Oasis PEO vs Paychex PEO
How the two PEOs compare on pricing, minimum employees and fit.
| Oasis PEO | Paychex PEO | |
|---|---|---|
| Company size | Being confirmed | About 19,000 employees (Paychex, 2025) |
| Headquarters | West Palm Beach, FL | Rochester, NY |
| Founded | Being confirmed | 1971 |
| Pricing | Quote-based. Applicant tracking and performance management cost extra. | No published PEO pricing. Quote required. |
| Pricing model | Quote only | Quote only |
| Best for | Growing small and mid-sized businesses with fewer than 49 employees (Oasis Outsourcing, now part of Paychex) | Smaller US businesses that want payroll and HR from one provider |
| IRS certified (CPEO) | Yes, on the IRS list | Yes, on the IRS list |
| ESAC accreditation | Accredited | Accredited |
| Minimum employees | 5 employees | 5 employees |
Carriers, 401(k) and workers' comp: side by side
| Oasis PEO | Paychex PEO | |
|---|---|---|
| Health carriers | Not publicly listed yet. We will get this for you: request a quote and we will include it. | Not publicly listed yet. We will get this for you: request a quote and we will include it. |
| 401(k) provider | 401(k) and a Pooled Employer Plan (PEP) offered; provider not named Crazy Egg review · Third-party review | Not publicly listed yet. We will get this for you: request a quote and we will include it. |
| Workers' comp | Workers' compensation plans offered through Paychex Insurance Agency; carrier not named Crazy Egg review · Third-party review | Not publicly listed yet. We will get this for you: request a quote and we will include it. |
| Other named partners | Not publicly listed yet. We will get this for you: request a quote and we will include it. | Paychex acquired Oasis Outsourcing in 2018; carrier and 401(k) details not named in sources reviewed Clicksgeek review · Third-party review |
Due diligence checked November 4, 2026. We only list carriers and partners that a filing, the provider or a named review states. Many PEOs do not publish their carriers or recordkeepers, so "not publicly listed" means we could not find it, not that none exists. If something is missing, request a quote and we will get it from the PEO for you. Lineups vary by state and change at renewal. Source types: SEC filing (strongest), provider site, third-party review.
Questions to ask before you sign
- Which medical carriers and networks are available in my state and zip code?
- Are the health plans fully insured or partially self-funded, and who bears claims risk?
- Who is the 401(k) recordkeeper, and what are the total plan fees and match options?
- Who is the workers' comp carrier, how are rates set, and what happens to my experience rating if I leave?
- Is the entity that will employ my staff on the IRS CPEO list, and is it ESAC accredited?
- What renewal increase did your plans see in each of the last 3 years?
Choose Oasis PEO if
Growing small and mid-sized businesses with fewer than 49 employees (Oasis Outsourcing, now part of Paychex).
- Assigned payroll account manager and HR professional with 24-hour HR phone support
- IRS and ESAC accredited
- Workers' comp, cyber liability and employment practices liability coverage options
Choose Paychex PEO if
Smaller US businesses that want payroll and HR from one provider.
- ESAC and IRS accredited
- Payroll account manager and HR generalist support
- Multi-state payroll
Ask Oasis PEO about
- One-year minimum contract with 30 days' written notice to cancel, and an early termination fee may apply
- Interface described as dated
- Sources disagree on the minimum: one says five employees, another says none
Ask Paychex PEO about
- Five-employee minimum and a one-year contract reported
- Reported as weaker at larger scale
Frequently asked questions
Is Oasis PEO or Paychex PEO cheaper?
Oasis PEO: Quote-based. Applicant tracking and performance management cost extra. Paychex PEO: No published PEO pricing. Quote required. Published rates are not directly comparable to quote-only pricing, and health premiums are separate.
Which is better for a small company, Oasis PEO or Paychex PEO?
Oasis PEO is best for growing small and mid-sized businesses with fewer than 49 employees (oasis outsourcing, now part of paychex). Paychex PEO is best for smaller us businesses that want payroll and hr from one provider.
Last verified November 4, 2026. Based on third-party reviews and vendor pricing pages. See each provider page for sources.