Overview
Deloitte is a global network of member firms providing audit, tax, legal, risk and consulting services. Its consulting business is organised into Strategy, Risk & Transactions and Technology & Transformation, the latter covering enterprise platforms, cloud, data and cyber work. For the fiscal year ending 31 May 2026 the network reported aggregate global revenue of US$74.5bn, 5.7% higher in US dollars than a year earlier, and a workforce of nearly 500,000.[2] The revenue figure covers all service lines, so it overstates the size of the consulting practice relative to pure-play firms. Technology & Transformation revenue grew 2.5% in local currency in FY2026, the slowest of the consulting lines named in the release.[2] Deloitte’s audit relationships restrict what consulting work it can sell to audit clients under independence rules, which affects some buyers.
Deloitte strengths and limitations
Strengths
- Very broad service range across strategy, technology, risk and tax
- Presence in more than 150 countries and territories
- Combines technology delivery with risk, tax, finance and regulatory expertise under one network
- Very large bench across enterprise platforms and industries
Limitations
- Network revenue includes audit and tax, so consulting scale is not disclosed in dollars
- Technology & Transformation grew only 2.5% in local currency in FY2026
- Auditor-independence rules can restrict consulting work for audit clients
- Auditor-independence rules limit consulting work for its audit clients
Appears in
- Best Digital Transformation Companies in 2026 #1
- Largest Consulting Firms (2026) #1
- Best IT Consulting Firms in 2026 #1
- Largest Accounting Firms (2026) #1
- Top 50 Cybersecurity Service Providers: 2026 Edition #9
Deloitte alternatives and competitors
Alternatives to Deloitte: companies ranked in the same lists.
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