Extreme Foundership

Substacknewsletter · by Jean Lafleur · English

The operating system for founder-level impact and leadership at any stage of your career.

Audience
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Publishing
No recent posts
Observed from indexed posts
Last post
Feb 3, 2026
Feb 3, 2026
Likely audience
Senior executives
Inferred from post content

Extreme Foundership is a Substack newsletter by Jean Lafleur covering Leadership development, Team dynamics and Management psychology. Its most recent indexed post is from Feb 3, 2026.

Topics

Recent posts

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Compiled from public pages · refreshed Oct 19, 2026 · How NewsletterFIT collects and labels data