Rillet & EY Alliance: AI-Native Finance Transformation & Controls

EY is one of the most deliberate organizations in the world. They don’t add technology partners often. They advise the finance leaders of the largest companies on the planet, and their diligence process is stringent. Internal champions have to build the case, legal and risk teams have a seat at the table, and decisions are made carefully. So, when they do choose a partner, it reflects a professional judgment call made by people whose credibility is on the line. 

Said simply, when EY chooses a platform to build a practice around, it’s a signal.

That process exists because their clients depend on it. 

Knowing that, we're especially honored to share more about Rillet’s alliance with EY.

The alliance brings together EY US’s finance transformation, technology consulting, risk and controls, and operating model capabilities with Rillet's AI-native, general-ledger-first finance platform. Together, EY and Rillet support organizations that have outgrown mid-market ERPs and are ready for a scalable finance operating model with strong controls and audit readiness from day one.

Why now?

The ERP market is at an inflection point. Companies that have outgrown mid-market systems are facing a choice that did not exist five years ago: stay on legacy infrastructure that was never designed for AI, or move to a platform built from the ground up for the way finance teams actually work today. 

EY has spent decades helping organizations navigate exactly this kind of transition. What's changed is the destination.

The finance functions that EY’s clients are building today need to operate continuously, surface insight in real time, and hold up under audit-grade scrutiny—as a byproduct of how work gets done, not as a month-end sprint.

That is the standard EY's clients are beginning to demand, and the standard Rillet was built to meet.

Controls built in

The reason this alliance works is architecture—how the platform is built at its foundation.

Rillet's architecture is real-time and AI-native by design. The GL is always current, and AI agents propose changes for human approval rather than acting autonomously, so the audit trail is aligned with how work gets done. Controls are continuous because the books are continuous. SOX readiness, segregation of duties, and reconciliation evidence are part of the platform's foundation, available from the first close.

Traditional ERPs log who clicked what. Rillet logs every AI action with full context: model version, inputs, reasoning, and human review outcome. That’s a fundamentally different control output, one that auditors can actually test. And, because controls run at transaction time rather than compressed into a month-end sprint, risk surfaces within hours instead of accumulating over thirty days.

EY's risk and controls practice plugs into that architecture directly. The team can design a control framework around what the platform actively enables: live reconciliation evidence, automated segregation enforcement, and audit-ready records by default. The result is a finance function that's faster and more controlled at the same time.

Who this is for

The companies this is built for are multi-entity and global, often Series C through public, with real complexity across intercompany accounting, multi-currency consolidation, ASC 606 revenue recognition, and audit or IPO timelines that don't wait.

Finance leaders in this group are looking for three things at once: a platform that becomes a strategic asset rather than a constraint, controls that meet enterprise expectations from day one, and a transformation that delivers value in weeks (not after a 12-month-long implementation). This alliance is designed to deliver on all three.

What changes

With the EY-Rillet Alliance, a finance team can be live in weeks, with controls and AI working from the first close. Time and energy that used to go into close cycles and audit prep go into forward-looking work: planning, strategy, and partnering with the business.

Nic Kopp, Rillet's CEO and co-founder:

"Finance transformation has long promised speed and insight, and the EY-Rillet Alliance is how we deliver both, with controls fully integrated. When AI is baked into the accounting logic from the ground up, controls keep pace and become stronger, more continuous, and more defensible under audit."

The alliance is live now. For the full press release, see EY's press release here.