Mesmer

The operating system for the 100x Engineering Team

·Developer Tools·YC Spring 2025·tracked since Sep 25, 2026
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Monthly revenue–Not shared yet
Rank–Unranked
Last 30 days–Growth in MRR
Revenue per founder–– founders

About Mesmer

Mesmer is the operating system for agentic engineering teams. A few engineering teams are accelerating at breakneck speed, while most are stuck with incremental gains. Mesmer exists so that gap doesn't come down to who gets lucky with their AI experiments. We help founders and CTOs turn agents into real leverage across their organization: faster delivery, better quality, less bureaucracy, and a clear view of where the bottlenecks are and what to do next. Hundreds of engineering teams have used Mesmer to >2x their productivity in the first quarter using our platform. We are a team of repeat founders and CTOs with 15+ years of experience, including leading engineering together at Origin Financial ($400M), the AI financial advisor founded by Mesmer's CEO.

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