Letterhead — The newsletter strategy guide for publishers.

The newsletter strategy guide for publishers.

Four ways to build an owned audience that grows, engages, and earns.

We built this from the publisher's seat.

Our founding team started and scaled WhereBy.Us, a profitable network of local newsletters that reached hundreds of thousands of readers and earned millions in advertising. We learned firsthand how hard it is to run, grow, and monetize a newsletter operation. Letterhead is the software we wished we'd had, built so other publishers can skip the pitfalls we hit.

Trusted by the publishers of 2,000+ newsletters.

Built with the people who run newsletters.

"We began looking for a solution like Letterhead over a year ago, and were unable to find anything like it. We considered building the tech, but realized it was going to be too cumbersome and expensive. When we found Letterhead, we were thrilled. Now, we recommend each company we incubate use it to scale their business."

— Aron Pilhofer, Executive Director, News Catalyst

"Letterhead has been a great partner for us. They were great in helping us increase newsletter revenue and introducing new email products to reach new audiences. Letterhead has been responsive, flexible and knowledgeable about our needs and our industry."

— Sarp Uzkan, Vice President of Transformation, McClatchy

Every channel you depend on is rented.

Search rented from Google. Social rented from Meta. Even your website is one algorithm change away from a 40% drop in traffic. The platforms train AI on the content you publish there.

SEARCH

RENTED
Rented from Google. Algorithm changes can take 40% of your traffic overnight.

SOCIAL

RENTED
Rented from Meta, TikTok, X. Your followers aren't yours; the platforms are.

YOUR WEBSITE

RENTED
Sits on top of search. Now sits inside AI summaries that don't link back.

EMAIL

OWNED
The one audience that stays yours when platforms shift, paid CAC climbs, and AI floods the rest.

The only audience you actually own is the one you can email directly.

The audience you email is the audience you own.

Owning your audience means owning the relationship and the contact information behind it. Build trust over time and you earn durable engagement, secure revenue, and real lifetime value. Email is still the best channel for it, returning around $40 for every $1 spent.

Most publishers under-invest in the one channel that's theirs.

There's a gap between what email can deliver and what it delivers for most publishers.

PLATFORM CONCENTRATION

About 74% of digital ad spend goes to the three big platform companies. The reach you rent there was never yours.

SAYS IMPORTANT, ACTS OTHERWISE

90% of publishers say email is very important to their future. Only 22% say their growing investment is paying off.

UNDERWHELMING INBOXES

Consumers rate publisher emails among the lowest-quality they receive. The bar to stand out is low.

BORROWED REACH

Search, social, and even your own site can lose traffic to one algorithm change. A direct email list can't be taken away.

Four ways to build an audience that's yours.

Personality

Build newsletters around your people.

Content

Put your existing work to work.

Growth

Ask for signups everywhere.

Revenue

Build in revenue from day one.

Build newsletters powered by personality.

People follow people.

Put your existing content to work.

Your other channels belong in every send.

Ask for signups everywhere.

You're not asking often enough.

Build in revenue from day one.

Plan to monetize before you launch.

The newsletter operating system behind the playbook.

Letterhead helps publishers run all of this in one place: editorial production, content and audience intelligence, revenue operations, and agentic workflows, on top of the ESP you already use.

Studio

The editorial layer for any ESP

Portfolio

Run 100 newsletters like one

Intelligence

Know exactly what's working

Revenue

Maximize ROI from every send

Audience

Engage every reader

Send

Get every send in the inbox

Agents

AI agents for your newsletter ops

API & MCP

The programmable platform