Our Leadership Team Development Experts
At The Performance Equation, we believe that great leadership development starts with trust, depth, and clarity.
Our team brings together expertise in psychology, coaching, operations, and leadership development to create a serious, supportive partnership with our clients.
We work collaboratively to offer the insights, tools, and space that leaders and leadership teams need to grow, perform, and thrive.
Dr Marie Stopforth
Founder| Chartered Psychologist | Executive Coach
Hi, I'm Marie, founder of The Performance Equation.
I'm a Chartered Psychologist with over 20 years’ experience across psychology, performance, and leadership development based in Portsmouth, UK.
I originally trained in sport and exercise psychology and have worked with elite athletes, senior leaders, and leadership teams, helping individuals and groups perform under pressure, navigate change, and stay focused on what matters.
After 15 years in Higher Education, where I led programmes on behaviour change and human performance, I founded The Performance Equation to bring psychological insight to leadership and organisational development.
My work is grounded in scientific evidence, shaped by curiosity, and always tailored to the unique context of the client. I’m here to help leaders and teams think more clearly, act more effectively, and grow sustainably.
Katharine Tovery
Operations support| Client liaison
Katharine provides operational support and client liaison services for The Performance Equation.
With a background in professional administration and business support, Katharine ensures the smooth running of client engagements and acts as a trusted first point of contact for enquiries and scheduling.
Her calm professionalism, attention to detail, and commitment to service excellence help create a seamless experience for our clients, allowing our coaching and consultancy work to run efficiently and effectively behind the scenes.