Docker alternatives
TL;DR: 12 companies doing similar work to Docker in B2B, ranked by how closely they match what Docker 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 Docker. They are scored on how closely their own description overlaps with Docker's, and all facts shown come from the YC company records — nothing is estimated.
What are the best alternatives to Docker?
| Alternative | What it does | Batch | Team | Status |
|---|---|---|---|---|
| Fithub | — | Winter 2010 | — | Inactive |
| Insoshi | — | Winter 2008 | — | Inactive |
| Parasma | Replacing GPUs with human brain cells | Summer 2026 | 2 | Active |
| primitive | communication for agents | Spring 2026 | 4 | Active |
| Dialogus | voice AI agents that learn how your company actually works | Summer 2026 | 3 | Active |
| Proxino | Javascript proxy. | Summer 2011 | — | Inactive |
| Firebase | Build and grow iOS, Android, and Web apps. | Summer 2011 | 500 | Acquired |
| PhoneSys | The Phone System for Sales Teams. | Summer 2011 | 4 | Inactive |
| Korso | In Development | Spring 2026 | 3 | Active |
| BookSolid | BookSolid is the opentable for tour operators. | Winter 2012 | — | Inactive |
| Orgo | Computers for Agents | Fall 2026 | — | Active |
| Heroku | Enabling developers to build and run applications in the cloud. | Winter 2008 | 300 | Acquired |
Is Docker still active?
Docker 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 Docker. They are then ranked on how closely their own description overlaps with Docker's, so the closest matches come first rather than whoever happens to share a tag.