Nextiva vs Five9
Side-by-side from the Top 11 rankings of The 11 Best VoIP Business Phone Systems (2026) and The 11 Best Call Center Software Platforms (2026). Last verified June 16, 2026.
The short answer
Five9 ranks higher on Top 11 (#1 vs #1) for Small businesses replacing landlines with cloud phone systems / Support and sales teams running inbound or outbound call centers. A top-tier, reliable platform with powerful AI tools for large-scale call centers.
At a glance
| Nextiva | Five9 | |
|---|---|---|
| Top 11 rank | #1 / The 11 Best VoIP Business Phone Systems (2026) | #1 / The 11 Best Call Center Software Platforms (2026) |
| Score (out of 9.4) | 9.3 | 9.3 |
| Best for | Best overall for reliability and support | Enterprise AI & reliability |
| Pricing | $$ ($24 to $40/user/mo) | $$$$ ($149 to $229+/mo) |
| HQ | Scottsdale, USA | San Ramon, USA |
| Founded | 2006 | 2001 |
Nextiva
Top choice for its exceptional 99.999% uptime, comprehensive features, and highly-rated US-based customer support.
www.nextiva.comSee full entry in The 11 Best VoIP Business Phone Systems (2026)
Five9
A top-tier, reliable platform with powerful AI tools for large-scale call centers.
www.five9.comSee full entry in The 11 Best Call Center Software Platforms (2026)
Methodology and scoring weights live at /methodology. No vendor pays for placement — see about.