ADP vs TriNet:Which is more popular?
In September 2026, TriNet had more branded searches than ADP among PEO services in the United States. TriNet had about 60,500 branded searches, while ADP had 18,100. TriNet made up 25.5% of all PEO service searches we track, and ADP accounted for 7.6%. When we asked ChatGPT and Google AI Overviews about PEO services, both ADP and TriNet appeared in all four answers. ADP was mentioned before TriNet in three out of four answers.
Who do people search for more?
TriNet, about 3 searches for every 1 for ADP
Who does AI mention more?
Both are mentioned in every answer we collected.
Who does AI recommend more?
ADP, named ahead of TriNet in 3 of 4 answers
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Top PEO services in ChatGPT and Google AI Overviews
In three ChatGPT questions and one Google AI Overview, both ADP and TriNet showed up in all four answers. ADP was listed before TriNet in three of them.
Most recommended by AI
Brands get a higher ranking if they are mentioned earlier in the answers.
Justworks1st- ADP2nd
- TriNet3rd
Insperity4th
Paychex5th
Rippling6th
CoAdvantage–
Engage PEO–
G&A Partners–
Vensure–
Mentioned by AI
Each dot is one answer, filled in when that answer mentions the brand.
- Insperity4 of 4Named in 3 of 3 ChatGPT answersNamed in 1 of 1 Google answers
- TriNet4 of 4Named in 3 of 3 ChatGPT answersNamed in 1 of 1 Google answers
- ADP4 of 4Named in 3 of 3 ChatGPT answersNamed in 1 of 1 Google answers
- Justworks3 of 4Named in 3 of 3 ChatGPT answersNamed in 0 of 1 Google answers
- Rippling2 of 4Named in 2 of 3 ChatGPT answersNamed in 0 of 1 Google answers
- Paychex2 of 4Named in 1 of 3 ChatGPT answersNamed in 1 of 1 Google answers
- CoAdvantage0 of 4Named in 0 of 3 ChatGPT answersNamed in 0 of 1 Google answers
- Engage PEO0 of 4Named in 0 of 3 ChatGPT answersNamed in 0 of 1 Google answers
- G&A Partners0 of 4Named in 0 of 3 ChatGPT answersNamed in 0 of 1 Google answers
- Vensure0 of 4Named in 0 of 3 ChatGPT answersNamed in 0 of 1 Google answers
See every answer about PEO services
4 answers
Asked ChatGPT
“Which PEO should I use in the US?”
Asked ChatGPT
“What are the best PEOs in the US?”
Asked ChatGPT
“What's the best PEO in the US for a small business with 20 employees?”
Searched Google, AI Overview
“peo”
Searched Google, AI Overview
“peo services”
Google showed no AI Overview for this search.
Not named in any answer:
Brands are shown in the order each answer named them. The survey took place in United States on October 22, 2026.
Is ADP or TriNet more popular in search?
This chart shows how often people search Google for ADP and TriNet by name. Each line represents a brand's share of searches for all ten PEO services we track, month by month, from searches in United States.
Share of searches by month for TriNet, ADP. The figures are in the table below the chart.
View monthly share of searches table
| Month | Insperity | TriNet | CoAdvantage | Engage PEO | ADP | G&A Partners | Vensure | Justworks | Rippling | Paychex |
|---|---|---|---|---|---|---|---|---|---|---|
| Oct 2025 | 34.9% | 28.5% | 10.4% | 7% | 10.4% | 4.7% | 2.5% | 0.66% | 0.5% | 0.34% |
| Nov 2025 | 36.1% | 29.5% | 10.8% | 7.2% | 8.9% | 4% | 2.2% | 0.6% | 0.4% | 0.29% |
| Dec 2025 | 38.4% | 25.8% | 9.5% | 7.7% | 9.5% | 5.2% | 2.8% | 0.46% | 0.35% | 0.31% |
| Jan 2026 | 32.8% | 27% | 12.1% | 9.9% | 8.1% | 5.4% | 3.6% | 0.48% | 0.39% | 0.26% |
| Feb 2026 | 39.7% | 26.7% | 9.8% | 6.5% | 8% | 4.4% | 3.6% | 0.55% | 0.36% | 0.32% |
| Mar 2026 | 36.8% | 30.3% | 9.1% | 6.1% | 9.1% | 4% | 3.3% | 0.6% | 0.43% | 0.33% |
| Apr 2026 | 36.1% | 29.7% | 8.9% | 5.9% | 10.8% | 4% | 3.2% | 0.56% | 0.43% | 0.43% |
| May 2026 | 37.5% | 25% | 9.2% | 7.5% | 9.2% | 5% | 5% | 0.8% | 0.41% | 0.36% |
| Jun 2026 | 34.5% | 28.2% | 10.3% | 6.9% | 8.5% | 5.6% | 4.6% | 0.75% | 0.38% | 0.34% |
| Jul 2026 | 38.1% | 25.5% | 9.3% | 7.6% | 9.3% | 5.1% | 3.4% | 0.88% | 0.42% | 0.37% |
| Aug 2026 | 36.7% | 30% | 9% | 7.3% | 7.3% | 4.9% | 3.3% | 0.75% | 0.41% | 0.29% |
| Sep 2026 | 38.1% | 25.5% | 9.3% | 9.3% | 7.6% | 5.1% | 3.4% | 0.76% | 0.55% | 0.37% |
How has the ADP and TriNet comparison changed over the last 12 months?
3 findings
- TriNet was ahead of ADP in every measured month of the 12 months ending September 2026.
- Across the 12 months ending September 2026, ADP’s share of searches among PEO services in the United States moved from 10.4% to 7.6%, and its estimated monthly branded searches moved from 27.1K to 18.1K.
- Across the 12 months ending September 2026, TriNet’s share of searches among PEO services in the United States moved from 28.5% to 25.5%, and its estimated monthly branded searches moved from 74K to 60.5K.
How did search popularity change for United States PEO services in September 2026?
3 changes
In September 2026, Engage PEO overtook ADP to rank 4th among PEO services in the United States, with 9.3% of the searches.
In September 2026, TriNet lost share of searches among PEO services in the United States, from 30% to 25.5%.
Estimated monthly branded searches for ADP in the United States fell 33.2% over 12 measured months, from 27.1K to 18.1K in September 2026.
How are branded searches counted?
2 search terms
Brandwave collects information about searches that people make online using ADP’s and TriNet’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.
Other head-to-heads among PEO services
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