Deloitte announced Sept. 30 that its global revenue was $70.5 billion for the 2025 financial year that ended May 31, a 4.8% increase in local currency terms and 4.9% increase in U.S. dollar terms from its previous year’s haul of $67.2 billion.
Deloitte is the largest accounting firm in the world by revenue, followed by PwC, EY, and KPMG. PwC and EY will release their 2025 revenue results soon, while KPMG usually makes its announcement in December.
“Clients around the world are placing their trust in Deloitte to navigate an unprecedented level of complexity and change,” Deloitte Global CEO Joe Ucuzoglu said in a statement. “By integrating our unrivaled depth of expertise across key business domains with our modern engineering capabilities and outcome orientation, Deloitte is uniquely positioned to help businesses, governments, and markets capture the full potential of AI.”
The Big Four accounting firm has allocated more than $3 billion of investments in generative AI through fiscal year 2030 “to transform our delivery and operations and launch new innovative products and offerings,” it said in a media release.
The media release goes on to state:
With Agentic AI and multiagent AI systems, Deloitte is helping clients build AI agents on various software platforms across our network of ecosystems and alliances. Leveraging our specialist knowledge in business and workforce transformation, we help clients integrate Agentic AI to elevate human potential, enhance the work experience, and build agile, resilient teams. Through the newly launched Deloitte Global Agentic Network, clients now have access to a connected ecosystem of Agentic offerings supported by our strategic alliances and technology relationships to help augment and automate their operations. ZoraAI by Deloitte is our first Agentic AI product business, building AI agents that can execute human tasks autonomously and intelligently. ZoraAI, powered by NVIDIA NVAIE, marks a milestone in multi-agent systems with the planned integration into leading enterprise platforms, designed to help empower clients to build intelligent digital workforces using Agentic AI.
The growing relevance of sovereign AI is leading to increased client demand for scalable, secure, and efficient AI infrastructure solutions. Deloitte’s Silicon2Service offering aims to provide end-to-end strategy, design, deployment, optimization, and management of sovereign AI and AI factory capabilities for clients. By aligning infrastructure innovation with enterprise outcomes, we can help clients accelerate timely and impactful AI deployment at scale with appropriate ethics and governance, underpinned by our Trustworthy AI framework.
Among regions Deloitte serves, the Americas grew the fastest with revenue up 7.1% in local currency terms compared to the previous year, followed by Asia Pacific at 4.9%.
Among Deloitte’s core service lines, consulting services—comprising Strategy, Risk & Transactions and Technology & Transformation—saw its revenue grow by 5.5% and 4.7%, respectively, in local currency. Tax and legal services grew by 5.4%, followed by audit and assurance services with 3.8% revenue growth.
The firm now employs more than 470,000 people worldwide.
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