Google Ad Manager vs Sizmek:Which is more popular by branded search?
In August 2026, Google Ad Manager had more branded searches than Sizmek among ad server platforms worldwide. Google Ad Manager was estimated to have 135K branded searches compared to Sizmek’s 590, and held a 62.1% Share of Search versus Sizmek’s 0.27%. These are worldwide searches for English-language branded terms.
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Which is more popular in search, Google Ad Manager or Sizmek?
Compare the servers publishers run ads through. 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 Google Ad Manager, Sizmek. The figures are in the table below the chart.
View monthly share of search table
| Month | Google Ad Manager | Amazon Ads | Kevel | Xandr | Sizmek |
|---|---|---|---|---|---|
| Oct 2025 | 51.5% | 43.3% | 2.1% | 2.5% | 0.61% |
| Nov 2025 | 52% | 43.7% | 1.7% | 2.1% | 0.47% |
| Dec 2025 | 52% | 43.7% | 1.7% | 2.1% | 0.47% |
| Jan 2026 | 56.2% | 38.8% | 2.2% | 2.2% | 0.51% |
| Feb 2026 | 56.4% | 38.9% | 1.8% | 2.3% | 0.51% |
| Mar 2026 | 56.7% | 38.7% | 2.3% | 1.8% | 0.42% |
| Apr 2026 | 61.6% | 34.5% | 2% | 1.6% | 0.33% |
| May 2026 | 61.6% | 34.4% | 2% | 1.6% | 0.4% |
| Jun 2026 | 61.6% | 34.5% | 2% | 1.6% | 0.33% |
| Jul 2026 | 62.1% | 34.6% | 1.7% | 1.3% | 0.33% |
| Aug 2026 | 62.1% | 34.6% | 1.7% | 1.3% | 0.27% |
| Sep 2026 | — | — | — | — | — |
How has the Google Ad Manager and Sizmek comparison changed over the last 12 months?
3 findings
- Google Ad Manager was ahead of Sizmek in every measured month of the 11 months ending August 2026.
- Across the 11 months ending August 2026, Google Ad Manager’s estimated Share of Search among ad server platforms worldwide moved from 51.5% to 62.1%, and its estimated monthly branded searches moved from 110K to 135K.
- Across the 11 months ending August 2026, Sizmek’s estimated Share of Search among ad server platforms worldwide moved from 0.61% to 0.27%, and its estimated monthly branded searches moved from 1.3K to 590.
How did search popularity change for ad server platforms worldwide in August 2026?
2 changes

Estimated monthly branded searches for Google Ad Manager worldwide rose 22.7% over 11 measured months, from 110K to 135K in August 2026.
Estimated monthly branded searches for Sizmek worldwide fell 54.6% over 11 measured months, from 1.3K to 590 in August 2026.
How each brand is measured
Brandwave collects information about searches that people make online using Google Ad Manager’s and Sizmek’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.
Google Ad Manager
1 branded search term
- google ad manager
Sizmek
1 branded search term
- sizmek

Put your own brand in this comparison
Brandwave tracks your branded demand next to the rival you actually watch, with your campaigns, spend and outcomes on the same timeline.