PEOs and staffing agencies both involve a third party in the employment relationship — but they serve completely different purposes. PEOs co-employ YOUR existing workforce for HR offload; staffing agencies provide workers FROM THE AGENCY for short-term or specialized assignments.
| PEO | Staffing agency | |
|---|---|---|
| Who sources workers | Client sources and selects | Agency sources and provides |
| Length of arrangement | Long-term, ongoing | Short-term, project-based |
| Direction of work | Client directs daily | Often shared between agency and client |
| Purpose | HR offload, benefits, comp pool | Flexible workforce capacity |
| Pricing | PEPM on your workforce | Bill rate (typically wage + 25–60% markup) |
| Workforce ownership | These are YOUR employees, co-employed | These are agency employees, leased to you |
PEO wins when: you have an existing or growing W-2 workforce you want to keep but offload HR for.
Staffing agency wins when: you need temporary workforce, project-based labor, or to test workers before direct hire.
PEO and staffing serve completely different needs. They're not really competing — many businesses use both: PEO for core workforce, staffing for surge or specialized capacity.
PEO wins when: you have an existing or growing W-2 workforce you want to keep but offload HR for.
Staffing agency wins when: you need temporary workforce, project-based labor, or to test workers before direct hire.
PEO and staffing serve completely different needs. They're not really competing — many businesses use both: PEO for core workforce, staffing for surge or specialized capacity.
All PEO comparison guides — every alternative we cover side-by-side.
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