Oasis PEO vs TriNet
How the two PEOs compare on pricing, minimum employees and fit.
| Oasis PEO | TriNet | |
|---|---|---|
| Company size | Being confirmed | 3,622 employees (2019) |
| Headquarters | West Palm Beach, FL | Dublin, CA |
| Founded | Being confirmed | 1988 |
| 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) | Companies in TriNet's core industries that want industry-specific packages |
| IRS certified (CPEO) | Yes, on the IRS list | Yes, on the IRS list |
| ESAC accreditation | Accredited | Not confirmed |
| Minimum employees | 5 employees | 5 employees |
Carriers, 401(k) and workers' comp: side by side
| Oasis PEO | TriNet | |
|---|---|---|
| Health carriers | Not publicly listed yet. We will get this for you: request a quote and we will include it. | Plans sponsored through a broad range of carriers; none named |
| 401(k) provider | 401(k) and a Pooled Employer Plan (PEP) offered; provider not named | TriNet-managed 401(k); recordkeeper not named |
| Workers' comp | Workers' compensation plans offered through Paychex Insurance Agency; carrier not named | Fully insured through policies negotiated with third-party carriers; carriers not named |
| Other named partners | Not publicly listed yet. We will get this for you: request a quote and we will include it. | Healthee powers the Personal Health Assistant |
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 Many PEOs do not publish their carriers or recordkeepers, so "not publicly listed" means we could not find it, not that none exists.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.
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 TriNet if
Companies in TriNet's core industries that want industry-specific packages.
- Broad access to major health carriers
- Industry-specific PEO packages
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 TriNet about
- Requires a minimum of five employees
- Reviewers report escalating renewal pricing
- Does not support hazardous industries such as heavy construction
Frequently asked questions
Is Oasis PEO or TriNet cheaper?
Oasis PEO: Quote-based. Applicant tracking and performance management cost extra. TriNet: 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 TriNet?
Oasis PEO is best for growing small and mid-sized businesses with fewer than 49 employees (oasis outsourcing, now part of paychex). TriNet is best for companies in trinet's core industries that want industry-specific packages.
Last verified November 4, 2026. Based on third-party reviews and vendor pricing pages. See each provider page for sources.