Compose alternatives
TL;DR: 12 companies doing similar work to Compose in B2B, ranked by how closely they match what Compose 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 Compose. They are scored on how closely their own description overlaps with Compose's, and all facts shown come from the YC company records — nothing is estimated.
What are the best alternatives to Compose?
| Alternative | What it does | Batch | Team | Status |
|---|---|---|---|---|
| Citus Data | Real-time. Big data. PostgreSQL | Summer 2011 | 45 | Acquired |
| Fithub | — | Winter 2010 | — | Inactive |
| Insoshi | — | Winter 2008 | — | Inactive |
| primitive | communication for agents | Spring 2026 | 4 | Active |
| Amiato | The BI bridge for unstructured data. We automatically bridge the gap… | Winter 2012 | 2 | Acquired |
| Sherpa Labs | Frontier Data | Winter 2025 | 5 | Active |
| InfluxData | The platform for building and operating time series applications. | Winter 2013 | 210 | Active |
| Captain | Self-tuning search for products and files | Winter 2026 | 2 | Active |
| Magma | Monetize your agent's traces. | Summer 2026 | 1 | Active |
| Dialogus | voice AI agents that learn how your company actually works | Summer 2026 | 3 | Active |
| Heroku | Enabling developers to build and run applications in the cloud. | Winter 2008 | 300 | Acquired |
| PhoneSys | The Phone System for Sales Teams. | Summer 2011 | 4 | Inactive |
Is Compose still active?
Compose has been acquired, which often means pricing, roadmap or support changes. That is the usual reason people start looking at this list.
How was this list put together?
Every company here is Y Combinator-backed and shares at least one category with Compose. They are then ranked on how closely their own description overlaps with Compose's, so the closest matches come first rather than whoever happens to share a tag.