Newsletter sponsorship platform connecting brands with publishers
Stage
Not given
Not given
Founded
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Based in
US
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Pricing model
Freemium
Freemium
Pricing
Free: 500 emails a month, up to 100 a day, no credit card required. Premium: $20/month billed yearly or $24/month month-to-month, includes 50,000 emails a month with no daily cap, then $0.40 per 1,000 additional emails. Enterprise: from $2,000/month billed yearly or $2,400/month month-to-month, incl
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%.
Key features
Automated Journeys for cart recovery and win-back flows
Free migration from Mailchimp or Klaviyo
Integration with ChatGPT, Claude, and Grok
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
What makes it different
5x lower cost than Klaviyo at 10,000 contacts
Every feature available on all plans including free
AI-powered campaign creation and automation
99.4% email delivery rate
Unlimited contacts and team members with no seat fees
Transparent, fixed pricing with no hidden fees or surprise charges
Payment held in escrow and released only after delivery proof and brand approval
Verified audience data for newsletters to reduce guesswork
No upfront payment required; brands pay only after newsletter acceptance
Dispute resolution system with fair split option if sides cannot agree
Banger
LetterBid