MicrosoftScaled productionEvidence: Medium55/100

EY Enterprise-Scale Agentic AI Operating System on Microsoft Fabric and Copilot Studio

Use case typeWorkflow automationUpdated Jun 13, 2026

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
Why do we believe this deployment?Customer identity, provider attribution, maturity, and source checks
Customer
Ernst & Young
Provider
Microsoft
Maturity
Scaled Production

AI augmenting human judgment helps professionals synthesize large data, accelerate document review, and deliver higher-quality outputs at scale while maintaining responsible governance

Customer identity supportedSource describes one deploymentMaturity supported

Primary read

Use case focus

Showing 3 of 3

  • 1Agent-based AI
  • 2AI platform
  • 3Workflow automation
  • 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.
Technologies
Microsoft Azure OpenAIMicrosoft FabricMicrosoft FoundryMicrosoft 365 CopilotCopilot Studio
Sources & evidence1
Evidence: Medium55/100Evidence strength
  • Customer explicitly identified
  • Deployment status explicitly supported
  • Primary source available
  • Technical implementation details available
Type: Customer StoryPublished: Apr 21, 2026Publisher: Microsoft Customer StoriesEvidence: PrimaryConfidence: High
Primary source

AI-generated summary. Verify important details with the linked sources before relying on this case.

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