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PROOF is a B Corp boutique consultancy for a reason: we believe in creating value withhappy change. Change that leaders and employees both want to contribute to and are able tocontribute to. When people understand the direction, feel ownership and see their rolein the bigger picture, organizations move forward, and people are more happy. For more than 25 years, PROOF has helped leading organizations turn strategy intomeaningful change. We operate at the intersection of strategy, leadership, HR,communicationand the employee journey, helping organizations align people around transformation.

PROOF Questions

The PROOF annual revenue was $5.5 million in 2026.

Olivier Koning is the Creative Services Director of PROOF.

11 people are employed at PROOF.

PROOF is based in Amsterdam, North Holland.

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