Organizations We’ve Worked With

Client Praise

  • I hired Yossi to work with my administrative team and me on protocols for our meetings, decision making and collaboration. All of us appreciated the individual attention he dedicated to us in advance of our time together and the work as a group helped us in many ways. A map of our strengths revealed where we overlapped and where we needed to be more attentive to gaps. Yossi helped us develop common language and expectations for our work together that we continue to use. Throughout our time with him, he was kind, patient, observant, collaborative, and relatable. He understands schools and leadership roles and it is clear he is invested in helping school leaders thrive. 

    -Will Crissman
    Head of School, Tenacre Country Day School

  • Being a Head of School is a complex job that requires a balance of emotional intelligence, perseverance and grit. Being a good father and supportive husband requires much the same. Succeeding in both arenas seemed out of reach. Then Yossi introduced me to Positive Intelligence, a one-of-a-kind program designed to help you dig deep into your core to discover how your unconscious self sabotages your ability to find meaning, value, and happiness amid life's chaos. Yossi’s open, honest and caring personality creates the environment for one to take the first hard step on a road I am forever grateful for traveling.

    -Jordan Silvestri
    Head of School, Robert M Beren Academy

  • Going through the Positive Intelligence (PQ) program has had a profound impact on my life and I’m just getting started! Dr. Kastan was an incredible coach who helped ensure successful outcomes for the entire cohort. Without giving too much away, I was able to transform multiple parts of my life in a few short weeks both personally and professionally. 

    -Evan London
    Fortune 200, Financial Services

  • Working with Yossi has been invaluable. He has consistently challenged me to think differently, helping me approach leadership and complex situations with greater clarity and confidence. Most importantly, Yossi is someone I trust wholeheartedly. His insight, integrity, and genuine investment in my success have made him an indispensable coach and advisor. 

    -Jody Tick
    Executive Director, Sunflower Bakery 

  • Yossi guided our administrative team through the Working Genius framework with remarkable skill and insight. Through individualized coaching and two half-day retreats, he helped us understand our own profiles, build stronger connections, and create a practical 'playbook' for effective collaboration. Months later, we continue to reference his teachings, benefiting from improved teamwork and working harmony. Yossi’s responsiveness, flexibility, and approachable style have made a lasting impact on our leadership team, and we look forward to continuing our work with him.

    -Rose Helm
    Head of School - John Thomas Dye School

  • Yossi Kastan is much more than just a coach. He helped me discover my vision for the future of my company, and then helped me build out the clear strategy to reach that vision. He then challenged me to go beyond strategy, and to find my voice and purpose in the process. The result was me getting to a place of clarity - and for that I am deeply grateful. I can’t recommend Yossi highly enough—it will absolutely change your life!

    - David Cohn
    PhotoTap

  • Working with Yossi over the past two years has been one of the most meaningful investments I've made in my personal and professional growth. When I began working with him I felt stuck and was struggling to see new possibilities at my current job or beyond. Through his coaching I've developed the practical tools to approach work and life with greater intention and self-assuredness, and as a result of our work together I make decisions more confidently, communicate more effectively, and show up as a more thoughtful collaborative colleague and leader. One of Yossi's greatest strengths is his ability to truly listen and ask thoughtful questions. He has a remarkable ability to connect patterns across conversations and bring together insights from different sessions in ways that reveal connections I would not have made on my own. He helps me understand my challenges with a level of clarity and perspective that has been transformative, and created an environment where I am better able to find solutions to these challenges on my own -- both at work and in my personal life. I strongly recommend Yossi as a coach for anyone who wants more than advice. He doesn't tell you what to do. He helps you think more clearly, see yourself more honestly, and, ultimately, become a better version of yourself. If you feel stuck, knowing you're capable of more, his work provides the opportunity for real growth and improvement.

    -Tamar Sandel
    Admissions Director, Oakland Hebrew Day School