It’s PROOF’s birthday

We’re celebrating! PROOF turns 20 in 2021. That’s two decades of putting our heart and soul into increasing people’s happiness at work – because winning outside starts with winning inside. Check out the video below for 20 years of PROOF in a nutshell. 

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Four labels

PROOF has reinvented itself time and time again over the last 20 years, and we’re not about to stop now.


At PROOF and as PROOF, we believe that change, big and small, only succeeds when you put your employees first and that they feel happy, too: informed, motivated and equipped to contribute to success. Because happy people make change happen!


We’re developing a new visual identity that will add even more power to our story. That’s coming soon. And here and now we can reveal the four PROOF labels we’re going to work under in the future. Three new, one familiar:

  1. The agency you already know: PROOF AGENCY | consultancy, concepts, execution.

  2. New is PROOF PEOPLE | interim professionals: PROOF employees who temporarily join clients inhouse to implement a specific change.

  3. Another newcomer is PROOF ACADEMY | knowledge sharing: sharing knowledge through publications, books, masterclasses, workshops (inhouse at the client and offsite) and lectures for diverse target groups.

  4. And then we have PROOF HOUSE | work, meet, learn: the new name for our home in the Veemarkt, Amsterdam, and a place where you will always be and feel welcome. Come on in!

Twenty colleagues

It’s our birthday, so we give away three masterclasses for you and 20 colleagues. The form is two half-day sessions online. The first is about change, alignment and the happy change model, taken from our latest book: Happy change. During the second half day, you apply what you have learned to your organisation. It’s first come, first served, so be quick. You can sign up by sending an e-mail to

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20, the whole year long

Don’t worry if you don’t win a masterclass. You know PROOF, we’re going to organise a lot more things. After all, we’ll be 20 for the whole year. And we’re really going to party when we turn 21! Save the date now: Sunday 1 May 2022 in the PROOF HOUSE. Great music, great food, great drinks, great company. Just as you would expect from us.

More PROOF news

Want to know more about PROOF?

Get the answers to your questions straight from our Managing Director, Sascha Becker. 

Sascha Becker
managing director


Valschermkade 37C

1059 CD Amsterdam

The Netherlands