Big Four firm EY has reported global revenues of $57bn (£43bn), marking an increase of nearly 5 per cent compared to the previous financial year. This growth was significantly influenced by a surge in demand for AI services, which saw sales rise by almost 50 per cent.
EY-Parthenon's strategy arm was the strongest performer, achieving a 7 per cent increase and leading overall growth across the firm's service lines. Tax services grew by 6 per cent, consulting by over 4 per cent, and assurance by 3 per cent.
The firm invested $448bn in 2026 in training and development, with a particular focus on AI. Janet Truncale, EY global chair and chief executive, stated that the growth in AI-related services reflects a shift towards combining technology with industry knowledge and human judgement.
Competitor Deloitte reported global revenue of $74.5bn (£56.37bn) last month. In the UK, PwC's revenue increased by two per cent to £4.365bn, while Deloitte UK's revenue for the year ended 31 May 2026 rose by 2 per cent to £5.81bn.