Welcome to CoEfficient& CoEfficient& is a small team of passionate professionals focused on solving the big problems of our time. We care deeply about environmental, social and economic sustainability and we believe in simple solutions to bring about radical change. We know that everything is inter-connected and that people matter, and therefore we adopt a systems perspective and design approach to each project, providing strategic management insight, catalysing change through meaningful engagement with your team and embedding sustainability as the new business as usual.