Profile name

A profile about the people, projects and experiences behind their work. Discover their career, contributions and connections.

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Company name

2022

Founder

Company name

2022

Founder

Profile name

A profile about the people, projects and experiences behind their work. Discover their career, contributions and connections.

CareerDetails being loaded

Cosigned byDetails being loaded

CosignedDetails being loaded

Company name

2022

Founder

Company name

2022

Founder

Substack

Substack is a media app where writers, podcasters, video creators, and communities publish directly to their audiences and earn through subscriptions. Chris Best, Hamish McKenzie, and Jairaj Sethi founded the company in 2017.

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Founders

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Substack

Backed by

Founders

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Team

Funding

All fundraising announcements are based on public sources. Please contact Cosign if you believe there are any discrepancies, or claim the profile to edit.

Data current as of July 17, 2025

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Substack

Media

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Organization name

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Cosigns Received

Substack

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Funding