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Letterhead has raised $34 million in Series A funding, led by Peakspan Capital, to accelerate product development and market expansion.

PRIVATESep 28, 2026

Amount Raised

$34 Million

Round Type

Series A

MiamiSoftwareSaasAnalytics

Investors

PeakSpan Capital

Description

Letterhead, based in Miami, Florida, is the developer of a newsletter operating system. The company recently announced it raised $34 million in Series A funding to accelerate its product development and market expansion. This funding round was led by Peakspan Capital, with Matt Melymuka joining the Board of Directors. The new capital will help support Letterhead's growth as organizations adopt its platform for newsletter management.

Company Information

Company

Letterhead

Location

Miami, Florida, United States

About

Letterhead is the developer of a newsletter operating system designed to help organizations manage, automate, and scale their newsletter programs. Their platform centralizes newsletter management, automates production workflows, and provides audience and performance insights. It integrates with existing ESP, CRM, and CMS infrastructure. As a result, brands and publishers can manage multiple newsletters across audiences, teams, and markets.

Fundz sees it the moment Letterhead raises, hires an exec or expands, usually minutes after it happens, and tells you who to reach.

Predictive Intelligence
Strategic

ML-powered predictions for Letterhead's next move

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Funding Insights

What this usually means
Typical timeline to Series B
Series A companies typically raise their next round in 10-18 months

Letterhead raised. Fundz records a round at a median of 3.6 minutes from the SEC filing, with the decision-maker attached.

145 of these a day, filtered to the companies you pick. $29 a month, billed annually, and if it does not pay for itself in a year we refund it.

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Fundz is a real-time business intelligence platform powered by agentic AI that proactively delivers personalized daily signals, including funding rounds, executive changes, M&A activity, 13F institutional filings, SEC 8-K events, investor activity, and website modifications, based on each user's watchlist and ICP. A trusted data source at firms such as BlackRock, Oracle, Kleiner Perkins, LinkedIn, HubSpot, and Cloudflare, Fundz democratizes the institutional-grade intelligence that previously required a PitchBook or Bloomberg terminal. Features include FundzWatch™ for automated website change detection, Daily Briefing for AI-powered daily briefings, and unified cross-signal alerts across 285,000+ organizations. Developers and data teams can access these signals programmatically via the Fundz Funding Data API, with transparent published pricing.