# Substack funding: rounds and investors

> Substack has raised $115M across 3 rounds since 2019. Investors include Andreessen Horowitz, Y Combinator and Bond. Every round with its source.

Source: https://millionrounds.com/company/substack (Millionrounds; every figure on the page links to its filing or article)

United States · [Venture startup](https://millionrounds.com/companies)

# Who invested in *Substack*

3 rounds we have observed, with the 9 investors named in them. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.

Creator Economy Media

Raised 10 months ago Valuation: $1.1B, Mar 2026 Y Combinator: W18

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Funding summary Updated 5 Nov 2026

**$115M** raised across 3 rounds since 2019, from 3 sources

**$15M** Series A **$100M** Series C

- **Latest round:** Venture Jan 2026
- **Biggest round:** $100M Series C · Jul 2025
- **Investors:** 9 (3 led)

See who backed them

## The funding story

Each circle is a round, placed by date and sized by amount. The line above is the running total.

2020 2021 2022 2023 2024 2025 2026

**$15M** Series A

**$100M** Series C

**?** Venture

- **First round:** Series A, $15M
- **Biggest round:** $100M
- **Usual gap between rounds:** 6 years

## The rounds

- **Jan 2026** Venture **Amount undisclosed** *1 new* *4 returning* [Y Combinator](https://millionrounds.com/fund/y-combinator) [Andreessen Horowitz](https://millionrounds.com/fund/andreessen-horowitz) [Quiet Capital](https://millionrounds.com/fund/quiet-capital) [Bond](https://millionrounds.com/fund/bond) [Fifty Years](https://millionrounds.com/fund/fifty-years-industries-llc) Source recorded
- **Jul 2025** Series C **$100M** *6 new* *2 returning* [Bond](https://millionrounds.com/fund/bond) Lead [The Chernin Group](https://millionrounds.com/fund/the-chernin-group-tcg) Lead [Y Combinator](https://millionrounds.com/fund/y-combinator) [Andreessen Horowitz](https://millionrounds.com/fund/andreessen-horowitz) [Quiet Capital](https://millionrounds.com/fund/quiet-capital) [TCG](https://millionrounds.com/fund/tcg) [Jens Grede](https://millionrounds.com/fund/jens-grede) [Rich Paul](https://millionrounds.com/fund/rich-paul) Reported by TechCrunch
- **Jul 2019** Series A **$15M** *2 new* [Andreessen Horowitz](https://millionrounds.com/fund/andreessen-horowitz) Lead [Y Combinator](https://millionrounds.com/fund/y-combinator) Reported by On SEC filing: $19M sold, first sale Jul 2019

## Funding filed with regulators

Substack filed 3 raises, $87M in all. Filings say how much was sold and to how many investors; they never name the investors.

- May 2023 **$3.3M** 1 investor equity of $5.0M offered SEC Form D
- Apr 2021 **$65M** 33 investors equity SEC Form D
- Jul 2019 **$19M** 32 investors equity SEC Form D

## Founders and team

From the SEC filings it signed: 1 on the team.

- **Christopher Best** Executive Officer, Director i

On the board, as filed i *Andrew Chen* *Hamish McKenzie*

## Who was in which round

The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led.

**Series A** 2019 **Series C** 2025 **Venture** 2026 [Andreessen Horowitz](https://millionrounds.com/fund/andreessen-horowitz) L [Y Combinator](https://millionrounds.com/fund/y-combinator) [Bond](https://millionrounds.com/fund/bond) L [Quiet Capital](https://millionrounds.com/fund/quiet-capital) [The Chernin Group](https://millionrounds.com/fund/the-chernin-group-tcg) L [TCG](https://millionrounds.com/fund/tcg) [Fifty Years](https://millionrounds.com/fund/fifty-years-industries-llc) [Jens Grede](https://millionrounds.com/fund/jens-grede) [Rich Paul](https://millionrounds.com/fund/rich-paul)

## Everyone who backed them

[Andreessen Horowitz](https://millionrounds.com/fund/andreessen-horowitz) VC firm **3** rounds, led 1

[Y Combinator](https://millionrounds.com/fund/y-combinator) Accelerator **3** rounds

[Bond](https://millionrounds.com/fund/bond) Growth equity **2** rounds, led 1

[Quiet Capital](https://millionrounds.com/fund/quiet-capital) VC firm **2** rounds

[The Chernin Group](https://millionrounds.com/fund/the-chernin-group-tcg) VC firm **1** round, led 1

[TCG](https://millionrounds.com/fund/tcg) Private equity **1** round

[Fifty Years](https://millionrounds.com/fund/fifty-years-industries-llc) VC firm **1** round

[Jens Grede](https://millionrounds.com/fund/jens-grede) Growth equity **1** round

[Rich Paul](https://millionrounds.com/fund/rich-paul) Angel **1** round

Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=substack).

## Quick answers about Substack

### Who invested in Substack?

Substack's investors include Andreessen Horowitz, Y Combinator, Bond, Quiet Capital and The Chernin Group, and 4 more on record.

### How much has Substack raised?

Substack has raised $115M across 3 rounds since 2019. One round did not disclose an amount, so the total is a floor.

### When did Substack last raise?

Substack's most recent round was a Venture in Jan 2026.

### What was Substack's biggest round?

Substack's largest round on record is $100M (Series C), in Jul 2025, led by Bond.

### Who backed Substack first?

Substack's first round on record, in Jul 2019, was backed by Andreessen Horowitz and Y Combinator.

### What stage is Substack at?

Substack's latest named round is a Venture, in Jan 2026.

### Where is Substack based?

Substack is based in the United States.

### Who led Substack's rounds?

Andreessen Horowitz led the Series A in 2019; Bond led the Series C in 2025.

## Companies like Substack

In the same sector, and raised in the last eighteen months.

[**Fal** $1.4B · Nov 2026](https://millionrounds.com/company/fal)[**Pika** $216M · Oct 2026](https://millionrounds.com/company/pika)[**Indent** $7.2M · Oct 2026](https://millionrounds.com/company/indent)[**Overtime** $33M · Oct 2026](https://millionrounds.com/company/overtime)[**Pro Shop** $24M · Oct 2026](https://millionrounds.com/company/pro-shop)[**ParentConnect** $420K · Sept 2026](https://millionrounds.com/company/parentconnect)

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