Nullstone alternatives
TL;DR: 12 companies doing similar work to Nullstone in B2B, ranked by how closely they match what Nullstone 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 Nullstone. They are scored on how closely their own description overlaps with Nullstone's, and all facts shown come from the YC company records — nothing is estimated.
What are the best alternatives to Nullstone?
| Alternative | What it does | Batch | Team | Status |
|---|---|---|---|---|
| Fithub | — | Winter 2010 | — | Inactive |
| Insoshi | — | Winter 2008 | — | Inactive |
| Bryel | Devin for AI Research Engineering | Fall 2026 | 2 | Active |
| Proxino | Javascript proxy. | Summer 2011 | — | Inactive |
| Memorable | reducing agent reasoning into a graph search problem | Summer 2027 | 2 | Active |
| GoScale | Dynamical Scaling Virtual Machines as a Service | Summer 2012 | 2 | Inactive |
| primitive | communication for agents | Spring 2026 | 4 | Active |
| Omnara | The Open-Source Alternative to Claude Managed Agents | Summer 2025 | 4 | Active |
| PhoneSys | The Phone System for Sales Teams. | Summer 2011 | 4 | Inactive |
| Aptible | The No Infrastructure Platform as a Service | Summer 2014 | 25 | Acquired |
| Convox | Open-source tools for deploying, managing, and monitoring cloud… | Summer 2015 | 3 | Acquired |
| GitCafe | The Git forge for the next hundred billion commits | Summer 2026 | 1 | Active |
Is Nullstone still active?
Nullstone 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 Nullstone. They are then ranked on how closely their own description overlaps with Nullstone's, so the closest matches come first rather than whoever happens to share a tag.