# ADP TotalSource
> ADP TotalSource is a Professional Employer Organization (PEO) that operates under a co-employment model. It provides comprehensive HR management, including payroll, benefits administration, regulatory compliance, and risk management for small to mid-sized businesses. As an industry leader, it leverages the scale of its parent company, ADP, to offer small businesses access to large-group insurance and benefits.
- URL: https://optimly.ai/brand/adp-totalsource
- Slug: adp-totalsource
- BAI Score: 88/100
- Archetype: Challenger
- Category: Human Resources Services
- Last Analyzed: April 10, 2026
- Part of: ADP (Automatic Data Processing, Inc.) (https://optimly.ai/brand/adp-automatic-data-processing-inc)
## Competitors
- Insperity (https://optimly.ai/brand/insperity)
- TriNet (https://optimly.ai/brand/trinet)
## Also Referenced By
- Justworks (https://optimly.ai/brand/justworks)
- Peo Professional Employer Organization (https://optimly.ai/brand/peo-professional-employer-organization)
## Buyer Intent Signals
Problems: In-house HR/Payroll Staffing: Internal HR and payroll teams managing compliance, benefits, and taxes manually using spreadsheets and internal software. | Local HR Consultants: Small-scale local HR consultants who handle specific compliance or handbook tasks on a project basis.
Solutions: Best PEO for small business | Professional Employer Organization reviews | Outsourced HR and payroll services | HR software with best UI | Co-employment service providers | Standalone Payroll Software (e.g., ADP Run/Workforce Now): Using standard payroll software without the co-employment or outsourced benefits administration of a PEO.