Japan Public IT Cloud Services Forecast, 2025–2029

This IDC study summarizes the qualitative and quantitative analysis of the Japan public cloud services market based on information collected by the end of January 2025.Public cloud services have become widespread in the Japan market, and their uses are expanding from improving IT/operational efficiency to realizing digital business. In this context, generative AI (GenAI) has emerged and is accelerating this trend. In addition, almost all vendors are focusing on developing and providing products and services related to GenAI and expanding the ecosystem, which not only intensifies competition among vendors but also complicates collaboration. "Vendors should support user companies in transforming their business operations while also strengthening their approach to early adopters and revitalizing communities in order to demonstrate competitive advantage in the era of AI Everywhere," says Satoshi Matsumoto, research director, Software and Services, IDC Japan.This is the English translation of the Japanese document IDC #JPJ52152425.


IDC Market Forecast Figure

Executive Summary

Advice for Technology Suppliers

Market Forecast

Japan Public Cloud Services Revenue by Service Segment

Japan SaaS Revenue by Service Segment (Middle Category)

Japan PaaS Revenue by Service Segment (Middle Category)

Japan IaaS Revenue by Service Segment (Middle Category)

Market Context

Drivers and Inhibitors

Drivers

Advances in Digital Business

GenAI Evolution

Increase in Unit Price of Products/Services

Inhibitors

Digital Business Stagnation

Human Resources Shortage

Significant Market Developments

GenAI Continues to Evolve, from AI Assistants to AI Agents

Modernization in Full Swing

Changes from Prior Forecast

Market Definition

Methodology

Exchange Rate

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