Deloitte vs EY:Which is searched more?
In September 2026, Deloitte had more branded searches than EY among tax advisory brands worldwide. Deloitte was estimated to have 1.8M branded searches compared to EY’s 958K, and held a 36.5% Share of Search versus EY’s 19.1%. These are worldwide searches for English-language branded terms.
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Which is more popular in search, Deloitte or EY?
Compare the tax advisory brands people buy. Branded searches tell you how often people look for a brand by name or related terms. Comparing these searches across competitors helps you see how popular each brand is over time.
Share of Search by month for Deloitte, EY. The figures are in the table below the chart.
View monthly share of search table
| Month | Deloitte | KPMG | PwC | EY | BDO |
|---|---|---|---|---|---|
| Oct 2025 | 36.3% | 24.2% | 19.8% | 19.6% | 0.09% |
| Nov 2025 | 38.2% | 20.9% | 20.9% | 20% | 0.08% |
| Dec 2025 | 31.7% | 21.4% | 25.9% | 21% | 0.08% |
| Jan 2026 | 33.6% | 22.4% | 22.4% | 21.5% | 0.08% |
| Feb 2026 | 33.6% | 22.4% | 22.4% | 21.5% | 0.08% |
| Mar 2026 | 33.6% | 22.4% | 22.4% | 21.5% | 0.08% |
| Apr 2026 | 33.6% | 22.4% | 22.4% | 21.5% | 0.07% |
| May 2026 | 35% | 23.3% | 19.2% | 22.4% | 0.07% |
| Jun 2026 | 33.3% | 27.1% | 18.3% | 21.3% | 0.06% |
| Jul 2026 | 36.3% | 24.2% | 19.9% | 19.5% | 0.07% |
| Aug 2026 | 35% | 23.3% | 19.2% | 22.4% | 0.07% |
| Sep 2026 | 36.5% | 24.3% | 20% | 19.1% | 0.07% |
How has the Deloitte and EY comparison changed over the last 12 months?
3 findings
- Deloitte was ahead of EY in every measured month of the 12 months ending September 2026.
- Across the 12 months ending September 2026, Deloitte’s estimated Share of Search among tax advisory brands worldwide moved from 36.3% to 36.5%, and its estimated monthly branded searches held steady at 1.8M.
- Across the 12 months ending September 2026, EY’s estimated Share of Search among tax advisory brands worldwide moved from 19.6% to 19.1%, and its estimated monthly branded searches moved from 988K to 958K.
How did search popularity change for tax advisory brands worldwide in September 2026?
3 changes
In September 2026, PwC overtook EY to rank 3rd among tax advisory brands worldwide, with 20% estimated Share of Search.
In September 2026, Deloitte gained estimated Share of Search among tax advisory brands worldwide, from 35% to 36.5%.
In September 2026, EY lost estimated Share of Search among tax advisory brands worldwide, from 22.4% to 19.1%.
Other head-to-heads among tax advisory brands
How each brand is measured
Brandwave collects information about searches that people make online using Deloitte’s and EY’s names. When viewed over time, estimated search volumes for these branded terms can be used to understand whether interest in the brands is growing, holding steady, or fading.
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