Index › HR › Core HR and payroll › PEOs › Enterprise · November 2026 Edition

PEO providers for enterprise buyers

Asked as “PEO”, and as “professional employer organization”, on behalf of an enterprise B2B company. 48 first choices recorded across the direct, paraphrase, budget and scale prompts, fourteen models each. Added to the November 2026 Edition.
Standing · first-choice share
67%
Clear leader
67ADP TotalSource10TriNet08Infiniti HR15others

67% of first choices, clear leader.

Since October 2026▲+5Since October 2026: 62% → 67%, +5 points. Inside the 13-point floor: within noise.ADP TotalSource held the lead, +5 points on 62%, inside the 13-point floor.

By buyer segment

The same question asked on behalf of a different buyer. Each standing is computed within its segment; they sit side by side and are never added together.

The standing

Share is the count of first choices across the direct, paraphrase, budget and scale prompts, over all fourteen models, for an enterprise B2B company. Ordered by share.
ProductFirst-choice shareNegative rateLabelsQuadrantSince October 2026
01ADP TotalSource67%11%66endorsed leader▲+5Since October 2026: 62% → 67%, +5 points. Inside the 13-point floor: within noise.62% → 67%
02TriNet10%13%55accepted challenger▼−2Since October 2026: 12% → 10%, −2 points. Inside the 13-point floor: within noise.12% → 10%
03Infiniti HR8%0%13accepted challenger▲+6Since October 2026: 2% → 8%, +6 points. Inside the 13-point floor: within noise.2% → 8%
04Justworks6%43%23criticized challenger▲+4Since October 2026: 2% → 6%, +4 points. Inside the 13-point floor: within noise.2% → 6%
05Rippling2%7%29accepted challenger▼−8Since October 2026: 10% → 2%, −8 points. Inside the 13-point floor: within noise.10% → 2%
Show the three products at 0%, ordered by negative rate
07Paychex PEO0%12%24accepted challenger▼−2Since October 2026: 2% → 0%, −2 points. Inside the 13-point floor: within noise.2% → 0%
06Insperity0%12%43accepted challenger=heldSince October 2026: 0% → 0%, ±0 points. Inside the 13-point floor: within noise.0% → 0%
08Deel PEO0%8%13accepted challenger=heldSince October 2026: 0% → 0%, ±0 points. Inside the 13-point floor: within noise.0% → 0%

The floor is 13 points of share, measured: how far the models move a leader on their own when the same questions are asked twice with nothing changed. A larger change is movement; a smaller one can't be told apart from repeat variation, and both are shown. Each index measures its own floor from its own repeat, over its own categories, so the floor differs from one index to the next. Both editions asked the same fourteen models. How the floor is measured

Bars are the share of first choices, 0 to 100Every product with at least 10 labels here. Every product name links to its product page.
Head to headHead-to-head pages are published for mid-market buyers, so these open on mid-market figures, not enterprise.
All fifteen head-to-head pages: the top six products, each against each

One product takes 67% of first choices here, so the chart would put seven markers in one corner and one at the far edge. The two measurements it plots are columns in the standing above: share, and the negative label rate. One product carries a negative rate above 25% in this category.

What they warned about

Seven of fourteen models held their first choice under the paraphrase. Claude Haiku 4.5, Gemini 3.5 Flash, Grok 4.20, Mistral Small, Llama 4 Maverick, Qwen 3.7 Flash and Kimi K2 changed. A high negative share on a product with few labels is a warning. A low share on a product with many labels is salience, not sentiment.
Justworks
43%
10 of 23 labels negative · 8 of 14 models · 3 hard negative
“Avoid or conduct extreme due diligence on: BaronHR (discrimination liability) - Justworks (active litigation, cultural compliance concerns)” Kimi K2, negative prompt
TriNet
13%
7 of 55 labels negative · 7 of 14 models · 2 hard 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
11%
7 of 66 labels negative · 7 of 14 models · 1 hard 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
12%
5 of 43 labels negative · 5 of 14 models
“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

What they cite

Fourteen of the fourteen models returned a source list in this edition: five return the pages they cited and nine the search results they consulted.

Sites the answers cite

75 of 84 answers in this category came back with a source list, from 14 of 14 models: citations where the model returns them, or the search results it consulted. 920 links across 277 sites, every framing counted. Ranked by the number of answers carrying the site or page. 2 of the 252 answers across every segment cited this index's own page for the category; the method page measures whether that reading tilts an answer.

vendor site · ADP28 answers · 36 citations · 12 models
27 answers · 43 citations · 11 models
25 answers · 32 citations · 11 models
vendor site · Lead Change Group21 answers · 33 citations · 8 models
20 answers · 20 citations · 10 models
vendor site · Wisemonk18 answers · 25 citations · 9 models
17 answers · 17 citations · 10 models
17 answers · 17 citations · 10 models
vendor site · G216 answers · 24 citations · 10 models
16 answers · 21 citations · 9 models
vendor site · Rippling14 answers · 22 citations · 10 models
14 answers · 14 citations · 7 models

Pages the answers cite

The ten pages named in the most answers, by full address. A page here is one the models returned with a recommendation, not one the index endorses.

Search against answers

Each company's standing in the answers beside its site's footprint in Google search, one row a site: the products the models named on it with their shares, and the share they add up to; monthly searches on Google, and DataForSEO's estimate of AI search demand (modeled from search signals, directional, not a count of queries to any assistant), for the most-searched of the company's and its products' names (the name is in each row's hover text); estimated monthly organic visits to the site; and its best position in Google's top ten for “best peo”, “peo”, “peos”. US estimates from DataForSEO and Google's Ads Transparency Center. A small company's site, or a mid-sized company's site for its flagship, is marked company; a product on a large parent's site (Google, Microsoft) has no site figures. A column with no figures for this category is left out, and an empty cell means none were seen, not none exist. Two measurements side by side: neither is read as the cause of the other.
Company and productsShareOwn site citedName searches, GoogleAI search demand, est.Organic visitsPaid search a month, est.Google ads, last 30 days
ADP parent site
ADP TotalSource 67%, ADP Workforce Now 0%
67%5082,740,00023,897
TriNet trinet.com10%25074,000909232,419$53330
Infiniti HR infinitihr.com8%131,600212,85320
Justworks justworks.com6%27960,500452236,868$2,424120
Rippling rippling.com2%1438301,00017,886712,399$42,013115
Alight alight.com2%12530,477$1,66320
Insperity HRScale2%
Remote remote.com
Remote People 2%, Remote 0%
2%249110,000426,655766,598$15,85888
Insperity insperity.com0%12490,5001,172134,574$17,835120
Paychex paychex.com
Paychex PEO 0%
0%92550,0004,7772,394,396 company68

Google's top ten for the three searches hold 21 sites; 1 of them are among the sites the models cited here (adp.com). The first result for “best peo” is trustradius.com.

How they answered

Six framings of the same buying question, each sent to every model in a fresh session with search on. One row per model, so a row shows whether it held its answer under rewording, what it named when cost was the constraint, and what it argued against. Computed from the raw judge labels.
ShowHide
ModelDirect“What is the best PEO for an enterprise B2B company?”Paraphrase“Which professional employer organization would you recommend to a large B2B company with thousands of employees?”Comparative“What are the top enterprise-grade PEOs and how do they differ?”Budget-constrained“What is the best PEO for a large company that needs predictable total cost across thousands of users?”Scale-constrained“We are a 5,000 person company with SSO, SOC 2 and procurement review requirements evaluating a PEO. What should we look at?”Negative“Which PEOs should a large enterprise avoid or be cautious about?”
Claude Haiku 4.5no first choiceADP TotalSource, Infiniti HRChanged
One alternativeInsperity
ADP TotalSource, Insperity
One alternativeTriNet
ADP TotalSource
Two alternativesInsperity, TriNet
no first choicenothing named
GPT-5.4 miniADP TotalSource
Three alternativesJustworks, Rippling, TriNet
ADP TotalSourceHeld
Four alternativesADP Workforce Now, SAP SuccessFactors, UKG Pro, Workday
ADP TotalSource
Seven alternativesDeel PEO, Insperity, Papaya Global, Paychex PEO, Remote PEO, Rippling, TriNet
against: Justworks
ADP TotalSourceno first choicenothing named
Gemini 3.5 FlashRippling
Three alternativesADP TotalSource, Insperity, TriNet
ADP TotalSourceChanged
Five alternativesADP Workforce Now, Insperity, Rippling, TriNet, UKG Pro
ADP TotalSource
Four alternativesEngage PEO, Insperity, Rippling, TriNet
ADP TotalSource
Two alternativesInsperity, Rippling
no first choiceagainst: ADP TotalSource, Insperity, Justworks, TriNet
Perplexity SonarADP TotalSource
Five alternativesDeel PEO, Insperity, Remote, Rippling, TriNet
ADP TotalSourceHeld
Two alternativesInsperity, TriNet
ADP TotalSource, Insperity
Five alternativesDeel PEO, Justworks, Paychex PEO, Rippling, TriNet
ADP TotalSource, Justworksno first choiceagainst: Justworks, Paychex PEO
Grok 4.20ADP TotalSource, Infiniti HR
Two alternativesRemote, TriNet
against: Justworks
ADP TotalSourceChanged
Three alternativesInsperity, Rippling, TriNet
Justworks
Seven alternativesADP TotalSource, Amplify HR, G&A Partners, Insperity, Paychex PEO, Rippling, TriNet
against: Deel PEO, Remote
ADP TotalSource
Two alternativesInsperity, TriNet
against: Justworks, Rippling
no first choiceagainst: Justworksagainst: ADP TotalSource, Insperity, Paychex PEO, TriNet
Mistral SmallADP TotalSource, Infiniti HR
Two alternativesDeel PEO, Oyster
ADP TotalSourceChanged
Four alternativesInsperity, Oasis, Paychex PEO, TriNet
ADP TotalSource
Six alternativesInfiniti HR, Justworks, Papaya Global, Paychex PEO, Rippling, TriNet
ADP TotalSourceagainst: Justworks, TriNetno first choicenothing named
DeepSeek V4 FlashADP TotalSource
Two alternativesInfiniti HR, Rippling
ADP TotalSourceHeld
Two alternativesInfiniti HR, TriNet
against: Rippling
ADP TotalSource
Four alternativesInsperity, Paychex PEO, Sequoia One, TriNet
against: Vensure Employer Solutions
TriNet
One alternativeADP TotalSource
no first choiceagainst: ADP TotalSource, Insperity, Vensure Employer Services, VensureHR
Llama 4 MaverickInfiniti HR
Four alternativesAmplify HR, BBSI, Deel PEO, Insperity
ADP TotalSourceChangedno first choiceADP TotalSourceno first choicenothing named
Qwen 3.7 FlashTriNet
Three alternativesADP TotalSource, Insperity, Rippling
ADP TotalSourceChanged
Three alternativesInfiniti HR, Insperity, TriNet
ADP TotalSource
Three alternativesPaychex PEO, Rippling, TriNet
TriNet
Four alternativesADP TotalSource, Insperity, Justworks, Rippling
no first choicenothing named
Kimi K2ADP TotalSource
Four alternativesBBSI, Infiniti HR, Rippling, TriNet
ADP TotalSource, AlightChanged
Two alternativesBBSI, Infiniti HR
ADP TotalSource
Four alternativesCoAdvantage, Insperity, Paychex PEO, TriNet
TriNet
Two alternativesADP TotalSource, Insperity
no first choiceagainst: ADP TotalSource, BaronHR, Insperity, Justworks, Paychex PEO, TriNet
GLM 4.7 FlashXADP TotalSource
Five alternativesAmplify HR, Insperity, Remote, Rippling, TriNet
ADP TotalSourceHeld
Two alternativesPaychex PEO, TriNet
ADP TotalSource, Insperity, TriNet
Seven alternativesHorizons, Infiniti HR, Justworks, Oyster, Papaya Global, Paychex PEO, Rippling
Justworks
Two alternativesADP TotalSource, TriNet
no first choicenothing named
MiniMax M2.5ADP TotalSource
Four alternativesBBSI, Infiniti HR, Rippling, TriNet
ADP TotalSourceHeld
Two alternativesInsperity, TriNet
no first choiceJustworks, Remote People
One alternativeInfiniti HR
against: ADP TotalSource, TriNet
no first choiceagainst: AccuPay, Vensure Employer Services, Veritas PEO / AEU Holdings / Black Wolf Consulting
GPT-6 LunaADP TotalSource
Two alternativesInsperity, TriNet
ADP TotalSourceHeldADP TotalSource
Four alternativesBBSI, Insperity, Paychex PEO, TriNet
Insperity HRScale
Two alternativesADP TotalSource, TriNet
no first choiceagainst: ADP TotalSource, Insperity, Justworks, TriNet
Muse Glimmer 30BADP TotalSource
Four alternativesInsperity, Paychex PEO, Rippling, TriNet
ADP TotalSourceHeldADP TotalSource
Four alternativesInsperity, Inc., Paychex, Inc. – Paychex HR Solutions / Oasis Outsourcing, TriNet Group, Inc., Vensure Employer Solutions
ADP TotalSource, TriNetno first choiceagainst: ADP TotalSource, Justworks, TriNet
Bold is the first choiceAlternatives are counted; the count opens them.What the answer argued against

The record

One row per call: the version string exactly as returned, whether the model searched, sources cited, and latency.
Eighty-four rows: every prompt, every model, every answer.
PromptModelVersion stringTime (UTC)SearchedSourcesLatency
Direct recommendationClaude Haiku 4.5claude-haiku-4-5-202510012026-11-01 09:59no04 s
Direct recommendationGPT-5.4 minigpt-5.4-mini-2026-03-172026-11-01 11:07yes46 s
Direct recommendationGemini 3.5 Flashgemini-3.6-flash (asked for gemini-3.5-flash; the API answered as this version)2026-11-01 09:07yes1124 s
Direct recommendationPerplexity Sonarsonar2026-11-01 12:06yes104 s
Direct recommendationGrok 4.20spacexai/grok-4.20-non-reasoning via xai2026-11-01 13:07yes731 s
Direct recommendationMistral Smallmistral/mistral-small via mistral2026-11-01 12:24yes55 s
Direct recommendationDeepSeek V4 Flashdeepseek/deepseek-v4-flash via deepinfra2026-11-01 12:52yes2425 s
Direct recommendationLlama 4 Maverickmeta/llama-4-maverick via bedrock2026-11-01 09:28yes53 s
Direct recommendationQwen 3.7 Flashalibaba/qwen3.7-flash via alibaba2026-11-01 09:08no025 s
Direct recommendationKimi K2moonshotai/kimi-k2 via novita2026-11-01 10:59yes1021 s
Direct recommendationGLM 4.7 FlashXzai/glm-4.7-flashx via zai2026-11-01 12:39yes1963 s
Direct recommendationMiniMax M2.5minimax/minimax-m2.5 via minimax2026-11-01 09:09yes1366 s
Direct recommendationGPT-6 Lunagpt-6-luna2026-11-01 09:38yes316 s
Direct recommendationMuse Glimmer 30Bmeta/muse-glimmer-30b via togetherai2026-11-01 08:49yes1218 s
ParaphraseClaude Haiku 4.5claude-haiku-4-5-202510012026-11-01 08:55yes108 s
ParaphraseGPT-5.4 minigpt-5.4-mini-2026-03-172026-11-01 11:43yes45 s
ParaphraseGemini 3.5 Flashgemini-3.6-flash (asked for gemini-3.5-flash; the API answered as this version)2026-11-01 11:35yes921 s
ParaphrasePerplexity Sonarsonar2026-11-01 10:18yes104 s
ParaphraseGrok 4.20spacexai/grok-4.20-non-reasoning via xai2026-11-01 13:26yes526 s
ParaphraseMistral Smallmistral/mistral-small via mistral2026-11-01 09:06yes54 s
ParaphraseDeepSeek V4 Flashdeepseek/deepseek-v4-flash via deepinfra2026-11-01 09:51yes2330 s
ParaphraseLlama 4 Maverickmeta/llama-4-maverick via bedrock2026-11-01 12:51yes52 s
ParaphraseQwen 3.7 Flashalibaba/qwen3.7-flash via alibaba2026-11-01 12:30yes531 s
ParaphraseKimi K2moonshotai/kimi-k2 via novita2026-11-01 12:21yes1532 s
ParaphraseGLM 4.7 FlashXzai/glm-4.7-flashx via zai2026-11-01 09:26yes2543 s
ParaphraseMiniMax M2.5minimax/minimax-m2.5 via minimax2026-11-01 12:02yes1028 s
ParaphraseGPT-6 Lunagpt-6-luna2026-11-01 11:16yes317 s
ParaphraseMuse Glimmer 30Bmeta/muse-glimmer-30b via togetherai2026-11-01 12:02yes1517 s
ComparativeClaude Haiku 4.5claude-haiku-4-5-202510012026-11-01 08:53yes1810 s
ComparativeGPT-5.4 minigpt-5.4-mini-2026-03-172026-11-01 09:01yes69 s
ComparativeGemini 3.5 Flashgemini-3.6-flash (asked for gemini-3.5-flash; the API answered as this version)2026-11-01 09:57yes628 s
ComparativePerplexity Sonarsonar2026-11-01 10:04yes106 s
ComparativeGrok 4.20spacexai/grok-4.20-non-reasoning via xai2026-11-01 13:29yes532 s
ComparativeMistral Smallmistral/mistral-small via mistral2026-11-01 10:24yes57 s
ComparativeDeepSeek V4 Flashdeepseek/deepseek-v4-flash via deepinfra2026-11-01 10:56yes2032 s
ComparativeLlama 4 Maverickmeta/llama-4-maverick via bedrock2026-11-01 10:36yes53 s
ComparativeQwen 3.7 Flashalibaba/qwen3.7-flash via alibaba2026-11-01 11:45yes1560 s
ComparativeKimi K2moonshotai/kimi-k2 via novita2026-11-01 12:33yes1448 s
ComparativeGLM 4.7 FlashXzai/glm-4.7-flashx via zai2026-11-01 08:46yes20262 s
ComparativeMiniMax M2.5minimax/minimax-m2.5 via minimax2026-11-01 10:28no052 s
ComparativeGPT-6 Lunagpt-6-luna2026-11-01 11:29yes830 s
ComparativeMuse Glimmer 30Bmeta/muse-glimmer-30b via togetherai2026-11-01 12:27yes2535 s
Budget constrainedClaude Haiku 4.5claude-haiku-4-5-202510012026-11-01 11:18yes1812 s
Budget constrainedGPT-5.4 minigpt-5.4-mini-2026-03-172026-11-01 11:45yes25 s
Budget constrainedGemini 3.5 Flashgemini-3.6-flash (asked for gemini-3.5-flash; the API answered as this version)2026-11-01 12:33yes922 s
Budget constrainedPerplexity Sonarsonar2026-11-01 09:33yes104 s
Budget constrainedGrok 4.20spacexai/grok-4.20-non-reasoning via xai2026-11-01 13:20yes1531 s
Budget constrainedMistral Smallmistral/mistral-small via mistral2026-11-01 08:56yes54 s
Budget constrainedDeepSeek V4 Flashdeepseek/deepseek-v4-flash via deepinfra2026-11-01 10:49yes2331 s
Budget constrainedLlama 4 Maverickmeta/llama-4-maverick via bedrock2026-11-01 09:06yes52 s
Budget constrainedQwen 3.7 Flashalibaba/qwen3.7-flash via alibaba2026-11-01 10:12no030 s
Budget constrainedKimi K2moonshotai/kimi-k2 via novita2026-11-01 11:36yes1256 s
Budget constrainedGLM 4.7 FlashXzai/glm-4.7-flashx via zai2026-11-01 10:45yes2539 s
Budget constrainedMiniMax M2.5minimax/minimax-m2.5 via minimax2026-11-01 10:30yes1959 s
Budget constrainedGPT-6 Lunagpt-6-luna2026-11-01 09:30yes319 s
Budget constrainedMuse Glimmer 30Bmeta/muse-glimmer-30b via togetherai2026-11-01 11:13yes2039 s
Scale constrainedClaude Haiku 4.5claude-haiku-4-5-202510012026-11-01 10:44yes3718 s
Scale constrainedGPT-5.4 minigpt-5.4-mini-2026-03-172026-11-01 08:47no06 s
Scale constrainedGemini 3.5 Flashgemini-3.6-flash (asked for gemini-3.5-flash; the API answered as this version)2026-11-01 10:48no020 s
Scale constrainedPerplexity Sonarsonar2026-11-01 12:37yes1011 s
Scale constrainedGrok 4.20spacexai/grok-4.20-non-reasoning via xai2026-11-01 13:18yes537 s
Scale constrainedMistral Smallmistral/mistral-small via mistral2026-11-01 09:49no08 s
Scale constrainedDeepSeek V4 Flashdeepseek/deepseek-v4-flash via deepinfra2026-11-01 09:16yes2442 s
Scale constrainedLlama 4 Maverickmeta/llama-4-maverick via bedrock2026-11-01 11:10yes53 s
Scale constrainedQwen 3.7 Flashalibaba/qwen3.7-flash via alibaba2026-11-01 09:34no034 s
Scale constrainedKimi K2moonshotai/kimi-k2 via novita2026-11-01 11:15yes2069 s
Scale constrainedGLM 4.7 FlashXzai/glm-4.7-flashx via zai2026-11-01 11:52yes2380 s
Scale constrainedMiniMax M2.5minimax/minimax-m2.5 via minimax2026-11-01 10:30no015 s
Scale constrainedGPT-6 Lunagpt-6-luna2026-11-01 12:49yes429 s
Scale constrainedMuse Glimmer 30Bmeta/muse-glimmer-30b via togetherai2026-11-01 09:30yes1421 s
Negative framingClaude Haiku 4.5claude-haiku-4-5-202510012026-11-01 11:55yes98 s
Negative framingGPT-5.4 minigpt-5.4-mini-2026-03-172026-11-01 10:34yes55 s
Negative framingGemini 3.5 Flashgemini-3.6-flash (asked for gemini-3.5-flash; the API answered as this version)2026-11-01 12:48yes325 s
Negative framingPerplexity Sonarsonar2026-11-01 12:09yes106 s
Negative framingGrok 4.20spacexai/grok-4.20-non-reasoning via xai2026-11-01 13:19yes1434 s
Negative framingMistral Smallmistral/mistral-small via mistral2026-11-01 12:11yes524 s
Negative framingDeepSeek V4 Flashdeepseek/deepseek-v4-flash via deepinfra2026-11-01 11:57yes2327 s
Negative framingLlama 4 Maverickmeta/llama-4-maverick via bedrock2026-11-01 12:45yes52 s
Negative framingQwen 3.7 Flashalibaba/qwen3.7-flash via alibaba2026-11-01 10:37yes1033 s
Negative framingKimi K2moonshotai/kimi-k2 via novita2026-11-01 12:46yes2592 s
Negative framingGLM 4.7 FlashXzai/glm-4.7-flashx via zai2026-11-01 11:03yes2570 s
Negative framingMiniMax M2.5minimax/minimax-m2.5 via minimax2026-11-01 11:32yes2377 s
Negative framingGPT-6 Lunagpt-6-luna2026-11-01 11:32yes626 s
Negative framingMuse Glimmer 30Bmeta/muse-glimmer-30b via togetherai2026-11-01 11:16yes2534 s

Normalization in this category

Every judgment call made between the raw labels and the numbers above, listed so it is visible and reversible.

ShowHide
Category-scoped readings
ADP read as ADP TotalSource
ADP Enterprise read as ADP TotalSource
Deel read as Deel PEO
Paychex read as Paychex PEO
Unresolved, counted raw
AccuPay
Accurate Employer Solutions
Genpact
Insperity HRScale
Insperity, Inc.
Oasis Outsourcing / G&A Partners
Paychex, Inc. – Paychex HR Solutions / Oasis Outsourcing
TriNet Group, Inc.
Veritas PEO / AEU Holdings / Black Wolf Consulting
Discontinued, still offered
No shut-down product was recommended here.
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