The ten companies on this page carry about US$12.2 trillion in combined market value and roughly US$1.78 trillion in trailing revenue. The market they sit on top of was worth about US$419 billion in 2025 and grew at more than 30% annualised into 2026, and the three largest providers — Microsoft, Amazon Web Services and Google Cloud — hold more than 65% of that infrastructure spend. No earlier page in this series starts from a pool this concentrated: every entrant already owns the substrate its competitors have to rent.
We rank them on five weighted dimensions. Global revenue and market share carry 30%, because scale determines who can fund gigawatt-scale data centres and custom silicon. Category revenue purity carries 25%: hardware manufacturing and first-party e-commerce are stripped out, so a company is scored on the software and cloud revenue it actually books. Leadership in the specific segment — IaaS, PaaS, ERP, CRM, ITSM or creative software — carries 20%. Enterprise and government stickiness carries 15%, measured through remaining performance obligations, Fortune 500 penetration and net revenue retention. Self-operated physical infrastructure carries the final 10%: data centres, custom chips, subsea cable and delivery footprint. The weighted total becomes a Composite Score from 0 to 100.
The spread on this page runs from 98.8 for Microsoft to 83.5 for Huawei Cloud, and the gap is not reach but product economics. Microsoft turned a US$281.7 billion top line into US$168.9 billion of commercial cloud revenue, with Azure alone passing US$75 billion and growing 34%. Amazon's advantage is the widest footprint — 34 regions and 108 availability zones — plus the deepest share of workloads that never leave the cloud. Google Cloud runs 40 regions and 121 zones and rents out TPU capacity that rivals cannot buy elsewhere. Alibaba Cloud operates 30 regions and 89 zones and has open-sourced the Qwen model family, which gives it distribution inside developers' stacks. Huawei Cloud is the only entrant that also manufactures the silicon, servers and operating system underneath its own platform.
Every figure comes from audited annual reports and the latest quarterly filings as of October 2026. Huawei is the only private company on this page: its revenue is taken from its published annual report and its market value is excluded from the aggregate. Scores are recalculated when a new fiscal year lands, so a company can move two or three places between editions without any change in strategy — the market it is measured against moves too.