St. Louis is a major Midwestern economic center with a strong healthcare system, growing biotech sector, and significant financial services industry.
We compare 36 PEOs serving St. Louis (a 301K+ city), including Justworks, Rippling, ADP TotalSource, Insperity and TriNet, at no cost to you.
Key industries in St. Louis
Yes. PEO Consulting Partners is an independent PEO broker for employers in St. Louis, MO, at no cost to you. Which PEO actually fits a St. Louis business depends on your workers' compensation class codes, which here run heavily to healthcare, financial services and technology, on the Missouri employment rules that apply locally, and on whether you run payroll in more than one state.
St. Louis is a major Midwestern economic center with a strong healthcare system, growing biotech sector, and significant financial services industry.
Compliance note: St. Louis businesses often have employees across Missouri and Illinois, creating dual-state compliance complexity.
Key industries in St. Louis
Tell us your headcount, location, and current payroll setup. That's enough to get started on your St. Louis PEO comparison.
A consultant reaches out to learn more about your goals: benefits priorities, budget, implementation timeline.
We build a side-by-side comparison of the 3-5 PEOs best suited for your St. Louis business, with pricing and our recommendation.
Once you choose, we negotiate the contract and stay involved through implementation.
PEOs we compare for St. Louis businesses
Free, no-obligation comparison. We follow up same day.
For Missouri multi-state employers (especially KC metro), ADP's payroll bench is genuinely best-in-class. Worth the price for complexity.
Strong fit for Missouri SMBs already on Paychex payroll. Multi-state tax compliance is solid.
Houston-based but national reach. Strong service teams for Missouri mid-market professional services and healthcare.
The high-touch pick for Missouri mid-market employers (50+ employees) that want a dedicated HR business partner.
We place clients across Missouri, including Kansas City, St. Louis, Springfield, Columbia. The right PEO often varies by metro because of regional service-team coverage.
Yes. Any of the top-tier PEOs (ADP TotalSource, Insperity, Paychex PEO) handle the MO/KS border situation cleanly, single employer registration, dual-state tax remittance, and unified employee records. This is one of the strongest cases for using a PEO in the KC metro.
Yes for employers with 5+ employees (1+ in construction). A PEO's group workers comp arrangement covers your Missouri employees under the PEO's master policy, often at rates a single-employer subscriber couldn't access.
There is no Missouri rate to quote you. A 25 to 75 employee Missouri SMB is priced on headcount, states, workers' compensation class codes, industry and the benefits census. Only two PEOs on our panel publish a rate on their own website, Justworks (PEO Basic $79, PEO Plus $124 per employee per month) and Deel PEO (starting at $125); everyone else quotes per client. Insperity, Paychex PEO and CoAdvantage all quote per client, so the only fair comparison is several quotes on the same census with the admin fee, medical and workers comp separated.
Missouri does not separately license PEOs at the state level, federal CPEO status is the primary credential to verify. Always verify CPEO status on the IRS public list before signing.
Also serving businesses in Missouri
Looking for PEO options across all of Missouri? View our Missouri PEO broker page →