The global Mainframe Modernization Market was valued at USD 6.26 billion in 2024 and is expected to reach USD 12.77 billion by 2032, with a CAGR of 9.39% from 2025-2032. Businesses are modernizing mainframes to meet the need for scalable and cost-effective IT infrastructure. Cloud platforms offer lower operating costs, increased agility, and quicker deployment. Upgrading mainframes is a strategic priority for businesses to ensure scalability and real-time data processing.

Large enterprises dominated the market in 2024, while small and medium-sized enterprises (SMEs) are the fastest-growing segment, expected to grow at a CAGR of 11.50% from 2025-2032. The software segment held a 59% market share in 2024, with services projected to be the fastest-growing segment at a CAGR of 10.64%.

In terms of verticals, the banking, financial services, and insurance (BFSI) sector led the market in 2024, while healthcare is expected to be the fastest-growing segment at a CAGR of 12.09% from 2025-2032. Rehosting was the dominant modernization type in 2024, with rearchitecting projected to be the fastest-growing segment at a CAGR of 11.15%.

North America dominated the market in 2024, while Asia Pacific is projected to grow the fastest, with an 11.27% CAGR from 2025-2032. Recent developments include IBM unveiling the IBM z17 and AWS publishing updated guidance on replatforming mainframe applications.

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