Letterhead

Letterhead is the all-in-one newsletter platform for publishers and enterprise brands managing multi-newsletter operations. Built by the team behind WhereBy.Us and The New Tropic, Letterhead spun out as its own company around 2020 and raised a $5.3M seed round. The platform handles the full business side of newsletters — editorial workflows, governance, delivery, analytics, advertising sales, subscriptions, and monetization tools — in a unified dashboard. It serves enterprise clients like Techstars and Patch.com who manage large newsletter portfolios. The platform distinguishes itself from individual creator tools by focusing on organizations running dozens to thousands of newsletters, offering centralized control with RSS integrations, social media content pulls, and advertiser management.