YCX25· AI· DevtoolsMesmer
The operating system for the 100x Engineering Team
Founders
- João de PaulaFounder/CEO
- Sergio Oliveira BergmannFounder
- Lucas SilvaFounder/CTO
Same space
Competitors
Closest in what they build, same category.
Adjacent
Overlapping tags, a different niche.
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RiverF26The AI desktop.Shared: productivityActive
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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.
Berlin, Berlin, Germany
Mesmer: questions
Which YC batch was Mesmer in?
Mesmer was in Y Combinator's Spring 2025 batch (X25).
Is Mesmer still active?
Y Combinator lists Mesmer as active.
Who founded Mesmer?
Mesmer's founders, as listed on its YC page: João de Paula (Founder/CEO), Sergio Oliveira Bergmann (Founder), Lucas Silva (Founder/CTO).
Where is Mesmer based?
Mesmer lists Berlin, Berlin, Germany as its location on YC's directory.
Not affiliated with Y Combinator. From YC's public directory. Logos via logo.dev; trademarks belong to their owners.