01
Competence
Sales, negotiation, communication, technology and applied AI, team management.

Entrepreneur · CEO of Lebree
Sales, money, mind and purpose. Every week I write about behavior: what separates those who grow from those who get stuck.
Willian Polis · CEO of Lebree · Stanford Executive Program 2025

20
years as a tech entrepreneur
01 / About me
I've been a tech entrepreneur for 20 years. I've built a company, made mistakes, started over, and learned that growing in your career and business doesn't mean much if you break on the inside along the way.
I attended the Stanford Executive Program (SEP), class of 2025, and spent three months in California learning to solve real problems with few resources.
For 10 years I've also been talking about the non-material side of life: purpose, values, meaning, gratitude.
Today I'm the CEO of Lebree, where we use behavioral intelligence to understand sales and customer service conversations. And here I write about the combination that interests me most: competence, emotional control and awareness.
02 / Ideas & reflections
01
Sales, negotiation, communication, technology and applied AI, team management.
02
Self-control, anxiety, pressure, discipline and summaries of behavior books.
03
Economy, interest rates, currency and what changes for entrepreneurs, without cheerleading.
04
Purpose, values, faith, meaning and gratitude.
04 / Lebree
At Lebree, we analyze behavior in sales and customer service conversations (objections, tone, listening, response time) to help teams sell better with less strain.

Coming soon: a free assessment for you and your team.