/Companies

Mesmer

YC X25

San Francisco, US · Founded 2025 · 7 employees · Hiring · 19 known investors

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Mesmer builds an operating system for engineering teams that uses AI and ground-truth data from code and tickets to provide visibility into engineering work and automate management tasks. The product serves engineering leaders and CTOs seeking to understand organizational productivity, identify bottlenecks, and capture AI-related productivity gains.

Also known as Mesmer Labs, Inc.

Founders & leadership· Y Combinator alumni (X25)

Mesmer was founded in 2025 by João de Paula, Sergio Oliveira Bergmann, and Lucas Silva.

JDJoão de Paula
João de PaulaCEOHe previously co-founded Origin Financial and Glio, and has background in product leadership and engineering.
SOSergio Oliveira Bergmann
Sergio Oliveira BergmannFounderHe brings over 15 years of engineering leadership experience from fintech and digital banking sectors.
LSLucas Silva
Lucas SilvaCTOHe previously cofounded Qual Farmácia in 2018 and served as Director of Engineering at Origin Financial, with 18 years of engineering leadership experience.
AZ
Amanda ZorziChief of Staff

Investors · 19

KAYAlisted by KAYAPrague · $108K – $3.2M

How we know: KAYA's portfolio page · the VCSheet dataset · Y Combinator's founder network · Not right? Tell us

468 CapitalreportedBerlin

How we know: the VCSheet dataset · Y Combinator's founder network · Not right? Tell us

Batch Venturesreported

How we know: Y Combinator's founder network · Not right? Tell us

Blast.Clubreported$5.5M

How we know: Y Combinator's founder network · Not right? Tell us

Global Founders CapitalreportedBerlin · $1M

How we know: Y Combinator's founder network · Not right? Tell us

Rice CapitalreportedCovina

How we know: Y Combinator's founder network · Not right? Tell us

Singularity Venturesreported

How we know: Y Combinator's founder network · Not right? Tell us

Funding

SEC filings, press & company announcements

$15M disclosed across 1 of 2 rounds · 2019

Source: company announcements and press reports — follow each round's link for the claim.

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Companies working in the same space as Mesmer.

Legal entities · 1

corporate structure
Mesmer Labs, Inc.

In the news

Frequently asked questions

What does Mesmer do?
Mesmer builds an operating system for engineering teams that uses AI and ground-truth data from code and tickets to provide visibility into engineering work and automate management tasks. The product serves engineering leaders and CTOs seeking to understand organizational productivity, identify bottlenecks, and capture AI-related productivity gains.
Who founded Mesmer?
Mesmer was founded by João de Paula, Sergio Oliveira Bergmann, Lucas Silva in 2025.
Who are Mesmer's investors?
Mesmer's investors include Gaingels, Imagination Capital, KAYA, Maiora Rebel Ventures, Pioneer, Rebel Fund, Y Combinator, 468 Capital and 11 more.
How much funding has Mesmer raised?
Mesmer has disclosed $15M raised across 1 of its 2 known rounds.
Where is Mesmer headquartered?
Mesmer is headquartered in San Francisco, US.