The Big Three Hold Their Lead as the Cloud Market Grows 43 Percent

AWS, Microsoft and Google split 63 percent of cloud infrastructure spending

Amazon Web Services is still the largest cloud provider in the world, but its lead is no longer growing. Synergy Research Group, which tracks the market from company filings and channel data, estimates that Amazon held 28 percent of worldwide cloud infrastructure services revenue in the second quarter of 2026, Microsoft 20 percent and Google 15 percent. Together the three hold 63 percent of the total market, and 67 percent of the public cloud segment where companies rent computing power and platforms by the hour.

The quarter was the biggest in the history of the market. Enterprises spent 143.4 billion dollars on cloud infrastructure services between April and June 2026, 43 percent more than a year earlier and the highest growth rate Synergy has recorded in eight years. It was also the eleventh quarter in a row in which the growth rate went up, not down. Over the twelve months to June the market reached about 500 billion dollars, double its size of eleven quarters earlier.

That combination explains the headline of this page. The Big Three are holding their dominant share in a market that is accelerating, not maturing. Each of them is growing faster than a year ago, yet the order and the rough gaps between them have barely moved since 2023. What has changed is the speed: Google has added four points of share in three years, Amazon has given up four, and a new group of GPU rental specialists has started to appear in the rankings below them.

Three companies, 63 percent: Amazon, Microsoft and Google together took 63 cents of every dollar spent on cloud infrastructure services in Q2 2026, and the other 37 percent is split among dozens of providers.

The 37 percent held by everyone else is far more fragmented than the top of the market. Synergy ranks more than 40 providers by infrastructure revenue, and in Q2 2026 no company outside the top three held more than about 4 percent. Oracle, Alibaba, Salesforce, Huawei, Tencent, IBM and the large Chinese telecom operators each sit in the low single digits, and nine so called neoclouds, companies that rent out graphics processors for artificial intelligence work, are now among the 40 largest providers by revenue.

Market share here means a share of revenue from cloud infrastructure services: infrastructure as a service (IaaS), platform as a service (PaaS) and hosted private cloud. It excludes software as a service, such as Microsoft 365, Salesforce applications or Google Workspace, which Synergy tracks as a separate and much more fragmented market. That definition matters for Microsoft in particular, because much of its cloud revenue comes from software subscriptions that do not count here.

The cloud provider ranking, from AWS to the neoclouds

The table below puts the market share estimates next to what each company itself reports about its cloud business. The two do not always line up, because companies define their cloud segments differently from the analysts. Amazon reports AWS as a single segment. Alphabet reports Google Cloud, which also includes Workspace subscriptions. Microsoft discloses only a growth rate for Azure. Oracle splits out its infrastructure revenue, and Alibaba now combines cloud with its chip unit.

Shares from Synergy Research Group; tier two values are read from Synergy charts for the quarter shown and are rounded. Revenue and growth from company earnings releases. Alibaba converted at the rate used in its release. n/a: not published in a comparable form.

The ranking is very top heavy. Google, in third place, is roughly three to four times the size of the providers in fourth place, and Synergy noted at the end of 2025 that the gap between Google and Alibaba was still widening. Below the top five the market is a long tail of companies with 1 or 2 percent each: software firms such as Salesforce and SAP, data platforms such as Snowflake, network specialists such as Akamai, and the Chinese state telecom operators China Mobile, China Telecom and China Unicom, which serve their home market.

A steep drop after third place: Google, in third place, is more than three times the size of Alibaba and Oracle, which share fourth place at about 4 percent each.

The newest names in the table are the neoclouds. CoreWeave entered the top ten at the end of 2025 with more than 1.5 billion dollars of cloud revenue a quarter, and Synergy placed it at about 2 percent of the market in Q2 2026. Crusoe, Nebius, Lambda and Nscale are smaller but among the fastest growing providers anywhere. Synergy also lists OpenAI and Anthropic among the fastest growing tier two providers, a sign that companies building AI models are starting to sell computing capacity as well as buying it. In Q1 2026 neoclouds together accounted for about 5 percent of the total cloud market and a much larger share of the AI focused segments.

A 143 billion dollar quarter and a market growing 43 percent a year

The cloud infrastructure market has not just grown in 2026, it has sped up. Synergy measured year on year growth of 22 percent at the end of 2024, 25 percent through most of 2025, 30 percent in Q4 2025, 35 percent in Q1 2026 and 43 percent in Q2 2026. For a market of this size that is unusual: mature technology markets normally slow as they grow, and the cloud did exactly that between 2021 and 2023 before generative AI reversed the trend.

In dollars, the market added more than 43 billion dollars of quarterly revenue in a single year. Spending rose by about 12 billion dollars between Q3 and Q4 2025, by 9.5 billion dollars between Q4 2025 and Q1 2026 and by almost 15 billion dollars between Q1 and Q2 2026. Synergy attributes the acceleration mainly to generative AI: public IaaS and PaaS grew 47 percent in Q2 2026, and services built specifically for generative AI grew 165 percent.

Eleven quarters of acceleration: quarterly cloud revenue rose from 90.6 billion dollars at the end of 2024 to 143.4 billion dollars in Q2 2026, and the year on year growth rate climbed to 43 percent, the fastest in eight years.

The annual series shows the same story over a longer period. Cloud infrastructure services revenue was 129 billion dollars in 2020, the first pandemic year, and 178 billion dollars in 2021. Growth then slowed as companies optimised their cloud bills, to about 227 billion dollars in 2022 and 270 billion dollars in 2023. The AI wave lifted it to 330 billion dollars in 2024 and 419 billion dollars in 2025, a gain of 89 billion dollars or about 27 percent in one year.

The first half of 2026 alone produced 272.0 billion dollars of revenue, 41 percent more than the 192.7 billion dollars of the first half of 2025. If the second half only matched the first, 2026 would already exceed 540 billion dollars; with the current growth rate it will be considerably more. BusinessStats does not publish a projection here, because Synergy has not issued a full year 2026 figure and quarterly growth has surprised on the upside for eleven quarters in a row.

Tripled in five years: the market grew from 129 billion dollars in 2020 to 419 billion dollars in 2025, and 2025 alone added 89 billion dollars, the largest annual increase in the series.

These figures are smaller than many headline numbers about the cloud because they cover infrastructure services only. Broader estimates that add software as a service are far higher: Gartner, for example, forecast in November 2024 that worldwide end user spending on all public cloud services would total 723 billion dollars in 2025. Both kinds of number are valid, but they answer different questions, and the market shares on this page only make sense against the narrower infrastructure base. The physical side of the same boom, from server halls to power use, is covered in our data center statistics.

How the market shares of the Big Three have moved since 2023

Looked at over three years, the shares of the three leaders have moved slowly and in one direction each. Amazon fell from 32 percent in Q2 2023 to 28 percent in Q2 2026. Synergy notes that Amazon held a little over 32 percent through 2021 and that the four quarters to Q3 2025 were the first in which it averaged below 30 percent. The decline is gradual and reflects slower growth than the market, not falling revenue: AWS sales have risen every year.

Google moved the other way, from 11 percent in 2023 to 12 percent in 2024, 13 percent in mid 2025, 14 percent at the turn of the year and a record 15 percent in Q2 2026. Microsoft is the hardest to read. Its estimated share peaked at about 24 to 25 percent around the turn of 2023 and 2024, fell back to between 20 and 22 percent through 2024 and 2025 and was 20 percent in the latest quarter. Synergy estimates Microsoft infrastructure revenue from limited disclosures, so swings of one or two points partly reflect estimation rather than real change.

Google gains, Amazon drifts: Google rose from 11 to 15 percent in three years while Amazon slipped from 32 to 28 percent; Microsoft has moved between 20 and 24 percent without a clear trend.

The combined share has been more stable than any single company. Synergy put the three together at 61 percent in Q3 2023, 62 percent in Q3 2024 and 63 percent in Q3 2025, and they were again at 63 percent in Q2 2026. In other words the leaders as a group are not losing ground to challengers; share is moving between the three of them, mainly from Amazon to Google, while smaller providers such as Alibaba, Salesforce and IBM grow more slowly than the market and lose share to Oracle and the neoclouds.

Why AWS can be 28 or 32 percent depending on the tracker

Search for cloud market share and you will find several sets of numbers for the same quarter. The differences are not errors; each research firm draws the boundary of the market in a slightly different place. Synergy includes hosted private cloud in its total, which adds revenue from many smaller and regional providers and lowers the share of the leaders. Omdia, which absorbed the cloud tracking business of Canalys, measures a narrower set of public infrastructure services, so the leaders take a larger slice.

Synergy release of 5 February 2026; Omdia release of 26 March 2026. Omdia combined share is a BusinessStats sum of its three published shares.

The direction of travel is the same in both datasets: AWS first, Microsoft second, Google third, growth near 30 percent at the end of 2025, and Google the fastest grower of the three (Omdia measured Google Cloud growth at 50 percent in Q4 2025, Azure at 39 percent and AWS at 24 percent). The gap between AWS and Microsoft is where the trackers disagree most, between 7 and 10 points. Readers comparing numbers across articles should check which tracker and which quarter a figure comes from before drawing conclusions about who is gaining.

Company revenue does not settle the question either. AWS reported 42.2 billion dollars of sales in Q2 2026, more than 28 percent of the 143.4 billion dollar market (which would be about 40 billion dollars). A company segment and an analyst market estimate never cover exactly the same revenue, and Synergy also counts revenue from many providers that do not publish segment figures at all. That is why this page uses Synergy shares for market position and company filings for revenue, growth and profit, and keeps the two clearly apart.

What AWS, Microsoft and Google report about their cloud businesses

Amazon Web Services had sales of 42.2 billion dollars in Q2 2026, up 37 percent from 30.9 billion dollars a year earlier, the fastest growth in 18 quarters. Amazon said AWS had reached an annualised revenue run rate of 169 billion dollars and that its AI business and its custom chips business (Graviton, Trainium and Nitro) each exceeded a 25 billion dollar run rate. For the full year 2025 AWS sales were 128.7 billion dollars, up from 107.6 billion dollars in 2024. AWS is a minority of Amazon sales but a large share of its profit; our page on Amazon operating income by segment tracks that split over time.

Google Cloud reported revenue of 24.8 billion dollars in Q2 2026, up 82 percent from 13.6 billion dollars. That followed growth of 48 percent in Q4 2025 and 63 percent in Q1 2026, so the business has been accelerating for three quarters in a row. Alphabet chief executive Sundar Pichai linked the jump to demand for AI infrastructure and AI solutions. Google Cloud revenue for 2025 as a whole was 58.7 billion dollars, the sum of its four reported quarters. Its share of total Alphabet revenue is rising, as our Alphabet annual revenue data shows.

The gap stopped widening: AWS added 11.4 billion dollars of quarterly revenue between Q2 2025 and Q2 2026 and Google Cloud added 11.1 billion dollars, almost the same amount from a base less than half the size.

Microsoft is the exception among the three because it does not publish Azure revenue in dollars each quarter. It reports a growth rate for Azure and other cloud services, which reached 43 percent in the quarter to June 2026, and it said that Azure revenue passed 100 billion dollars for the first time in its fiscal year 2026, which ran from July 2025 to June 2026. A year earlier Microsoft had said Azure passed 75 billion dollars in fiscal 2025.

The two Microsoft numbers that do appear in dollars are broader than Azure. The Intelligent Cloud segment, which adds server software, GitHub, Nuance and enterprise services to Azure, had revenue of 39.3 billion dollars in the June quarter, up 32 percent. Microsoft Cloud, a still wider measure that also includes Microsoft 365 commercial cloud, LinkedIn and Dynamics, reached 59.3 billion dollars, up 27 percent. Neither is a like for like comparison with AWS, which is why Microsoft market share has to be estimated by analysts rather than read from the accounts.

One comparison does work well: the amount of new revenue each business added. Between Q2 2025 and Q2 2026, AWS added 11.4 billion dollars of quarterly revenue and Google Cloud added 11.1 billion dollars, while Microsoft Intelligent Cloud added about 9.5 billion dollars. For years AWS added the most new business in absolute terms simply because it was largest. In 2026 Google is matching it dollar for dollar, which is why its share is rising even though AWS has accelerated too. For a wider look at how cloud sits within each group, see our big tech revenue comparison.

Growth rates: Google Cloud leads, AWS speeds up, Azure holds above 40 percent

The growth race between the three providers has changed character in a year. In mid 2025 the order was clear and stable: Azure grew at about 39 percent, Google Cloud at about 32 percent and AWS at 17.5 percent, the slowest of the three. By mid 2026 every one of them was growing faster. Google Cloud grew 81.8 percent, Azure 43 percent and AWS 36.8 percent, based on reported figures for the April to June quarter.

The AWS acceleration is the most important shift for the market share picture. When AWS grew at under 20 percent while the market grew at 25 percent, it lost about a point of share every year. At 37 percent growth against a market growing at 43 percent, it is still losing ground but much more slowly. Amazon said during 2025 that capacity constraints, rather than a lack of demand, were holding AWS back, and the steep increase in its capital spending since then is now turning into revenue.

Everyone is accelerating: all three providers grew faster in Q2 2026 than a year earlier; Google Cloud went from 31.7 to 81.8 percent and AWS from 17.5 to 36.8 percent, its fastest growth in 18 quarters.

Growth percentages flatter smaller businesses, so read them alongside the dollar amounts: Oracle infrastructure, at 121 percent, added about 4 billion dollars of quarterly revenue, roughly a third of what AWS added at 37 percent.

Behind all of this is demand for AI computing. Synergy reports that services built specifically for generative AI grew 165 percent year on year in Q2 2026, and Oracle said in September 2026 that demand for its AI cloud training and inference services continues to grow faster than supply, a capacity constraint the other leaders have also described to investors. Much of that capacity runs on processors from Nvidia, whose data center business is covered in our Nvidia statistics, while the providers also deploy their own chips such as Trainium and Google TPUs alongside conventional servers built on the processors tracked in our x86 Intel and AMD market share data.

Cloud margins are rising, not falling, as spending climbs

A common concern about the AI boom is that rising investment will squeeze cloud profits. So far the reported numbers show the opposite. AWS earned operating income of 16.6 billion dollars in Q2 2026, a margin of 39.3 percent, up from 10.2 billion dollars and 32.9 percent a year earlier. In the first quarter of 2026 the margin was 37.7 percent, and for 2025 as a whole AWS earned 45.6 billion dollars on sales of 128.7 billion dollars, a margin of 35.4 percent.

Google Cloud improved faster. Its operating income rose from 2.8 billion dollars in Q2 2025 to 8.8 billion dollars in Q2 2026, lifting the margin from 20.7 to 35.6 percent. In mid 2024 its margin was close to 11 percent. Microsoft does not report a separate profit figure for Azure, but its Intelligent Cloud segment has long been one of its most profitable units.

Growth with higher margins: Google Cloud lifted its operating margin from 20.7 to 35.6 percent in a year, closing most of the gap to AWS, whose margin also rose to 39.3 percent.

The explanation is timing. Equipment is depreciated over several years, while revenue from new AI customers arrives as soon as capacity is switched on, so fast filling capacity lifts margins. If demand slowed after years of record investment, that depreciation would weigh on future profits, which is why investors watch capital spending as closely as revenue.

The 421 billion dollar investment behind the Big Three lead

The single biggest barrier to competing with the Big Three is the cost of building the infrastructure. In the twelve months to June 2026, Amazon spent 173.0 billion dollars on property and equipment, Alphabet 132.4 billion dollars and Microsoft 115.9 billion dollars, a combined 421.3 billion dollars. A year earlier Amazon had spent 107.7 billion dollars over the same twelve months, so its outlay rose by about 60 percent.

The quarterly figures are even more striking. In Q2 2026 Amazon spent 54.2 billion dollars, Alphabet 44.9 billion dollars and Microsoft 35.8 billion dollars, a total of 134.9 billion dollars in one quarter. That is almost as much as the entire worldwide cloud infrastructure market earned in revenue in the same three months (143.4 billion dollars). Not all of the money goes into cloud, since Amazon also builds warehouses and Alphabet and Microsoft run large consumer services on the same infrastructure, but data centers, servers and AI chips account for most of it.

421 billion dollars in a year: the three cloud leaders spent a combined 421.3 billion dollars on capital projects in the twelve months to June 2026, and in Q2 2026 alone their 134.9 billion dollars almost matched the whole quarterly cloud market.

The plans for the rest of 2026 point higher still. Alphabet said in February 2026 that it expected capital expenditure of 175 billion to 185 billion dollars for the year, roughly double the 91.4 billion dollars it spent in 2025. Amazon chief executive Andy Jassy told investors the same month that the company expected to invest about 200 billion dollars in 2026, after 131.8 billion dollars in 2025. Microsoft spent 115.9 billion dollars in its fiscal year to June 2026, up from about 65 billion dollars the year before.

Spending on this scale reinforces the concentration of the market. Only a handful of companies have the cash flow to invest more than 100 billion dollars a year, and the providers that are growing fastest outside the top three, Oracle and the neoclouds, rely heavily on long term contracts, debt and equity sales to fund their build outs. Oracle, for example, raised 20 billion dollars through a share sale program in its latest quarter and reported negative free cash flow of 5 billion dollars despite record operating cash flow. The market value that this investment supports is tracked in our ranking of the top companies by market capitalization, where all three cloud leaders rank near the top.

Oracle, Alibaba and the neoclouds: who is gaining outside the top three

Oracle is the fastest growing large provider. Its Oracle Cloud Infrastructure revenue reached 7.4 billion dollars in the three months to August 2026, up 121 percent, and total cloud revenue including applications was 11.6 billion dollars, up 62 percent. The company reported remaining performance obligations, contracted revenue not yet recognised, of 664 billion dollars, up 209 billion dollars in a year, and said it booked more than 30 billion dollars of new AI cloud contracts in the quarter. Synergy places Oracle at about 4 percent of the market, level with Alibaba in joint fourth place.

Alibaba remains the largest cloud provider in China and the fourth largest in the world, but it now competes mostly at home. In the quarter to June 2026 its new AI Cloud and Compute Services segment, which combines the former Cloud Intelligence Group with the T-Head chip unit, had revenue of 48.4 billion yuan (7.1 billion dollars), up 45 percent, and AI related product revenue grew at triple digit rates for the twelfth quarter in a row. Alibaba capital spending in the quarter rose 75 percent to 67.7 billion yuan. Synergy notes that Alibaba, like Salesforce, is growing but more slowly than the market as a whole, so its global share is slipping.

Smaller bases, faster growth: Oracle infrastructure revenue more than doubled to 7.4 billion dollars in its latest quarter, but AWS added more new quarterly revenue in a year (11.4 billion dollars) than Oracle infrastructure now earns in a quarter.

The neoclouds, which rent clusters of AI processors to model developers and enterprises under multi year contracts, are growing fastest of all, but their scale is still small: at about 5 percent of the market in Q1 2026, all of them together were about a third the size of Google alone. The total AI market they serve is sized in our AI market size report and our broader AI statistics.

The United States drives the acceleration, Asia grows fastest

The United States is by far the largest cloud market, larger than the whole Asia Pacific region according to Synergy, and in 2026 it has also become one of the fastest growing. US cloud infrastructure spending grew 49 percent in Q2 2026, faster than the worldwide average of 43 percent, after 37 percent in Q1 2026 and 30 percent in Q4 2025. The US share of global spending has risen for two quarters in a row, because most of the large AI training clusters are being built and rented there.

Measured in local currencies, the fastest growing national markets in Q2 2026 were India, Indonesia, Ireland, Thailand and Malaysia. In Europe the United Kingdom and Germany remain the largest markets, while Ireland, Norway, Denmark and Finland grew fastest. China is a separate market dominated by Alibaba, Huawei, Tencent, Baidu and the state telecom operators, where the American hyperscalers have only a small presence.

What to watch in the next cloud market share update

The next set of numbers will cover the third quarter of 2026. Amazon, Microsoft and Alphabet report their September quarter results in late October, and Synergy has published its quarterly market estimate within a few days of those reports in each recent quarter. Four questions will decide whether the pattern of the last year continues.

First, whether the market keeps accelerating. Growth has increased for eleven quarters in a row and reached 43 percent; a twelfth increase would take it to the highest level since the early years of the market. Second, whether AWS can close the growth gap. At 37 percent it is still behind the market, and Amazon plans to invest about 200 billion dollars in 2026 to add capacity. Third, whether Google can stay above 80 percent growth from a base now near 100 billion dollars a year. Fourth, how quickly Oracle turns its contract backlog into revenue: its guidance for the November quarter is cloud revenue growth of 64 to 70 percent in constant currency.

On current trends the order of the table is unlikely to change soon; the open question is how fast Google and Oracle keep closing the gap. This page will be updated with the Q3 2026 figures once Synergy and the companies have published them. For more company data across the sector, browse our software topic overview and the largest revenue sources of leading tech companies.

Cloud market share in eight numbers

Questions about cloud market share