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Mainframe Operating Systems Market Size Outlook: How Quickly Will Revenue Expand Through 2030?
The mainframe operating systems market has experienced consistent growth in recent years. This market is forecasted to increase from $1.83 billion in 2025 to $1.88 billion in 2026, at a compound annual growth rate (CAGR) of 2.9%. The historical expansion can be attributed to the dependency on legacy enterprise computing, the rise of large-scale transaction processing systems, the broadening of banking and financial core systems, the development of centralized IT infrastructure models, and the increasing demand for highly reliable systems.
The mainframe operating systems market size is projected to experience consistent expansion over the upcoming years. Its value is set to reach $2.13 billion by 2030, achieving this with a compound annual growth rate (CAGR) of 3.1%. This anticipated growth during the forecast period is fueled by several factors, including the move towards hybrid cloud mainframe environments, the escalating demand for real-time transaction processing, more stringent cybersecurity and regulatory compliance mandates, the modernization of legacy applications through APIs, and the push for AI-driven workload automation and optimization. Key trends identified for this period encompass AI-powered workload optimization within mainframes, broadening hybrid cloud mainframe integration, the implementation of zero-downtime high-availability architectures, continuous mainframe modernization paired with API enablement, and sophisticated cybersecurity and identity management solutions specifically for mainframes.
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Mainframe Operating Systems Market Growth Factors Behind Sustained Expansion
An increasing number of financial transactions is anticipated to boost the expansion of the mainframe operating systems market in the future. Financial transactions encompass the exchange or movement of funds between individuals or entities for products, services, or financial commitments, which are logged and processed via banking or payment platforms. The surge in financial transactions stems from the swift growth of digital payment infrastructure, leading to more frequent and simpler cashless dealings for companies and customers worldwide. Mainframe operating systems facilitate financial transactions by guaranteeing dependable and continuous handling of extensive payment and banking activities, even during times of high demand. For example, in January 2026, Open Banking Limited, a UK-based non-profit entity, reported that payment activity experienced sustained rapid growth, hitting 351 million transactions in 2025, marking a 57% year-over-year increase. Consequently, the expanding quantity of financial transactions is propelling the development of the mainframe operating systems market.
Mainframe Operating Systems Market Segment Trends And Revenue Contributors
The mainframe operating systems market covered in this report is segmented –
1) By Component: Software, Services
2) By Deployment Type: On-Premises, Cloud-Based
3) By Organization Size: Large Enterprises, Small And Medium Enterprises
4) By End User: Banking Financial Services And Insurance, Government And Defense, Information Technology And Telecom, Healthcare, Retail, Manufacturing
Subsegments:
1) By Software: Operating Systems For Enterprise, Operating Systems For Cloud Environments, Open Source Operating Systems, Proprietary Operating Systems, Real-Time Operating Systems
2) By Services: IT Strategy Consulting, Cloud Consulting Services, System Integration Services, Deployment And Implementation Services, Technical Support Services, Remote Managed Services, Onsite Managed Services, User Training Programs, Certification And Education Services
Mainframe Operating Systems Market Industry Trends Fueling Future Revenue Growth
Leading companies active in the mainframe operating systems market are concentrating on creating sophisticated solutions, such as AI mainframes. These initiatives aim to deliver robust data security and reliability while executing AI workloads on a large scale, which is essential for critical enterprise applications. An AI mainframe is defined as a high-performance mainframe system specifically designed to inherently run and accelerate artificial intelligence workloads concurrently with conventional enterprise computing tasks. For instance, in April 2025, International Business Machines Corporation, a US-based technology and consulting company, unveiled the IBM z17 AI mainframe. Building upon the z16 platform, the z17 introduces an enhanced architecture intended to boost AI inference performance, support numerous AI models, and enable secure real-time data processing. Its core functionality is powered by the Telum II processor, which integrates a second-generation on-chip AI accelerator to improve computational efficiency. IBM reports that the system can manage over 450 billion AI inferences per day, representing a 50% improvement, supporting applications such as fraud detection, credit risk assessment, medical imaging analysis, and retail loss prevention.
Mainframe Operating Systems Market Key Players Shaping Industry Direction
Major companies operating in the mainframe operating systems market are Dell Technologies Inc.; Hitachi Ltd.; Accenture plc; International Business Machines Corporation; Oracle Corporation; Broadcom Inc.; Hewlett Packard Enterprise Company; Tata Consultancy Services Limited; Fujitsu Limited; NTT DATA Group Corporation; Capgemini SE; Cognizant Technology Solutions Corporation; Infosys Limited; Kyndryl Holdings Inc.; DXC Technology Company; HCL Technologies Limited; Wipro Limited; CGI Inc.; Atos SE; Unisys Corporation; BMC Software Inc.; Software AG; Rocket Software Inc.
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Mainframe Operating Systems Market Regional Analysis: Which Region Leads By Revenue?
North America was the largest region in the mainframe operating systems market in 2025. Asia-Pacific is expected to be the fastest-growing region in the forecast period. The regions covered in the mainframe operating systems market report are Asia-Pacific, South East Asia, Western Europe, Eastern Europe, North America, South America, Middle East, Africa.
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Wasay has over a decade of experience in market research, data modelling, and analytics, with prior experience at GlobalData and Decision Tree Consulting Services. At The Business Research Company , he leads research operations across syndicated studies, customized consulting engagements, and the Global Market Model platform. His professional experience includes supporting organizations such as Boston Consulting Group, KPMG, and Ernst & Young. Wasay holds a degree in Electronics and Communications Engineering, postgraduate management qualifications from International Management Institute Belgium and Indian School of Business and Entrepreneurship, and completed the Integrated Program in Business Analytics from Indian Institute of Management Indore.
