Letterhead

Letterhead is a newsletter platform built specifically for media organizations and publishers who want to monetize through sponsorships. It combines email sending with a built-in marketplace that connects creators to brands, alongside analytics tools to track performance and manage advertiser relationships.

Best for publishers earning revenue from sponsorships rather than subscriptions. If you're running a professional newsletter and want sponsor matching and management baked into the platform, Letterhead saves you from piecing together separate tools.