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Quint

Built for Teams Where
Correctness Matters

Quint was originally built and incubated at Informal Systems to solve a problem we faced firsthand: verifying the correctness of complex distributed systems before they fail in production.

We applied formal methods to consensus protocols, blockchain infrastructure, and other security-critical systems, where correctness isn't optional. As the tool matured and demand grew, Quint evolved beyond an internal capability and spun out into an independent company.

Today, Quint helps teams design, test, and reason about complex systems with confidence.

As systems become more dynamic and AI-driven, the need for reliable verification has only grown. Quint enables teams to move faster without sacrificing correctness nor understanding.

Our team brings together deep expertise in formal methods, production and distributed systems, security-first engineering, and AI-native development.

Quint is open at its core.

The language and foundational tools are open source and always will be. Our commercial offerings, advanced verification engines, runtime monitoring, and enterprise infrastructure, enable us to scale the platform and support teams building critical systems.

Meet our Leadership

Gabriela Moreira

Gabriela Moreira

CEO

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Arianne Flemming

Arianne Flemming

COO

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Zarko Milosevic

Zarko Milosevic

CTO

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Josef Widder

Josef Widder

Chief Scientist

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