The Princess Royal Trust for Carers is a UK-wide network of 144 independent Carers’ Centres, which offer support including information, training, facilitating access to statutory services and benefits reviews. The Trust supports the network by providing a national voice for carers, and facilitating The Network to provide carers with the support they need. This report shows that an investment of less than £5 million in services provided by five carers' centres resulted in at least £73 million worth of social gains in a year.