Odo alternatives
TL;DR: 12 companies doing similar work to Odo in B2B, ranked by how closely they match what Odo 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 Odo. They are scored on how closely their own description overlaps with Odo's, and all facts shown come from the YC company records — nothing is estimated.
What are the best alternatives to Odo?
| Alternative | What it does | Batch | Team | Status |
|---|---|---|---|---|
| Fithub | — | Winter 2010 | — | Inactive |
| Insoshi | — | Winter 2008 | — | Inactive |
| Mailgun | Email API service. | Winter 2011 | 51 | Acquired |
| Optilly/Installmonetizer | Fb ad optimization platform | Winter 2012 | 11 | Inactive |
| Mailwarm | Prevents your emails from landing in spam. | Summer 2020 | 10 | Active |
| Asakana | AI order entry for food distributors: emails and texts to ERP | Fall 2026 | 4 | Active |
| Userfox | User retention as a service. Drip email | Winter 2011 | 2 | Inactive |
| Brushes | iPad drawing software. | Summer 2010 | — | Inactive |
| Firebase | Build and grow iOS, Android, and Web apps. | Summer 2011 | 500 | Acquired |
| Realm | Better data structures = no DB. | Summer 2011 | 51 | Acquired |
| inDinero | Financial dashboard for businesses. | Summer 2010 | 250 | Active |
| GiveSpark | Givespark was a celebrity charity fundraising platform | Winter 2012 | 1 | Inactive |
Is Odo still active?
Odo 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 Odo. They are then ranked on how closely their own description overlaps with Odo's, so the closest matches come first rather than whoever happens to share a tag.