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REV1 (YC W26) — Claude code for mechanical engineers

REV1 is Claude code for mechanical engineers, starting with automating the process of turning 3D designs into 2D manufacturing drawings – which is more than 25% of all of what a mechanical engineer does - our software does it in minutes. Compressing hours of work into minutes while delivering consistent, higher quality results.

REV1 is a Y Combinator company in the Winter 2026 batch. Its directory entry describes it as: Claude Code for Mechanical Engineers. The founders listed are Alex Rivero (Founder/CEO), Louis Liu (Founder/CTO) (Y Combinator directory entry, February 2, 2026).

6 more companies from YC Winter 2026 ↓

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REV1

New accelerator entry · 2026-02-02 · the record

Winter 2026
batch
2
people
Early
stage
United States of America
region
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What the record says

BatchWinter 2026
Announced2026-02-02
StageEarly
StatusActive
Team size2
IndustryB2B
Sub-industryB2B -> Engineering, Product and Design
RegionsUnited States of America, America / Canada
BasedSan Francisco, CA, USA
HiringNo
Sitehttps://rev1.so
Previously known asHefaisto

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Also in YC Winter 2026

Same batch, B2B first.

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In their words

REV1 is Claude code for mechanical engineers, starting with automating the process of turning 3D designs into 2D manufacturing drawings – which is more than 25% of all of what a mechanical engineer does - our software does it in minutes. Compressing hours of work into minutes while delivering consistent, higher quality results.

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What the Full Report on REV1 covers

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  2. Which Company This Is

  3. What They Do, And How The Money Works

  4. Who Runs It, And How To Reach Them

  5. The Money: Funding, Valuation, Runway

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  8. Sources

    1 cited source found

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REV1: Accepted into Y Combinator Winter 2026
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Permanent URL: https://mentionfox.com/funding/yc-rev1
Last updated 2026-10-20
Primary record: Y Combinator directory entry
REV1 (YC W26) — Claude code for mechanical engineers. MentionFox, 2026-10-20. https://mentionfox.com/funding/yc-rev1