Justin So
Founder/CEOFounder & CEO at Sidekick (YC S26). Studied computer science at Penn. Previously Finance at Arm.
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Sidekick is an AI agent that runs custom manufacturing operations over text. Workers text a problem, photo, video, or voice memo and get an answer from the shop's own documents. It reads live machine data and acts on its own: flagging issues before they become downtime, opening and routing work orders, and placing purchase orders. No app, no login.
These shops run on tribal knowledge: a handful of veterans know how every job is set up, and they are retiring. Sidekick learns from every message it handles, so answers outlive the people who gave them, and shops run 15% more jobs with the same crew. Sidekick captures it as a byproduct of the work, in an industry that was never documented.
Founder & CEO at Sidekick (YC S26). Studied computer science at Penn. Previously Finance at Arm.
Founded 2026 · Source
Source-based assessment · automated evidence rules
The retained text does not establish product availability or customer use.
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