Newsletter Insights — independent newsletter & sponsorship data across 41K+ newsletters
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Tell us your brand and audience. We send back 10-15 newsletters matched to your brief, with sponsor history and CPM ranges per placement.
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7K
Top 25% in Business
substack
Business
0.37%· ~26/post
(comments + likes) / subscribers
vs 0.00% category avg
Weekly
1.5 posts/week avg
vs 1.0/week category avg
$5/mo
Category avg: $5/mo
786
newsletters in Business
Top 25% in Business
out of 786 newslettersPublishing Frequency
Weekly
Last published Oct 5, 2026
Usually publishes Sun, Sat
1.5 posts/week avg