EY global revenue hits $57bn as AI demand fuels Big Four giant’s growth

The global revenue of EY, the Big Four giant, has reached $57 billion (£43 billion), marking a nearly 5% increase from the previous financial year. The strategy arm spearheaded the firm's overall growth across all services, with a 7% rise. Tax services grew by 6%, consulting by over 4%, and assurance by 3%. Notably, sales from AI services surged over the year, soaring by nearly 50% due to heightened client demand.

EY invested $448 million over 2026 in training and development, with a strong emphasis on AI. Janet Truncale, EY's global chair and CEO, attributed the growth to the increasing focus on technology-driven solutions that incorporate industry expertise, trusted relationships, and human judgment. She highlighted that the fiscal year's results showcased the combined strengths of EY teams and alliance partners in accelerating value creation and turning disruption into sustainable growth.

Earlier this year, EY had to retract a study on loyalty rewards programs following an investigation that found it contained numerous AI-generated hallucinations and fabricated footnotes. Meanwhile, Deloitte, another major competitor, reported a rise in its global revenue to $74.5 billion (£56.37 billion) earlier this year, despite a decline in its technology and transformation division.

The results from the UK showed PwC's UK revenue expanding to £4.365 billion, a 2% increase compared to the previous year, while Deloitte UK revenue for the year ending May 31, 2026, was up 2% to £5.81 billion, with growth across all businesses.