Treeka is a new form of organisational consultancy helping businesses thrive in the growing complexity of the 21st Century. We aim to deliver on both human and organisational growth. We enable teams to work together in better ways while fostering the growth of everybody involved. Our use of vertical development theory helps individuals and groups to grow and prosper while providing a map for ongoing development. We use adult development theory in designing group interventions that build capacities like feedback, problem solving and challenging conversations.