ADP Run vs Paychex Flex
Side-by-side from the Top 11 ranking of Gusto vs Rippling vs QuickBooks Payroll: 11 Best Payroll Software for SMBs 2026. Last verified May 31, 2026.
The short answer
ADP Run ranks higher on Top 11 (#5 vs #6) for Small business owners running payroll without in-house HR. The SMB solution from an industry giant, offering unmatched reliability, compliance, and scalability.
At a glance
| ADP Run | Paychex Flex | |
|---|---|---|
| Top 11 rank | #5 / Gusto vs Rippling vs QuickBooks Payroll: 11 Best Payroll Software for SMBs 2026 | #6 / Gusto vs Rippling vs QuickBooks Payroll: 11 Best Payroll Software for SMBs 2026 |
| Score (out of 9.4) | 8.4 | 8.2 |
| Best for | Reliability and scalability | All-in-one HR services |
| Pricing | $$$ (Varies by quote) | $$$ (Varies by quote) |
| HQ | Roseland, USA | Rochester, USA |
| Founded | 1949 | 1971 |
ADP Run
The SMB solution from an industry giant, offering unmatched reliability, compliance, and scalability.
www.adp.com/what-we-offer/by-business-size/small-business.aspxSee full entry in Gusto vs Rippling vs QuickBooks Payroll: 11 Best Payroll Software for SMBs 2026
Paychex Flex
A comprehensive HR platform from an industry veteran, ideal for businesses needing more than just payroll.
www.paychex.com/paychex-flexSee full entry in Gusto vs Rippling vs QuickBooks Payroll: 11 Best Payroll Software for SMBs 2026
Methodology and scoring weights live at /methodology. No vendor pays for placement — see about.