TL;DR: If you are replacing MadeSolid, the closest options are Efference, 6thSense, Iron Grid. The table below compares 12 alternatives on what they do, stage, size and status.
Every alternative below is compared on what it actually does, not just its category — so you can see which one genuinely replaces MadeSolid (YC Winter 2014).
Last verified:
The three closest alternatives to MadeSolid are:
| Alternative | What it does | Stage | Team | Status |
|---|---|---|---|---|
| Efference | — | YC Fall 2025 | 12 | Active |
| 6thSense | Nervous System for Physical AI | YC Summer 2026 | 4 | Active |
| Iron Grid | Foundational models for risk and quality. | YC Summer 2025 | 2 | Active |
| Boost Biomes | — | YC Summer 2019 | 12 | Inactive |
| General Instinct | Inference Infrastructure for Physical AI | YC Spring 2026 | 2 | Active |
| ThereCraft | — | YC Summer 2017 | 1 | Active |
| Antropi Robotics | Autonomous CNC factories for faster hardware | YC Fall 2026 | — | Active |
| Atum Works | Gigascale Nanomanufacturing | YC Spring 2025 | 3 | Active |
| StableBrowse | Building the Data Infrastructure layer for Physical AI. | YC Spring 2026 | 3 | Active |
| Arc | aerial videography | YC Summer 2012 | 2 | Inactive |
| JITX | Automatic circuit board design. | YC Summer 2018 | 18 | Active |
| Taobotics | Autonomous robots for retails. | YC Winter 2019 | 11 | Active |
It depends on your size. Efference is the closest match on what MadeSolid actually does. If you need something more established, sort the table by team size — larger teams generally mean more support and a longer track record. If budget is the constraint, the earlier-batch companies are usually the ones still competing on price.
MadeSolid is no longer listed as active, so anyone still relying on it should plan a migration to one of the alternatives above.
Every company here is Y Combinator-backed and was matched to MadeSolid on what it actually does — its own description of its product — rather than on a broad category label. Batch, team size and operating status come from the YC directory and are shown as-is. We do not rank by payment.
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