Substack Raises $100M + Closing Sponsors

July 23, 2025 |
Keenen Charles

This week, Substack announced a huge funding round that values it at over a billion. And there's a look at how to close sponsorships, getting your logo into inboxes, and more.

Also the featured newsletters this week cover AI, travel, movies, and more!

📰 News & Articles

Substack raises $100M in Series C

Newsletter platform Substack valued at $1.1 billion in its latest funding round.

How To Close The 7 Core Sponsor Types

A guide to selling newsletter sponsorships, covering the seven core sponsor types and how to close them.

Email's fingerprints are everywhere you look

A nostalgic look at email and how it's influenced other platforms.

How to Get Your Logo Into the Inbox

A look at free and paid ways you can get your logo shown in popular email clients.

⭐ Featured Newsletters

GoQueer

love where you go

Simplified AI

Stay Ahead in the AI Revolution

Movies of Note

Free weekly movie recommendations direct to your inbox.

The Back Bacon Brief

A daily NFL brain snack. Served with Canadian spice.

Help! I'm TRAppe-d!

The Feel-Good Travel Report

See Ya

This is our weekly newsletter covering tips and tools for newsletter operators and everything else happening in the email newsletter space. Hope you enjoyed it!

Keenen Charles

Keenen is the creator of InboxReads and a believer in the future of newsletters and email for sharing great content.

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