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Head-to-head · PEO Software

Stratum PEO vs PRO Software

  • Updated Sep 2026
  • Both researched from official sources
  • 7 checks side by side
Higher score Stratum PEO #4 in PEO Software 7.8/10 Paid ✓ 6 of 6 features Visit Stratum PEO
PRO Software #5 in PEO Software 7.1/10 Pricing on request ✓ 3 of 6 features Visit PRO Software

Stratum PEO leads on 3 checks, PRO Software on 0, and 4 are even. Who comes out ahead on the 7 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreStratum PEO · 7.8/10
  • Most featuresStratum PEO · 6 of 6

Stratum PEO scores higher on our rubric for peo software: 7.8 against 7.1 out of 10; our editors rank them #4 and #5.

Stratum PEO offers client company portal; PRO Software doesn't publish it. Stratum PEO offers benefits enrollment; PRO Software doesn't publish it. Stratum PEO offers hr onboarding; PRO Software doesn't publish it.

Stratum PEO is the better fit for large PEOs needing deep compliance operations. PRO Software is the better fit for mid-market PEOs wanting extensive HR integrations.

  • Stratum PEO fits best

    Large PEOs needing deep compliance operations

  • PRO Software fits best

    Mid-market PEOs wanting extensive HR integrations

Advertiser disclosure: iTechGuides is reader-supported. We may earn a commission when you click some links. It never changes our verdict. How we rank.

Side by side

Feature Stratum PEO 7.8/10 Visit ↗ PRO Software 7.1/10 Visit ↗
At a glance
Editor score 7.8 7.1
Ranking #4 in PEO Software #5 in PEO Software
Best for Large PEOs needing deep compliance operations Mid-market PEOs wanting extensive HR integrations
Pricing model Paid Paid
Starting price Not published Not published
Free plan — —
Free trial — —
Deployment Self-hosted, Cloud Cloud
Platforms Web, iOS, Android Web
Integrations 9 integrations 15 integrations
Built for Small business, Mid-market, Enterprise Mid-market, Enterprise
Features Stratum PEO 6/6 · PRO Software 3/6
Client company portal ✓ (best) Not published
Payroll and tax admin ✓ ✓
Benefits enrollment ✓ (best) Not published
Compliance tools ✓ ✓
Employee self-service ✓ ✓
HR onboarding ✓ (best) Not published
Our review
Pros
  • 50-state and D.C. payroll tax engine with local tax resolution
  • Benefits, leave, onboarding, compliance, workers’ compensation, and CRM modules
  • Self-hosted perpetual license with no per-employee or seat fees
  • Covers payroll, benefits, time, performance and expense workflows
  • Native AI supports payroll, benefits, HR, reconciliation and reporting
  • Integrates with recruiting, retirement, tax, timekeeping and finance tools
Cons
  • Starting price of $150,000 raises the entry barrier
  • Current tax tables and compliance rules require an annual subscription
  • Broad module coverage may exceed the needs of narrowly focused operators
  • Pricing requires a contact-sales conversation
  • Web-only delivery may not suit teams needing other deployment options
  • Employee self-service relies on associated integrations
Our verdict

Stratum PEO is a workforce-management platform for professional employer organizations, administrative services organizations, domestic EORs, staffing agencies, and CPA firms. Its scope spans payroll and tax processing, benefits…

Read the review →

PRO Software is a cloud-based platform for professional employer organizations and administrative services organizations. It brings payroll processing, benefits administration, employee management, time and attendance, performance…

Read the review →
  1. Stratum PEOPEO Software 7.8Paid
  2. PRO SoftwarePEO Software 7.1Pricing on request

Strengths and trade-offs

  • Stratum PEO — where it wins

    • 50-state and D.C. payroll tax engine with local tax resolution
    • Benefits, leave, onboarding, compliance, workers’ compensation, and CRM modules
    • Self-hosted perpetual license with no per-employee or seat fees

    Where it doesn't

    • Starting price of $150,000 raises the entry barrier
    • Current tax tables and compliance rules require an annual subscription
    • Broad module coverage may exceed the needs of narrowly focused operators

  • PRO Software — where it wins

    • Covers payroll, benefits, time, performance and expense workflows
    • Native AI supports payroll, benefits, HR, reconciliation and reporting
    • Integrates with recruiting, retirement, tax, timekeeping and finance tools

    Where it doesn't

    • Pricing requires a contact-sales conversation
    • Web-only delivery may not suit teams needing other deployment options
    • Employee self-service relies on associated integrations

More comparisons

All PEO software comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Sep 2026

Last updated · How we research and update