LetterBid is a marketplace for newsletter sponsorships where brands find the right newsletters to advertise in and book them, and newsletter creators list their sponsorship packs, manage offers and campaigns, and get paid, all in one place.

How much does LetterBid cost?

Creating an account is free for both newsletters and brands with no subscriptions or setup fees. Brands pay the exact price of a sponsorship only once a newsletter accepts. LetterBid keeps 25% of each completed sponsorship as its fee; the newsletter receives 75%.

How does a sponsorship work on LetterBid from start to finish?

A brand sends an offer or books a pack. The newsletter accepts, counters, or declines. Once accepted, the brand pays to secure the booking and LetterBid holds the payment. The newsletter publishes on the agreed date and submits a delivery report. The brand reviews it, and when approved, the newsletter's earnings are added to their balance and paid out on the next payout date.

What happens if the brand doesn't approve the delivery report?

If the brand doesn't review the delivery report within 3 days, the work is approved automatically and the newsletter is paid. If the brand reports a problem, the newsletter has 72 hours to fix it or reply.

Who is LetterBid for?

Two groups: newsletter creators who want to earn from sponsorships, and brands that want to reach engaged newsletter readers. Each account is either a newsletter account or a brand account.

Fact sheet · Email marketing

LetterBid

Newsletter sponsorship platform connecting brands with publishers

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A marketplace where brands discover newsletters and book sponsorship placements, while newsletter creators sell sponsorships and get paid through Stripe.

Overview

Screenshot of the LetterBid homepage — What letterbid.com looks like

LetterBid is a newsletter sponsorship marketplace that connects brands with newsletter publishers. Brands discover newsletters matching their target audience, book sponsorship placements, send custom offers, and manage campaigns in one place. Newsletter creators publish storefronts with their sponsorship packages, receive offers, and get paid through Stripe.

The platform operates on a transparent model: joining is free for both sides, brands pay only after a newsletter accepts an offer, and LetterBid holds payment until delivery and approval. LetterBid keeps 25% of each sponsorship while newsletters receive 75%. Sponsorships are structured around verified audience data, fixed-price packages, clear timelines, and delivery reports to ensure clarity and reduce deals falling apart.

Feature facts

Newsletter discovery with verified audience data
Three sponsorship placement types: dedicated email, sponsored ad, banner ad
Direct, multi-newsletter, and recurring campaign types
Custom offer negotiation with up to 3 counter offers
Payment held in escrow until delivery approval
Verified newsletter badges with audience verification
Delivery reports and brand approval process
Public storefront for newsletters with shareable booking link
Stripe integration for payouts on the 15th of each month
Dispute resolution with LetterBid team intervention

Pricing

Pricing model: Freemium

Free to join for both brands and newsletters. Brands pay the sponsorship price only after a newsletter accepts. LetterBid keeps 25% of each sponsorship as fee (includes payment processing); newsletters receive 75%.

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LetterBid specifications

Specifications of LetterBid
Section	Email marketing
Website	letterbid.com
Votes²	0

LetterBid metrics

Fact file for letterbid.com: Ahrefs Domain Rating and Majestic link facts, each with the change since the last fact check.
Metric	Value
Domain Rating	0 no change since last check
Trust Flow	0 no change since last check
Citation Flow	0 no change since last check
Referring domains	0 no change since last check
External backlinks	0 no change since last check

Fact: Ahrefs Domain Rating checked 12 Nov 2026, fact changed 10 Nov 2026. Fact: Majestic checked 10 Nov 2026, fact changed 10 Nov 2026. Link facts from Majestic. Trust Flow, Citation Flow and Topical Trust Flow are trademarks of Majestic-12 Ltd.

LetterBid domain fact sheet

Open the fact sheet

Read from the public RDAP record on 10 Nov 2026, 13:50 UTC.
Domain age	9 days
Registered	3 Nov 2026
Expires	3 Nov 2027
Registrar	NameCheap, Inc.
DNSSEC	Not signed

Every domain fact for letterbid.com

LetterBid launch receipt sheet

What we have measured for LetterBid since it went live on SaaS Directory Info on 10 November 2026.

0 Domain Rating (Ahrefs) no change since launch
at launch: 0 (10 Nov 2026); latest: 11 Nov 2026
0 Trust Flow (Majestic)
first measured 10 Nov 2026
0 Referring domains (Majestic)
first measured 10 Nov 2026

Day 1 since launch. Next receipt: day 30, 10 Dec 2026. The figures report a change; they do not say what caused it, and many things can. No figure here is a guess.

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Frequently looked up

Q1What is LetterBid?: LetterBid is a marketplace for newsletter sponsorships where brands find the right newsletters to advertise in and book them, and newsletter creators list their sponsorship packs, manage offers and campaigns, and get paid, all in one place.
Q2How much does LetterBid cost?: Creating an account is free for both newsletters and brands with no subscriptions or setup fees. Brands pay the exact price of a sponsorship only once a newsletter accepts. LetterBid keeps 25% of each completed sponsorship as its fee; the newsletter receives 75%.
Q3How does a sponsorship work on LetterBid from start to finish?: A brand sends an offer or books a pack. The newsletter accepts, counters, or declines. Once accepted, the brand pays to secure the booking and LetterBid holds the payment. The newsletter publishes on the agreed date and submits a delivery report. The brand reviews it, and when approved, the newsletter's earnings are added to their balance and paid out on the next payout date.
Q4What happens if the brand doesn't approve the delivery report?: If the brand doesn't review the delivery report within 3 days, the work is approved automatically and the newsletter is paid. If the brand reports a problem, the newsletter has 72 hours to fix it or reply.
Q5Who is LetterBid for?: Two groups: newsletter creators who want to earn from sponsorships, and brands that want to reach engaged newsletter readers. Each account is either a newsletter account or a brand account.

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