Letterhead

Letterhead is a platform designed to help teams create, manage, and grow newsletter portfolios more efficiently. It addresses the problem of outdated, manual workflows that slow down production and limit the strategic value of email. The platform provides tools to move beyond a one-off campaign mindset, treating each newsletter as a measurable product with a focus on engagement, growth, and revenue.

The platform includes modules for portfolio management, editorial production, audience intelligence, and revenue operations. Its production tools feature a drag-and-drop editor with global templates and approval flows. The intelligence module provides content and audience insights, while the revenue module handles direct ads, programmatic, and house promotions. The platform also includes audience management, send and deliverability tools, and AI agents that can curate content and segment audiences. It is API-first with a native MCP server, webhooks, and Zapier integration, and it layers on existing ESPs and CRMs like Mailchimp, HubSpot, and Braze.

Letterhead is for teams running newsletter portfolios, from individual brands to large operations. It is offered in two packages: Studio, which layers onto an existing ESP, and Suite, a complete platform that includes audience and send capabilities. Pricing is based on the number of newsletters and audience size, and a test drive is available.