EY, KPMG, and Deloitte Lead India's Corporate Audit Market in FY26

The Indian corporate audit landscape remains heavily concentrated among a few elite institutional players, with the Big Four dominating both company volume and market value. Recent data from Prime Infobase reveals a market where a handful of firms oversee the vast majority of listed entities, reflecting a high level of consolidation in the financial services sector.

Big Four Dominate by Audit Volume

In the financial year 2025-26 (FY26), the Big Four firms secured the top three positions based on the total number of listed companies audited. EY Group maintained its market leadership, auditing 187 companies, a 3% increase from 182 in FY25. KPMG Group showed the most significant momentum among the leaders, recording an 11% volume growth to audit 157 companies. Deloitte Group held the third spot with 131 companies, a slight decline from 137 in the previous fiscal year.

Other notable players in the top 10 include GT Group (125), BDO Group (97), and PWC Group (82). While the giants lead in scale, CNK & Associates LLP emerged as the fastest-growing player in the top tier, recording a massive 41% jump to audit 24 companies.

Market Capitalisation: The Real Scale of Influence

While volume measures reach, market capitalisation reveals the actual financial weight these auditors carry. KPMG Group emerged as the leader in this metric, overseeing companies that constitute 15.67% (₹71,14,060 crore) of the total market capitalisation of audited firms. EY Group followed closely with a 15.35% share (₹69,73,130 crore), while Deloitte Group captured 13.94% (₹63,31,111 crore).

The concentration of power is striking: the Big Four alone account for 51% of the entire market capitalisation of these listed entities. When including mid-tier firms, the "Big Six" institutional groups command a collective 61% of the market value, underscoring the immense responsibility these firms hold in maintaining investor confidence.

The audit sector displays extreme disparity in market distribution. Out of the total firms surveyed, only 25 audit firms managed portfolios of 10 or more listed companies, whereas 649 firms audited only a single listed company.

The report also highlighted several shifts in auditor stability and mandates:

  • Joint Audits: The trend of joint audits saw a slight contraction, dropping to 164 companies (7% of the 2,436 listed companies) compared to 170 companies (8%) in FY25.
  • Cessations and Resignations: Mid-term cessations (resignations or terminations) rose to 71 instances across 68 companies, up from 58 instances in FY25. Additionally, 22 auditors resigned after completing their FY26 assignments despite having years left in their tenure.
  • Upcoming Rotations: Looking ahead to FY27, a significant turnover is expected, with 1,030 auditors across 997 companies scheduled for tenure expiration, including 385 auditors who will complete the mandatory 10-year term.

Key Takeaways

  • Big Four Hegemony: EY, KPMG, and Deloitte lead in volume, while KPMG leads in the market capitalisation of audited companies, controlling over 15% of the total value each.
  • Extreme Concentration: The Big Four account for 51% of the market capitalisation of audited listed entities, highlighting a massive gap between top-tier and mid-tier firms.
  • Impending Turnover: A significant wave of auditor changes is expected in FY27, with nearly 1,000 auditor tenures scheduled to expire.