Rankings updated Oct 27, 202627 PEOs scored15 IRS-certifiedNo pay-to-rank. How scoring works
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The PEO leaderboard · updated Oct 27, 2026

Every US PEO we could verify, ranked.

27 PEOs scored out of 100 on facts you can check yourself: IRS certification, ESAC accreditation, whether they publish a price, contract terms, minimum headcount and coverage. Nobody pays to move up.

See the full rankingsHow the score works

Top 5 by Trust Score

  1. 1Justworks$79–$124/employee/mo100
  2. 2ADP TotalSource~$70–$200/employee/mo77
  3. 3Insperity~$150–$210/employee/mo77
  4. 4ExtensisHR~$40–$200/employee/mo74
  5. 5Engage PEO~$40–$160/employee/mo72

The full leaderboard

Click a PEO for its score breakdown, cost data and the PEOs ranked just above and below it.

RankPEOPriceCertificationMinimumTrust Score
1JustworksJustworks$79–$124/employee/moCPEOESACNone100A
2ADP TotalSourceADP (NASDAQ: ADP)~$70–$200/employee/moCPEOESAC5 employees77B
3InsperityInsperity (NYSE: NSP)~$150–$210/employee/moCPEOESAC5 employees77B
4ExtensisHRExtensisHR~$40–$200/employee/moCPEOESAC10 employees74B
5Engage PEOEngage PEO~$40–$160/employee/moCPEOESACNot published72B
6TriNetTriNet Group (NYSE: TNET)~$80–$150/employee/moCPEOESACNot published72B
7Paychex PEOPaychex (NASDAQ: PAYX), includes OasisQuote onlyCPEOESAC5 employees67C
8Amplify HRAmplify HR Management~$100–$180/employee/moCPEOESAC: Not confirmedNone54C
9CoAdvantageAquiline Capital Partners~$120–$180/employee/moCPEOESAC: Not confirmed10 employees54C
10Sequoia OneSequoiaQuote onlyCPEOESAC: Not confirmed5 employees47D
11Remote PEORemote$99/employee/moCPEO: Check entityESAC: Not confirmedNot published42D
12Deel PEODeel$125/employee/moCPEO: Check entityESAC: Not confirmedNot published42D
13PrestigePEOTriSpan (majority since 2021)Quote onlyCPEOESAC: Not confirmedNot published42D
14DecisionHRDecisionHRQuote onlyCPEOESAC: Not confirmedNot published36D
15Group Management ServicesGMSQuote onlyCPEOESAC: Not confirmedNot published36D
16Infiniti HRInfiniti HRQuote onlyCPEOESAC: Not confirmedNot published36D
17QuestcoLightBay Capital-backedQuote onlyCPEOESAC: Not confirmedNot published36D
18G&A PartnersG&A PartnersQuote onlyCPEO: Check entityESAC: Not confirmed10 employees34D
19Rippling PEORippling~$85/employee/moCPEO: NoESAC: NoNot published22E
20Vensure Employer SolutionsVensure (private equity-backed)Quote onlyCPEO: Check entityESAC: Not confirmedNot published22E
21AdaptiveHRResourcing Edge spin-offQuote onlyCPEO: Not confirmedESAC: Not confirmedNot published12E
22Fourth PEOFourth (formerly Choice HR)Quote onlyCPEO: Not confirmedESAC: Not confirmedNot published12E
23Cornerstone PEOCornerstoneQuote onlyCPEO: NoESAC: Not confirmedNot published6E
24Employer Solutions GroupEmployer Solutions GroupQuote onlyCPEO: NoESAC: Not confirmedNot published6E
25Key HRKey HRQuote onlyCPEO: Not confirmedESAC: Not confirmedNot published6E
26MASMASQuote onlyCPEO: Not confirmedESAC: Not confirmedNot published6E
27Stitch PEOStitch (Redesign Health-backed)Quote onlyCPEO: Not confirmedESAC: Not confirmedNot published6E

How the Trust Score works

Six factors, all from public records or the PEO's own pages. Referral fees and partnerships are never inputs.

IRS CPEO certification30 pts
ESAC accreditation20 pts
Price transparency20 pts
Contract flexibility10 pts
Small-business access10 pts
Coverage10 pts

Full scoring rules

Rankings by situation

Price ranges, side by side

Sort by Trust Score or price. Pick up to three to line them up.

27 of 27 PEOs

PEO admin fee, per employee per month

Bars span the low-to-high range; a dot is a single published price. Admin fees only: benefits, workers' comp and state taxes are extra. Click a row to compare.

Published by the PEOThird-party estimateQuote onlyNo public figure
Justworks$79–$124
ADP TotalSource~$70–$200
Insperity~$150–$210
ExtensisHR~$40–$200
Engage PEO~$40–$160
TriNet~$80–$150
Paychex PEOQuote only—
Amplify HR~$100–$180
CoAdvantage~$120–$180
Sequoia OneQuote only—
Deel PEO$125
PrestigePEOQuote only—
Remote PEO$99
DecisionHRQuote only—
Group Management ServicesQuote only—
Infiniti HRQuote only—
QuestcoQuote only—
G&A PartnersQuote only—
Rippling PEO~$85
Vensure Employer SolutionsQuote only—
AdaptiveHRQuote only—
Fourth PEOQuote only—
Cornerstone PEOQuote only—
Employer Solutions GroupQuote only—
Key HRQuote only—
MASQuote only—
Stitch PEOQuote only—
$0$50$100$150$200$250

Rippling PEO adds a platform fee (about $35 plus $8 per user). Insperity reports an onboarding fee of about $500–$2,000.

Comparing 3
Justworks
ADP TotalSource
Insperity
Trust Score
100 / 100
77 / 100
77 / 100
Price
$79–$124/employee/moFlat PEPM
~$70–$200/employee/mo% of payroll or PEPM
~$150–$210/employee/mo% of payroll
Pricing
Published
Estimate
Estimate
Certification
CPEO: YesESAC: Yes
CPEO: YesESAC: Yes
CPEO: YesESAC: Yes
Minimum
None
5 employees
5 employees
Best fit
1–100 employees
10–200 employees
20–200 employees
Contract
Month-to-month
Multi-year terms reported
Annual
Coverage
National
National
National, 90+ offices
Industries
Tech and startups, Professional services
Professional services, Financial services
Professional services, Healthcare practices, Tech and startups
Strengths
Published pricing · Month-to-month, no implementation fee · CPEO certified and ESAC accredited
Scale and decades of payroll-tax infrastructure · Annual benefits benchmarking · CPEO and ESAC
Dedicated HR specialists · Deep training content · HRScale (Workday) for the mid-market
Watch out for
Per-employee cost doesn't fall with size · Limited reporting and leave tools
Payroll-based fees rise with raises · Long contracts reported · Underwriting may turn away high-risk industries
Premium price · Price increase reported in January 2026
Details

Head to head

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