Opensteer alternatives
TL;DR: 12 companies doing similar work to Opensteer in B2B, ranked by how closely they match what Opensteer 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 Opensteer. They are scored on how closely their own description overlaps with Opensteer's, and all facts shown come from the YC company records — nothing is estimated.
What are the best alternatives to Opensteer?
| Alternative | What it does | Batch | Team | Status |
|---|---|---|---|---|
| Fithub | — | Winter 2010 | — | Inactive |
| Insoshi | — | Winter 2008 | — | Inactive |
| Halluminate | Data and RL environments to automate knowledge work | Summer 2025 | 5 | Active |
| Zatanna | Turning all software into agent-first APIs | Winter 2026 | 2 | Active |
| Citus Data | Real-time. Big data. PostgreSQL | Summer 2011 | 45 | Acquired |
| Pollen | AI agents that automate customer success | Winter 2026 | 3 | Active |
| Maritime | The managed cloud for AI agents. | Fall 2026 | 3 | Active |
| Sponge | Financial infrastructure for the agent economy | Winter 2026 | 3 | Active |
| Haystack | Replay real customer journeys against every change before you ship | Summer 2024 | 2 | Active |
| OpenSpec | Plan mode for complex features | Winter 2026 | — | Active |
| Optilly/Installmonetizer | Fb ad optimization platform | Winter 2012 | 11 | Inactive |
| Brushes | iPad drawing software. | Summer 2010 | — | Inactive |
Is Opensteer still active?
Opensteer 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 Opensteer. They are then ranked on how closely their own description overlaps with Opensteer's, so the closest matches come first rather than whoever happens to share a tag.