Substack

A place for independent writing.

San Francisco, United States · Founded 2017 · $180.3M raised

Employees
51–200
Founded
2017
Business Model
B2B
Total Funding
$180.3M
Last Round
$100.0M Series CJul 2025
Rounds
3

Totals include recorded grants and other qualifying funding, not just equity. What counts toward funding.

Indexed holds 3 funding rounds and 4 investors for this company. The full record is or through the API.

About

Substack is a media platform that lets writers, podcasters, and video creators publish directly to subscribers and earn money from subscriptions, keeping 90% of the revenue they generate. Creators can host newsletters, podcasts, and live video, build an audience through Substack's built-in discovery network of tens of millions of weekly readers, and access legal support through Substack Defender. The platform is free to start, with no platform fees or long-term contracts, and monetizes only when creators do.

Summary

Substack is a Marketplace company based in San Francisco, United States, founded in 2017. It has raised $180.3M in total across 3 rounds, most recently a $100.0M Series C round in Jul 2025. Investors include Andreessen Horowitz, Bond Capital and The Chernin Group.

Tech & App Stack

5 technologies & apps tracked

Every product and vendor across these categories, with where each signal came from.

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Funding History

Series CSeries CJul 2025
$100.0M

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Funding: Series A through Series C. Amounts, valuations, and investors where available.

Investors

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