HFS Horizons: Legacy Application Modernization Services, 2025

Legacy application modernization is the strategic transformation of systems that constrain business agility, scalability, and innovation. It often involves re-architecting legacy systems into modular, scalable, and adaptive solutions using cloud-native technologies, APIs, automation, microservices, and DevOps practices.

The “HFS Horizons: Legacy application modernization services, 2025″ report is designed to assess vendor capabilities, innovation, and value potential across the value chain based on a range of dimensions to understand the why, what, how, and so what of their service offerings across three distinct horizons:

• Horizon 1: The ability to drive digitized processes to improve business outcomes such as cost reduction, speed, and efficiency across the application modernization value chain elements. The focus is on lift‑and‑shift, API wrappers, and basic DevOps/GenAI. Success is measured by TCO reduction, SLA adherence, and compliance.
• Horizon 2: Horizon 1 + enablement of the OneOffice model of end-to-end organizational alignment across the front, middle, and back offices to drive an unmatched stakeholder experience. The emphasis is on platform-led and IP-led delivery with agentic SDLC. Faster releases, resilient ops, and regulatory confidence define success.
• Horizon 3: Horizon 2 + the ability to drive OneEcosystem impact via collaboration across multiple organizations, with common objectives around driving completely new sources of value. Players here deliver AI-native, event-driven products with ecosystem co‑creation. The ability to drive new revenue, CX/PX gains, and continuous modernization are measures of success.

The report evaluates the capabilities of 32 service providers, including global system integrators, domain-specific app modernization providers, and start-ups, across the HFS legacy application modernization services value chain.

It highlights the value-based positioning of each participant across the three distinct Horizons. It also includes detailed profiles of each service provider, outlining their provider facts, strengths, and development opportunities.

The report is global in scope and offers critical insights for enterprises of all shapes and sizes, service providers offering modernization services, and ecosystem partners navigating the rapidly evolving threat landscape.

HFS Horizons: Legacy Application Modernization Services, 2025

Note: All service providers within a Horizon are listed alphabetically
Source: HFS Research, 2025

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