Assemble alternatives
TL;DR: 12 companies doing similar work to Assemble in B2B, ranked by how closely they match what Assemble 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 Assemble. They are scored on how closely their own description overlaps with Assemble's, and all facts shown come from the YC company records — nothing is estimated.
What are the best alternatives to Assemble?
| Alternative | What it does | Batch | Team | Status |
|---|---|---|---|---|
| Fithub | — | Winter 2010 | — | Inactive |
| Insoshi | — | Winter 2008 | — | Inactive |
| Versori | Agentic integrations & automations for enterprise | Winter 2023 | 16 | Acquired |
| DemandSphere | SEO & Content Marketing Intelligence | Summer 2010 | 40 | Active |
| Optilly/Installmonetizer | Fb ad optimization platform | Winter 2012 | 11 | Inactive |
| Arcten | Lab working on long-horizon autonomous research and coding agents | Fall 2025 | 2 | Active |
| Enjamb Labs | The AI Workforce for Biopharma | Spring 2026 | 2 | Active |
| Riverbank | Infrastructure Cartography | Summer 2025 | 1 | Active |
| Brushes | iPad drawing software. | Summer 2010 | — | Inactive |
| A Thinking Ape | We build communities through massively multiplayer mobile games | Winter 2008 | 75 | Acquired |
| Mailgun | Email API service. | Winter 2011 | 51 | Acquired |
| AeroFS | Secure Enterprise Collaboration. | Summer 2010 | 40 | Acquired |
Is Assemble still active?
Assemble 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 Assemble. They are then ranked on how closely their own description overlaps with Assemble's, so the closest matches come first rather than whoever happens to share a tag.