Summary
David Liddle is a transformational people and culture leader, founder and CEO with over two decades building award-winning HR, mediation and leadership businesses that blend restorative justice, behavioural science and systems thinking. Named the #1 HR Most Influential Thinker in 2025 and featured on the Thinkers50 Radar, he created the widely adopted Resolution Framework™ and the People and Culture Operating Model™ used by major organisations worldwide. An accomplished author and speaker, his work bridges community-level restorative practice—originating from pioneering mediation programmes in the 1990s—with modern HR tech through platforms like Apaxio®. He leads multiple ventures including The TCM Group, People & Culture Global and AiCE, combining consultancy, events and ethical AI governance to drive inclusive, high-performance workplaces. Outside of boardrooms he remains hands-on—cycling, parenting three children and maintaining a microcontroller hobby that hints at a practical, tinkering curiosity beneath his strategic remit.
9 years of coding experience
7 years of employment as a software developer
Community and Race Relations Human Rights equality and social policy, Community and Race Relations Human Rights equality and social policy at Edge Hill University
MBA with Distinction Organisational behaviour marketing finance and accounting business ethics research methods, MBA with Distinction Organisational behaviour marketing finance and accounting business ethics research methods at De Montfort University
Senior Leadership Development Innovation Cultural Intelligence Human Resources Collaboration, Senior Leadership Development Innovation Cultural Intelligence Human Resources Collaboration at Common Purpose