Substack

What Substack does

Substack is a subscription-based publishing platform that enables independent writers, journalists, and other creators to monetize directly with their audiences through paid email newsletters. Founded in 2017 and headquartered in San Francisco, the company has evolved from a pure newsletter product into a multi-format creator platform spanning newsletters, video, podcasts, and live streaming, with the core offering remaining a self-serve publishing environment where creators retain ownership of intellectual property, mailing lists, and subscriber payments.

The platform's technology stack centers on a web-based self-serve product with iOS, Android, and now Apple TV/Google TV client applications, payment processing via Stripe and Apple's in-app purchase infrastructure, and video infrastructure provided by Mux. Distinguishing technical features include an ML-powered comment moderation system ('Reply Rules'), a generative-AI translation pipeline covering English to 15 languages and inbound from 100 languages, a personalized recommendation engine ('For You' feed and Explore leaderboards), and a Recording Studio for native video publishing with automated clip and thumbnail generation. Community features — short-form Notes, Chat, and co-livestreaming — extend the platform toward social networking rather than one-way newsletter distribution.

Substack's revenue model is anchored on a 10% commission on paid creator subscriptions, with creators retaining roughly 90% of subscription revenue and Stripe/Apple processing fees deducted on top. Reported subscription GMV flowing to creators exceeds $600M annually. Newer, smaller revenue lines include a native advertising pilot (where Substack is initially not taking a cut), TV-app video subscriptions (creators retain 90%), and Apple in-app purchase commissions (Apple takes 30% year one and 15% thereafter). Reach is significant: 50M+ active subscriptions, 5M+ paid subscribers, 35M+ monthly active subscribers, and 47.6M monthly unique visitors. Customer segments span independent writers, content creators across verticals (food, music, fashion, news, politics, healthcare), traditional publishers (e.g., The Economist, Reach), and celebrities/ public figures seeking direct fan communication.

Name

Substack

Legal name

Substack Inc.

Website

https://substack.com

Company type

Private

Founded year

2017

Operating status

Operating

Headcount range

101–250 employees

Short description

Substack is a subscription-based publishing platform that enables independent writers, journalists, and creators to monetize audiences via paid newsletters, now expanded into video, podcasts, live streaming, and community tools across web, mobile, and TV apps.

Ownership category

akta.pro rank

Product category

Newsletter Publishing Platform

NAICS

Media Streaming Distribution Services, Social Networks, and Other Media Networks and Content Providers (516210), Software Publishers (513210), Broadcasting and Content Providers (516)

SIC

Services-Prepackaged Software (7372)

akta.pro primary industry

RSS/Feed Readers & Subscription Aggregators (MPACAKAD)

akta.pro secondary industry

Software/SaaS Subscriptions (Consumer & Prosumer) (CRAFAIAB)

Keywords

• Newsletter publishing platform
• Subscription content management
• Creator monetization software
• Independent publishing tools
• Creator economy platform

Headquarters

HQ city

San Francisco

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2C

Offering type

Software

Cost components

Personnel, Technology or R&D, Infrastructure, Marketing or Sales, Operations

Revenue model

1. Subscription Revenue Share: Substack takes a 10% cut of subscription revenue from creators. This is the primary revenue stream, with approximately $600 million in total subscription revenue flowing to creators annually.
2. Native Advertising/Sponsorships: Substack piloted a native sponsorship program connecting newsletters with brands. Initially, Substack is not taking a cut of sponsorship revenue generated by creators.
3. Apple App Store Commission: Substack collects payments through iOS in-app purchases where Apple takes up to 30% commission in the first year and 15% thereafter, with Substack retaining a portion.
4. Video Content/TV App: Substack generates revenue through subscription access to video content on its TV apps, with creators receiving 90% of revenue.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels5 records

Core offering

Substack is a subscription-based publishing platform that enables independent writers and creators to publish newsletters, video, podcasts, and live streams directly to subscribers via email and in-app channels. The platform handles payment processing, audience management, content distribution, and community features, taking a 10% revenue share of paid subscriptions. It has expanded into a multi-format creator ecosystem supporting video, audio, chat, and short-form social posts (Notes), with monetization through subscriptions and a native sponsorship program.

Product overview

Substack is a newsletter publishing platform that has evolved into a multi-format creator platform offering newsletters, video, audio podcasts, and community tools. The core platform provides publishing, subscription monetization (10% revenue share), and audience management, supported by additional features including Substack TV for streaming video content on Apple TV and Google TV, Recording Studio for video creation with auto-generated clips, Notes for short-form social posts, Chat for community interaction, Reply Rules for AI-powered comment moderation, and a Recommendation Network for subscriber growth. The platform also offers native sponsorships for advertising revenue and a $20 million Creator Fund to support video content development.

Differentiator

Problem solved

Functional benefit

Products and services

• Substack Core Publishing Platform Substack's primary newsletter publishing platform that enables writers to send newsletters to subscribers via email and in-app, with built-in subscription monetization, audience management, and content distribution.
• Substack TV Television application launched January 2026 for Apple TV and Google TV, enabling subscribers to stream video content and livestreams directly on television screens with subscription access tied to existing memberships.
• Substack Recording Studio Video recording and publishing feature that allows creators to pre-record videos with up to two guests, share screens, and auto-generate clips and thumbnails.
• Substack Chat

Quantifiable outcome

• Creators retain 90% of revenue from video subscriptions
• +2 more outcomes

Named customers13 records

Segments4 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration2 records

AI capability9 records

Feature4 records

Partnerships

Five partnerships are on record, tiered minor and core.

• PolymarketminorStrategic or Co-development Partner · 1 February 2026Substack partnered with prediction market Polymarket to integrate real-time betting data into newsletters. The partnership allows writers to embed prediction market data and has faced criticism over ethical implications of mixing gambling with journalism.
• Mark SwierszczminorOthers · 1 February 2026Former Google Canada executive hired as Substack's first head of partnerships in Canada, representing the platform's third-largest market globally.
• CocoonminorStrategic or Co-development Partner · 1 August 2021Substack acqui-hired the team behind Cocoon, a subscription-based social media app for close friends, which continued to operate independently. The acquisition aligned with Substack's community building initiatives.
• LetterminorStrategic or Co-development Partner · 1 July 2021Letter, a platform for written debate that attracts prominent writers and promotes thoughtful online discourse, joined Substack to improve infrastructure and support for independent writers.
• MuxcoreTechnology or IntegrationMux provides video API infrastructure for Substack, enabling live and on-demand video features on the platform. Substack is listed as a trusted customer of Mux.

Scale indicators8 records

Recent moves10 records

Expansion highlights7 records

Direct peers

• Beehiiv: Beehiiv is a newsletter publishing and monetization platform directly competing with Substack for independent creators. Both offer subscription commerce, audience analytics, and recommendation networks, with Beehiiv emphasizing higher revenue share and creator migration tools — a documented alternative destination for Substack creators.
• Ghost: Ghost is an open-source publishing platform that powers subscription newsletters and memberships, competing directly with Substack for technical writers and publishers. Ghost's open-source model and lower platform fees have made it a credible migration target, especially for developers and established media brands.
• Medium: Medium is a digital publishing platform offering partner-program monetization for writers, competing with Substack for independent journalism and essay-style writing. Both serve creators seeking direct audience relationships, though Medium's curation model and lower creator share differentiate it from Substack's ownership positioning.
• Patreon: Patreon is a subscription-based membership platform for creators across verticals (podcasts, video, writing), overlapping directly with Substack's subscription commerce and creator monetization model. Patreon's broader content-type support and tiered membership structure make it the leading adjacent competitor for creator subscriptions.
• Kit (formerly ConvertKit): Kit is an email-first creator marketing platform offering newsletters, automations, and commerce tools to independent creators. It competes with Substack for email-driven creator monetization and has expanded into commerce and audience growth, making it a close functional peer for newsletter-based creator businesses.
• Kajabi: Kajabi is an all-in-one creator platform offering courses, newsletters, memberships, and digital products. It overlaps with Substack's subscription and newsletter capabilities but targets course creators and digital product sellers, making it a partial competitor for high-monetization creator use cases.

Emerging players

• Mighty Networks: Mighty Networks enables creators to build paid communities with content, courses, and events, overlapping with Substack's Chat and community features. Its community-first model differentiates from Substack's newsletter-first approach but addresses the same creator need for direct audience monetization outside social platforms.

Broad incumbents

• Twitter/X: Twitter/X is the dominant microblogging and short-form social platform that Substack's Notes feature directly competes with. Both serve writers and creators seeking audience reach, and Twitter's declining trust creates migration tailwinds for Substack's owned-audience positioning.
• YouTube: YouTube is the dominant video platform that Substack TV and Recording Studio directly target. While YouTube serves vastly larger video audiences, Substack's integrated newsletter-plus-video model offers creators cross-format distribution with ownership economics YouTube does not provide.
• Mailchimp: Mailchimp is a leading email marketing platform serving SMBs and creators with newsletters, automations, and audience tools. While more broadly positioned than Substack, it overlaps in newsletter publishing and list management for creator and small-publisher use cases.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks1 record

Key highlights6 records

Customer concentration

• Xx.com/SubstackInc
• YouTubeyoutube.com/@substack
• LinkedInlinkedin.com/company/substack
• Instagraminstagram.com/substack
• TikToktiktok.com/@substack
• Facebookfacebook.com/substackinc

Revenue estimate

Valuation estimate

Number of profiles

Profiles8 records

Subsidiaries2 records

Funding overview

Funding rounds9 records

Investors17 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A4 records

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Substack