# PEO providers for enterprise buyers: what AI models recommend, November 2026

Gane Index, November 2026 Edition. Asked as "PEO" and as "professional employer organization", six framings each, to fourteen models with search on, on behalf of an enterprise B2B company. Added to the November 2026 Edition. Page: https://www.gane.ai/index/hr/core/peo-providers/enterprise

**Standing:** ADP TotalSource leads with 67% of first choices; verdict clear leader. 48 first choices across the direct, paraphrase, budget and scale prompts.

## First-choice share

| Rank | Product | Share | Negative rate | Labels |
|---|---|---|---|---|
| 1 | [ADP TotalSource](https://www.gane.ai/index/hr/vendors/adp-totalsource/index.md) | 67% | 11% | 66 |
| 2 | [TriNet](https://www.gane.ai/index/hr/vendors/trinet/index.md) | 10% | 13% | 55 |
| 3 | Infiniti HR | 8% | 0% | 13 |
| 4 | [Justworks](https://www.gane.ai/index/hr/vendors/justworks/index.md) | 6% | 43% | 23 |
| 5 | [Rippling](https://www.gane.ai/index/hr/vendors/rippling/index.md) | 2% | 7% | 29 |
| 9 | [Insperity](https://www.gane.ai/index/hr/vendors/insperity/index.md) | 0% | 12% | 43 |
| 10 | [Paychex PEO](https://www.gane.ai/index/hr/vendors/paychex-peo/index.md) | 0% | 12% | 24 |
| 11 | [Deel PEO](https://www.gane.ai/index/hr/vendors/deel-peo/index.md) | 0% | 8% | 13 |

Rank is by share of first choices among all 49 products named; products with the same share are tied, and the order among them carries no meaning. The table lists those with at least 10 labels.

## Each model's first choice on the direct prompt

- Claude Haiku 4.5: no first choice
- GPT-5.4 mini: ADP TotalSource; alternatives Justworks, Rippling, TriNet
- Gemini 3.5 Flash: Rippling; alternatives ADP TotalSource, Insperity, TriNet
- Perplexity Sonar: ADP TotalSource; alternatives Deel PEO, Insperity, Remote, Rippling
- Grok 4.20: ADP TotalSource, Infiniti HR; alternatives Remote, TriNet
- Mistral Small: ADP TotalSource, Infiniti HR; alternatives Deel PEO, Oyster
- DeepSeek V4 Flash: ADP TotalSource; alternatives Infiniti HR, Rippling
- Llama 4 Maverick: Infiniti HR; alternatives Amplify HR, BBSI, Deel PEO, Insperity
- Qwen 3.7 Flash: TriNet; alternatives ADP TotalSource, Insperity, Rippling
- Kimi K2: ADP TotalSource; alternatives BBSI, Infiniti HR, Rippling, TriNet
- GLM 4.7 FlashX: ADP TotalSource; alternatives Amplify HR, Insperity, Remote, Rippling
- MiniMax M2.5: ADP TotalSource; alternatives BBSI, Infiniti HR, Rippling, TriNet
- GPT-6 Luna: ADP TotalSource; alternatives Insperity, TriNet
- Muse Glimmer 30B: ADP TotalSource; alternatives Insperity, Paychex PEO, Rippling, TriNet

## Sources the answers cite

75 of 84 answers came back with a source list, from 14 of 14 models. Sites named in the most answers:

- adp.com: 28 answers, 36 citations
- peometrics.com: 27 answers, 43 citations
- employsome.com: 25 answers, 32 citations
- leadchangegroup.com: 21 answers, 33 citations
- forbes.com: 20 answers, 20 citations
- wisemonk.io: 18 answers, 25 citations
- eorhq.com: 17 answers, 17 citations
- ins-globalconsulting.com: 17 answers, 17 citations

Pages named in the most answers:

- https://employsome.com/peo/peo-services (25 answers)
- https://forbes.com/advisor/business/software/best-peo-services (19 answers)
- https://eorhq.com/guides/best-peo-companies (17 answers)
- https://ins-globalconsulting.com/news-post/best-14-peo-services-companies (17 answers)
- https://wisemonk.io/blogs/best-peo-providers (17 answers)
- https://remotepad.com/best-peo-services (14 answers)
- https://g2.com/categories/peo-providers/enterprise (13 answers)
- https://guideflow.com/blog/peo-providers (13 answers)
- https://leadchangegroup.com/peo-services/enterprise (13 answers)
- https://adp.com/what-we-offer/hr-outsourcing-and-peo/professional-employer-organization.aspx (11 answers)

## Warned against

- Justworks: 10 of 23 labels negative. "Avoid or conduct extreme due diligence on: BaronHR (discrimination liability) - Justworks (active litigation, cultural compliance concerns)" (Kimi K2, negative prompt)
- TriNet: 7 of 55 labels negative. "The BBB currently shows 56 complaints against TriNet in the last three years... "Judge Dismisses Shareholders' Suit Against PEO TriNet"" (Muse Glimmer 30B, negative prompt)
- ADP TotalSource: 7 of 66 labels negative. ""Do not, under any circumstances, look at ADP." ... Public litigation includes retirement-plan fee cases tied to ADP TotalSource" (Muse Glimmer 30B, negative prompt)
- Insperity: 5 of 43 labels negative. "focuses on small and medium-sized businesses. For a large enterprise, verify capacity for complex multi-entity, multi-state, union" (GPT-6 Luna, negative prompt)

## Movement since October 2026

Floor: 13 points of share, measured on the calibration repeat.
Same leader: ADP TotalSource at 67%.

- Rippling: 10% to 2%, −8. Inside the floor by 5 points · rank 3 → 5 of 49.
- Infiniti HR: 2% to 8%, +6. Inside the floor by 7 points · rank 5 → 3 of 49.
- ADP TotalSource: 62% to 67%, +5. Inside the floor by 8 points · rank 1 of 49, unchanged.
- Justworks: 2% to 6%, +4. Inside the floor by 9 points · rank 10 → 4 of 49.
- TriNet: 12% to 10%, −2. Inside the floor by 11 points · rank 2 of 49, unchanged.
- Paychex PEO: 2% to 0%, −2. Inside the floor by 11 points · rank 4 → 10 of 49.
- Insperity: 0% to 0%, ±0. Inside the floor by 13 points · rank 11 → 9 of 49.
- Deel PEO: 0% to 0%, ±0. Inside the floor by 13 points · rank 12 → 11 of 49.

## Record

- Method: https://www.gane.ai/index/hr/methodology
- License: CC BY 4.0. Cite as Gane Index, November 2026 Edition, www.gane.ai/index/hr.