Newsletter Insights — independent newsletter & sponsorship data across 33K+ newsletters
Browse all →Enter your email and we'll connect you with this newsletter.
Tell us your brand and audience. We send back 10-15 newsletters matched to your brief, with sponsor history and CPM ranges per placement.
$300·2-3 working days·refunded if we can't deliver
See what's includedfuture/proof's metrics, benchmarks, and sponsor data in one document
309K
Top 10% in Business
substack
Business
+1.1%
0.35%· ~1074/post
(comments + likes) / subscribers
vs 0.00% category avg
Weekly
0.7 posts/week avg
$25/mo
Category avg: $7/mo
1367
newsletters in Business
Top 10% in Business
out of 1367 newslettersPublishing Frequency
Weekly
Last published May 23, 2026
0.7 posts/week avg
