EY Enterprise-Scale Agentic AI Operating System on Microsoft Fabric and Copilot Studio
Ernst & Young (EY) leveraged Microsoft Azure OpenAI, Microsoft Fabric, Microsoft Foundry, Microsoft 365 Copilot, and Copilot Studio to scale AI from internal experimentation to enterprise-wide deployment. The company embedded AI assistants and agentic AI workflows across tax, audit, consulting, and advisory workflows in 180+ countries to improve efficiency, speed, consistency, and trust. AI augmenting human judgment helps professionals synthesize large data, accelerate document review, and deliver higher-quality outputs at scale while maintaining responsible governance.
- Organization
- Ernst & Young
- Industry
- Professional Services
- Location
- United States
- Published
- April 2026
Reported outcomes
Strategic outcomes
Primary read
Use case focus
Showing 3 of 3
- 1Agent-based AI
- 2AI platform
- 3Workflow automation
- EY needed to scale AI integration from experimentation to enterprise execution across global professional services.
- They aimed to redesign audit and advisory workflows to enhance efficiency, insights, and trust without losing control or transparency.
- EY became client zero by internally deploying AI assistants powered by Azure OpenAI and expanded to globally integrated AI agents embedded in everyday workflows.
- Microsoft 365 Copilot helped bring AI into daily work for professionals, while Copilot Studio enabled design of AI agents for structured tasks across processes.
- Governance frameworks were implemented to ensure responsible, transparent AI usage that amplifies human judgment rather than replacing it.
- AI agents now operate at scale in over 180 countries, transforming professional services delivery.
- The deployment enabled faster, consistent, and trustable AI-augmented work processes across multiple service lines including tax, audit, consulting, and advisory.
- Professionals are empowered to deliver higher-quality advice and insights with greater confidence.
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