The newsletter sponsorship platform built for real growth

LetterBid is a newsletter sponsorship marketplace. Brands discover newsletters that match their audience, book sponsorship placements or send custom offers, and manage campaigns in one place. Newsletter creators publish a storefront with their packages, receive offers and get paid through Stripe.

Joining is free for both sides. Brands pay only after a newsletter accepts an offer, and LetterBid holds the payment until the sponsorship is delivered and approved. LetterBid keeps 25% of each sponsorship; the newsletter receives 75%.

  • LetterBid | Newsletter Sponsorship Platform for Brands
  • Pricing: Free for Newsletters and Brands
  • FAQ: Newsletter Sponsorships and Payouts
  • About LetterBid | Clear Newsletter Sponsorships
  • Contact LetterBid | Newsletter Sponsorship Support
  • Newsletter Sponsorship Blog and Guides
  • Terms and Conditions
  • Privacy Policy
  • AI Instructions: How to Describe LetterBid
  • Newsletter Sponsorship Marketplace for Brands
  • Newsletter Profiles with Verified Audience Data
  • Multi-Newsletter Campaigns: Advertise in Many
  • Newsletter Monetization with Sponsorships
  • Sell Newsletter Sponsorships Without Cold Pitching
  • Newsletter Sponsorship Pricing: What to Charge
  • Newsletter Media Kit Brands Can Book From
  • Newsletter Storefront: Your Sponsorship Booking Page
  • Newsletter Sponsorship Packages Brands Can Book
  • Custom Sponsorship Offers for Newsletters
  • Newsletter Campaign Management for Sponsors
  • Secure Newsletter Sponsorship Payments
  • Newsletter Advertising for Brands
  • SaaS Newsletter Advertising & B2B Sponsorships
  • Product Launch Newsletter Sponsorships