Substack
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.
- Company typePrivate
- Founded2017
- HeadquartersSan Francisco, United States
- Headcount101–250
- GTM typeB2C
- OfferingSoftware
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.
Substack firmographics
Firmographics- 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
Substack industry classification
Industry- 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
Where Substack is headquartered
LocationHeadquarters
- HQ city
- San Francisco
- HQ country
- United States
- HQ region
- North America
Offices2 records
Markets served
Substack business model
Business model- GTM type
- B2C
- Offering type
- Software
- Cost components
- Personnel, Technology or R&D, Infrastructure, Marketing or Sales, Operations
Revenue model
- 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.
- 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.
- 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.
- 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
| Model | Billing | Price |
|---|---|---|
| Freemium | Pay-as-you-go | Free tier for creators with no monthly fees |
Go-to-market motion2 records
Distribution channels3 records
Marketing channels5 records
Substack product offering
Product offeringCore 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
Companies that use Substack
Customer profileNamed customers13 records
Segments4 records
Ideal customer profiles2 records
Substack technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Integration2 records
AI capability9 records
Feature4 records
Substack partnerships and signals
Strategic signalPartnerships
Five partnerships are on record, tiered minor and core.
- PolymarketminorSubstack 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 SwierszczminorFormer Google Canada executive hired as Substack's first head of partnerships in Canada, representing the platform's third-largest market globally.
- CocoonminorSubstack 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.
- LetterminorLetter, a platform for written debate that attracts prominent writers and promotes thoughtful online discourse, joined Substack to improve infrastructure and support for independent writers.
- MuxcoreMux 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
Substack competitors and assessment
Company assessmentDirect 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
Substack social profiles
Digital presenceSubstack financial estimates
Financial estimateRevenue estimate
Valuation estimate
Substack leadership team
Management profileNumber of profiles
Profiles8 records
Substack subsidiaries and ownership
Company hierarchySubsidiaries2 records
Substack funding detail
Funding detailFunding overview
Funding rounds9 records
Investors17 records
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Substack M&A and investment
M&A and investmentM&A4 records
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Substack
What does Substack do?
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.
Is Substack a public or private company?
Substack is a private company. It is classified as venture growth investor backed and is currently operating.
When was Substack founded?
Substack was founded in 2017. It employs 101 to 250 people.
Where is Substack based?
Substack is headquartered in San Francisco, United States, in the North America region.
How does Substack make money?
Four revenue lines are on record. Subscription Revenue Share is the primary driver. The others are native Advertising/Sponsorships, apple App Store Commission and video Content/TV App.
Who are Substack's main competitors?
Direct peers on record are Beehiiv, Ghost, Medium, Patreon, Kit (formerly ConvertKit) and Kajabi. Mighty Networks is listed as an emerging player. Broad incumbents are Twitter/X, YouTube and Mailchimp.
Does Substack have an API?
No public API is recorded for Substack.
What industry is Substack in?
Substack's product category is Newsletter Publishing Platform. Its primary akta.pro industry code is MPACAKAD, RSS/Feed Readers & Subscription Aggregators, with a secondary code of CRAFAIAB, Software/SaaS Subscriptions (Consumer & Prosumer). Its NAICS code is 516210 and its SIC code is 7372.