Substack-2

San Francisco, California, United States

Substack-2, based in San Francisco, California, United States, has 12 investors on file, among them Andreessen Horowitz, Atelier Ventures and Duro Ventures. Its latest round on record is Series C+, 1 Dec 2025. Its site turns away automated reads, so VCinfo could not check it; it is listed because an investor's own portfolio page links to it.

substack.com

Funding

1 round on record

Latest roundSeries C+1 Dec 2025

Since that round11 monthsno later round on record

Investors in its rounds52 with a VCinfo profile

Dec 2025Series C+Led by TCG, The Chernin Group, with Andreessen Horowitz and 2 others

Round sizes and total raised are on Fundup AI, our sister product for funding data.

Investors

12 investors on file

Investor	Evidence	Type
Andreessen Horowitz	Portfolio page	Venture capital
Atelier Ventures	Portfolio page	Venture capital
Duro Ventures	Portfolio page	Venture capital
FundersClub	Portfolio page	Venture capital
Garage Capital	Portfolio page	Venture capital
General Catalyst	Portfolio page	Venture capital
Lemonade Capital	Portfolio page	Venture capital
Metaplanet	Portfolio page	Venture capital
TCG	Page + round	Venture capital
UpHonest Capital	Portfolio page	Venture capital
Wisdom Ventures	Portfolio page	Venture capital
Y Combinator	Portfolio page	Accelerator

A company is shown only after its own site answers and carries its name. Sites are checked again on a schedule, because domains lapse and get bought. Round stages and dates come from Fundup AI; investor links come from portfolio pages and rounds; other facts name their source when you point at them. How we grade the data

At a glance

Latest round: Series C+, 1 Dec 2025
Investors on file: 12
Founded: 2017
Employees: 51-200
Headquarters: San Francisco, California, United States
Open roles: 19
Site: Could not be checked
Last checked: 12 Nov 2026

Company data by Fundup AI. Also from Wikidata.

Tech stack by StrataDB

Substack-2 runs on 6 tools StrataDB has found, including:

JavaScriptLookerOktaPostgreSQLPythonSnowflake

See the full stack, with sources, on StrataDB

Backed by the same investors

Companies sharing two or more investors with Substack-2.

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Airbnb3 shared

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GET /v1/companies/substack.com/investors
GET /v1/companies/substack.com/news

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VCinfo API

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# also
GET /v1/companies/substack.com
GET /v1/companies/substack.com/news

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