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

IRS-certified PEO (CPEO) rankings, 2026

These PEOs appear on the IRS active CPEO list dated Aug 7, 2026. Certification earns the largest single block of the Trust Score.

Data compiled by the PEOranked Research TeamScores updated Oct 27, 2026
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
11PrestigePEOTriSpan (majority since 2021)Quote onlyCPEOESAC: Not confirmedNot published42D
12DecisionHRDecisionHRQuote onlyCPEOESAC: Not confirmedNot published36D
13Group Management ServicesGMSQuote onlyCPEOESAC: Not confirmedNot published36D
14Infiniti HRInfiniti HRQuote onlyCPEOESAC: Not confirmedNot published36D
15QuestcoLightBay Capital-backedQuote onlyCPEOESAC: Not confirmedNot published36D

Compare these PEOs

15 of 15 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—
PrestigePEOQuote only—
DecisionHRQuote only—
Group Management ServicesQuote only—
Infiniti HRQuote only—
QuestcoQuote 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

Questions buyers ask

What does CPEO certification do for my business?

A certified PEO is solely liable for federal employment taxes on the wages it pays, and your Social Security wage base doesn't reset when you join or leave mid-year.

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