EY vs Workday PSA
Side-by-side comparison of AI visibility scores, market position, and capabilities
Big Four professional services partnership at $51.2B FY2024 revenue (+3.9%); CEO Janet Truncale launched EY.ai Agentic Platform with NVIDIA (150 agents, 80K professionals) competing with Deloitte and PwC for global audit and consulting.
About
EY (Ernst & Young) is a London-based global professional services partnership — one of the Big Four accounting and consulting firms — generating $51.2 billion in record annual revenue in fiscal year 2024 (+3.9%), with approximately 393,000 professionals operating across more than 700 offices in over 150 countries and territories. EY's roots trace to 1903 when Alwin C. Ernst and Theodore Ernst founded Ernst & Ernst in Cleveland, Ohio; the modern EY emerged from the historic 1989 merger of Ernst & Whinney and Arthur Young & Co. EY's integrated service model spans assurance (the highest-revenue segment among Big Four peers), consulting, strategy and transactions through EY-Parthenon (created via the 2014 acquisition of The Parthenon Group), and tax services. In July 2024, Janet Truncale became EY's Global Chair and CEO, the first woman to lead the firm. In 2025, EY launched the EY.ai Agentic Platform in partnership with NVIDIA, deploying 150 AI agents supporting 80,000 EY professionals across tax, risk, and finance domains to surpass 3 million tax compliance outcomes annually.
NASDAQ: WDAY | Workday $7.3B total revenue FY2024; PSA module unifies project delivery with HR and finance on one platform; enterprise-grade; targets professional services firms
About
Workday PSA is an enterprise project and resource management product built on the Workday platform, designed to help professional services firms manage the full delivery lifecycle — from project pursuit and staffing through billing and revenue recognition — in the same system that runs their HR, finance, and planning. Workday built PSA to eliminate the overhead of reconciling disconnected project management, time tracking, and financial reporting tools. Its core technology is native to Workday's unified data model, meaning project financials, resource costs, and workforce data are always synchronized.\n\nWorkday PSA covers project planning, resource capacity and skills-based staffing, time and expense capture, client billing, and revenue recognition under ASC 606 and IFRS 15. Because it shares a data layer with Workday HCM, project managers have real-time visibility into employee availability, cost rates, and utilization without manual data pulls. The product targets enterprises with complex, multi-geography service delivery operations: consulting firms, technology implementation partners, and services divisions of product companies.\n\nWorkday PSA competes with Certinia, Unit4, and Microsoft Dynamics 365 Project Operations. Its differentiator is native integration with Workday HCM and financials, eliminating reconciliation across multi-vendor stacks and providing a single source of truth for services performance. For enterprises already on Workday, PSA is a natural extension that reduces total cost of ownership.
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