Second alternatives
TL;DR: 12 companies doing similar work to Second in B2B, ranked by how closely they match what Second 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 Second. They are scored on how closely their own description overlaps with Second's, and all facts shown come from the YC company records — nothing is estimated.
What are the best alternatives to Second?
| Alternative | What it does | Batch | Team | Status |
|---|---|---|---|---|
| Fithub | — | Winter 2010 | — | Inactive |
| Insoshi | — | Winter 2008 | — | Inactive |
| Brushes | iPad drawing software. | Summer 2010 | — | Inactive |
| Versori | Agentic integrations & automations for enterprise | Winter 2023 | 16 | Acquired |
| Reflex | The operating system for building mission-critical enterprise apps. | Winter 2023 | 10 | Active |
| IcePanel | Design and explain complex software architecture. | Winter 2023 | 9 | Active |
| SolidStage | Sysadmin as a service. We make deploying, configuring, monitoring,… | Winter 2012 | — | Inactive |
| HelloSign | eSignature software for small and mid-market businesses. | Winter 2011 | 100 | Acquired |
| Rescale | High Performance Computing Built for the Cloud | Winter 2012 | 250 | Active |
| Swiftype | Smart search for the modern team. | Winter 2012 | 50 | Acquired |
| Citus Data | Real-time. Big data. PostgreSQL | Summer 2011 | 45 | Acquired |
| Bytebot | Bytebot is the open source container for AI desktop agents. | Summer 2021 | 3 | Acquired |
Is Second still active?
Second 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 Second. They are then ranked on how closely their own description overlaps with Second's, so the closest matches come first rather than whoever happens to share a tag.