HERNDON, VA — Karsun Solutions, the enterprise modernization experts, today announced its recognition in the 2026 Information Services Group (ISG) Provider Lens® Mainframes Services and Solutions report. The firm was identified as a Contender in the U.S. Public Sector Application Modernization Services quadrant and a Product Challenger in the Global Mainframe Application Modernization Software quadrant.

As public sector agencies face the dual challenges of an aging workforce and the expiration of stimulus funding, Karsun has established itself as a strategic partner capable of bridging high-end federal engineering to state and local government engagement. ISG’s research highlights Karsun’s deep domain expertise in modernizing mission-critical, complex government systems that require strict compliance and end-to-end traceability.

ReDuX: The Capability Driver for AI-Native Modernization 

Central to Karsun’s recognition is ReDuX®, its AI-native modernization platform. ReDuX leverages agentic, multimodal AI to automate critical modernization tasks, including:

  • Blueprinting and Requirements Extraction: Documenting black box legacy systems to understand complex, undocumented applications.
  • Code Conversion and Test Automation: Accelerating throughput while reducing the risks associated with manual refactoring.
  • Human-in-the-Loop Governance: Ensuring auditability and verification, which is essential for regulated public sector environments.

Using ReDuX Karsun claims teams deliver four times faster with two times less rework. It recently released a pair of mainframe modernization case studies. These demonstrated ReDuX’s traceability and explainability features and a modernization engagement that reimagined document workflows for a legacy certification system. Karsun shares how ReDuX works at GoReDuX.ai/how-it-works.

Delivery Discipline Plus Public Sector Expertise

Karsun’s public sector expertise is boosted by its delivery discipline. Its work is underpinned by its CMMI Level 5 appraisal and commitment to quality, enabling predictable, measurable outcomes across complex legacy landscapes. This high level of compliance allows Karsun to provide enterprise-grade security to state and local agencies, meeting the same rigorous standards required of federal agencies.

Karsun brings this validated public sector experience to rigorous execution of modernization initiatives for commercial enterprises. Backed by the Karsun Innovation Center, its experts deliver modern software development, cloud, data and AI solutions. Learn more about Karsun’s professional services at karsun-llc.com/solutions/.

About Karsun Solutions

Karsun Solutions modernizes legacy systems enabling government agencies and enterprise organizations to elevate mission capability. IT solutions from Karsun are tailored to meet mission-driven organizations’ unique needs and optimize operations. These solutions adapt and stay relevant to current trends while using secure, digital architecture built to last. It is a proven modernization partner whose expertise ensures every next opportunity is within reach. Learn more at Karsun-LLC.com.

About ReDuX

The ReDuX AI-powered platform expedites the modernization of mainframe and other legacy system applications. Key tools in the platform include its blueprinting agents, which provide deep insights into system structure and behavior, and its transformation agents, which use the outputs from the blueprinting agents to generate code and facilitate incremental migration. These agents also bring enhanced security and privacy, offering project-specific usability by interfacing with various systems, overcome hallucinations noted in large language models (LLMs), and provide proven prompt templates to save developers time and effort. Get started at GoReDuX.ai.

Karsun Solutions Media Contact

marketing@karsun-llc.com

About ISG Provider Lens® 2026 Mainframe Services and Solutions Study

The ISG Provider Lens® 2026 Mainframes Services and Solutions study analyzes the relevant software vendors/service providers in the U.S. PS, Global markets, based on a multi-phased research and analysis process, and positions these providers based on the ISG Research methodology. Learn more at