Post.fm alternatives
TL;DR: 12 companies doing similar work to Post.fm in B2B, ranked by how closely they match what Post.fm 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 Post.fm. They are scored on how closely their own description overlaps with Post.fm's, and all facts shown come from the YC company records — nothing is estimated.
What are the best alternatives to Post.fm?
| Alternative | What it does | Batch | Team | Status |
|---|---|---|---|---|
| Rapportive | Add profiles to email. | Summer 2010 | 2 | Acquired |
| Xobni | — | Summer 2006 | 11 | Acquired |
| Glider | We filter distracting emails away from your inbox. | Winter 2012 | 2 | Inactive |
| Snapboard | — | Winter 2020 | 2 | Inactive |
| Insoshi | — | Winter 2008 | — | Inactive |
| Thinkature | — | Summer 2006 | — | Inactive |
| Acunote | — | Winter 2011 | — | Active |
| Front | Customer communications hub for building strong relationships | Summer 2014 | 385 | Active |
| ZeroMailer | Easy mailing lists | Summer 2012 | 2 | Acquired |
| Polymail | Email productivity platform for business. | Summer 2016 | 2 | Acquired |
| reMail | Email search for iPhone. Acquired by Google in Feb 2010. | Winter 2009 | 1 | Acquired |
| MailTime | Emails as quick and easy as text messaging. | Winter 2016 | 18 | Active |
Is Post.fm still active?
Post.fm 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 Post.fm. They are then ranked on how closely their own description overlaps with Post.fm's, so the closest matches come first rather than whoever happens to share a tag.