Sidekick alternatives
TL;DR: 12 companies doing similar work to Sidekick in B2B, ranked by how closely they match what Sidekick 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 Sidekick. They are scored on how closely their own description overlaps with Sidekick's, and all facts shown come from the YC company records — nothing is estimated.
What are the best alternatives to Sidekick?
| Alternative | What it does | Batch | Team | Status |
|---|---|---|---|---|
| Seal | All-in-one workspace for companies making regulated products | Summer 2020 | 22 | Active |
| Walter | AI Employee for Manufacturing Operations | Spring 2026 | — | Active |
| Fithub | — | Winter 2010 | — | Inactive |
| Insoshi | — | Winter 2008 | — | Inactive |
| Zip | The future of B2B spend | Summer 2020 | 500 | Active |
| Serve AI | AI for Field Service Enterprises | Summer 2024 | 6 | Active |
| Docucharm | Automate paperwork by turning documents into structured data. | Winter 2019 | 2 | Inactive |
| Smartbase | AI-native ERP for manufacturers | Spring 2026 | 2 | Active |
| onetool | App-Store for SaaS: one invoice, one user management, one login. | Winter 2020 | 9 | Inactive |
| gaiia | all-in-one operating system (OS) for telcos | Winter 2021 | 100 | Active |
| LaunchHear | LaunchHear was a startup attempting to make PR scale in the same way… | Winter 2010 | 2 | Inactive |
| Cofia | AI automations that implement themselves | Winter 2026 | 3 | Active |
Is Sidekick still active?
Sidekick 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 Sidekick. They are then ranked on how closely their own description overlaps with Sidekick's, so the closest matches come first rather than whoever happens to share a tag.