CoAdvantage vs TriNet
How the two PEOs compare on pricing, minimum employees and fit.
| CoAdvantage | TriNet | |
|---|---|---|
| Company size | Being confirmed | 3,622 employees (2019) |
| Headquarters | Being confirmed | Dublin, CA |
| Founded | Being confirmed | 1988 |
| Pricing | Quote only. Reported at roughly $120 to $180 per employee per month by a third-party source. | No published PEO pricing. Quote required. |
| Pricing model | Quote only | Quote only |
| Best for | Companies that want a multi-state, multi-industry generalist PEO | 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 | Not confirmed | Not confirmed |
| Minimum employees | Not confirmed | 5 employees |
Carriers, 401(k) and workers' comp: side by side
| CoAdvantage | 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 | Not publicly listed yet. We will get this for you: request a quote and we will include it. | TriNet-managed 401(k); recordkeeper not named |
| Workers' comp | Not publicly listed yet. We will get this for you: request a quote and we will include it. | 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 Many PEOs do not publish their carriers or recordkeepers, so "not publicly listed" means we could not find it, not that none exists.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 CoAdvantage if
Companies that want a multi-state, multi-industry generalist PEO.
- Broad multi-state and multi-industry coverage
- Targets small and mid-sized businesses
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 CoAdvantage about
- Pricing is not published
- Reported as certified as a CPEO only since July 2026
- Minimum employee count not confirmed in sources reviewed
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 CoAdvantage or TriNet cheaper?
CoAdvantage: Quote only. Reported at roughly $120 to $180 per employee per month by a third-party source. 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, CoAdvantage or TriNet?
CoAdvantage is best for companies that want a multi-state, multi-industry generalist peo. 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.