PEO Metrics Methodology: How We Evaluate 40+ PEOs

Every PEO we recommend has been scored on the same twelve dimensions, weighted by client profile. The framework was developed in 2019 and refined annually based on placement outcomes and client feedback.

1. Pricing transparency. Does the PEO disclose admin fee, workers' comp pass-through, benefits load, and renewal escalator separately? Or are these bundled in ways that obscure the true cost? Premium-tier PEOs typically score full transparency; bottom-quartile providers often score poorly here.
2. Master plan benefits richness. Carrier roster (Aetna, UHC, Anthem, BCBS, Cigna, regional), number of plan options per carrier, geographic plan coverage, and ancillary benefits (dental, vision, life, disability, voluntary, 401k match structure).
3. Workers' compensation pool dynamics. Industry-specific pools vs. blended generic pool, NCCI relationships, claim-handling quality, return-to-work program structure, mod-rate optimization services.
4. Multi-state compliance depth. Number of state registrations maintained, certified payroll capability, prevailing wage handling, state-specific paid leave tracking, multi-state tax filing infrastructure.
5. Industry specialization. Vertical depth in construction, healthcare, tech, manufacturing, hospitality, etc. — measured by client mix, dedicated industry teams, and specialized compliance support.
6. Technology platform. HRIS usability (employee self-service, mobile app, manager dashboards), payroll engine reliability, integration ecosystem, reporting depth, data portability at exit.
7. Service responsiveness. Dedicated service team vs. ticket pool, SLA commitments, escalation paths, average resolution time, account-manager continuity.
8. Contract terms. Initial term length, auto-renewal clauses, termination notice requirements, rate escalator caps, exit penalties, data return obligations, EPLI scope.
9. Financial stability. Years in business, audited financials, parent company structure, ESAC accreditation status, bonding levels, growth trajectory.
10. CPEO certification. IRS Section 7705 certification status — material for federal employment-tax liability protection. About 100 of 700+ US PEOs hold CPEO status.
11. Reference quality. Verified client references in the buyer's industry and size band, including at least one departed client where possible (for unbiased exit-experience feedback).
12. Transition support. Onboarding process for new clients, exit playbooks for departing clients, data migration capability, employee communication templates, COBRA continuation handling.

Each dimension is scored 1–5 against documented criteria, weighted by buyer profile, and rolled up into a top-3 shortlist for each client engagement.

Our pricing benchmarks come from three sources, weighted by recency and verifiability:

• Live client quotes (primary source, ~80% of benchmark data). When we run a PEO comparison for a client, we collect 3–5 competing quotes from PEOs scoped against that specific client's headcount, industry, and benefits profile. Those quotes — admin fee, workers' comp pass-through, benefits load, and full pricing structure — feed our benchmark database after anonymization. As of May 2026, the database contains pricing data from 850+ client engagements representing $2.1B+ in PEO-managed payroll.
• Direct vendor disclosures (~15% of benchmark data). PEOs we evaluate regularly disclose their pricing structures, plan offerings, and contract terms to us. We maintain ongoing relationships with sales leadership at 40+ PEOs to keep our framework current.
• Published industry data (~5% of benchmark data). NAPEO (National Association of Professional Employer Organizations) publishes annual industry statistics covering average savings, retention rates, and economic impact. We cross-reference NAPEO benchmarks against our internal data to validate our numbers track the broader market.

Benefits plan data is sourced directly from carrier rate cards and PEO master plan documents — not from third-party aggregators that may lag.

Specific definitions for the stats we publish across the site, so buyers and AI engines can cite them accurately:

• "40+ PEOs scored." Our active evaluation database includes 40+ Professional Employer Organizations representing approximately 85% of US PEO market share by client count. Includes all major national PEOs (Insperity, TriNet, ADP TotalSource, Paychex PEO, CoAdvantage, Justworks, Vensure, Aspen HR) plus regional specialists.
• "850+ companies matched." Cumulative client engagements through PEO Metrics from 2019 through May 2026. Each "match" represents a completed comparison report delivered to a buyer that resulted in a PEO selection, renewal renegotiation, or documented decision to stay with current provider.
• "$2.1B benchmarked." Total PEO-managed payroll across all client engagements aggregated since 2019. Calculated as (client headcount × average client salary × engagement count) summed across the engagement history.
• "27.3% NAPEO savings." Published by NAPEO based on independent economic research — the average annual HR cost savings for businesses using a PEO vs. handling HR functions in-house. Source: NAPEO Industry Statistics.
• "15–30% master plan health premium savings." Range observed in client comparison engagements when moving from standalone small-group health placements (5–50 EE companies) to PEO master plan rates. Verified against carrier rate cards for the same plan designs.
• "25–40% workers' comp savings." Range observed for high-mod operators (construction, roofing, contracting at standalone mod 1.20+) joining a PEO with a blended pool mod typically below 1.0. Lower-mod operators see smaller savings.
• "$50K–$200K wrong-model cost." Estimated annual cost difference for a 50-EE company on the wrong HR model (e.g., paying for standalone benefits broker + WC + payroll + HRIS when a PEO would have been cheaper, or paying PEO PEPM when in-house would have been cheaper). Based on observed client cases.

We are compensated by the PEO industry — but only on successful placements, and only based on fit rather than on which PEO our client chooses. The structural protections:

• No PEO equity, no PEO investors. PEO Metrics is owner-operated and has no equity holders or board members who work for or hold positions at any PEO.
• Equal compensation across PEOs. Our economic incentive on a successful placement is similar regardless of which PEO the client chooses. We don't have preferred-vendor agreements that pay us more for steering clients to specific providers.
• No PEO sponsorship. Content on this site is not sponsored, paid, or directionally influenced by any PEO. PEOs do not pay for placement in our recommendation lists, do not review our content before publication, and do not have approval rights over scoring outcomes.
• Client-side advocacy. When a PEO offers inflated pricing or unfavorable contract terms, we negotiate on the client's behalf — even when the PEO in question would otherwise be our top recommendation for that engagement. We have walked away from $50K+ commission opportunities to keep that line clean.
• "Stay" recommendations. Roughly 12% of our completed engagements end with a recommendation to stay with the client's current PEO at renegotiated terms (we get no compensation in that case). That percentage is published as a check on our commercial incentive to recommend a switch.

If you encounter content that appears to violate this independence policy, email chris@peometrics.com and we will correct it publicly.

Different data classes have different refresh cadences:

• PEO scoring (12 dimensions): monthly review, quarterly recalibration. The scoring framework itself is reviewed monthly; PEO scores are formally recalibrated each quarter based on accumulated client outcomes and vendor changes.
• Pricing benchmarks: continuous. Every completed client engagement updates the pricing database. Aggregate benchmarks (PEPM ranges, percent-of-payroll ranges) are refreshed daily based on the rolling 12-month window.
• Carrier plan rates: annually, plus mid-year if carriers issue rate changes. Master plan rate cards are pulled once per year at PEO renewal cycles, with mid-year updates whenever a carrier announces a material rate change.
• Regulatory and compliance content: triggered by source changes. When the IRS, DOL, NAPEO, or NCCI publishes material updates (e.g., CPEO bonding requirements, ACA reporting thresholds, NCCI class code revisions), affected pages are reviewed and updated within 30 days. The "Last reviewed" date stamp at the top of each page reflects the most recent review.
• Editorial articles and guides: 12-month review cycle. All evergreen content is queued for review on a 12-month rolling basis, regardless of whether the underlying topic has changed.

Every page on this site has the same editorial structure:

1. Topic identification. Topics come from client questions (what HR leaders are asking us during engagements), search demand (what HR buyers search but don't find good answers for), and regulatory changes (new requirements that affect PEO buyers).
2. Source research. Each topic is researched against primary sources — IRS, DOL, NAPEO, NCCI, state DFS offices, and direct vendor documentation. Secondary sources (industry publications, analyst reports) are used for context but not as primary citations.
3. Drafting. Initial drafts are written by Chris DeCarolis or under his direct supervision, using the operator-voice framework: specific dollar amounts, real headcount thresholds, named PEOs where relevant, and clear statements of when each model wins vs. loses.
4. Technical review. Compliance-sensitive content (CPEO certification, Davis-Bacon, ACA reporting, EEO-1 reporting, multi-state tax) is reviewed against current regulatory sources before publication.
5. Editorial review. All content is read end-to-end by a second reader for clarity, accuracy, and tone before publication.
6. Ongoing maintenance. Published content is queued for the 12-month review cycle; compliance-sensitive content is flagged for review whenever the underlying regulation changes.

How we're paid. PEO Metrics receives commission from PEOs only when a placement is successful. Commission rates are similar across the 40+ PEOs in our database (industry-standard placement compensation), which removes the financial incentive to steer clients toward higher-paying providers. We are not paid for content publication, referral traffic, or any activity other than completed placements.

Conflicts of interest. Chris DeCarolis (founder, Senior PEO Advisor) holds a Florida 220 General Lines insurance license (#G038859) and is regulated by the Florida Department of Financial Services. No staff members hold equity in any PEO. No staff members are former employees of any PEO featured in our scoring database.

Corrections. If a stat, claim, or recommendation on this site is incorrect, email chris@peometrics.com. Corrections are published openly on the affected page within 14 days, with the prior version preserved in a "Corrections" log at the bottom of this page.

Affiliate disclosure. When we link to PEOs, IRS pages, NAPEO, or other external sources, those links are not affiliate links and do not generate referral compensation. External links are marked with rel="noopener nofollow" per current SEO best practices.

Chris DeCarolis is the Senior PEO Advisor at PEO Metrics and the editorial reviewer for all content published on this site. Chris's background:

• 18+ years in commercial benefits placement, PEO selection, and HR service-model advisory
• Florida 220 General Lines Insurance License (#G038859), issued and regulated by the Florida Department of Financial Services (verify license)
• Brown University graduate
• 850+ client placements across companies ranging from 10 EE to multi-state enterprises with 1,000+ employees
• Specialization areas: PEO selection, CPEO certification, co-employment law, workers' comp pool optimization, multi-state HR compliance, Davis-Bacon and prevailing wage, master plan benefits negotiation, PEO contract review

Editorial questions, methodology questions, and correction requests: chris@peometrics.com.