TriNet: what the public registries actually say

Two questions about any co-employer can be answered without speaking to a salesperson, and both are answered here before anything else. Does the federal government recognise the entity as a certified professional employer organization, and does an independent body verify that it funds the payroll taxes it collects. On the first, this provider appears on the register the tax authority publishes and updates; on the second, the accreditation directory lists it. Those two facts remove the failure mode that actually hurts clients — a provider that collects withholding and does not remit it — and they are the reason this page starts with registry status rather than with a feature list.

What certification does not do is tell you what the arrangement costs. Certification is a compliance status, not a price signal, and every provider on the register underwrites its fee against your own census: wage levels, state mix, claims history, and the benefit plan you select. The structural question worth asking on the first call is whether the administrative fee is expressed as a share of gross payroll or as a fixed amount per employee per month. A share of payroll rises automatically with every raise and every senior hire, which matters here because the client base skews toward high-wage technical and professional work. A per-head fee does not move with salary at all. Ask for both, run them across the hiring plan you actually intend to execute, and compare annual totals rather than headline rates.

Benefit access is the second reason companies choose this route and the hardest to compare. A master medical plan is rated on a population far larger than any single client, which is why a small employer can reach richer coverage than its own headcount would earn. The trade is renewal exposure you do not control and a plan design you cannot fully customise. Ask how the plan is rated at renewal, whether your own claims experience influences the rate, and what happens to coverage in the gap between leaving the arrangement and standing up your own policy. That last answer is the one people wish they had in writing.

How to check this yourself

Price the arrangement before the first call with the total employer cost model, read how each registry entry on this site is checked in the sourcing methodology, and see the same registry treatment applied to the Insperity fact page or the full provider register. Certification terminology is defined under what federal certification changes, the head-to-head sits at this two-provider comparison, and the wider surface starts at the co-employment hub. Software platforms that are sometimes mistaken for co-employers are covered in the Gusto classification answer.

What this doesn't cover

This page reports registry status and publicly stated service structure. It does not quote a rate, rank providers, publish medical premiums, which are underwritten on your own census and claims history, or accept payment for placement. Service quality, account-team responsiveness and implementation experience vary by client and are not measurable from public filings, so they are not claimed here. Where a status appears, the register that states it is linked beside it.