LetterBid - Newsletter Sponsorship Platform

LetterBid - Newsletter Sponsorship Platform

A newsletter sponsorship platform that connects brands with newsletter publishers. Brands can discover newsletters, book sponsorship packages, or send custom campaign offers, while publishers can create storefronts, showcase their audiences, negotiate deals, and manage bookings and payments in one place. LetterBid makes buying and selling newsletter sponsorships simple, transparent, and seamless.

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All-time revenue
-

All-time

MRR
-

No active subscriptions

Founded
November 2026
RORomania

Revenue is verified withStripeStripe API key.Last updated: Nov 10, 2026, 06:06 AM

Startup insights
Value proposition

LetterBid makes newsletter sponsorships easier for brands and publishers. Discover newsletters, book sponsorship packages, send custom offers, or launch one campaign across multiple newsletters. Publishers can create storefronts, set their rates, and manage sponsorships in one place.

Problem solved

Newsletter sponsorships are often managed through endless emails, spreadsheets, manual negotiations, and separate payment processes. LetterBid simplifies the process with newsletter discovery, transparent pricing, direct offers, multi-newsletter campaigns, and secure payments in one platform.

Audience

Brands and newsletter publishers looking to connect through sponsorships.

Pricing

Free to join for both brands and publishers, with no subscriptions, setup fees, or upfront costs.

Team size

2–5 people

Funding

Bootstrapped

Domain Rating

0/100

letterbid.com

Ahrefs Domain Rating measures backlink profile strength on a 0 to 100 logarithmic scale.

Marketing channels

Product updates