Could also be a VSC or CVO, and xyz Community/Voluntary Action is generally equivalent. The co-ordinating and support body for voluntary and community organisations in a geographic area, although actual structure and facilities vary immensely across the country. A Local Infrastructure Organisation (LIO).
A type of charity in England. CVSs are "the place at which local voluntary and community organisations speak to each other". They offer a wide variety of services and support for local organisations, for example training, or advice on funding.