The data center-as-a-service market is expanding rapidly as businesses migrate from owned infrastructure to cloud-based solutions. The global market, valued at $159.6 billion（約26兆円） in 2025, is projected to reach $1,400.6 billion（約220兆円） by 2035, driven by AI workload demand, digital transformation, and edge computing integration across major industries.
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The global data center-as-a-service (DCaaS) market was valued at $159.6 billion（約26兆円） in 2025 and is projected to reach $1,400.6 billion（約220兆円） by 2035, growing at a compound annual rate of 24.24%. The U.S. market alone is expected to expand from $48.7 billion（約7.8兆円） in 2025 to $427 billion（約68兆円） by 2035.
Why it matters
Companies across finance, healthcare, IT, telecommunications, retail, manufacturing, and government are replacing on-site infrastructure with cloud-based solutions to reduce upfront costs and gain operational flexibility. The shift is being driven by digital transformation, AI adoption, and investments from hyperscalers (large cloud providers) like AWS, Microsoft Azure, and Google Cloud, particularly in high-performance AI workloads.
What to watch
Servers dominated the market with 58% revenue share in 2025, but the storage segment is expected to record the fastest growth rate, fueled by increasing volumes of AI data, video, and IoT outputs. Large enterprises held the largest market share in 2025, while the SME segment is projected to grow fastest.
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