GBrain alternatives
TL;DR: 12 companies doing similar work to GBrain in B2B, ranked by how closely they match what GBrain 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 GBrain. They are scored on how closely their own description overlaps with GBrain's, and all facts shown come from the YC company records — nothing is estimated.
What are the best alternatives to GBrain?
| Alternative | What it does | Batch | Team | Status |
|---|---|---|---|---|
| Snapboard | — | Winter 2020 | 2 | Inactive |
| Insoshi | — | Winter 2008 | — | Inactive |
| Thinkature | — | Summer 2006 | — | Inactive |
| Acunote | — | Winter 2011 | — | Active |
| ZumoDrive | Media in the cloud | Summer 2007 | 15 | Acquired |
| Fithub | — | Winter 2010 | — | Inactive |
| Post.fm | New email inbox. | Summer 2010 | — | Inactive |
| 100x | Create, Share, and Monetize AI Agents | Summer 2022 | 3 | Active |
| Retool | Build internal tools fast. | Winter 2017 | 300 | Active |
| ZeroMailer | Easy mailing lists | Summer 2012 | 2 | Acquired |
| Emailio | Email built for wellness | Winter 2014 | 5 | Active |
| Clara Labs | Clara is a human-in-the-loop assistant that helps automate repetitive… | Summer 2014 | 20 | Acquired |
Is GBrain still active?
GBrain 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 GBrain. They are then ranked on how closely their own description overlaps with GBrain's, so the closest matches come first rather than whoever happens to share a tag.