Mesmer YC Application

Spring 2025Active

Mesmer went through Y Combinator in the Spring 2025 batch as a B2B company. Below: what the company does, who founded it, and its application to YC, reconstructed question by question in the real YC form.

YC batch: Spring 2025
Industry: B2BEngineering, Product and Design
Team size: 7
Status: Active
Launched: 2025

Founders

João de PaulaFounder
Sergio Oliveira BergmannFounder
Lucas SilvaFounder

What Mesmer does

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.

Mesmer's YC application, reconstructed

Y Combinator application

Mesmer, Spring 2025 batch. The real form questions, answered from public data.

Founders2
Company7
Progress7
Idea4
Equity3
Curious2
Batch Preference1

Company

Company name

Mesmer

Describe what your company does in 50 characters or less.

The operating system for the 100x Engineering Team

What is your company going to make? Please describe your product and what it does or will do.

Mesmer is platform software that acts as the operating system for engineering teams looking to dramatically increase productivity. It helps CTOs and founders turn AI agents into leverage across their organization, enabling faster delivery, better quality, less bureaucracy, and clear insights into bottlenecks and next steps.

Where do you live now, and where would the company be based after YC?

We live in San Francisco, CA, and intend to keep the company based here after YC.

Explain your decision regarding location.

San Francisco is where we built the product and have access to engineering talent, early users, and the startup ecosystem that supports our growth.

21 more answers in the full application

Founders, Progress, Idea, Equity, Curious, Batch Preference are in the full version. Create a free account to open it in YC Insights, next to every other YC batch.

See full application

Frequently Asked Questions

Is this the real Mesmer YC application?

No. Y Combinator keeps submitted applications private. This is a reconstruction: the real YC form questions, answered from Mesmer's public data (launch notes, founder backgrounds, product description). It shows how a company like Mesmer would present itself to YC, not the text they submitted.