Best PEO Software in 2026
Updated
In short: Stratum PEO is ranked #1 of 8 as of 3 October 2026, ahead of PHRBO PEO Software and TriNet PEO Technology Platform. The lowest first paid tier on this page is PHRBO PEO Software at $8/mo.
When choosing PEO software, weigh the employee and client-company tasks your team needs to manage. The ranked options are compared on benefits enrollment, payroll and tax administration, compliance tools, and HR onboarding; employee self-service and a client company portal can help distinguish how each supports day-to-day workflows. Check free-plan availability and paid starting price alongside those functions. Stratum PEO, PHRBO PEO Software and TriNet PEO Technology Platform are among the eight entries. The options also include PrismHR HCM Benefits Enrollment, VensureONE, Paychex PEO, PRO Software and PEOAdmin. Focus on the capabilities that match your HR processes, then compare the available choices on those dimensions.
8 PEO software ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
| # | Platform | Score | Why | From | Free plan | Paid from | Client company portal | |
|---|---|---|---|---|---|---|---|---|
| 1 |  Stratum PEO | 6.8 | RecognisedAPIDocumented | $750/mo | No | — | Yes | View |
| 2 |  PHRBO PEO Software | 6.7 | RecognisedAPIDocumented | $8/mo | No | — | Yes | View |
| 3 |  TriNet PEO Technology Platform | 6.7 | RecognisedAPIDocumented | — | No | — | Yes | View |
| 4 |  PrismHR HCM Benefits Enrollment | 5.4 | RecognisedAPIDocumented | — | — | — | Yes | View |
| 5 |  VensureONE | 5.4 | RecognisedAPIDocumented | — | No | — | Yes | View |
| 6 | Paychex PEO | 5.3 | RecognisedAPIDocumented | — | No | — | Yes | View |
| 7 |  PRO Software | 5.3 | RecognisedAPIDocumented | — | No | — | — | View |
| 8 |  PEOAdmin | 4.6 | RecognisedAPIDocumented | — | — | — | — | View |
Is your platform on this list?
Numbered spots on this list can be sponsored. They are labelled, and the editorial order and scores never change for payment.
Questions about this list
Which PEO software is ranked first on Inferse?
Stratum PEO is ranked #1 of 8 with a score of 6.8. PHRBO PEO Software is second and TriNet PEO Technology Platform third.
How many of these have a free plan?
0 of the 8 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, PHRBO PEO Software has the lowest first paid tier we found: $8/mo.
How is this list ranked?
Ranked on what each maker publishes, open and connectable first: a public API, open-source code, the depth of its documentation and a free tier to try it on. Model lists are sorted by the figure in their title, exactly as each provider publishes it. Paid placements never change a rank.