Harro Willemsen in

Harro Willemsen

Sharpshooter · DISC type DC
Directeur at 3to1 Sales Artists
📍 The Randstad, Netherlands

Harro Willemsen is a senior sales trainer, author, and founder of 3to1 Sales Artists. An innovator in the sales profession, he designs new methodologies and training on topics like AI in sales. He is a graduate of Erasmus University Rotterdam, and people often describe him as passionate, creative, and intelligent.

Outside of his core training role, Harro is a prolific author of sales books, including the bestseller "The Par5 method. " He frequently shares his expertise through articles, a YouTube channel, and as a guest or host on various business podcasts, aiming to elevate the sales profession.

Unique fact: The name of his company, 3to1, represents his mission to help professionals achieve three times the results of an average performer.

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Experience
22 Years
Current Role
Directeur
Location
The Randstad, Netherlands
Personality Overview

How Harro shows up

Fast But Analytical
Thorough Evaluator
Precise But Practical

They like to move fast and expect the same from others. More than the product, they care about the impact of the product. They are not always relationship oriented.

Priorities

Topics Harro cares about

AI in Sales
Author of the book "AI voor sales" and actively discusses how artificial intelligence is changing the sales profession in his social media posts.
Sales Prospecting
A core area of his expertise, having authored multiple books on the subject, including "De Par5 methode" and "Het grote acquisitie praktijkboek".
+5 more topics Login to view topics
Career

Work history

5-2003
Directeur
3to1 Sales Artists
10-2016
Video’s en trainingsmethodieken op het gebied van verkoop, marketing, management, en presenteren.
3to1 Sales Artists
9-2006
Publicist
3to1 Sales Artists
9-2025
Auteur: AI voor sales
De Par5 methode
2-2019
Auteur: De Par5 methode
De Par5 methode
In the press

Media appearances

No media yetWe could not find public media appearances for this person.
Education
1990 - 1991
Bedrijfskunde
Erasmus University Rotterdam
1990 - 1991
none
Erasmus University Rotterdam
Social presence
in
Behavioral profile

DISC profile (public)

D

Dominance (D)

Dominance (D) reflects how goal and task oriented a person is, and their ability to accomplish results irrespective of how demanding the circumstances might be. Those scoring high tend to be motivated by winning, competition, and success.

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