Harbor alternatives
TL;DR: 12 companies doing similar work to Harbor in Healthcare, ranked by how closely they match what Harbor 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 Harbor. They are scored on how closely their own description overlaps with Harbor's, and all facts shown come from the YC company records — nothing is estimated.
What are the best alternatives to Harbor?
| Alternative | What it does | Batch | Team | Status |
|---|---|---|---|---|
| Atlas Discovery | AI-native pharma company | Summer 2026 | 3 | Active |
| Care GP | AI agents to run primary healthcare operations | Summer 2026 | 10 | Active |
| Nxtcure Labs | The full-stack AI CRO for drug discovery. | Fall 2026 | — | Active |
| Framewise Health | AI-native patient engagement | Spring 2026 | 2 | Active |
| Sunflower | We are building an AI-native telemedicine clinic for addiction. 🌻 | Summer 2026 | 15 | Active |
| Reverie Labs | Engineering next-generation, brain-penetrant cancer therapies. | Winter 2018 | 29 | Inactive |
| Hubble | AI-native retrieval engine for medical records | Summer 2026 | 2 | Active |
| Comprehend | SaaS to increase speed and quality of clinical trials. | Winter 2011 | 51 | Acquired |
| Loop Genomics | Novel long-read DNA sequencing technology | Winter 2016 | 7 | Acquired |
| Clara | AI primary care doctor | Spring 2026 | 9 | Active |
| Numerion Labs | Artificial intelligence for drug discovery. | Winter 2015 | 67 | Active |
| Radley | The AI-native radiology practice | Summer 2026 | 2 | Active |
Is Harbor still active?
Harbor 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 Harbor. They are then ranked on how closely their own description overlaps with Harbor's, so the closest matches come first rather than whoever happens to share a tag.