Epsilon3 (YC S21) — AI-Powered ERP, MES, and test software for complex operations
Epsilon3 is the AI-Powered ERP, MES, and Test Management Software for Complex Engineering, Manufacturing, & Operations. We are a growing team of engineers from SpaceX, NASA, Google, and Stanford with unique experience planning and executing over 100 space missions.
Epsilon3 is a Y Combinator company in the Summer 2021 batch. Its directory entry describes it as: AI-Powered ERP, MES, and Test Software for Complex Operations. The founders listed are Laura Crabtree (Founder), Max Mednik (Founder) (Y Combinator directory entry, June 30, 2021).
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Example from a real report (our sample on Target): “The Q2 2026 earnings report, published August 19, 2026, showed adjusted EPS of $2.46 against an expected $2.33” Source: CNBC
Epsilon3 is the AI-Powered ERP, MES, and Test Management Software for Complex Engineering, Manufacturing, & Operations. We are a growing team of engineers from SpaceX, NASA, Google, and Stanford with unique experience planning and executing over 100 space missions. We are applying what we learned to develop web-based solutions that make building and operating advanced systems as efficient, error-free, and enjoyable as possible. Want to join a fully remote, US-based SaaS startup on a mission to solve complex problems in aerospace, energy, defense, maritime, and biotech? Apply today!
Laura Crabtree
Founder
Max Mednik
Founder
Founders, titles and bios as the company published them. Photographs are our own copies of the ones on that record, so they do not break when the original link expires.
One of 160 companies held here in B2B › Operations.
No investor is drawn from a Form D — the form states how many invested and never who. The one investor on this graph is named because a batch has exactly one.
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Example from a real report (our sample on Target): “The Q2 2026 earnings report, published August 19, 2026, showed adjusted EPS of $2.46 against an expected $2.33” Source: CNBC
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The Short Answer
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What They Do, And How The Money Works
Who Runs It, And How To Reach Them
The Money: Funding, Valuation, Runway
Who Pays Them, And Who They Are Up Against
Warning Bells
Sources
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