Mezmo alternatives
TL;DR: 12 companies doing similar work to Mezmo in B2B, ranked by how closely they match what Mezmo actually does — not just by category.
How this list was built: every company here is Y Combinator-backed and shares at least one category with Mezmo. They are scored on how closely their own description overlaps with Mezmo's, and all facts shown come from the YC company records — nothing is estimated.
What are the best alternatives to Mezmo?
| Alternative | What it does | Batch | Team | Status |
|---|---|---|---|---|
| Fithub | — | Winter 2010 | — | Inactive |
| Insoshi | — | Winter 2008 | — | Inactive |
| PhoneSys | The Phone System for Sales Teams. | Summer 2011 | 4 | Inactive |
| Sherpa Labs | Frontier Data | Winter 2025 | 5 | Active |
| Korso | In Development | Spring 2026 | 3 | Active |
| GoScale | Dynamical Scaling Virtual Machines as a Service | Summer 2012 | 2 | Inactive |
| Magma | Monetize your agent's traces. | Summer 2026 | 1 | Active |
| Convox | Open-source tools for deploying, managing, and monitoring cloud… | Summer 2015 | 3 | Acquired |
| primitive | communication for agents | Spring 2026 | 4 | Active |
| Dialogus | voice AI agents that learn how your company actually works | Summer 2026 | 3 | Active |
| Cascade | Distilling Proprietary Intelligence | Winter 2026 | 2 | Active |
| Proxino | Javascript proxy. | Summer 2011 | — | Inactive |
Is Mezmo still active?
Mezmo is still operating, so switching is a choice rather than a forced migration. Compare on fit and price rather than urgency.
How was this list put together?
Every company here is Y Combinator-backed and shares at least one category with Mezmo. They are then ranked on how closely their own description overlaps with Mezmo's, so the closest matches come first rather than whoever happens to share a tag.