The short answer
Both PEOs price by quote. ADP TotalSource, an IRS-certified PEO run by ADP, assigns a dedicated HR business partner and bundles payroll, benefits, workers' compensation and compliance.
LeadChange Score: editorial assessment based on public information.
ADP TotalSource wins 0TriNet wins 22 ties
| Dimension | ADP TotalSource | TriNet |
|---|---|---|
| PricingBoth price by quote. TriNet charges a flat per-employee administrative fee, with benefit premiums and payroll taxes billed separately. Quote only | Quote only | Quote only |
| CapabilitiesADP TotalSource covers payroll and tax, benefits, workers' compensation, HR compliance, recruiting, onboarding and analytics. TriNet covers PEO and ASO plans, payroll and tax, benefits, compliance, time and attendance, performance and recruiting. Payroll and tax administration, Benefits administration, Workers' compensation and risk management, HR compliance, Talent acquisition, Onboarding, Analytics and reporting | 9 of 10 core capabilities | 9 of 10 core capabilities |
| IntegrationsTriNet lists 12 integrations, including QuickBooks Online, NetSuite, Xero, Sage Intacct and BambooHR, and offers an API. ADP TotalSource publishes no integration list on the pages we reviewed. 12 | 2 documented | 12 native |
| SecurityTriNet states SOC 2 Type II and HIPAA and supports single sign-on. ADP TotalSource is less suited to buyers who need a named certification on the PEO's own pages. Yes | None verified | SOC 2 |
| Attribute | ADP TotalSource | TriNet |
|---|---|---|
| Pricing model | Quote only | Per employee |
| Mobile apps | ADP mobile app | TriNet mobile app (pay stubs, time off) |
| Support channels | Dedicated HR business partner, ADP MyLife Advisors (employee support) | Phone, Online, Advisory support (HR Plus), Dedicated support (HR Plus) |
| Founded | 1949 | 1988 |
| Headquarters | Roseland, New Jersey, US | Dublin, California |
| Attribute | ADP TotalSource | TriNet |
|---|---|---|
| Price transparency | Quote only | Quote only |
| Best for | Small businesses, mid-market companies | Small businesses, mid-market companies |
| Automatic tax filing | ||
| Ownership | Publicly traded | Publicly traded |
Pricing. Both price by quote. TriNet charges a flat per-employee administrative fee, with benefit premiums and payroll taxes billed separately.
Capabilities. ADP TotalSource covers payroll and tax, benefits, workers' compensation, HR compliance, recruiting, onboarding and analytics. TriNet covers PEO and ASO plans, payroll and tax, benefits, compliance, time and attendance, performance and recruiting.
Integrations. TriNet lists 12 integrations, including QuickBooks Online, NetSuite, Xero, Sage Intacct and BambooHR, and offers an API. ADP TotalSource publishes no integration list on the pages we reviewed.
Fit and support. ADP TotalSource assigns a dedicated HR business partner and offers ADP MyLife Advisors to employees. TriNet offers phone and online support, with dedicated support on HR Plus.
Security. TriNet states SOC 2 Type II and HIPAA and supports single sign-on. ADP TotalSource is less suited to buyers who need a named certification on the PEO's own pages.
Justworks has the highest LeadChange Score in PEO Services after excluding these two (9.7/10).
From $79/employee/mo (PEO Basic plan)
It depends on the company. TriNet focuses on healthcare, technology and finance and offers an ASO option without co-employment; ADP TotalSource assigns a dedicated HR business partner and adds recruiting tools.
ADP TotalSource is ADP's PEO: it co-employs your staff and has been an IRS-certified PEO since 2017.
Yes. ADP TotalSource is ADP's current PEO, covering payroll, benefits, workers' compensation and HR compliance in all 50 states.
Both quote their prices. TriNet charges a flat per-employee administrative fee and bills benefit premiums and payroll taxes separately.
Yes, both include workers' compensation.
Only TriNet states SOC 2 Type II and HIPAA (BAA).
ADP TotalSource ranks #9 of 24 in our PEO services ranking. Besides TriNet, the highest-scored are Justworks, PrestigePEO, and Amplify HR. Every alternative, matched to the reason you might switch: ADP TotalSource alternatives.
Your team size, what matters most and your role: see which one fits more of your answers, from verified facts and list prices. Then, if you like, ask to hear from both.
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What the LeadChange Score means
A 0–10 editorial assessment built only from verified facts, across six weighted dimensions: capabilities, pricing, integrations, security, fit and support, and data confidence.
Payments, commissions and lead fees are never inputs.
