OpenRelay alternatives
TL;DR: 12 companies doing similar work to OpenRelay in B2B, ranked by how closely they match what OpenRelay 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 OpenRelay. They are scored on how closely their own description overlaps with OpenRelay's, and all facts shown come from the YC company records — nothing is estimated.
What are the best alternatives to OpenRelay?
| Alternative | What it does | Batch | Team | Status |
|---|---|---|---|---|
| Eivod | — | Summer 2007 | 51 | Inactive |
| Stackq | — | Summer 2009 | — | Inactive |
| BitSample | — | Winter 2008 | — | Inactive |
| Oddpool | Institutional infrastructure for prediction markets | Spring 2026 | 2 | Inactive |
| Brushes | iPad drawing software. | Summer 2010 | — | Inactive |
| hardware intelligence | AI tools for the chips your AI runs on | Summer 2026 | 2 | Active |
| Upverter | The future of hardware design. A marketplace for hardware engineering… | Winter 2011 | 11 | Acquired |
| SnapMagic | AI-assisted electronics design | Summer 2015 | 23 | Active |
| Omnara | The Open-Source Alternative to Claude Managed Agents | Summer 2025 | 4 | Active |
| Simantic | Firmware simulation for AI agents | Fall 2026 | 4 | Active |
| Visibl Semiconductors | Custom silicon for power electronics | Winter 2026 | 3 | Active |
| CircuitLab | Online circuit simulator and electronic schematic editor. | Winter 2013 | 2 | Active |
Is OpenRelay still active?
OpenRelay 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 OpenRelay. They are then ranked on how closely their own description overlaps with OpenRelay's, so the closest matches come first rather than whoever happens to share a tag.