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  • Substack

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    Publishing and subscription platform for independent creators

    • Overview
    • Company

    About

    Substack provides publishing and subscription tools for writers and other creators. Publications can offer free or paid subscriptions and distribute written, audio and video material. Its network and reader applications are part of the publishing experience, which differs from a general-purpose enterprise marketing automation platform.

    Read more

    Its tools combine email distribution with hosted posts, podcast and video publishing, reader discussion and discovery within Substack. Publishers can export posts, subscriber data and related statistics from publication settings. The publication and its reader relationship are the main unit of work.

    Facts

    • Ownership
      View company information
    • Pricing model
      FreeUsage-based
    • Delivery and access
      Hosted softwareBrowser interface
    • Categories
      • Email sending platforms (ESP)
      • Newsletter publishing
    • Pricing
      View Pricing

    Explore by capability

    • Newsletter sending

    Related

    SoftwareSubstack

    Substack is a publishing platform that combines newsletters, websites, podcasts, video and paid subscriptions. Writers can publish posts that appear on a…

    View profile →

    Contact and locations

    Office · Mailing address

    548 Market Street PMB 72296
    San Francisco
    CA
    94104
    United States
    Get directions
    Website
    substack.com

    Company details

    • Legal name
      Substack Inc.
    • Year founded
      2017
    • Employees
      51–200

    Ownership and investment

    History and disclosed funding

    Deals, funding and ownership disclosures, as reported at the time.

    1. 2025-07-17

      Series C funding announced

      Historical disclosure

      US$100 million

      Substack announced US$100 million in Series C funding, led by BOND and The Chernin Group, with participation from Andreessen Horowitz, Rich Paul and Jens Grede. The company announcement does not give a valuation or ownership percentages.

      Substack founders’ announcement ↗ (opens in a new tab)
    2. 2021-03-30

      Series B funding agreement

      Funding agreed

      US$65 million

      Substack announced that it had agreed a US$65 million Series B led by Andrew Chen of Andreessen Horowitz.

      Substack

      Company announcement ↗ (opens in a new tab)
    3. 2019

      Series A funding

      Funding disclosed

      US$15 million (rounded)

      Substack’s SEC-filed company presentation records a US$15 million Series A in 2019, led by Andreessen Horowitz. The presentation uses a rounded amount and does not give an ownership percentage.

      Substack

      SEC-filed company presentation ↗ (opens in a new tab)

    Reported ownership & investment

    Pulse 2.0 reported a US$1.1 billion valuation for Substack in July 2025.

    The valuation is a press report and is not stated in Substack’s funding announcement. It does not establish current investor holdings or ownership percentages.

    Reported by Pulse 2.0 ↗ · Source checked 4 October 2026

    • Report

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