Grow your newsletter without ad spend
A Co matches you with complementary newsletters for cross-promotion. Tap into aligned audiences, trade recommendations, and grow together — no paid ads required.
200+ newsletter creators already on the waitlist
Three steps to organic growth
No complicated setup. No ad budgets. Just smart matching and mutual growth.
Sign up & describe your newsletter
Tell us about your audience, content niche, subscriber count, and growth goals. Our algorithm needs this to find your ideal matches.
Get matched with complementary newsletters
Our audience overlap engine finds newsletters whose readers would love your content — and vice versa. Quality matches, not random pairings.
Cross-promote and grow together
Recommend each other to your audiences. Watch your subscriber counts climb through trusted, organic referrals from aligned creators.
The smarter way to grow
Newsletter growth doesn't have to mean burning cash on ads. There's a better way.
Organic, Sustainable Growth
Build your audience through genuine recommendations, not paid impressions that vanish when the budget runs out.
Zero Ad Costs
Stop pouring money into Facebook and Google ads. Cross-promotion is free — you trade value, not dollars.
Trusted Recommendations
Subscribers gained through creator recommendations have higher open rates, better engagement, and lower churn.
Smart Audience Matching
Our algorithm analyzes audience overlap and content alignment to pair you with newsletters that actually make sense.
Be first in line when we launch
Join the waitlist to get early access, priority matching, and a founding member badge. We're onboarding newsletter creators in batches to ensure quality matches.
Join the Waitlist
Tell us about your newsletter and we'll find your perfect matches.