EY US has formed an alliance with AI-native ERP and accounting platform provider Rillet to integrate finance transformation, automation, and risk management into a single operating model.
Announced on April 29, the partnership combines EY’s finance transformation, technology consulting, and risk and controls capabilities with Rillet’s general-ledger-first platform, with the stated goal of embedding controls directly into finance workflows rather than layering them on after implementation.
Controls Move into Core of Finance Transformation
The alliance targets a longstanding gap in finance modernization.
Historically, organizations have treated process automation and controls as separate workstreams, building faster close cycles and reporting capabilities first, then addressing audit readiness and compliance requirements later. EY and Rillet are positioning their approach differently, integrating controls into the design of core processes such as journal entries, reconciliations, revenue recognition, and close management.
“Risk management and controls aren’t a separate workstream: they are woven into the transformation from the start,” said Michael Flynn, EY-Rillet Alliance Leader.
Rillet’s platform is designed to embed accounting logic and automation directly into these workflows, enabling more continuous monitoring and control as transactions are processed.
AI-Native Architecture Targets Finance Modernization
The alliance reportedly is aimed at organizations that have outgrown mid-market ERP systems and are seeking more scalable finance operating models.
Rather than positioning transformation as a full ERP replacement, EY and Rillet emphasize accelerating modernization while improving audit readiness and operational control. The approach combines EY’s transformation and operating model design capabilities with Rillet’s AI-native platform to support finance functions facing increasing demands for speed, insight, and compliance.
Nic Kopp, CEO and co-founder of Rillet, said the goal is to address a persistent challenge in finance transformation: aligning automation with control requirements so audit readiness improves alongside operational efficiency.
What This Means for ERP Insiders
Controls are moving from a compliance layer to a design requirement. The alliance reflects a shift in how finance systems are being built, with controls embedded directly into workflows rather than added after deployment. For CFOs and finance transformation leaders, this changes how modernization programs are scoped and sequenced.
Big Four alliances are shaping the next generation of finance platforms. EY’s formal partnership with Rillet signals where advisory and delivery capabilities are being built. Enterprise architects and finance leaders should expect these alliances to influence platform selection, particularly in transformation programs led by consulting firms.
Continuous, system-driven controls will change audit expectations. Embedding controls into AI-driven workflows introduces new questions about traceability and validation. Audit teams, controllers, and risk leaders will need to evaluate not just whether controls exist, but how system-generated decisions are governed and reviewed over time.
