InboxMarket.co
List Your Newsletter

The Marketplace for Newsletter Sponsorships.

Access high-trust audiences and place your brand directly in their inbox. It's the smarter alternative to traditional ads.

List Your Newsletter

The Daily Bite

#042
Verified
Food
Lifestyle
Cooking
Home
Premium
28,000
Subscribers
45%
Open Rate
Audience Breakdown
US65%
CA15%
UK10%
Other10%
$400
Per Sponsorship
S

Sarah Chen

124 reviews

How It Works

A simple, transparent process to get your brand in front of the right people.

1. Discover

Browse our blind marketplace of verified newsletters. Filter by audience, niche, and engagement metrics.

2. Book & Unlock

Book a sponsorship for a fixed price. Upon booking, we'll reveal the newsletter's identity and connect you with the owner.

3. Launch

Collaborate with the newsletter owner on your sponsorship content and launch your campaign to a high-trust audience.

Fixed, Transparent Pricing
Verified Audience Data
Direct Inbox Placement
High-Trust Audiences
GDPR Compliant
B2B Focused

Browse the Marketplace

Browse our inventory of high-trust, verified newsletters. We are a blind broker. Names are revealed post-booking.

The Daily Bite

#042
Verified
Food
Lifestyle
Cooking
Home
Premium
28,000
Subscribers
45%
Open Rate
Audience Breakdown
US65%
CA15%
UK10%
Other10%
$400
Per Sponsorship
S

Sarah Chen

124 reviews

Wanderlust Weekly

#101
Verified
Travel
Adventure
Culture
Deals
Premium
15,000
Subscribers
38%
Open Rate
Audience Breakdown
US40%
EU30%
AU20%
Other10%
$350
Per Sponsorship
A

Alex Martinez

88 reviews

The SaaS Playbook

#237
Verified
SaaS
B2B
Tech
Startups
Premium
9,500
Subscribers
51%
Open Rate
Audience Breakdown
US80%
CA10%
UK5%
Other5%
$275
Per Sponsorship
B

Ben Carter

213 reviews

Understand the Marketplace

Get a feel for the market. While prices vary by niche and audience quality, this chart provides a general idea of how sponsorship costs correlate with audience size.

Cost vs. Audience Size
Average sponsorship price based on number of subscribers.

Rent Trust, Don't Buy Clicks

Stop gambling on social media ads. Access verified, high-engagement audiences for a fixed price.

Traditional Ads
  • Expensive
  • Unpredictable
  • Low Trust
  • Gets Ignored (Ad Blindness)
InboxMarket
  • Fixed Cost (from $100)
  • Verified Data
  • High Trust
  • Direct Inbox Placement

List Your Newsletter

Join our marketplace and get discovered by top B2B advertisers. Our application process is quick and easy.