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Letterhead Studio

Add a newsletter layer on top of the ESP you already use.

Studio brings editorial workflow, audience intelligence, and revenue ops to the stack you already run — Iterable, Salesforce, Braze, Mailchimp, and more.

No rip-and-replace. Keep sending where you send today.

  • Layer on, don’t migrate — keep your current ESP
  • Cut production time 75% with editorial workflow and templates
  • See which topics and segments actually move the audience
  • Sponsorships, house promos, and per-send reporting, built in
Studio — portfolio overview screenshot

Trusted by Townsquare Media, Condé Nast, Techstars, and hundreds more.

Book a 15-minute demo.

We’ll show Studio on a portfolio that looks like yours.

The world's leading newsletter teams run on Letterhead

What teams see after switching to Studio

75%
Less production time

per edition, on average

+32%
Engagement lift

90 days after switching

+22%
Revenue lift

on monetized sends after 180 days

What Studio adds

The whole operation, on top of your stack.

Production

Editorial workflow, templates, approvals, and curation that take hours out of every issue.

Intelligence

Content attribution and audience tiers built from the data already in your ESP and CRM.

Revenue

Sponsorship inventory, house promos, and per-send reporting in one workspace.

Portfolio

Governance and workspaces across every brand and audience — one view, no extra headcount.

Stack-agnostic

Runs on top of Iterable, Salesforce, Braze, Mailchimp, Cordial, Sailthru, and more.

Agents

Agentic workflows across every layer — give your team a team.

How onboarding works

Live in days, not a quarter.

Connect your ESP

Studio layers on top of what you already send with. Nothing to migrate, no audience to move.

Bring a recent edition

We map your templates, content blocks, and approval flow to how your team actually works.

Ship the next issue on Studio

Your editors get back to editing while the platform handles assembly, governance, and reporting.

It’s made newsletter advertising cleaner, more consistent, and far less time-consuming. Our newsletters have become the cornerstone of our strategy.

— Danielle Hastings, VP of Operations

The questions buyers ask first

Do we have to leave our current ESP?

No. That’s the point of Studio — it layers on top of the ESP you already use. You keep sending where you send today. Move the send later only if you want to.

How long does setup take?

Most teams ship their next edition on Studio within days. There’s no audience migration because your sending stays put.

Which ESPs do you support?

Iterable, Salesforce Marketing Cloud, Braze, Cordial, Mailchimp, Sailthru, and more, plus CMS and CRM integrations. If your stack isn’t listed, ask — we’ll map it on the call.

What's the difference between Studio and Suite?

Studio layers on your existing ESP. Suite is the complete email operating system and owns the send, with user-level audience intelligence. We’ll help you pick the right starting point on the demo.

See Studio on a portfolio like yours.

Fifteen minutes, the parts that matter to your role, and a direct answer to the question a deck won’t. No migration to get started.