The Letterhead platform

One platform. Every layer of the newsletter operation.

One platform across portfolio, production, intelligence, revenue — and, when you're ready to own the send, audience and deliverability too. Built for teams running newsletters at scale, on the stack you already use.

How it fits together

The orchestration layer between your content and your audience.

Letterhead doesn't replace the systems you've already paid for. It sits between them and runs the workflows those systems weren't built for — content products that ship continuously, across many newsletters, to many audiences, with revenue built in.

Letterhead Studio

Portfolio · Production · Intelligence · Revenue. Agentic workflows across every layer of the newsletter operation.

Four core capabilities

Four capabilities. Pick what you need today. Add the rest when it's time.

PORTFOLIO

Grow the portfolio, not the workload.

Workspaces, governance, and a true portfolio-wide view of every brand, audience, and goal. Your team will optimize and grow every single list and newsletter like never before.

PRODUCTION

Cut production time by 75%. Increase quality by ∞

The email builder you've dreamed of. Global and lockable templates, an easy but powerful drag-and-drop editor, intelligent and personalized content curations, approval flows and so much more. No HTML, no chaos.

INTELLIGENCE

Know exactly what's working.

See what content is driving results, where people are engaging, what strategies are working, and recommendations powered by billions of sends. Automate and simplify reporting, so you can focus on what's next.

REVENUE

More conversions, better CPMs, every send.

Direct ads, programmatic, house promotions, conversion CTAs: however email drives revenue, manage and fulfill and track it in seconds across every newsletter and audience.

The outcome

An audience engagement flywheel that delivers.

Great content earns engagement. Engagement earns revenue. Revenue funds the content. Letterhead runs every step of the loop so the loop actually loops.

Production — Ship faster, on brand.

Editorial gets back to editorial. The platform handles assembly, governance, and approvals.

Intelligence — Learn what works.

Content attribution and audience tiers built from your own data. Decisions on signal, not gut.

Engagement — Opens, clicks, loyalty.

+32% engagement in 90 days is the average, not the outlier.

Revenue — Every send earns.

+22% revenue lift on monetized sends after 180 days.

What every Letterhead deployment includes

The things that should just work, working.

Built into every Letterhead account, regardless of which capabilities you turn on first.

Stack-agnostic integrations

20+ ESPs, CMSs, CRMs, and ad servers. Connected in days, not quarters.

Brand and design governance

Lock the parts of the newsletter the brand depends on. Let editorial move fast on the rest.

Cross-portfolio data

Every newsletter, brand, and campaign visible in one view. Compare apples to apples.

Deliverability monitoring

Sender reputation, list health, and authentication watched continuously across every send.

SSO + access controls

SSO/SAML available, role-based access, exportable activity trail. The controls procurement asks for.

An implementation partner

Onboarding led by a Letterhead lead who knows your stack — template setup, integration wiring, and rollout support.

Integrations

Plays well with the stack you already pay for.

ESP, CMS, CRM, ad server, data warehouse — Letterhead reads and writes from the systems your team already uses.

Two ways to run it

Use our built-in sending, or bring your own?

BRING YOUR OWN ESP

Keep sending where you send today.

Add production, intelligence, and revenue on top of the ESP you already use. No migration.

OWN THE SEND

Consolidate onto one platform.

User-level audience intelligence and Letterhead Send, on the complete email operating system.

Fifteen minutes. The parts that matter to you.

See whether Letterhead fits how your team works. We'll show you the parts that matter to your role and answer the questions a deck won't.