Xebia and CAST Partner to Accelerate Application Modernization with Agentic AI 

Summary:

To modernize applications safely, enterprises first need a factual map of their application estate. Xebia and CAST provide that map with CAST’s software intelligence, then use Xebia Ace’s agentic engineering to execute the modernization.

GURUGRAM, India, Nov. 2, 2026 — Xebia, a global AI-first digital transformation and engineering partner, today announced a strategic partnership with CAST, a leader in software mapping and intelligence. The partnership gives enterprises a fact-based map of their application estate before they modernize it, then uses agentic AI to act on it.  

Enterprises are under pressure to modernize applications, migrate to the cloud, and adopt AI-driven operating models. Many stall because they lack clear visibility into the systems that run their business. Hidden dependencies, technical debt, fragmented documentation, and years of accumulated complexity make these projects costly, slow, and risky.  

CAST is now built into Xebia Ace. Ace uses CAST's analysis of an organization's application portfolio to plan, sequence, and execute modernization through agentic engineering. 

CAST analyzes complex software estates to show application architectures, dependencies, technical debt, and modernization complexity. Xebia Ace uses that intelligence to speed up delivery while preserving governance, traceability, and quality. Grounding AI-driven work in how systems are actually built helps teams evaluate options, prioritize investment, and avoid rework. 

Enterprise modernization often stalls because organizations don't have a reliable picture of the systems they're trying to transform. Combining CAST's software intelligence with Xebia Ace's agentic engineering moves clients beyond isolated AI coding productivity gains to modernization that is traceable, outcome-driven, and tied to measurable business value.

Devipad Tripathy

SVP and Global Head of Digital Engineering & Enterprise Transformation - Xebia

As enterprises adopt agentic AI and AI-assisted engineering, understanding how existing applications are structured and how they behave becomes essential. The partnership helps organizations connect modernization strategy with execution. 

Just like people, AI agents need a map before they can safely change a complex application. CAST builds that map deterministically from the code itself, showing how components, dependencies and data flows actually connect. By building it into Xebia Ace, Xebia gives its agents facts to work from instead of assumptions, so modernization moves faster with fewer surprises

Marc Zablit

EVP Business Development and Global Partnerships - CAST

Xebia Ace with CAST Technology is Available Now 

Xebia Ace is now available to enterprises globally, delivered by Xebia's digital engineering teams with CAST technology. The partnership expands Xebia's portfolio of AI-enabled engineering and modernization services.  

Learn More 

Download the whitepaper → Enterprise Application and Modernization with Agentic AI and Software Intelligence

Explore the Xebia and CAST partnership

About Xebia: 

Xebia is a global AI-first digital transformation and engineering partner. With over 25 years of experience and a team of 4,500+ professionals across 16 countries, Xebia specializes in artificial intelligence, data and cloud, intelligent automation, and digital products and platforms. With a strong focus on engineering excellence and a people-first culture, Xebia equips organizations to apply emerging technologies that accelerate business innovation and drive sustainable competitive advantage. Xebia leads with a responsible and human-centric approach to AI, ensuring organizations shape a better tomorrow for all. 
 

About CAST:

Businesses move faster using CAST to understand, improve, and transform their software. Through semantic analysis of source code, CAST generates insights, 3D maps, and call graphs for executives, technologists, and AI to navigate inside individual applications and across entire portfolios. This intelligence enables companies to steer, speed, and report on initiatives such as technical debt, modernization, and cloud. As the pioneer of the software intelligence field, CAST is trusted by the world’s leading companies and governments, their consultancies and cloud providers. See it all at castsoftware.com. 

Xebia Media Contact:
Maureen Elsberry
Global VP of Communications
maureen.elsberry@xebia.com