dentsu vs Omnicom Media Group:Which is more popular?
In September 2026, dentsu had more branded searches than Omnicom Media Group among media buying agencies worldwide. dentsu had about 110,000 branded searches, while Omnicom Media Group had 40,500. dentsu made up 36.1% of all media buying agency searches we track, and Omnicom Media Group accounted for 13.3%. When we asked ChatGPT and Google AI Overviews about media buying agencies, neither dentsu nor Omnicom Media Group appeared in any of the five answers.
Who do people search for more?
dentsu, about 3 searches for every 1 for Omnicom Media Group
Who does AI mention more?
Both were mentioned in 0 of 5 answers.
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Top media buying agencies in ChatGPT and Google AI Overviews
In three ChatGPT questions and two Google AI Overviews, neither dentsu nor Omnicom Media Group showed up in any of the five answers.
Most recommended by AI
Brands get a higher ranking if they are mentioned earlier in the answers.
Mentioned by AI
Each dot is one answer, filled in when that answer mentions the brand.
Tinuiti2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Disruptive Advertising2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Directive2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Hotspex Media2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers- dentsu0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
WPP Media0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Omnicom Media Group0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
IPG Mediabrands0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Publicis Media0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Havas Media0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
See every answer about media buying agencies
5 answers
Asked ChatGPT
“Which media buying agency should I hire?”
Asked ChatGPT
“What are the best media buying agencies?”
Asked ChatGPT
“What's the best media buying agency for ad campaigns?”
Searched Google, AI Overview
“media buying agencies”
Searched Google, AI Overview
“digital media buying agency”
Not named in any answer:
Brands are shown in the order each answer named them. The survey took place in the United States on October 21, 2026.
Is dentsu or Omnicom Media Group more popular in search?
This chart shows how often people search Google for dentsu and Omnicom Media Group by name. Each line represents a brand's share of searches for all ten media buying agencies we track, month by month, from English-language searches worldwide.
Share of searches by month for dentsu, Omnicom Media Group. The figures are in the table below the chart.
View monthly share of searches table
| Month | dentsu | WPP Media | Omnicom Media Group | IPG Mediabrands | Publicis Media | Havas Media | Tinuiti | Disruptive Advertising | Directive | Hotspex Media |
|---|---|---|---|---|---|---|---|---|---|---|
| Oct 2025 | 37% | 25.8% | 11.1% | 11.1% | 6.1% | 5% | 2.3% | 0.82% | 0.64% | 0.11% |
| Nov 2025 | 37.9% | 24.7% | 11.4% | 11.4% | 6.2% | 5.1% | 2% | 0.67% | 0.45% | 0.11% |
| Dec 2025 | 35.6% | 23.1% | 15.9% | 10.7% | 5.8% | 4.8% | 2.7% | 0.76% | 0.51% | 0.1% |
| Jan 2026 | 36.1% | 27.1% | 13.3% | 8.9% | 5.9% | 4.9% | 2.3% | 0.82% | 0.62% | 0.1% |
| Feb 2026 | 36.6% | 26.1% | 13.5% | 9% | 6% | 4.9% | 2.3% | 0.83% | 0.63% | 0.09% |
| Mar 2026 | 36.3% | 26% | 13.4% | 9% | 6% | 4.9% | 2.8% | 0.98% | 0.63% | 0.11% |
| Apr 2026 | 36.6% | 26.1% | 13.5% | 9% | 4.9% | 4.9% | 3.4% | 0.82% | 0.63% | 0.09% |
| May 2026 | 32.5% | 28.3% | 14.6% | 9.7% | 5.3% | 5.3% | 3% | 0.59% | 0.58% | 0.09% |
| Jun 2026 | 33.8% | 29.4% | 12.4% | 8.3% | 6.8% | 5.5% | 2.6% | 0.62% | 0.6% | 0.08% |
| Jul 2026 | 32.6% | 32% | 14.6% | 6.5% | 5.3% | 5.3% | 2.5% | 0.59% | 0.58% | 0.08% |
| Aug 2026 | 33% | 32.4% | 14.8% | 5.4% | 5.4% | 5.4% | 2.5% | 0.59% | 0.47% | 0.06% |
| Sep 2026 | 36.1% | 30.3% | 13.3% | 5.9% | 5.9% | 4.9% | 2.3% | 0.79% | 0.43% | 0.06% |
How has the dentsu and Omnicom Media Group comparison changed over the last 12 months?
3 findings
- dentsu was ahead of Omnicom Media Group in every measured month of the 12 months ending September 2026.
- Across the 12 months ending September 2026, dentsu’s share of searches among media buying agencies worldwide moved from 37% to 36.1%, and its estimated monthly branded searches held steady at 110K.
- Across the 12 months ending September 2026, Omnicom Media Group’s share of searches among media buying agencies worldwide moved from 11.1% to 13.3%, and its estimated monthly branded searches moved from 33.1K to 40.5K.
How did search popularity change for media buying agencies worldwide in September 2026?
2 changes
In September 2026, dentsu gained share of searches among media buying agencies worldwide, from 33% to 36.1%.
In September 2026, Omnicom Media Group lost share of searches among media buying agencies worldwide, from 14.8% to 13.3%.
How are branded searches counted?
2 search terms
Brandwave collects information about searches that people make online using dentsu’s and Omnicom Media Group’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.
dentsu
1 branded search term
- dentsu
Omnicom Media Group
1 branded search term
- omnicom media group
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