Hundred: Automated inspection for precision hardware parts (opens ycombinator.com)
Hundred inspects precision hardware parts to catch sub-100μm visual defects before they reach the assembly line.

Benchtop station that scans precision hardware parts in their shipping trays and flags sub-100 µm cosmetic defects at incoming inspection.
Hundred replaces manual microscope inspection of precision hardware parts with a benchtop station. Operators load a whole shipping tray; it grades every part against the customer's cosmetic specs, says which parts to quarantine and keeps a photo of each part so engineers can trace later failures. It targets incoming quality checks (IQC) at contract manufacturers. Its launch says operators who know common defects do not move with production as manufacturers shift from China to the US or India. Hundred is in Y Combinator's Fall 2026 batch; its founders previously worked at Meta, Google, Magic Leap, Citadel and Twitch.
Hundred inspects precision hardware parts to catch sub-100μm visual defects before they reach the assembly line.