PMF Mastery
In 8 weeks, validate your biggest assumptions with real customers, win your first commitments, and leave with an evidence-based view of your product-market fit.
01What you walk away with
Independently confirmed by several ICP customers, not by your friends.
Tested against the competition and against the hardest rival: doing nothing.
Sign-ups, LOIs or pilot agreements. Things people don’t simply take back.
An evidence-based view of where you actually stand.
A system that keeps producing customer signal after the course ends.
One live call a week, Wednesdays at 16:00, 90 minutes, in English. The rest of the week you work on your own startup, with your own customers.
Week 1
Define the market narrowly enough to test.
Week 2
Identify the segment with the strongest problem intensity.
Week 3
Run interviews designed to challenge your assumptions.
Week 4
Prototype and test before committing engineering resources.
Week 5
Build a value proposition that matters specifically to your ICP.
Week 6
Move from positive feedback to actual customer commitment.
Week 7
Use AI to create the smallest artifact capable of testing your next assumption.
Week 8
Leave with an experimentation loop that keeps producing signal.
10 minutes of input. The rest is execution.
One focused video. No lecture library.
Create interview guides, landing pages, experiment plans and other test assets inside PMF Mastery.
The important work happens outside the platform, with actual customers.
Log what happened and update your PMF Signal Score.
02Who guides you
“I learned the expensive way what happens when you mistake applause for demand.”
Serial founder and co-founder of a unicorn. Today Boris works with founders on product-market fit and venture building, teaches at IMD and coaches startups through Innosuisse. He is the author of Human Signal, a practical guide to finding product-market fit in an AI-built world.
Boris Manhart
Author of «Human Signal», Co-Founder, Growth Unltd.
5 companies co-founded · 1 unicorn · 30+ founder teams coached each year
“The point isn’t to build faster. It’s to build the one thing the market will answer.”
Serial entrepreneur. Built and exited an adtech company, spent time in Silicon Valley and has been building platforms for large organisations for years, today as Head of Digital Sales at Switzerland’s largest telco. Turns strategy into working product: the tools, workflows and experiment systems teams actually ship. In PMF Mastery he leads Build with AI and the experiment loop, so what you build produces signal.
Marc Pittner
Co-Founder, Growth Unltd., Build with AI & Delivery
Serial entrepreneur · Adtech exit · Silicon Valley · Head of Digital Sales, telco
Where Boris teaches, coaches and partners
You need evidence that the problem is worth solving before building more.
Some customers want it, but you don’t yet understand why, for whom or whether demand is repeatable.
You need evidence before committing another six months of runway.
After eight weeks, you’ll have a much better answer.
“Boris understood us from day one, saw exactly where our challenges were, and led us through building the foundations that made us ready for strong growth.”
Martin GadientCEO, KemaroEight weeks. Ten founders. Weekly live sessions with Boris and Marc. Applications are reviewed personally.
No payment today. We’ll confirm your seat first.
Early Bird until 30 November
Founding Cohort, January 2027
CHF 1'290once
Regular price CHF 1'490
Early Bird until 30 November 2026
Founding Cohort price.
No payment today. We’ll confirm your seat first.
If you’re not convinced after the first two weeks, you get your full money back. No discussion.
Not ready for the cohort? Start with PMF Mastery Self-Service
Count on 4-6 hours: the 90 minute live call on Wednesday at 16:00, and the rest on your own startup. Every week asks for real customer work, interviews, tests and experiments, so you need to be able to reach customers during the week. No homework for the shelf, everything feeds your product directly.
No. In many cases, this is exactly when PMF Mastery creates the most value because you can test assumptions before committing significant resources to building.
You keep 12 months of access to PMF Mastery, including your evidence, experiments and Signal Score.
Then the program has done its job. A low score tells you where the evidence is weak and which assumptions to test next.
If you’re not convinced after the first two weeks, tell us and we’ll refund your full payment.
This is the first public cohort of PMF Mastery. We’re deliberately keeping it to 10 founders so Boris and Marc can work closely with every team. Founding Cohort members who sign up before 30 November join at CHF 1'290 instead of CHF 1'490, and help us make the program even better.
Founding Cohort · Max. 10 founders
Eight weeks to replace assumptions with evidence and make a better decision about what to build next.
January 2027 · Early Bird CHF 1'290 · Signal Guarantee