,[56] Transport for Greater Manchester,[57] the BBC,[58] SLC[59] and a multimillion outsourcing contract to NS&I.

[61] In August 2015, statistics from the DWP showed that 2,380 people had died between 2011 and 2014 soon after being found fit for work through disability benefit assessments.

[62] In 2014, "the DWP negotiated an early exit from the existing WCA contract with the private firm, Atos, after raising concerns about the quality of its work".

[65] The Press Association said in 2017 that Atos, used by the DWP to make its decisions, were due to be paid more than £700m for their five-year contracts against an original estimate of £512m.

"[citation needed] Mark Serwotka of Public and Commercial Services Union described the assessments as "designed to harass vulnerable people and take their benefits away rather than provide support and guidance.

Doctors, MPs and disabled people all believe the tests should be scrapped so, instead of replacing the failed Atos with another profit-hungry provider, the government should bring the work in-house and invest in it properly.

[76] During the first week of the Paralympics in the summer of 2012, activists and disabled people targeted Atos in a series of nationwide protests.