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Diagram

Diagram is a Montreal venture builder that co-founds and incubates fintech, insurance and health-tech startups rather than investing passively. Founded in 2016 by Francois Lafortune and backed by Portag3 Ventures, it is part of the Sagard platform and its companies include the mortgage fintech Nesto.

Venture CapitalMontrealFounded 2016diagram.vc
$100M+raised across multiple funds since 2016, led by Portag3 VenturesBetaKit

The people

Francois LafortuneCo-founder & CEO · 1 TechTO talk
PI
Paul Desmarais IIICo-founder & Chairmanprofile coming

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Working at Diagram

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On the TechTO stage

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About

Diagram (also known as Diagram Ventures) was founded in 2016 in Montreal as a venture builder that co-creates companies in fintech, insurance and health tech, providing capital and hands-on company-building. It is anchored by Portag3 Ventures and sits within the Sagard platform, with Paul Desmarais III as co-founder and chairman. It has raised a series of funds led by Portag3, reported at more than C$100M across vehicles, and its co-founded companies include Nesto.

Backers

Anchored by Portag3 Ventures and part of the Sagard platform; co-founded and chaired by Paul Desmarais III.

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Quick answers

What is Diagram?

A Montreal venture builder that co-founds fintech, insurance and health-tech startups, part of the Sagard platform and backed by Portag3 Ventures.

Who founded Diagram?

Francois Lafortune, its CEO, with Paul Desmarais III as co-founder and chairman, in 2016.

What companies has Diagram built?

Its co-founded companies include the Montreal mortgage platform Nesto.

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Maintained by TechTO · facts sourced and dated · last reviewed Jul 22, 2026