TriNet vs Justworks
Best for
SMBs that want to outsource HR, payroll, benefits and compliance through a full-service PEO.
Small-to-mid U.S. businesses wanting an all-in-one PEO with payroll, big-company benefits and compliance.
Strong when
Enterprise-grade benefits, multi-state hiring and compliance support and a full-service co-employment model are priorities, especially in TriNet's target verticals.
Access to large-group benefits, minimal HR admin, human support and simple flat per-employee pricing are priorities.
Validate before buying
Pricing is quote-only, worksite-employee counts declined year over year in FY2025, and the co-employment model may not suit buyers wanting to retain full employer control (mitigated by HR Plus).
Reviewers cite reporting depth and occasional service inconsistency; the PEO is U.S.-only and best suited to smaller teams.
Pricing
Custom and quote-only; no public list pricing.
Published flat per-employee-per-month with no setup fees or annual contract.
Implementation
Onboarding via the TriNet platform with managed multi-state payroll-tax setup.
Self-service onboarding with no advertised setup or implementation charges.
Employees
1001-5000
1001-5000
Headquarters
Dublin, California
New York, New York
Founded
1988
2012
Categories
PEO(Professional Employer Organization)HCM
PEO(Professional Employer Organization)Payroll
Core capabilities
PEO / co-employmentPayroll and payroll taxBenefits administrationHealth benefits and retirementCompliance and risk mitigationHR expertise and platformWorkforce analyticsMulti-state and global HR
Payroll and tax filingPEO / co-employmentBenefits administration401(k), HSA and FSAWorkers' comp and complianceHR onboarding and PTOTime trackingEOR / global hiring
Decision snapshots reflect verified profiles where available. TriNet · Justworks