Threadable alternatives
TL;DR: 12 companies doing similar work to Threadable in B2B, ranked by how closely they match what Threadable 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 Threadable. They are scored on how closely their own description overlaps with Threadable's, and all facts shown come from the YC company records — nothing is estimated.
What are the best alternatives to Threadable?
| Alternative | What it does | Batch | Team | Status |
|---|---|---|---|---|
| Snapboard | — | Winter 2020 | 2 | Inactive |
| Insoshi | — | Winter 2008 | — | Inactive |
| Thinkature | — | Summer 2006 | — | Inactive |
| Acunote | — | Winter 2011 | — | Active |
| ZeroMailer | Easy mailing lists | Summer 2012 | 2 | Acquired |
| Post.fm | New email inbox. | Summer 2010 | — | Inactive |
| Emailio | Email built for wellness | Winter 2014 | 5 | Active |
| ZumoDrive | Media in the cloud | Summer 2007 | 15 | Acquired |
| Fithub | — | Winter 2010 | — | Inactive |
| Team Apart | — | Summer 2008 | 2 | Inactive |
| Retool | Build internal tools fast. | Winter 2017 | 300 | Active |
| Rapportive | Add profiles to email. | Summer 2010 | 2 | Acquired |
Is Threadable still active?
Threadable is no longer listed as active, so anyone still relying on it should plan a migration to one of the alternatives above.
How was this list put together?
Every company here is Y Combinator-backed and shares at least one category with Threadable. They are then ranked on how closely their own description overlaps with Threadable's, so the closest matches come first rather than whoever happens to share a tag.