Substack
Active#4 worldwide · Creator toolsEstimated valuation · Creator tools · United States
Newsletter and podcast publishing platform that lets writers and creators run paid subscriptions, with an app, recommendations network and video, taking a share of subscription revenue.
Estimated valuation
AI · Creator tools ranking (worldwide)- Anchor
- Last known equity round: Series C · USD 100M · Jul 2025
- Published valuation
- USD 1.1bn · Jul 2025
An indicative editorial estimate produced by AI, imperfect by nature: neither a financial valuation nor investment advice. Only the market sets a company’s value. Method
Uback rankings
How the AI ranks →| Ranking | Tier | Rank | Edition | Next update |
|---|---|---|---|---|
| Creator tools · worldwide | Top 43 | #4 | Edition 0 · Oct 2026 | 23 Apr 2027 |
Funding history
| Date | Round | Amount | Type | Investors |
|---|---|---|---|---|
| Jul 2025 | Series C | USD 100M | Equity | BOND, The Chernin Group, Andreessen Horowitz, Rich Paul, Jens Grede |
Rounds as cited by Uback’s rankings. Equity, debt and grants are shown separately; only equity rounds count towards the valuation anchor.
Independent analyses
By industry professionals & analystsIndustry professionals and financial analysts can publish their own analysis of Substack as a PDF. It must answer at least one of these four questions, and stick to them:
Analyses are the opinion of their authors, not of Uback. They are checked before publication.
Comparable companies in creator tools
Full creator tools ranking →Last updated: Oct 2026Report an error
Uback is a content publisher and an aggregator of non-binding expressions of interest. It provides no investment advice, receives no mandate and takes part in no transaction. Rankings, ranges and brackets are editorial estimates produced by AI, purely indicative.