Adamant
Substacknewsletter · by Jason Yeh · English
Insights into improving fundraising for startups
- Audience
- 1K subscribers
- Shown publicly on Substack
- Publishing
- Every two weeks
- 5 posts indexed in the last 90 days
- Last post
- Sep 21, 2026
- 40 days ago
- Likely audience
- Startup CEOs
- Inferred from post content
Adamant is a Substack newsletter by Jason Yeh covering Fundraising strategy, venture capital and startup growth. NewsletterFIT indexed 5 posts from it in the last 90 days, most recently on Sep 21, 2026. Shown publicly on Substack: 1K subscribers.
Topics
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Sponsors detected
No sponsored posts detected in the last 180 days of indexed posts.
Detected automatically from posts marked as sponsored. Detection can miss or misread placements.
See the full picture on Adamant
Subscriber momentum over time, every detected sponsor with the source post, companies and people it mentions, guests, and an alert when any of it changes.
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Compiled from public pages · refreshed Oct 17, 2026 · How NewsletterFIT collects and labels data
