Substack
YC W18 ↗San Francisco, US · Founded 2017 · Delaware corporation · 90 employees · 8 known investors
Substack is a publishing platform that allows writers to create newsletters, cultivate audiences, and earn revenue through reader subscriptions.
Founders & leadership· Y Combinator alumni (W18)
CB
Chris Bestin𝕏Founder/CEO
JS
Jairaj SethiinFounder
HM
Hamish McKenzieinFounder/COO
AC
Andrew ChenDirector
Investors · 8
Connetic VenturesCovington · $250K – $500K
FundersClubSan Francisco · $250K – $5M
J17 Capital
Wisdom VenturesLos Gatos
Wonder VenturesLos Angeles · $100K – $1.5M
Y CombinatorSan Francisco · $500K
Andreessen Horowitzreported · 2 sourcesMenlo Park · $500K – $50Mvia Andrew Chen · led
Bond Capital ManagementreportedSan Francisco · $100K – $25M
Reported raises · per SEC filings
Form D private placements▶$3.3MraisedMay 2023 · 1 investors · Other TechnologyRule 506(c)
▶$3.3MraisedMay 2023 · 1 investors · Other Technology
Rule 506(c)Officers, directors & promoters on the filing
- Hamish McKenzieDirector
- Christopher BestExecutive Officer, Director
- Andrew ChenDirector
- Offering amount
- $5M
- Amount sold
- $3.3M
- First sale
- May 2023
- Incorporated
- Corporation, Delaware
- Federal exemptions
- 06c
▶$65MraisedJun 2021 · 33 investors · OtherRule 506(b)
▶$65MraisedJun 2021 · 33 investors · Other
Rule 506(b)Officers, directors & promoters on the filing
- Christopher BestExecutive Officer, Director
- Hamish McKenzieDirector
- Andrew ChenDirector
- Offering amount
- $65M
- Amount sold
- $65M
- First sale
- Apr 2021
- Incorporated
- Corporation, Delaware, 2017
- Federal exemptions
- 06b
▶$19.1MraisedJul 2019 · 32 investors · OtherRule 506(b)
▶$19.1MraisedJul 2019 · 32 investors · Other
Rule 506(b)Officers, directors & promoters on the filing
- Christopher BestExecutive Officer, Director
- Hamish McKenzieDirector
- Andrew ChenDirector
- Offering amount
- $19.1M
- Amount sold
- $19.1M
- First sale
- Jul 2019
- Incorporated
- Corporation, Delaware, 2017
- Federal exemptions
- 06b
Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.
In the news
- Why is Naomi Klein Funding Substack’s Hate Machine?karlbode.com · 2026
- Substack raises $100M, becoming unicorn with $1.1B valuationaxios.com · 2025
- Substack raises $100M from Chernin Group, Andreessen Horowitz, Skims CEO, and more | TechCrunchtechcrunch.com · 2025
- Substack Raises $100 Million, Betting on Subscriptions but Coming Around to Adsnytimes.com · 2025
- Substack brings video to its Chat feature | TechCrunchtechcrunch.com · 2024
- Substack opens up a $2 million community fundraising round | TechCrunchtechcrunch.com · 2023
- A new economic engine for cultureon.substack.com · 2023
- Substack introduces 'private Substacks' that readers can request to subscribe to • TechCrunchtechcrunch.com · 2023


