EY and Microsoft just announced a joint investment exceeding $1 billion to scale AI adoption across enterprise operations. The five-year commitment, unveiled in London on May 21, is designed to bridge the gap between companies experimenting with AI and companies actually deploying it at scale.

The partnership will embed EY’s industry consultants alongside Microsoft engineers to build secure, sector-specific AI tools.

What the partnership actually covers

The collaboration targets three sectors where AI integration demand is highest: financial services, healthcare, and industrials. Within those industries, the focus lands on core business functions that touch every large organization, including finance, tax, human resources, and supply chain management.

This isn’t a brand-new relationship. EY previously gained early access to Microsoft Azure OpenAI capabilities, and the firm has already deployed over 100 AI applications internally. The new commitment represents a substantial escalation of that existing alliance.

EY CEO Janet Truncale framed the challenge not as a technology problem but as a people problem.

“Most business leaders expect AI to reshape work, but the challenge is preparing people to use it.”

To address this, EY and Microsoft are continuing the EY Microsoft AI Skills Passport program, which focuses on reskilling and upskilling workers to operate alongside AI systems.

EY’s broader AI strategy

This billion-dollar commitment sits within a larger pattern of AI investment from EY. The firm launched its EY.ai platform back in 2023, backed by $1.4 billion in investments. That platform serves as the foundation for EY’s AI-driven consulting services, providing tools and frameworks that its consultants use when advising clients on digital transformation.