Deloitte's technology consulting division experienced the slowest sales growth among the firm's business units over the past year, despite significant investment in artificial intelligence (AI) services and client transformation efforts. The results, covering the 12 months to May 31, contributed to a moderation in Deloitte’s overall global revenue growth, according to figures released by the company.
The professional services firm reported record annual revenues of $74.5 billion, reflecting a 3.8 percent increase in constant currency terms compared to a 4.8 percent rise in the previous year. Growth was notably restrained by Deloitte’s two consulting segments. Advisory services related to strategy, risk, and transactions grew by 4.4 percent, a decline from 5.5 percent the prior year, while technology and transformation consulting increased 2.5 percent, down from 4.7 percent.
This slowdown unfolds amid growing uncertainty in the consulting sector regarding AI’s impact. While many consulting leaders have praised AI as a driver for new business opportunities, particularly in helping clients integrate the technology, some investors have grown cautious. Shares in publicly traded rivals such as Accenture have fallen sharply over the past two years amid fears that AI's implementation may be more challenging in the near term than anticipated. Additionally, concerns persist that AI might reduce the need for consulting services or depress pricing in the longer term.
Contrasting the consulting segments, Deloitte’s audit and tax businesses posted stronger revenue gains, both exceeding their growth rates from the previous year. The company did not disclose precise revenue figures for individual lines, providing only growth rates.
Deloitte also reported an increase in its global workforce, now approaching 500,000 employees worldwide, up from approximately 470,000 in May 2025. The firm has committed $3 billion through 2030 to modernize its operations and develop offerings aimed at assisting clients in transforming their businesses.
Joe Ucuzoglu, Deloitte’s global chief executive, emphasized the company’s role amid rapid technological change and market disruption, stating that organizations continue to rely on Deloitte to navigate significant industry transformations.
Regionally, the Asia Pacific market emerged as Deloitte’s fastest-growing area when adjusting for currency fluctuations. The reported revenues represent the combined income of Deloitte’s member firms, each owned and operated locally by partners who retain profits within their respective countries.
As with its Big Four peers, Deloitte does not disclose global profit figures. The firm’s performance highlights both the opportunities and challenges faced by large professional services providers as they adapt to evolving technological landscapes and client demands.