Founded by Tim Castle, recognized in the Worlds Top 30 Negotiation Professionals 2025 by Global Gurus and Author of multiple bestsellers including “The Art of Negotiation” and the award winning “The Momentum Sales Model,” The Negotiator’s Edge is the trusted partner for ambitious organizations that want to win with integrity.

We equip leaders and teams with proven frameworks to influence outcomes, strengthen relationships, and perform under pressure — combining timeless human skills with modern AI insights to create the next generation of negotiators.