Attendees walk through an exposition hall at AWS re:Invent, a conference hosted by Amazon Web Services, in Las Vegas on Dec. 3, 2024.
LONDON — Britain's competition regulator on Thursday said that Microsoft and Amazon are hurting competition in the cloud computing industry and called for a probe into their market dominance under the country's strict new tech rules.
The Competition and Markets Authority said that market concentration and barriers to entry in the cloud services market have enabled both Microsoft and Amazon to hold "significant unilateral market power" and reap financial gain exceeding the cost of capital expenditure over a sustained period.
Tech giants like Amazon, Microsoft and Google have built huge businesses by offering access to computing resources — such as data storage and processing — via the internet using data centers, large facilities that contain dedicated hardware.
The CMA is concerned that certain practices within the space, such as egress fees and unfavorable licensing terms, are creating a "lock-in" effect where businesses are getting trapped into contractual agreements that are difficult to get out of.
Microsoft said the regulator's decision "misses the mark again, ignoring that the cloud market has never been so dynamic and competitive, with record investment, and rapid, AI-driven changes."
"Its recommendations fail to cover Google, one of the fastest-growing cloud market participants," a Microsoft spokesperson told CNBC via email.
Amazon also disputed the CMA's findings and said recommendations for a fresh probe into the two tech giants' dominance of cloud were "unwarranted."
"It risks making the UK a global outlier at a time when businesses need regulatory predictability for the UK to maintain international competitiveness," an Amazon spokesperson told CNBC.
Google praised the CMA's move, calling it a "watershed moment" for the U.K. Swift action will be "essential to ensure British businesses pay a fair price and to unleash choice, innovation and economic growth in teh U.K.," Chris Lindsay, Google's vice president of customer engineering for EMEA, said in a statement.