Adecco vs Kelly Services:Which is more popular?
In September 2026, Adecco had more branded searches than Kelly Services among staffing agencies worldwide. Adecco had about 1.5 million branded searches, while Kelly Services had 250,000. Adecco made up 35.6% of all staffing agency searches we track, and Kelly Services accounted for 5.9%. When we asked ChatGPT and Google AI Overviews about staffing agencies, Kelly Services appeared in one of the three answers and Adecco in none.
Who do people search for more?
Adecco, about 6 searches for every 1 for Kelly Services
Who does AI mention more?
Kelly Services, mentioned in 1 of 3 answers, Adecco in 0
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Top staffing agencies in ChatGPT and Google AI Overviews
In three ChatGPT questions, Kelly Services was mentioned in one out of three: in one of the three ChatGPT answers. Adecco did not appear in any of the three 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.
- Express Employment Professionals2 of 3Named in 2 of 3 ChatGPT answers
- Aerotek2 of 3Named in 2 of 3 ChatGPT answers
Randstad1 of 3Named in 1 of 3 ChatGPT answers- Kelly Services1 of 3Named in 1 of 3 ChatGPT answers
Robert Half1 of 3Named in 1 of 3 ChatGPT answers- Adecco0 of 3Named in 0 of 3 ChatGPT answers
Hays0 of 3Named in 0 of 3 ChatGPT answers
Manpower0 of 3Named in 0 of 3 ChatGPT answers
See every answer about staffing agencies
3 answers
Asked ChatGPT
“Which staffing agency should I hire?”
Asked ChatGPT
“What are the best staffing agencies?”
Asked ChatGPT
“What's the best staffing agency for temporary workers?”
Searched Google, AI Overview
“staffing agencies”
Google showed no AI Overview for this search.
Searched Google, AI Overview
“temp agency”
Google showed no AI Overview for this search.
Brands are shown in the order each answer named them. The survey took place in the United States on October 21, 2026.
Is Adecco or Kelly Services more popular in search?
This chart shows how often people search Google for Adecco and Kelly Services by name. Each line represents a brand's share of searches for all eight staffing agencies we track, month by month, from English-language searches worldwide.
Share of searches by month for Adecco, Kelly Services. The figures are in the table below the chart.
View monthly share of searches table
| Month | Adecco | Randstad | Express Employment Professionals | Kelly Services | Robert Half | Aerotek | Hays | Manpower |
|---|---|---|---|---|---|---|---|---|
| Oct 2025 | 34.8% | 34.8% | 7% | 4.7% | 7% | 5.7% | 5.7% | 0.34% |
| Nov 2025 | 35.1% | 35.1% | 7.1% | 4.8% | 7.1% | 4.7% | 5.8% | 0.35% |
| Dec 2025 | 31.5% | 38.4% | 7.7% | 5.2% | 6.3% | 5.2% | 5.2% | 0.38% |
| Jan 2026 | 35.6% | 35.6% | 5.8% | 4.9% | 7.1% | 5.8% | 4.8% | 0.35% |
| Feb 2026 | 32.1% | 39.5% | 6.5% | 4.4% | 6.5% | 5.3% | 5.3% | 0.39% |
| Mar 2026 | 36.3% | 36.3% | 7.3% | 4.1% | 6% | 4.9% | 4.9% | 0.36% |
| Apr 2026 | 31.7% | 38.9% | 7.8% | 4.4% | 6.4% | 5.2% | 5.2% | 0.38% |
| May 2026 | 32.5% | 40% | 6.6% | 4.5% | 5.4% | 5.4% | 5.4% | 0.32% |
| Jun 2026 | 32.1% | 39.4% | 7.9% | 4.4% | 5.3% | 5.3% | 5.3% | 0.32% |
| Jul 2026 | 34.2% | 34.2% | 8.4% | 4.7% | 6.9% | 5.6% | 5.6% | 0.28% |
| Aug 2026 | 29.1% | 35.5% | 8.8% | 7.3% | 7.2% | 5.9% | 5.9% | 0.43% |
| Sep 2026 | 35.6% | 35.6% | 7.1% | 5.9% | 5.8% | 4.8% | 4.8% | 0.35% |
How has the Adecco and Kelly Services comparison changed over the last 12 months?
3 findings
- Adecco was ahead of Kelly Services in every measured month of the 12 months ending September 2026.
- Across the 12 months ending September 2026, Adecco’s share of searches among staffing agencies worldwide moved from 34.8% to 35.6%, and its estimated monthly branded searches held steady at 1.5M.
- Across the 12 months ending September 2026, Kelly Services’ share of searches among staffing agencies worldwide moved from 4.7% to 5.9%, and its estimated monthly branded searches moved from 203K to 250K.
How did search popularity change for staffing agencies worldwide in September 2026?
2 changes
In September 2026, Adecco overtook Randstad to become the leader among staffing agencies worldwide, with 35.6% of the searches.
In September 2026, Kelly Services lost share of searches among staffing agencies worldwide, from 7.3% to 5.9%.
How are branded searches counted?
3 search terms
Brandwave collects information about searches that people make online using Adecco’s and Kelly Services’ 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.
Adecco
1 branded search term
- adecco
Kelly Services
2 branded search terms
- kelly services
- kellyservices
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